research communications
Comparison of crystal structures of 4-(benzo[b]thiophen-2-yl)-5-(3,4,5-trimethoxyphenyl)-2H-1,2,3-triazole and 4-(benzo[b]thiophen-2-yl)-2-methyl-5-(3,4,5-trimethoxyphenyl)-2H-1,2,3-triazole
aDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, and bDepartment of Chemistry, University of Kentucky, Lexington KY 40506, USA
*Correspondence e-mail: pacrooks@uams.edu
The title compound, C19H17N3O3S (I), was prepared by a [3 + 2]cycloaddition azide condensation reaction using sodium azide and L-proline as a catalyst. N-Methylation of compound (I) using CH3I gave compound (II), C20H19N3O3S. The benzothiophene ring systems in (I) and (II) are almost planar, with r.m.s deviations from the mean plane = 0.0205 (14) in (I) and 0.016 (2) Å in (II). In (I) and (II), the triazole rings make dihedral angles of 32.68 (5) and 10.43 (8)°, respectively, with the mean planes of the benzothiophene ring systems. The trimethoxy phenyl rings make dihedral angles with the benzothiophene rings of 38.48 (4) in (I) and 60.43 (5)° in (II). In the crystal of (I), the molecules are linked into chains by N—H⋯O hydrogen bonds with R21(5) ring motifs. After the N-methylation of structure (I), no hydrogen-bonding interactions were observed for structure (II). The of (II) has a minor component of disorder that corresponds to a 180° flip of the benzothiophene ring system [occupancy ratio 0.9363 (14):0.0637 (14)].
1. Chemical context
In continuation of our work on the development of benzothiophene cyano combretastatin A-4 analogs as anti-cancer agents (Penthala et al., 2013), we have synthesized a series of novel CA-4 analogs by constructing a triazole ring structure (I) by chemical modification of the cyano group on the stilbene unit of cyano-CA-4 analogs utilizing a [3 + 2]cycloaddition azide condensation reaction with sodium azide in the presence of L-proline as catalyst. This chemical modification is essential to restrict the tendency toward cis–trans isomerization of the cyano-stilbene moiety in cyano-CA-4 analogs (Penthala et al., 2013). To further check the position of the hydrogen atom in the triazole ring system in (I), an N-methylation reaction was carried out on (I) using CH3I, resulting in compound (II).
2. Structural commentary
In order to obtain detailed information on the structural conformations of (I) and (II) for analysis of structure–activity relationships (SAR), including the position of the hydrogen atom in the triazole ring system of (I) and the position of methylation on the triazole ring system in (II), we determined the X-ray crystal structures of (I) and (II); see Figs. 1 and 2, respectively.
Selected geometric parameters are given in Tables 1 and 2 for (I) and (II), respectively. The benzothiophene rings are almost planar with r.m.s deviations from the mean plane of 0.0205 (14) in (I) and 0.016 (2) Å in (II), with bond distances and angles comparable with those reported for other benzothiophene derivatives (Sonar et al., 2007) and triazole analogs (Madadi et al., 2014). The triazole rings make dihedral angles of 32.68 (5)° and 10.43 (8)°, respectively, in (I) and (II) with the mean plane of the benzothiophene ring systems. The trimethoxyphenyl rings make dihedral angles of 38.48 (4) in (I) and 60.43 (5)° in (II) with the benzothiophene ring systems. In both compounds (I) and (II), deviations from ideal geometry are observed in the bond angles C1—S1—C8, N2—N1—C9, N2—N3—C10, which are compressed, and C1—C9—C10, C9—C10—C11, C2—C3—C4, which are expanded (see Tables 1 and 2). After N-methylation, no significant difference is observed for the N1—N2—N3 bond angle [116.2 (1) and 115.9 (1)°, respectively, for (I) and (II)]. The of (II) has a minor component of disorder that corresponds to a 180° flip of the benzothiophene ring system [occupancy ratio 0.9363 (14):0.0637 (14)].
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3. Supramolecular features
Hydrogen bonding and the mode of packing of (I) is illustrated in Fig. 3, and the mode of packing of (II) is illustrated in Fig. 4. In the structure of (I), the molecules are linked by intermolecular hydrogen bonds (N2—H2N⋯O2 and N2—H2N⋯O3), forming (5) ring motifs (Table 3), which propagate as chains along the [101] direction. Contacts between adjacent chains form two-dimensional pleated-sheet networks in the ac plane. No significant hydrogen-bonding interactions were found in the structure of (II).
4. Database survey
A search of the 2014 release of the Cambridge Structural Database on unit-cell dimensions for (I) and (II) revealed four triazole structures (HOZZAY, UPEWAO, SAFZEG & VUSNEC), although none bore any particular relation to compounds (I) or (II). A search on the triazole ring fragment with either H or methyl attached to the middle N atom revealed 48 and 17 hits, respectively, none of which contained either benzothiophene or trimethoxybenzene functional groups.
5. Synthesis and crystallization
The title compounds were prepared according to a previously reported procedure (Penthala et al., 2014). Recrystallization from methanol afforded (I) and (II) as yellow and pale-yellow crystalline products, respectively, which were suitable for X-ray analysis.
6. details
Crystal data, data collection and structure . H atoms were found in difference Fourier maps. Carbon-bound hydrogens were subsequently placed at idealized positions with constrained distances of 0.98 (RCH3) and 0.95 Å (Csp2H). Coordinates of the N-bound hydrogen were refined freely. Uiso(H) values were set to either 1.2Ueq or 1.5Ueq (RCH3) of the attached atom.
details are summarized in Table 4PLATON (Spek, 2009) and by an R-tensor (Parkin, 2000). To ensure satisfactory of disordered groups in the structure, a combination of constraints and restraints was employed. The constraints (SHELXL command EADP) were used to fix overlapping fragments. Restraints were used to maintain the integrity of ill-defined or disordered groups (SHELXL commands SAME and RIGU).
progress was checked usingIn structure (II), there was a small amount of a second conformation for the benzothiophene ring systems, with major and minor component fractions of 93.63 (14) and 6.37 (14)%, respectively.
Supporting information
10.1107/S1600536814023095/hg5414sup1.cif
contains datablocks global, I, II. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814023095/hg5414Isup2.hkl
Structure factors: contains datablock II. DOI: 10.1107/S1600536814023095/hg5414IIsup3.hkl
Supporting information file. DOI: 10.1107/S1600536814023095/hg5414Isup4.cml
Supporting information file. DOI: 10.1107/S1600536814023095/hg5414IIsup5.cml
In continuation of our work on the development of benzothiophene cyano combretastatin A-4 analogs as anti-cancer agents (Penthala et al., 2013), we have synthesized a series of novel CA-4 analogs by constructing a triazole ring structure (I) by chemical modification of the cyano group on the stilbene unit of cyano-CA-4 analogs utilizing a [3+2]cycloaddition azide condensation reaction with sodium azide in the presence of L-proline
as catalyst. This chemical modification is essential to restrict the tendency toward cis–trans isomerization of the cyano-stilbene moiety in cyano-CA-4 analogs (Penthala et al., 2013). To further check the position of the hydrogen atom in the triazole ring system in (I), an N-methylation reaction was carried out on (I) using CH3I, resulting in compound (II).To obtain detailed information on the structural conformations of (I) and (II) for analysis of structure–activity relationships (SAR), including the position of the hydrogen atom in the triazole ring system of (I) and the position of methylation on the triazole ring system in (II), we determined the X-ray crystal structures of (I) and (II); see Figs. 1 and 2, respectively.
