organic compounds
N-{(2S)-3-Hydroxy-4-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]-1-phenyl-2-butyl}-4-methylbenzenesulfonamide
aInstituto de Tecnologia em Fármacos - Farmanguinhos, FioCruz - Fundação, Oswaldo Cruz, R. Sizenando Nabuco, 100, Manguinhos, 21041-250, Rio de Janeiro, RJ, Brazil, bUniversidade Federal Fluminense, Instituto de Química, Departamento de Química Orgânica, Outeiro de São João Batista, s/no, Centro, Niterói, 24020-141, Rio de Janeiro, Brazil, cNuQuiA - Núcleo de Qímica Aplicada, Departamento de Química Orgânica, UFPel, Campus Universitário s/n, 96010-900 Pelotas, RS, Brazil, dCentro de Desenvolvimento Tecnológico em Saúde (CDTS), Fundação Oswaldo Cruz (FIOCRUZ), Casa Amarela, Campus de Manguinhos, Av. Brasil 4365, 21040-900, Rio de Janeiro, RJ, Brazil, eCHEMSOL, 1 Harcourt Road, Aberdeen AB15 5NY, Scotland, and fDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: Edward.Tiekink@gmail.com
The thiadiazoyl and sulfonyl-benzene rings in the title compound, C20H23N3O3S3, are aligned to the same side of the molecule, forming a twisted `U' shape [dihedral angle = 77.6 (5)°]. The benzyl-benzene ring is orientated in the opposite direction from the molecule but projects approximately along the same axis as the other rings [dihedral angle between benzene rings = 28.2 (5)°] so that, overall, the molecule has a flattened shape. The hydroxy and amine groups are almost syn which enables the formation of intermolecular hydroxy-OH⋯N(thiadiazoyl) and amine-H⋯O(sulfonyl) hydrogen bonds leading to a supramolecular chain aligned along the a axis.
Related literature
For background to the use of amino et al. (2009); de Oliveira et al. (2008); Brik & Wong (2003); Ghosh et al. (2001); Parikh et al. (2005); Andrews et al. (2006). For the anti-malarial activity of hydroxyethylpiperazines, see: Cunico, Gomes, Moreth et al. (2009). For the biological activity of hydroxyethylsulfonamides, see: Cunico et al. (2008, 2011); Cunico, Gomes, Facchinetti et al. (2009). For related structures, see: Cunico, Gomes, Harrison et al. (2009); Gomes et al. (2011).
in medicinal chemistry, see: FerreiraExperimental
Crystal data
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Refinement
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Data collection: COLLECT (Hooft, 1998); cell DENZO (Otwinowski & Minor, 1997) and COLLECT; data reduction: DENZO and COLLECT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536811033575/hb6366sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811033575/hb6366Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811033575/hb6366Isup3.cml
Referring to Fig. 1, trifluoroacetic acid (1.5 ml, 20 mmol) was added to a solution of 2 (2 mmol), prepared from 1 and 5-methyl-1,3,4-thiadiazole-2(3H)-thione, in CH2Cl2 (6 ml). The mixture was stirred for 6 h, rotary evaporated to leave a residue, which was dissolved in EtOAc (20 ml), successively washed with 5% NaHCO3 aqueous solution, water and brine, and dried over MgSO4. The solvent was removed to afford the corresponding free amine, which was dissolved in EtOAc (10 mL) to which were added triethylamine (2.2 mmol) and N,N-dimethylformamide (0.2 mmol). The system was stirred for 30 minutes under nitrogen and p-toluenenesulfonyl chloride (2.0 mmol) was slowly added. The mixture was stirred for 8 h, successively washed with 5% HCl aqueous solution, water and brine, and dried over MgSO4. The solvent was removed in high vacuum and the title product 3 was obtained in 68% yield after recrystallization from hexane. The crystals used in the δ: 7.42 (d, 2H, J = 8.4 Hz, PhSO2); 7.11 (d, 2H, J = 8.0 Hz, PhSO2); 7.07–6.99 (m, 5H, Ph); 3.84–3.82 (m, 1H, H2); 3.58 (dd, 1H, 1J = 13.6 Hz, 2J = 4.4 Hz; H1b); 3.61–3.55 (m, 1H, H3); 3.22 (dd, 1H, 1J = 13.6 Hz, 2J = 8.4 Hz, H1a); 2.92 (dd, 1H, 1J = 14.0 Hz, 2J = 4.4 Hz, H4b); 2.72 (s, 3H, CH3(Het)); 2.59 (dd, 1H, J = 14.0 Hz, 2J = 8.4 Hz, H4a); 2.35 (s, 3H; CH3) p.p.m.. 13C NMR [100.0 MHz, CDCl3] δ: 168.6; 167.9; 144.1; 139.9; 139.2; 130.7; 129.4; 127.8; 127.3; 115.2; 73.4; 60.6; 39.4; 37.1; 21.6; 15.4 p.p.m. IR (cm-1; KBr pellets): νmax: 3273 (OH); 3023 (NH); 1330, 1161 (O═S═O); 686 (C—S).