Selected geometric parameters are given in Tables 1 and 2 for (I) and (II), respectively. The benzothiophene rings are almost planar with r.m.s deviations from the mean plane of 0.0205 (14) in (I) and 0.016 (2) Å in (II), with bond distances and angles comparable with those reported for other benzothiophene derivatives (Sonar et al., 2007) and triazole analogs (Madadi et al., 2014). The triazole rings make dihedral angles of 32.68 (5)° and 10.43 (8)°, respectively, in (I) and (II) with the mean plane of the benzothiophene ring systems. The trimethoxyphenyl rings make dihedral angles of 38.48 (4) in (I) and 60.43 (5)° in (II) with the benzothiophene ring systems. In both compounds (I) and (II), deviations from ideal geometry are observed in the bond angles C1—S1—C8, N2—N1—C9, N2—N3—C10, which are compressed, and C1—C9—C10, C9—C10—C11, C2—C3—C4, which are expanded (see Tables 1 and 2). After N-methylation, no significant difference is observed for the N1—N2—N3 bond angle [116.2 (1) and 115.9 (1)°, respectively, for (I) and (II)]. The
of (II) has a minor component of disorder that corresponds to a ~180° flip of the benzothiophene ring system [occupancy 6.37 (14)%].Hydrogen bonding and the mode of packing of (I) is illustrated in Fig. 3, and the mode of packing of (II) is illustrated in Fig. 4. In structure (I), the molecules are linked by intermolecular hydrogen bonds (N2—H2N···O2 and N2—H2N···O3), forming R21(5) ring motifs (Table 3), which propagate as chains along the [101] direction. Contacts between adjacent chains form two-dimensional pleated-sheet networks in the ac plane. No significant hydrogen-bonding interactions were found in structure (II).
A search of the 2014 release of the Cambridge Structural Database on unit-cell dimensions for (I) and (II) revealed four triazole structures (HOZZAY, UPEWAO, SAFZEG & VUSNEC), although none bore any particular relation to compounds (I) or (II). A search on the triazole ring fragment with either H or methyl attached to the middle N atom revealed 48 and 17 hits respectively, none of which contained either benzothiophene or trimethoxybenzene functional groups.
The title compounds were prepared according to a previously reported procedure (Penthala et al., 2014). Recrystallization from methanol afforded (I) and (II) as yellow and pale-yellow crystalline products, respectively, which were suitable for X-ray analysis. The crystals were placed directly into the cold stream of a liquid-nitrogen-based cryostat, according to published methods (Hope, 1994; Parkin & Hope, 1998).
Crystal data, data collection and structure
details are summarized in Table 4. H atoms were found in difference Fourier maps. Carbon-bound hydrogens were subsequently placed at idealized positions with constrained distances of 0.98 (RCH3) and 0.95 Å (Csp2H). Coordinates of the N-bound hydrogen were refined freely. Uiso(H) values were set to either 1.2Ueq or 1.5Ueq (RCH3) of the attached atom.Refinement progress was checked using PLATON (Spek, 2009) and by an R-tensor (Parkin, 2000). To ensure satisfactory
of disordered groups in the structure, a combination of constraints and restraints was employed. The constraints (SHELXL command EADP) were used to fix overlapping fragments. Restraints were used to maintain the integrity of ill-defined or disordered groups (SHELXL commands SAME and RIGU).In structure (II), there was a small amount of a second conformation for the benzothiophene ring systems, with major and minor component fractions of 93.63 (14) and 6.37 (14)%, respectively.
For both compounds, data collection: COLLECT (Nonius, 1998); cell
SCALEPACK (Otwinowski & Minor, 2006); data reduction: DENZO-SMN (Otwinowski & Minor, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008b). Program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008b) for (I); SHELXL2014 (Sheldrick, 2008b) for (II). For both compounds, molecular graphics: XP in SHELXTL (Sheldrick, 2008b). Software used to prepare material for publication: SHELXL2013 (Sheldrick, 2008b) and CIFFIX (Parkin, 2013) for (I); SHELXL2014 (Sheldrick, 2008b) and CIFFIX (Parkin, 2013) for (II).The molecular structure of (I), with displacement ellipsoids drawn at the 50% probability level. The molecular structure of (II), with displacement ellipsoids drawn at the 50% probability level. Hydrogen bonding in the of (I), viewed down the b axis. Dashed lines represent hydrogen bonds, which join molecules into chains along the [101] direction. Crystal packing of (II), as viewed down the b axis. |
C19H17N3O3S | F(000) = 768 |
Mr = 367.41 | Dx = 1.409 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
a = 11.8983 (2) Å | Cell parameters from 4236 reflections |
b = 8.1860 (1) Å | θ = 1.0–27.5° |
c = 18.4582 (3) Å | µ = 0.21 mm−1 |
β = 105.5046 (7)° | T = 90 K |
V = 1732.39 (5) Å3 | Plate, yellow |
Z = 4 | 0.30 × 0.30 × 0.05 mm |
Nonius KappaCCD diffractometer | 3984 independent reflections |
Radiation source: fine-focus sealed-tube | 3093 reflections with I > 2σ(I) |
Detector resolution: 9.1 pixels mm-1 | Rint = 0.045 |
ϕ and ω scans at fixed χ = 55° | θmax = 27.5°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2008a) | h = −15→15 |
Tmin = 0.816, Tmax = 0.966 | k = −10→10 |
28105 measured reflections | l = −23→22 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.044 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.124 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0707P)2 + 0.6092P] where P = (Fo2 + 2Fc2)/3 |
3984 reflections | (Δ/σ)max < 0.001 |
241 parameters | Δρmax = 0.55 e Å−3 |
0 restraints | Δρmin = −0.29 e Å−3 |
C19H17N3O3S | V = 1732.39 (5) Å3 |
Mr = 367.41 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 11.8983 (2) Å | µ = 0.21 mm−1 |
b = 8.1860 (1) Å | T = 90 K |
c = 18.4582 (3) Å | 0.30 × 0.30 × 0.05 mm |
β = 105.5046 (7)° |
Nonius KappaCCD diffractometer | 3984 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2008a) | 3093 reflections with I > 2σ(I) |
Tmin = 0.816, Tmax = 0.966 | Rint = 0.045 |
28105 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.124 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | Δρmax = 0.55 e Å−3 |
3984 reflections | Δρmin = −0.29 e Å−3 |
241 parameters |
Experimental. The crystal was mounted with polyisobutene oil on the tip of a fine glass fibre, fastened in a copper mounting pin with electrical solder. It was placed directly into the cold stream of a liquid nitrogen based cryostat, according to published methods (Hope, H. (1994). Prog. Inorg. Chem. 41, 1–19; Parkin, S. & Hope, H. (1998). J. Appl. Cryst. 31, 945–953.). Diffraction data were collected with the crystal at 90 K, which is standard practice in this laboratory for the majority of flash-cooled crystals. |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement progress was checked using PLATON (Spek, 2009) and by an R-tensor (Parkin, 2000). The final model was further checked with the IUCr utility checkCIF. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.39424 (4) | 0.67530 (6) | 0.05935 (2) | 0.02500 (14) | |
N1 | 0.13369 (12) | 0.64131 (18) | 0.05222 (8) | 0.0209 (3) | |
N2 | 0.03228 (12) | 0.67054 (18) | 0.06649 (8) | 0.0214 (3) | |
H2N | −0.0306 (18) | 0.686 (2) | 0.0298 (12) | 0.026* | |
N3 | 0.03376 (12) | 0.68041 (18) | 0.13868 (8) | 0.0201 (3) | |
O1 | 0.07856 (10) | 0.60706 (15) | 0.42702 (6) | 0.0223 (3) | |
O2 | 0.30089 (10) | 0.69738 (14) | 0.49128 (6) | 0.0196 (3) | |
O3 | 0.44759 (9) | 0.76268 (15) | 0.40977 (6) | 0.0208 (3) | |
C1 | 0.33215 (14) | 0.5986 (2) | 0.12815 (9) | 0.0186 (3) | |
C2 | 0.41132 (14) | 0.5191 (2) | 0.18353 (9) | 0.0195 (3) | |
H2 | 0.3920 | 0.4676 | 0.2247 | 0.023* | |
C3 | 0.52685 (14) | 0.5204 (2) | 0.17387 (9) | 0.0200 (4) | |
C4 | 0.63017 (15) | 0.4549 (2) | 0.22005 (10) | 0.0268 (4) | |
H4 | 0.6291 | 0.3961 | 0.2642 | 0.032* | |
C5 | 0.73349 (15) | 0.4767 (2) | 0.20067 (11) | 0.0307 (4) | |
H5 | 0.8037 | 0.4322 | 0.2317 | 0.037* | |
C6 | 0.73606 (16) | 0.5633 (3) | 0.13592 (12) | 0.0331 (5) | |
H6 | 0.8084 | 0.5787 | 0.1242 | 0.040* | |
C7 | 0.63591 (16) | 0.6268 (2) | 0.08883 (12) | 0.0299 (4) | |
H7 | 0.6380 | 0.6841 | 0.0445 | 0.036* | |
C8 | 0.53112 (14) | 0.6047 (2) | 0.10787 (10) | 0.0217 (4) | |
C9 | 0.20875 (14) | 0.6295 (2) | 0.12074 (9) | 0.0173 (3) | |
C10 | 0.14626 (13) | 0.6547 (2) | 0.17521 (9) | 0.0169 (3) | |
C11 | 0.18559 (14) | 0.6599 (2) | 0.25781 (9) | 0.0171 (3) | |
C12 | 0.10917 (14) | 0.6200 (2) | 0.30137 (9) | 0.0185 (3) | |
H12 | 0.0323 | 0.5837 | 0.2778 | 0.022* | |
C13 | 0.14657 (14) | 0.6340 (2) | 0.37917 (9) | 0.0181 (3) | |
C14 | 0.26154 (14) | 0.6801 (2) | 0.41410 (9) | 0.0171 (3) | |
C15 | 0.33703 (13) | 0.7182 (2) | 0.37040 (9) | 0.0176 (3) | |
C16 | 0.29866 (14) | 0.7127 (2) | 0.29248 (9) | 0.0172 (3) | |
H16 | 0.3492 | 0.7448 | 0.2629 | 0.021* | |
C17 | −0.04088 (14) | 0.5647 (3) | 0.39398 (10) | 0.0260 (4) | |
H17A | −0.0797 | 0.6537 | 0.3612 | 0.039* | |
H17B | −0.0800 | 0.5468 | 0.4338 | 0.039* | |
H17C | −0.0447 | 0.4646 | 0.3643 | 0.039* | |
C18 | 0.32569 (16) | 0.5438 (2) | 0.53021 (10) | 0.0259 (4) | |
H18A | 0.2566 | 0.4735 | 0.5159 | 0.039* | |
H18B | 0.3464 | 0.5630 | 0.5846 | 0.039* | |
H18C | 0.3909 | 0.4904 | 0.5167 | 0.039* | |
C19 | 0.53268 (14) | 0.7777 (2) | 0.36776 (9) | 0.0212 (4) | |
H19A | 0.5353 | 0.6761 | 0.3402 | 0.032* | |
H19B | 0.6095 | 0.7987 | 0.4023 | 0.032* | |
H19C | 0.5113 | 0.8685 | 0.3321 | 0.032* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0206 (2) | 0.0338 (3) | 0.0226 (2) | 0.00439 (18) | 0.00931 (17) | 0.00745 (18) |
N1 | 0.0158 (7) | 0.0285 (8) | 0.0174 (7) | −0.0002 (6) | 0.0024 (5) | 0.0010 (6) |
N2 | 0.0157 (7) | 0.0307 (8) | 0.0159 (7) | 0.0012 (6) | 0.0006 (6) | 0.0012 (6) |
N3 | 0.0156 (7) | 0.0280 (8) | 0.0155 (7) | −0.0002 (6) | 0.0018 (5) | 0.0006 (6) |
O1 | 0.0161 (6) | 0.0335 (7) | 0.0177 (6) | −0.0042 (5) | 0.0052 (5) | 0.0008 (5) |