were grown from EtOH solution. M.pt: 412–414 K. EI—MS (m/z) (%): 472.1 (M++Na, 80%). 1H NMR [400.00 MHz, CDCl3]The C-bound H atoms were geometrically placed (C–H = 0.95–1.00 Å) and refined as riding with Uiso(H) = 1.2–1.5Ueq(C). The O– and N-bound H atoms were located from a difference map and refined with the distance restraints O–H = 0.84 ± 0.01 and N–H = 0.88±0.01 Å, and with Uiso(H) = zUeq(carrier atom); z = 1.5 for O and z = 1.2 for N. The
of the Flack absolute sturcture was ambiguous [refined value = 0.24 (19)] and 1482 Friedel pairs were averaged in the final and the was assigned on the basis of the of the L-serine starting material. The small (0.02 x 0.02 x 0.14 mm) needle was weakly diffracting but it was not deemed necessary to secure a data set with synchrotron radiation. The poor nature of the sample is also reflected in the relatively high values of Rint and in the residuals. However, the structure has been determined unambiguously.Data collection: COLLECT (Hooft, 1998); cell
DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998); data reduction: DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C20H23N3O3S3 | F(000) = 944 |
Mr = 449.59 | Dx = 1.395 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 20956 reflections |
a = 5.0420 (2) Å | θ = 2.9–27.5° |
b = 18.4840 (8) Å | µ = 0.37 mm−1 |
c = 22.9650 (8) Å | T = 120 K |
V = 2140.25 (15) Å3 | Needle, colourless |
Z = 4 | 0.14 × 0.02 × 0.02 mm |
Bruker–Nonius Roper CCD camera on κ-goniostat diffractometer | 2182 independent reflections |
Radiation source: Bruker–Nonius FR591 rotating anode | 1538 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.144 |
Detector resolution: 9.091 pixels mm-1 | θmax = 25.0°, θmin = 3.4° |
ϕ & ω scans | h = −4→5 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | k = −20→21 |
Tmin = 0.438, Tmax = 1.000 | l = −27→26 |
12594 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.078 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.206 | w = 1/[σ2(Fo2) + (0.1P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.29 | (Δ/σ)max < 0.001 |
2182 reflections | Δρmax = 0.48 e Å−3 |
270 parameters | Δρmin = −0.47 e Å−3 |
2 restraints | Absolute structure: nd |
Primary atom site location: structure-invariant direct methods |
C20H23N3O3S3 | V = 2140.25 (15) Å3 |
Mr = 449.59 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 5.0420 (2) Å | µ = 0.37 mm−1 |
b = 18.4840 (8) Å | T = 120 K |
c = 22.9650 (8) Å | 0.14 × 0.02 × 0.02 mm |
Bruker–Nonius Roper CCD camera on κ-goniostat diffractometer | 2182 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | 1538 reflections with I > 2σ(I) |
Tmin = 0.438, Tmax = 1.000 | Rint = 0.144 |
12594 measured reflections |
R[F2 > 2σ(F2)] = 0.078 | 2 restraints |
wR(F2) = 0.206 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.29 | Δρmax = 0.48 e Å−3 |
2182 reflections | Δρmin = −0.47 e Å−3 |
270 parameters | Absolute structure: nd |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.1474 (5) | 0.17021 (13) | 0.05038 (10) | 0.0243 (6) | |