O2 | 0.0195 (6) | 0.0246 (6) | 0.0131 (5) | −0.0010 (5) | 0.0018 (4) | 0.0004 (5) |
O3 | 0.0130 (5) | 0.0316 (7) | 0.0172 (6) | −0.0039 (5) | 0.0028 (4) | −0.0021 (5) |
C1 | 0.0164 (8) | 0.0221 (9) | 0.0172 (8) | −0.0025 (6) | 0.0043 (6) | −0.0024 (6) |
C2 | 0.0180 (8) | 0.0209 (9) | 0.0192 (8) | 0.0007 (7) | 0.0043 (6) | 0.0000 (6) |
C3 | 0.0174 (8) | 0.0200 (9) | 0.0228 (8) | −0.0011 (6) | 0.0054 (6) | −0.0037 (7) |
C4 | 0.0222 (9) | 0.0298 (10) | 0.0265 (9) | 0.0032 (7) | 0.0033 (7) | −0.0050 (8) |
C5 | 0.0172 (8) | 0.0348 (11) | 0.0370 (10) | 0.0046 (8) | 0.0021 (7) | −0.0094 (9) |
C6 | 0.0187 (9) | 0.0350 (11) | 0.0487 (12) | −0.0004 (8) | 0.0143 (8) | −0.0058 (9) |
C7 | 0.0246 (9) | 0.0310 (10) | 0.0389 (11) | −0.0005 (8) | 0.0169 (8) | 0.0014 (8) |
C8 | 0.0189 (8) | 0.0234 (9) | 0.0239 (9) | 0.0007 (7) | 0.0076 (7) | 0.0002 (7) |
C9 | 0.0157 (8) | 0.0197 (8) | 0.0156 (8) | −0.0001 (6) | 0.0025 (6) | 0.0009 (6) |
C10 | 0.0134 (7) | 0.0201 (8) | 0.0164 (8) | −0.0004 (6) | 0.0025 (6) | 0.0011 (6) |
C11 | 0.0160 (8) | 0.0181 (8) | 0.0165 (8) | 0.0012 (6) | 0.0030 (6) | −0.0001 (6) |
C12 | 0.0155 (8) | 0.0211 (9) | 0.0174 (8) | −0.0014 (6) | 0.0016 (6) | 0.0001 (6) |
C13 | 0.0168 (8) | 0.0211 (9) | 0.0170 (8) | −0.0007 (6) | 0.0055 (6) | 0.0014 (6) |
C14 | 0.0176 (8) | 0.0197 (8) | 0.0132 (7) | 0.0008 (6) | 0.0028 (6) | 0.0011 (6) |
C15 | 0.0129 (7) | 0.0196 (8) | 0.0183 (8) | −0.0004 (6) | 0.0007 (6) | −0.0021 (6) |
C16 | 0.0159 (8) | 0.0196 (8) | 0.0160 (8) | 0.0006 (6) | 0.0037 (6) | 0.0004 (6) |
C17 | 0.0139 (8) | 0.0400 (11) | 0.0235 (9) | −0.0043 (7) | 0.0041 (7) | 0.0044 (8) |
C18 | 0.0266 (9) | 0.0292 (10) | 0.0197 (8) | −0.0005 (7) | 0.0024 (7) | 0.0069 (7) |
C19 | 0.0143 (8) | 0.0301 (9) | 0.0193 (8) | −0.0014 (7) | 0.0047 (6) | 0.0006 (7) |
S1—C8 | 1.7345 (17) | C6—C7 | 1.375 (3) |
S1—C1 | 1.7474 (17) | C6—H6 | 0.9500 |
N1—N2 | 1.324 (2) | C7—C8 | 1.395 (2) |
N1—C9 | 1.343 (2) | C7—H7 | 0.9500 |
N2—N3 | 1.330 (2) | C9—C10 | 1.416 (2) |
N2—H2N | 0.87 (2) | C10—C11 | 1.471 (2) |
N3—C10 | 1.345 (2) | C11—C16 | 1.395 (2) |
O1—C13 | 1.3660 (19) | C11—C12 | 1.404 (2) |
O1—C17 | 1.4313 (19) | C12—C13 | 1.390 (2) |
O2—C14 | 1.3829 (19) | C12—H12 | 0.9500 |
O2—C18 | 1.439 (2) | C13—C14 | 1.399 (2) |
O3—C15 | 1.3712 (19) | C14—C15 | 1.394 (2) |
O3—C19 | 1.4356 (19) | C15—C16 | 1.389 (2) |
C1—C2 | 1.357 (2) | C16—H16 | 0.9500 |
C1—C9 | 1.460 (2) | C17—H17A | 0.9800 |
C2—C3 | 1.433 (2) | C17—H17B | 0.9800 |
C2—H2 | 0.9500 | C17—H17C | 0.9800 |
C3—C4 | 1.402 (2) | C18—H18A | 0.9800 |
C3—C8 | 1.413 (2) | C18—H18B | 0.9800 |
C4—C5 | 1.381 (3) | C18—H18C | 0.9800 |
C4—H4 | 0.9500 | C19—H19A | 0.9800 |
C5—C6 | 1.397 (3) | C19—H19B | 0.9800 |
C5—H5 | 0.9500 | C19—H19C | 0.9800 |
C8—S1—C1 | 91.50 (8) | C9—C10—C11 | 131.16 (14) |
N2—N1—C9 | 103.74 (13) | C16—C11—C12 | 120.15 (15) |
N1—N2—N3 | 116.21 (14) | C16—C11—C10 | 119.01 (14) |
N1—N2—H2N | 120.6 (13) | C12—C11—C10 | 120.77 (14) |
N3—N2—H2N | 123.2 (13) | C13—C12—C11 | 119.68 (15) |
N2—N3—C10 | 103.74 (13) | C13—C12—H12 | 120.2 |
C13—O1—C17 | 117.13 (13) | C11—C12—H12 | 120.2 |
C14—O2—C18 | 113.13 (13) | O1—C13—C12 | 124.98 (14) |
C15—O3—C19 | 116.85 (12) | O1—C13—C14 | 114.89 (14) |
C2—C1—C9 | 129.19 (15) | C12—C13—C14 | 120.12 (15) |
C2—C1—S1 | 112.12 (12) | O2—C14—C15 | 118.70 (14) |
C9—C1—S1 | 118.67 (12) | O2—C14—C13 | 121.49 (14) |
C1—C2—C3 | 113.49 (15) | C15—C14—C13 | 119.72 (14) |
C1—C2—H2 | 123.3 | O3—C15—C16 | 124.11 (15) |
C3—C2—H2 | 123.3 | O3—C15—C14 | 115.35 (14) |
C4—C3—C8 | 118.91 (16) | C16—C15—C14 | 120.54 (14) |
C4—C3—C2 | 129.50 (16) | C15—C16—C11 | 119.66 (15) |
C8—C3—C2 | 111.58 (15) | C15—C16—H16 | 120.2 |
C5—C4—C3 | 119.33 (18) | C11—C16—H16 | 120.2 |
C5—C4—H4 | 120.3 | O1—C17—H17A | 109.5 |
C3—C4—H4 | 120.3 | O1—C17—H17B | 109.5 |
C4—C5—C6 | 120.79 (17) | H17A—C17—H17B | 109.5 |
C4—C5—H5 | 119.6 | O1—C17—H17C | 109.5 |
C6—C5—H5 | 119.6 | H17A—C17—H17C | 109.5 |
C7—C6—C5 | 121.26 (17) | H17B—C17—H17C | 109.5 |
C7—C6—H6 | 119.4 | O2—C18—H18A | 109.5 |
C5—C6—H6 | 119.4 | O2—C18—H18B | 109.5 |
C6—C7—C8 | 118.28 (18) | H18A—C18—H18B | 109.5 |
C6—C7—H7 | 120.9 | O2—C18—H18C | 109.5 |
C8—C7—H7 | 120.9 | H18A—C18—H18C | 109.5 |
C7—C8—C3 | 121.41 (16) | H18B—C18—H18C | 109.5 |
C7—C8—S1 | 127.30 (15) | O3—C19—H19A | 109.5 |
C3—C8—S1 | 111.27 (12) | O3—C19—H19B | 109.5 |
N1—C9—C10 | 108.37 (14) | H19A—C19—H19B | 109.5 |
N1—C9—C1 | 119.98 (15) | O3—C19—H19C | 109.5 |
C10—C9—C1 | 131.64 (14) | H19A—C19—H19C | 109.5 |
N3—C10—C9 | 107.94 (14) | H19B—C19—H19C | 109.5 |
N3—C10—C11 | 120.88 (14) | ||
C9—N1—N2—N3 | 0.50 (19) | C1—C9—C10—N3 | 179.11 (17) |
N1—N2—N3—C10 | −0.27 (19) | N1—C9—C10—C11 | −177.91 (16) |
C8—S1—C1—C2 | −1.94 (14) | C1—C9—C10—C11 | 0.8 (3) |
C8—S1—C1—C9 | 176.59 (14) | N3—C10—C11—C16 | −148.68 (16) |
C9—C1—C2—C3 | −176.73 (16) | C9—C10—C11—C16 | 29.4 (3) |
S1—C1—C2—C3 | 1.60 (19) | N3—C10—C11—C12 | 28.3 (2) |
C1—C2—C3—C4 | 178.36 (18) | C9—C10—C11—C12 | −153.60 (18) |
C1—C2—C3—C8 | −0.3 (2) | C16—C11—C12—C13 | 0.3 (2) |
C8—C3—C4—C5 | 1.1 (3) | C10—C11—C12—C13 | −176.69 (15) |
C2—C3—C4—C5 | −177.44 (17) | C17—O1—C13—C12 | −1.4 (2) |
C3—C4—C5—C6 | 0.2 (3) | C17—O1—C13—C14 | 178.07 (15) |
C4—C5—C6—C7 | −1.2 (3) | C11—C12—C13—O1 | 176.42 (15) |
C5—C6—C7—C8 | 1.0 (3) | C11—C12—C13—C14 | −3.1 (2) |
C6—C7—C8—C3 | 0.3 (3) | C18—O2—C14—C15 | −105.70 (17) |
C6—C7—C8—S1 | 178.72 (15) | C18—O2—C14—C13 | 77.81 (19) |
C4—C3—C8—C7 | −1.4 (3) | O1—C13—C14—O2 | −0.5 (2) |
C2—C3—C8—C7 | 177.41 (16) | C12—C13—C14—O2 | 179.04 (15) |
C4—C3—C8—S1 | −179.98 (13) | O1—C13—C14—C15 | −176.96 (14) |
C2—C3—C8—S1 | −1.20 (19) | C12—C13—C14—C15 | 2.6 (2) |
C1—S1—C8—C7 | −176.74 (18) | C19—O3—C15—C16 | −10.7 (2) |
C1—S1—C8—C3 | 1.76 (14) | C19—O3—C15—C14 | 170.44 (14) |
N2—N1—C9—C10 | −0.50 (18) | O2—C14—C15—O3 | 3.1 (2) |
N2—N1—C9—C1 | −179.41 (15) | C13—C14—C15—O3 | 179.67 (15) |
C2—C1—C9—N1 | −150.00 (18) | O2—C14—C15—C16 | −175.80 (15) |
S1—C1—C9—N1 | 31.8 (2) | C13—C14—C15—C16 | 0.8 (2) |
C2—C1—C9—C10 | 31.4 (3) | O3—C15—C16—C11 | 177.62 (15) |
S1—C1—C9—C10 | −146.86 (16) | C14—C15—C16—C11 | −3.6 (2) |
N2—N3—C10—C9 | −0.08 (18) | C12—C11—C16—C15 | 3.1 (2) |
N2—N3—C10—C11 | 178.42 (15) | C10—C11—C16—C15 | −179.95 (15) |
N1—C9—C10—N3 | 0.37 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2N···O2i | 0.87 (2) | 2.16 (2) | 2.9381 (18) | 147.6 (18) |
N2—H2N···O3i | 0.87 (2) | 2.20 (2) | 2.8503 (18) | 130.8 (17) |
Symmetry code: (i) x−1/2, −y+3/2, z−1/2. |
C20H19N3O3S | Z = 2 |
Mr = 381.44 | F(000) = 400 |
Triclinic, P1 | Dx = 1.421 Mg m−3 |
a = 8.8579 (1) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 11.0761 (1) Å | Cell parameters from 4076 reflections |
c = 11.2626 (1) Å | θ = 1.0–27.5° |
α = 106.859 (4)° | µ = 0.21 mm−1 |
β = 111.668 (5)° | T = 90 K |
γ = 105.498 (4)° | Cut block, pale yellow |
V = 891.51 (4) Å3 | 0.22 × 0.20 × 0.15 mm |
Nonius KappaCCD diffractometer | 4097 independent reflections |
Radiation source: fine-focus sealed-tube | 3572 reflections with I > 2σ(I) |
Detector resolution: 9.1 pixels mm-1 | Rint = 0.045 |
ϕ and ω scans at fixed χ = 55° | θmax = 27.6°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2008a) | h = −11→11 |
Tmin = 0.858, Tmax = 0.962 | k = −14→14 |
36591 measured reflections | l = −14→14 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.037 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.096 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.0472P)2 + 0.4023P] where P = (Fo2 + 2Fc2)/3 |
4097 reflections | (Δ/σ)max = 0.001 |
276 parameters | Δρmax = 0.31 e Å−3 |
161 restraints | Δρmin = −0.28 e Å−3 |
C20H19N3O3S | γ = 105.498 (4)° |
Mr = 381.44 | V = 891.51 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.8579 (1) Å | Mo Kα radiation |
b = 11.0761 (1) Å | µ = 0.21 mm−1 |
c = 11.2626 (1) Å | T = 90 K |
α = 106.859 (4)° | 0.22 × 0.20 × 0.15 mm |
β = 111.668 (5)° |
Nonius KappaCCD diffractometer | 4097 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2008a) | 3572 reflections with I > 2σ(I) |
Tmin = 0.858, Tmax = 0.962 | Rint = 0.045 |
36591 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 161 restraints |
wR(F2) = 0.096 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.31 e Å−3 |
4097 reflections | Δρmin = −0.28 e Å−3 |
276 parameters |
Experimental. The crystal was mounted with polyisobutene oil on the tip of a fine glass fibre, which was fastened in a copper mounting pin with electrical solder. It was placed directly into the cold gas stream of a liquid nitrogen based cryostat, according to published methods (Hope, 1994; Parkin & Hope, 1998). Diffraction data were collected with the crystal at 90 K, which is standard practice in this laboratory for the majority of flash-cooled crystals. |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement progress was checked using PLATON (Spek, 2009) and by an R-tensor (Parkin, 2000). The final model was further checked with the IUCr utility checkCIF. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
N1 | 0.41837 (14) | 0.62237 (11) | 0.61716 (11) | 0.0160 (2) | |
N2 | 0.56418 (15) | 0.73837 (11) | 0.71234 (11) | 0.0158 (2) | |
N3 | 0.65185 (15) | 0.80574 (11) | 0.66113 (11) | 0.0163 (2) | |
O1 | 0.75768 (14) | 1.08896 (10) | 0.37490 (10) | 0.0234 (2) | |
O2 | 0.77188 (12) | 0.90655 (10) | 0.16639 (9) | 0.0178 (2) | |
O3 | 0.72458 (13) | 0.64975 (10) | 0.14267 (10) | 0.0197 (2) | |
C1 | 0.2506 (5) | 0.5036 (4) | 0.36036 (19) | 0.0145 (4) | 0.9363 (14) |
S1 | 0.08551 (5) | 0.39081 (4) | 0.37446 (4) | 0.01741 (12) | 0.9363 (14) |
C2 | 0.2034 (2) | 0.48053 (18) | 0.22483 (17) | 0.0176 (3) | 0.9363 (14) |
H2 | 0.2776 | 0.5336 | 0.1986 | 0.021* | 0.9363 (14) |
C3 | 0.0313 (3) | 0.3687 (3) | 0.1242 (2) | 0.0164 (4) | 0.9363 (14) |
C4 | −0.0638 (3) | 0.31782 (16) | −0.0245 (2) | 0.0203 (4) | 0.9363 (14) |
H4 | −0.0117 | 0.3565 | −0.0725 | 0.024* | 0.9363 (14) |
C5 | −0.2341 (3) | 0.21078 (18) | −0.09952 (19) | 0.0210 (4) | 0.9363 (14) |