S2 | 0.3692 (5) | 0.07316 (15) | 0.14153 (11) | 0.0324 (7) | |
S3 | 0.2827 (4) | 0.01335 (13) | −0.18450 (11) | 0.0222 (6) | |
O1 | −0.1857 (12) | 0.1270 (3) | −0.0645 (3) | 0.0230 (15) | |
H1O | −0.23 (2) | 0.097 (4) | −0.039 (3) | 0.034* | |
O2 | 0.1680 (13) | −0.0208 (3) | −0.2346 (3) | 0.0246 (15) | |
O3 | 0.5507 (12) | 0.0390 (4) | −0.1872 (3) | 0.0302 (17) | |
N1 | 0.5551 (15) | 0.0748 (5) | 0.0380 (4) | 0.027 (2) | |
N2 | 0.7075 (16) | 0.0234 (4) | 0.0689 (4) | 0.030 (2) | |
N3 | 0.0990 (15) | 0.0809 (4) | −0.1688 (3) | 0.0205 (18) | |
H3N | −0.074 (3) | 0.078 (5) | −0.173 (4) | 0.025* | |
C1 | 0.3774 (19) | 0.1027 (5) | 0.0713 (4) | 0.023 (2) | |
C2 | 0.632 (2) | 0.0174 (5) | 0.1215 (4) | 0.029 (2) | |
C3 | 0.757 (2) | −0.0339 (6) | 0.1642 (5) | 0.036 (3) | |
H3A | 0.6187 | −0.0634 | 0.1825 | 0.054* | |
H3B | 0.8512 | −0.0063 | 0.1943 | 0.054* | |
H3C | 0.8827 | −0.0655 | 0.1438 | 0.054* | |
C4 | 0.215 (2) | 0.1833 (5) | −0.0267 (4) | 0.024 (2) | |
H4A | 0.1495 | 0.2316 | −0.0384 | 0.028* | |
H4B | 0.4099 | 0.1829 | −0.0326 | 0.028* | |
C5 | 0.0909 (18) | 0.1267 (5) | −0.0661 (4) | 0.019 (2) | |
H5 | 0.1553 | 0.0778 | −0.0539 | 0.023* | |
C6 | 0.1811 (18) | 0.1406 (5) | −0.1295 (4) | 0.020 (2) | |
H6 | 0.3791 | 0.1436 | −0.1299 | 0.024* | |
C7 | 0.264 (2) | −0.0480 (5) | −0.1259 (4) | 0.025 (2) | |
C8 | 0.058 (2) | −0.0988 (6) | −0.1256 (5) | 0.032 (3) | |
H8 | −0.0527 | −0.1045 | −0.1587 | 0.039* | |
C9 | 0.020 (2) | −0.1406 (6) | −0.0763 (5) | 0.038 (3) | |
H9 | −0.1215 | −0.1746 | −0.0750 | 0.046* | |
C10 | 0.189 (3) | −0.1329 (6) | −0.0285 (5) | 0.043 (3) | |
C11 | 0.395 (3) | −0.0845 (6) | −0.0296 (5) | 0.044 (3) | |
H11 | 0.5110 | −0.0797 | 0.0029 | 0.052* | |
C12 | 0.431 (2) | −0.0421 (6) | −0.0799 (5) | 0.033 (3) | |
H12 | 0.5749 | −0.0090 | −0.0816 | 0.040* | |
C13 | 0.135 (4) | −0.1739 (7) | 0.0276 (6) | 0.073 (5) | |
H13A | 0.2824 | −0.1666 | 0.0546 | 0.110* | |
H13B | 0.1159 | −0.2255 | 0.0190 | 0.110* | |
H13C | −0.0296 | −0.1559 | 0.0452 | 0.110* | |
C14 | 0.071 (2) | 0.2108 (5) | −0.1548 (5) | 0.025 (2) | |
H14A | −0.1230 | 0.2056 | −0.1598 | 0.031* | |
H14B | 0.1017 | 0.2504 | −0.1265 | 0.031* | |
C15 | 0.190 (2) | 0.2317 (5) | −0.2115 (4) | 0.022 (2) | |
C16 | 0.399 (2) | 0.2813 (6) | −0.2132 (5) | 0.034 (3) | |
H16 | 0.4615 | 0.3017 | −0.1777 | 0.041* | |
C17 | 0.519 (2) | 0.3018 (6) | −0.2654 (5) | 0.038 (3) | |
H17 | 0.6593 | 0.3359 | −0.2655 | 0.046* | |
C18 | 0.433 (2) | 0.2729 (7) | −0.3151 (6) | 0.045 (3) | |
H18 | 0.5146 | 0.2859 | −0.3509 | 0.054* | |
C19 | 0.227 (3) | 0.2243 (6) | −0.3145 (5) | 0.047 (3) | |
H19 | 0.1661 | 0.2042 | −0.3501 | 0.056* | |
C20 | 0.108 (3) | 0.2043 (6) | −0.2634 (5) | 0.039 (3) | |
H20 | −0.0348 | 0.1707 | −0.2642 | 0.046* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0275 (13) | 0.0300 (13) | 0.0153 (13) | 0.0022 (11) | −0.0008 (10) | −0.0003 (10) |