H5 | −0.2990 | 0.1766 | −0.1996 | 0.025* | 0.9363 (14) |
C6 | −0.3125 (2) | 0.1519 (2) | −0.03024 (16) | 0.0195 (4) | 0.9363 (14) |
H6 | −0.4295 | 0.0784 | −0.0841 | 0.023* | 0.9363 (14) |
C7 | −0.2218 (2) | 0.19944 (19) | 0.11543 (18) | 0.0186 (4) | 0.9363 (14) |
H7 | −0.2742 | 0.1591 | 0.1624 | 0.022* | 0.9363 (14) |
C8 | −0.0508 (2) | 0.3086 (2) | 0.19147 (18) | 0.0161 (3) | 0.9363 (14) |
C1' | 0.269 (8) | 0.522 (7) | 0.368 (2) | 0.0145 (4) | 0.0637 (14) |
S1' | 0.2341 (9) | 0.5088 (7) | 0.2013 (7) | 0.0176 (3) | 0.0637 (14) |
C2' | 0.134 (3) | 0.418 (2) | 0.3485 (19) | 0.01741 (12) | 0.0637 (14) |
H2' | 0.1347 | 0.3980 | 0.4251 | 0.021* | 0.0637 (14) |
C3' | −0.013 (4) | 0.335 (4) | 0.207 (2) | 0.0161 (3) | 0.0637 (14) |
C4' | −0.173 (3) | 0.221 (3) | 0.150 (3) | 0.0186 (4) | 0.0637 (14) |
H4' | −0.1949 | 0.1828 | 0.2106 | 0.022* | 0.0637 (14) |
C5' | −0.297 (4) | 0.162 (3) | 0.013 (3) | 0.0195 (4) | 0.0637 (14) |
H5' | −0.4184 | 0.1070 | −0.0167 | 0.023* | 0.0637 (14) |
C6' | −0.248 (4) | 0.183 (3) | −0.086 (3) | 0.0210 (4) | 0.0637 (14) |
H6' | −0.3283 | 0.1303 | −0.1851 | 0.025* | 0.0637 (14) |
C7' | −0.079 (4) | 0.284 (3) | −0.036 (3) | 0.0203 (4) | 0.0637 (14) |
H7' | −0.0314 | 0.2892 | −0.0985 | 0.024* | 0.0637 (14) |
C8' | 0.020 (4) | 0.377 (5) | 0.108 (2) | 0.0164 (4) | 0.0637 (14) |
C9 | 0.40890 (17) | 0.61277 (13) | 0.49233 (13) | 0.0147 (2) | |
C10 | 0.55623 (17) | 0.72729 (13) | 0.52005 (13) | 0.0146 (2) | |
C11 | 0.61431 (17) | 0.77268 (13) | 0.42743 (13) | 0.0152 (3) | |
C12 | 0.65731 (17) | 0.91063 (13) | 0.44855 (13) | 0.0166 (3) | |
H12 | 0.6472 | 0.9730 | 0.5204 | 0.020* | |
C13 | 0.71519 (17) | 0.95607 (13) | 0.36342 (14) | 0.0168 (3) | |
C14 | 0.72907 (16) | 0.86471 (13) | 0.25757 (13) | 0.0152 (3) | |
C15 | 0.69315 (17) | 0.72810 (13) | 0.24151 (13) | 0.0157 (3) | |
C16 | 0.63395 (17) | 0.68128 (13) | 0.32534 (13) | 0.0158 (3) | |
H16 | 0.6073 | 0.5881 | 0.3131 | 0.019* | |
C17 | 0.8251 (2) | 1.19553 (14) | 0.51199 (15) | 0.0231 (3) | |
H17A | 0.7287 | 1.1871 | 0.5366 | 0.035* | |
H17B | 0.8707 | 1.2866 | 0.5122 | 0.035* | |
H17C | 0.9222 | 1.1864 | 0.5817 | 0.035* | |
C18 | 0.96108 (18) | 0.98269 (14) | 0.22249 (14) | 0.0202 (3) | |
H18A | 1.0093 | 1.0624 | 0.3134 | 0.030* | |
H18B | 0.9813 | 1.0158 | 0.1555 | 0.030* | |
H18C | 1.0214 | 0.9217 | 0.2368 | 0.030* | |
C19 | 0.7008 (2) | 0.51278 (14) | 0.13104 (16) | 0.0231 (3) | |
H19A | 0.7781 | 0.5191 | 0.2233 | 0.035* | |
H19B | 0.7324 | 0.4680 | 0.0608 | 0.035* | |
H19C | 0.5754 | 0.4577 | 0.1010 | 0.035* | |
C20 | 0.63205 (18) | 0.78558 (14) | 0.86407 (13) | 0.0185 (3) | |
H20A | 0.7016 | 0.7356 | 0.8977 | 0.028* | |
H20B | 0.5314 | 0.7673 | 0.8838 | 0.028* | |
H20C | 0.7089 | 0.8856 | 0.9131 | 0.028* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0151 (5) | 0.0152 (5) | 0.0154 (5) | 0.0047 (4) | 0.0069 (4) | 0.0059 (4) |
N2 | 0.0165 (5) | 0.0154 (5) | 0.0138 (5) | 0.0042 (4) | 0.0078 (4) | 0.0059 (4) |
N3 | 0.0167 (5) | 0.0171 (5) | 0.0156 (5) | 0.0054 (4) | 0.0087 (4) | 0.0080 (4) |
O1 | 0.0339 (6) | 0.0148 (5) | 0.0214 (5) | 0.0074 (4) | 0.0139 (4) | 0.0095 (4) |
O2 | 0.0152 (5) | 0.0207 (5) | 0.0139 (4) | 0.0021 (4) | 0.0061 (4) | 0.0093 (4) |
O3 | 0.0235 (5) | 0.0176 (5) | 0.0206 (5) | 0.0070 (4) | 0.0147 (4) | 0.0077 (4) |
C1 | 0.0134 (11) | 0.0112 (15) | 0.0170 (6) | 0.0034 (6) | 0.0072 (6) | 0.0057 (6) |
S1 | 0.01419 (19) | 0.01807 (19) | 0.01687 (18) | 0.00243 (14) | 0.00642 (14) | 0.00913 (14) |
C2 | 0.0158 (7) | 0.0180 (8) | 0.0178 (7) | 0.0032 (6) | 0.0091 (6) | 0.0086 (6) |
C3 | 0.0152 (7) | 0.0161 (7) | 0.0178 (7) | 0.0070 (6) | 0.0078 (6) | 0.0069 (6) |
C4 | 0.0197 (8) | 0.0183 (10) | 0.0186 (7) | 0.0045 (8) | 0.0098 (6) | 0.0051 (7) |
C5 | 0.0192 (7) | 0.0194 (9) | 0.0169 (7) | 0.0056 (7) | 0.0054 (6) | 0.0051 (6) |
C6 | 0.0139 (7) | 0.0159 (7) | 0.0197 (9) | 0.0032 (5) | 0.0030 (7) | 0.0059 (8) |
C7 | 0.0123 (8) | 0.0167 (8) | 0.0219 (10) | 0.0039 (7) | 0.0043 (7) | 0.0096 (8) |
C8 | 0.0138 (10) | 0.0135 (11) | 0.0179 (7) | 0.0048 (7) | 0.0057 (6) | 0.0062 (7) |
C1' | 0.0134 (11) | 0.0112 (15) | 0.0170 (6) | 0.0034 (6) | 0.0072 (6) | 0.0057 (6) |
S1' | 0.0158 (7) | 0.0180 (8) | 0.0178 (7) | 0.0032 (6) | 0.0091 (6) | 0.0086 (6) |
C2' | 0.01419 (19) | 0.01807 (19) | 0.01687 (18) | 0.00243 (14) | 0.00642 (14) | 0.00913 (14) |
C3' | 0.0138 (10) | 0.0135 (11) | 0.0179 (7) | 0.0048 (7) | 0.0057 (6) | 0.0062 (7) |
C4' | 0.0123 (8) | 0.0167 (8) | 0.0219 (10) | 0.0039 (7) | 0.0043 (7) | 0.0096 (8) |
C5' | 0.0139 (7) | 0.0159 (7) | 0.0197 (9) | 0.0032 (5) | 0.0030 (7) | 0.0059 (8) |
C6' | 0.0192 (7) | 0.0194 (9) | 0.0169 (7) | 0.0056 (7) | 0.0054 (6) | 0.0051 (6) |
C7' | 0.0197 (8) | 0.0183 (10) | 0.0186 (7) | 0.0045 (8) | 0.0098 (6) | 0.0051 (7) |
C8' | 0.0152 (7) | 0.0161 (7) | 0.0178 (7) | 0.0070 (6) | 0.0078 (6) | 0.0069 (6) |
C9 | 0.0155 (6) | 0.0149 (6) | 0.0143 (6) | 0.0065 (5) | 0.0072 (5) | 0.0073 (5) |
C10 | 0.0139 (6) | 0.0148 (6) | 0.0145 (6) | 0.0059 (5) | 0.0067 (5) | 0.0062 (5) |
C11 | 0.0129 (6) | 0.0168 (6) | 0.0139 (6) | 0.0042 (5) | 0.0055 (5) | 0.0074 (5) |
C12 | 0.0168 (6) | 0.0161 (6) | 0.0143 (6) | 0.0053 (5) | 0.0070 (5) | 0.0057 (5) |
C13 | 0.0161 (6) | 0.0145 (6) | 0.0161 (6) | 0.0038 (5) | 0.0055 (5) | 0.0075 (5) |
C14 | 0.0122 (6) | 0.0179 (6) | 0.0123 (6) | 0.0027 (5) | 0.0045 (5) | 0.0076 (5) |
C15 | 0.0126 (6) | 0.0171 (6) | 0.0129 (6) | 0.0039 (5) | 0.0049 (5) | 0.0048 (5) |
C16 | 0.0144 (6) | 0.0149 (6) | 0.0162 (6) | 0.0040 (5) | 0.0068 (5) | 0.0070 (5) |
C17 | 0.0271 (7) | 0.0144 (6) | 0.0252 (7) | 0.0079 (6) | 0.0121 (6) | 0.0066 (6) |
C18 | 0.0161 (6) | 0.0214 (7) | 0.0201 (7) | 0.0034 (5) | 0.0086 (5) | 0.0094 (6) |
C19 | 0.0295 (8) | 0.0184 (7) | 0.0257 (7) | 0.0106 (6) | 0.0178 (6) | 0.0085 (6) |
C20 | 0.0225 (7) | 0.0193 (6) | 0.0126 (6) | 0.0070 (5) | 0.0089 (5) | 0.0063 (5) |
N1—N2 | 1.3266 (15) | C3'—C4' | 1.383 (17) |
N1—C9 | 1.3477 (16) | C3'—C8' | 1.413 (17) |
N2—N3 | 1.3279 (15) | C4'—C5' | 1.346 (17) |
N2—C20 | 1.4527 (16) | C4'—H4' | 0.9500 |
N3—C10 | 1.3450 (16) | C5'—C6' | 1.393 (18) |
O1—C13 | 1.3720 (15) | C5'—H5' | 0.9500 |
O1—C17 | 1.4210 (17) | C6'—C7' | 1.385 (18) |
O2—C14 | 1.3721 (14) | C6'—H6' | 0.9500 |
O2—C18 | 1.4398 (16) | C7'—C8' | 1.405 (18) |
O3—C15 | 1.3666 (15) | C7'—H7' | 0.9500 |
O3—C19 | 1.4340 (16) | C9—C10 | 1.4122 (17) |
C1—C2 | 1.347 (3) | C10—C11 | 1.4723 (17) |
C1—C9 | 1.466 (2) | C11—C16 | 1.3943 (18) |
C1—S1 | 1.742 (2) | C11—C12 | 1.3956 (18) |
S1—C8 | 1.7380 (17) | C12—C13 | 1.3930 (18) |
C2—C3 | 1.429 (2) | C12—H12 | 0.9500 |
C2—H2 | 0.9500 | C13—C14 | 1.3911 (18) |
C3—C8 | 1.409 (2) | C14—C15 | 1.4018 (18) |
C3—C4 | 1.410 (2) | C15—C16 | 1.3926 (17) |
C4—C5 | 1.384 (2) | C16—H16 | 0.9500 |
C4—H4 | 0.9500 | C17—H17A | 0.9800 |
C5—C6 | 1.404 (2) | C17—H17B | 0.9800 |
C5—H5 | 0.9500 | C17—H17C | 0.9800 |
C6—C7 | 1.383 (2) | C18—H18A | 0.9800 |
C6—H6 | 0.9500 | C18—H18B | 0.9800 |
C7—C8 | 1.397 (2) | C18—H18C | 0.9800 |
C7—H7 | 0.9500 | C19—H19A | 0.9800 |
C1'—C2' | 1.318 (19) | C19—H19B | 0.9800 |
C1'—C9 | 1.32 (2) | C19—H19C | 0.9800 |
C1'—S1' | 1.74 (2) | C20—H20A | 0.9800 |
S1'—C8' | 1.731 (18) | C20—H20B | 0.9800 |
C2'—C3' | 1.439 (17) | C20—H20C | 0.9800 |
C2'—H2' | 0.9500 | ||
N2—N1—C9 | 103.78 (10) | C8'—C7'—H7' | 120.8 |
N1—N2—N3 | 115.92 (10) | C7'—C8'—C3' | 119 (2) |
N1—N2—C20 | 122.69 (11) | C7'—C8'—S1' | 129 (2) |
N3—N2—C20 | 121.27 (11) | C3'—C8'—S1' | 106.9 (14) |
N2—N3—C10 | 104.04 (10) | C1'—C9—N1 | 123.7 (13) |
C13—O1—C17 | 116.24 (10) | C1'—C9—C10 | 127.3 (11) |
C14—O2—C18 | 113.82 (10) | N1—C9—C10 | 108.26 (11) |
C15—O3—C19 | 116.41 (10) | N1—C9—C1 | 118.94 (13) |
C2—C1—C9 | 129.94 (17) | C10—C9—C1 | 132.41 (13) |
C2—C1—S1 | 112.33 (14) | N3—C10—C9 | 108.00 (11) |
C9—C1—S1 | 117.55 (13) | N3—C10—C11 | 119.08 (11) |
C8—S1—C1 | 91.33 (8) | C9—C10—C11 | 132.90 (12) |
C1—C2—C3 | 113.73 (19) | C16—C11—C12 | 120.79 (11) |
C1—C2—H2 | 123.1 | C16—C11—C10 | 120.52 (11) |
C3—C2—H2 | 123.1 | C12—C11—C10 | 118.61 (11) |
C8—C3—C4 | 118.66 (16) | C13—C12—C11 | 119.45 (12) |
C8—C3—C2 | 111.50 (15) | C13—C12—H12 | 120.3 |
C4—C3—C2 | 129.79 (17) | C11—C12—H12 | 120.3 |
C5—C4—C3 | 119.15 (16) | O1—C13—C14 | 116.02 (11) |
C5—C4—H4 | 120.4 | O1—C13—C12 | 123.56 (12) |
C3—C4—H4 | 120.4 | C14—C13—C12 | 120.40 (12) |
C4—C5—C6 | 121.14 (16) | O2—C14—C13 | 120.25 (11) |
C4—C5—H5 | 119.4 | O2—C14—C15 | 120.12 (11) |
C6—C5—H5 | 119.4 | C13—C14—C15 | 119.60 (11) |
C7—C6—C5 | 120.88 (16) | O3—C15—C16 | 124.29 (12) |
C7—C6—H6 | 119.6 | O3—C15—C14 | 115.29 (11) |
C5—C6—H6 | 119.6 | C16—C15—C14 | 120.40 (12) |
C6—C7—C8 | 118.04 (16) | C15—C16—C11 | 119.24 (12) |
C6—C7—H7 | 121.0 | C15—C16—H16 | 120.4 |
C8—C7—H7 | 121.0 | C11—C16—H16 | 120.4 |
C7—C8—C3 | 122.13 (15) | O1—C17—H17A | 109.5 |
C7—C8—S1 | 126.75 (13) | O1—C17—H17B | 109.5 |
C3—C8—S1 | 111.11 (11) | H17A—C17—H17B | 109.5 |
C2'—C1'—C9 | 124.6 (18) | O1—C17—H17C | 109.5 |
C2'—C1'—S1' | 107.3 (15) | H17A—C17—H17C | 109.5 |
C9—C1'—S1' | 128.0 (18) | H17B—C17—H17C | 109.5 |
C8'—S1'—C1' | 95.8 (12) | O2—C18—H18A | 109.5 |
C1'—C2'—C3' | 117.3 (18) | O2—C18—H18B | 109.5 |
C1'—C2'—H2' | 121.4 | H18A—C18—H18B | 109.5 |
C3'—C2'—H2' | 121.4 | O2—C18—H18C | 109.5 |
C4'—C3'—C8' | 115.8 (17) | H18A—C18—H18C | 109.5 |
C4'—C3'—C2' | 132 (2) | H18B—C18—H18C | 109.5 |
C8'—C3'—C2' | 111.8 (16) | O3—C19—H19A | 109.5 |
C5'—C4'—C3' | 122 (2) | O3—C19—H19B | 109.5 |
C5'—C4'—H4' | 118.9 | H19A—C19—H19B | 109.5 |
C3'—C4'—H4' | 118.9 | O3—C19—H19C | 109.5 |
C4'—C5'—C6' | 120 (2) | H19A—C19—H19C | 109.5 |
C4'—C5'—H5' | 120.2 | H19B—C19—H19C | 109.5 |
C6'—C5'—H5' | 120.2 | N2—C20—H20A | 109.5 |
C7'—C6'—C5' | 118 (2) | N2—C20—H20B | 109.5 |
C7'—C6'—H6' | 121.0 | H20A—C20—H20B | 109.5 |
C5'—C6'—H6' | 121.0 | N2—C20—H20C | 109.5 |
C6'—C7'—C8' | 118 (2) | H20A—C20—H20C | 109.5 |
C6'—C7'—H7' | 120.8 | H20B—C20—H20C | 109.5 |
C9—N1—N2—N3 | −0.21 (14) | S1'—C1'—C9—C10 | 6 (12) |
C9—N1—N2—C20 | −176.39 (11) | S1'—C1'—C9—C1 | −157 (59) |
N1—N2—N3—C10 | −0.26 (14) | N2—N1—C9—C1' | −170 (6) |
C20—N2—N3—C10 | 175.99 (11) | N2—N1—C9—C10 | 0.57 (13) |
C2—C1—S1—C8 | 0.6 (4) | N2—N1—C9—C1 | −173.1 (3) |
C9—C1—S1—C8 | 176.2 (4) | S1—C1—C9—C1' | −154 (51) |
C9—C1—C2—C3 | −175.7 (5) | C2—C1—C9—N1 | 173.7 (5) |
S1—C1—C2—C3 | −0.7 (5) | S1—C1—C9—N1 | −1.1 (5) |
C1—C2—C3—C8 | 0.5 (4) | C2—C1—C9—C10 | 1.8 (8) |
C1—C2—C3—C4 | 177.8 (4) | S1—C1—C9—C10 | −172.95 (18) |
C8—C3—C4—C5 | 0.0 (4) | N2—N3—C10—C9 | 0.60 (13) |
C2—C3—C4—C5 | −177.2 (3) | N2—N3—C10—C11 | 179.11 (11) |
C3—C4—C5—C6 | −0.4 (3) | C1'—C9—C10—N3 | 170 (6) |
C4—C5—C6—C7 | 0.1 (3) | N1—C9—C10—N3 | −0.76 (14) |
C5—C6—C7—C8 | 0.6 (3) | C1—C9—C10—N3 | 171.7 (4) |
C6—C7—C8—C3 | −1.1 (4) | C1'—C9—C10—C11 | −9 (6) |
C6—C7—C8—S1 | 177.16 (19) | N1—C9—C10—C11 | −178.99 (13) |
C4—C3—C8—C7 | 0.8 (4) | C1—C9—C10—C11 | −6.5 (4) |
C2—C3—C8—C7 | 178.4 (2) | N3—C10—C11—C16 | 129.29 (13) |
C4—C3—C8—S1 | −177.7 (2) | C9—C10—C11—C16 | −52.6 (2) |
C2—C3—C8—S1 | −0.1 (3) | N3—C10—C11—C12 | −47.72 (17) |
C1—S1—C8—C7 | −178.7 (3) | C9—C10—C11—C12 | 130.36 (15) |
C1—S1—C8—C3 | −0.3 (3) | C16—C11—C12—C13 | 2.02 (19) |
C2'—C1'—S1'—C8' | 9 (7) | C10—C11—C12—C13 | 179.01 (12) |
C9—C1'—S1'—C8' | −176 (9) | C17—O1—C13—C14 | −151.61 (12) |
C9—C1'—C2'—C3' | 175 (7) | C17—O1—C13—C12 | 29.78 (18) |
S1'—C1'—C2'—C3' | −8 (8) | C11—C12—C13—O1 | 178.95 (12) |
C1'—C2'—C3'—C4' | −180 (7) | C11—C12—C13—C14 | 0.40 (19) |
C1'—C2'—C3'—C8' | 4 (8) | C18—O2—C14—C13 | 82.87 (15) |
C8'—C3'—C4'—C5' | −7 (7) | C18—O2—C14—C15 | −99.29 (14) |
C2'—C3'—C4'—C5' | 177 (4) | O1—C13—C14—O2 | −4.02 (18) |
C3'—C4'—C5'—C6' | 21 (6) | C12—C13—C14—O2 | 174.63 (11) |
C4'—C5'—C6'—C7' | −11 (6) | O1—C13—C14—C15 | 178.13 (11) |
C5'—C6'—C7'—C8' | −12 (7) | C12—C13—C14—C15 | −3.22 (19) |
C6'—C7'—C8'—C3' | 27 (8) | C19—O3—C15—C16 | −2.60 (18) |
C6'—C7'—C8'—S1' | 178 (4) | C19—O3—C15—C14 | 175.84 (11) |
C4'—C3'—C8'—C7' | −17 (8) | O2—C14—C15—O3 | 7.32 (17) |
C2'—C3'—C8'—C7' | 160 (5) | C13—C14—C15—O3 | −174.83 (11) |
C4'—C3'—C8'—S1' | −174 (4) | O2—C14—C15—C16 | −174.18 (11) |
C2'—C3'—C8'—S1' | 3 (6) | C13—C14—C15—C16 | 3.68 (19) |
C1'—S1'—C8'—C7' | −160 (6) | O3—C15—C16—C11 | 177.06 (12) |
C1'—S1'—C8'—C3' | −6 (6) | C14—C15—C16—C11 | −1.30 (19) |
C2'—C1'—C9—N1 | −10 (12) | C12—C11—C16—C15 | −1.56 (19) |
S1'—C1'—C9—N1 | 174 (5) | C10—C11—C16—C15 | −178.49 (12) |
C2'—C1'—C9—C10 | −179 (6) |
N1—N2 | 1.324 (2) | N2—H2N | 0.87 (2) |
N1—C9 | 1.343 (2) | N3—C10 | 1.345 (2) |
N2—N3 | 1.330 (2) | ||
C8—S1—C1 | 91.50 (8) | C10—C9—C1 | 131.64 (14) |
N2—N1—C9 | 103.74 (13) | C9—C10—C11 | 131.16 (14) |
N2—N3—C10 | 103.74 (13) | O1—C13—C14 | 114.89 (14) |
C4—C3—C2 | 129.50 (16) |
N1—N2 | 1.3266 (15) | N2—C20 | 1.4527 (16) |
N1—C9 | 1.3477 (16) | N3—C10 | 1.3450 (16) |
N2—N3 | 1.3279 (15) | ||
N1—N2—N3 | 115.92 (10) | C4'—C3'—C2' | 132 (2) |
C2—C1—C9 | 129.94 (17) | C7'—C8'—S1' | 129 (2) |
C8—S1—C1 | 91.33 (8) | C1'—C9—C10 | 127.3 (11) |
C4—C3—C2 | 129.79 (17) | C10—C9—C1 | 132.41 (13) |
C9—C1'—S1' | 128.0 (18) | C9—C10—C11 | 132.90 (12) |
C8'—S1'—C1' | 95.8 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2N···O2i | 0.87 (2) | 2.16 (2) | 2.9381 (18) | 147.6 (18) |
N2—H2N···O3i | 0.87 (2) | 2.20 (2) | 2.8503 (18) | 130.8 (17) |
Symmetry code: (i) x−1/2, −y+3/2, z−1/2. |
Experimental details
(I) | (II) | |
Crystal data | ||
Chemical formula | C19H17N3O3S | C20H19N3O3S |
Mr | 367.41 | 381.44 |
Crystal system, space group | Monoclinic, P21/n | Triclinic, P1 |
Temperature (K) | 90 | 90 |
a, b, c (Å) | 11.8983 (2), 8.1860 (1), 18.4582 (3) | 8.8579 (1), 11.0761 (1), 11.2626 (1) |
α, β, γ (°) | 90, 105.5046 (7), 90 | 106.859 (4), 111.668 (5), 105.498 (4) |
V (Å3) | 1732.39 (5) | 891.51 (4) |
Z | 4 | 2 |
Radiation type | Mo Kα | Mo Kα |
µ (mm−1) | 0.21 | 0.21 |
Crystal size (mm) | 0.30 × 0.30 × 0.05 | 0.22 × 0.20 × 0.15 |
Data collection | ||
Diffractometer | Nonius KappaCCD diffractometer | Nonius KappaCCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2008a) | Multi-scan (SADABS; Sheldrick, 2008a) |
Tmin, Tmax | 0.816, 0.966 | 0.858, 0.962 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 28105, 3984, 3093 | 36591, 4097, 3572 |
Rint | 0.045 | 0.045 |
(sin θ/λ)max (Å−1) | 0.650 | 0.651 |
Refinement | ||
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.124, 1.07 | 0.037, 0.096, 1.08 |
No. of reflections | 3984 | 4097 |
No. of parameters | 241 | 276 |
No. of restraints | 0 | 161 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.55, −0.29 | 0.31, −0.28 |
Computer programs: COLLECT (Nonius, 1998), SCALEPACK (Otwinowski & Minor, 2006), DENZO-SMN (Otwinowski & Minor, 2006), SHELXS97 (Sheldrick, 2008b), XP in SHELXTL (Sheldrick, 2008b), SHELXL2013 (Sheldrick, 2008b) and CIFFIX (Parkin, 2013), SHELXL2014 (Sheldrick, 2008b) and CIFFIX (Parkin, 2013).
Acknowledgements
This investigation was supported by NIH/National Cancer Institute grant R01 CA140409.
References
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