S2 | 0.0342 (15) | 0.0430 (16) | 0.0201 (14) | 0.0050 (13) | 0.0017 (11) | 0.0089 (11) |
S3 | 0.0178 (12) | 0.0274 (14) | 0.0213 (13) | −0.0001 (10) | 0.0010 (9) | −0.0063 (10) |
O1 | 0.019 (3) | 0.029 (4) | 0.021 (4) | −0.005 (3) | 0.002 (3) | 0.006 (3) |
O2 | 0.027 (4) | 0.032 (4) | 0.015 (3) | −0.010 (3) | 0.000 (3) | −0.008 (3) |
O3 | 0.017 (3) | 0.045 (4) | 0.029 (4) | 0.002 (3) | 0.001 (3) | −0.006 (3) |
N1 | 0.014 (4) | 0.044 (5) | 0.022 (5) | −0.007 (4) | 0.004 (3) | 0.004 (4) |
N2 | 0.027 (5) | 0.035 (5) | 0.028 (5) | 0.009 (4) | −0.004 (4) | 0.004 (4) |
N3 | 0.017 (4) | 0.026 (4) | 0.018 (4) | −0.007 (3) | −0.003 (3) | −0.005 (3) |
C1 | 0.018 (5) | 0.027 (5) | 0.024 (6) | −0.013 (4) | 0.002 (4) | −0.003 (4) |
C2 | 0.033 (6) | 0.031 (6) | 0.024 (6) | 0.001 (5) | −0.008 (5) | 0.003 (5) |
C3 | 0.032 (6) | 0.041 (6) | 0.035 (7) | 0.009 (5) | −0.002 (5) | 0.007 (5) |
C4 | 0.036 (6) | 0.026 (5) | 0.009 (5) | 0.000 (5) | 0.001 (4) | −0.003 (4) |
C5 | 0.022 (5) | 0.018 (5) | 0.018 (5) | 0.008 (4) | 0.008 (4) | 0.004 (4) |
C6 | 0.018 (5) | 0.021 (5) | 0.022 (5) | 0.002 (4) | 0.002 (4) | −0.012 (4) |
C7 | 0.028 (5) | 0.020 (5) | 0.026 (6) | 0.009 (4) | 0.002 (4) | −0.001 (4) |
C8 | 0.029 (6) | 0.043 (7) | 0.026 (6) | 0.006 (5) | −0.002 (5) | 0.002 (5) |
C9 | 0.051 (7) | 0.030 (6) | 0.034 (8) | 0.006 (5) | −0.003 (5) | 0.003 (5) |
C10 | 0.069 (9) | 0.039 (6) | 0.021 (7) | 0.024 (7) | −0.011 (6) | −0.004 (5) |
C11 | 0.054 (8) | 0.042 (7) | 0.035 (7) | 0.015 (6) | −0.021 (6) | −0.001 (5) |
C12 | 0.038 (6) | 0.032 (6) | 0.029 (7) | −0.001 (5) | −0.012 (5) | −0.003 (5) |
C13 | 0.123 (14) | 0.057 (9) | 0.040 (9) | 0.016 (10) | 0.001 (9) | 0.005 (7) |
C14 | 0.030 (6) | 0.019 (5) | 0.027 (6) | −0.002 (4) | 0.004 (4) | −0.002 (4) |
C15 | 0.030 (6) | 0.025 (5) | 0.011 (5) | 0.008 (4) | −0.001 (4) | −0.004 (4) |
C16 | 0.033 (6) | 0.042 (7) | 0.027 (6) | −0.010 (5) | −0.003 (5) | 0.006 (5) |
C17 | 0.040 (7) | 0.036 (7) | 0.038 (8) | −0.011 (5) | −0.003 (5) | 0.009 (6) |
C18 | 0.048 (7) | 0.050 (8) | 0.036 (8) | 0.003 (6) | 0.012 (6) | 0.012 (6) |
C19 | 0.089 (10) | 0.041 (7) | 0.010 (6) | 0.002 (7) | 0.007 (6) | 0.001 (5) |
C20 | 0.048 (7) | 0.039 (6) | 0.030 (7) | −0.009 (5) | 0.001 (6) | 0.009 (5) |
S1—C1 | 1.770 (10) | C7—C8 | 1.397 (14) |
S1—C4 | 1.818 (9) | C8—C9 | 1.384 (16) |
S2—C1 | 1.704 (10) | C8—H8 | 0.9500 |
S2—C2 | 1.742 (11) | C9—C10 | 1.397 (16) |
S3—O3 | 1.433 (7) | C9—H9 | 0.9500 |
S3—O2 | 1.435 (6) | C10—C11 | 1.374 (18) |
S3—N3 | 1.596 (8) | C10—C13 | 1.518 (18) |
S3—C7 | 1.763 (10) | C11—C12 | 1.407 (16) |
O1—C5 | 1.395 (11) | C11—H11 | 0.9500 |
O1—H1O | 0.838 (11) | C12—H12 | 0.9500 |
N1—C1 | 1.285 (12) | C13—H13A | 0.9800 |
N1—N2 | 1.414 (11) | C13—H13B | 0.9800 |
N2—C2 | 1.271 (13) | C13—H13C | 0.9800 |
N3—C6 | 1.485 (11) | C14—C15 | 1.484 (14) |
N3—H3N | 0.878 (11) | C14—H14A | 0.9900 |
C2—C3 | 1.504 (14) | C14—H14B | 0.9900 |
C3—H3A | 0.9800 | C15—C20 | 1.361 (15) |
C3—H3B | 0.9800 | C15—C16 | 1.398 (14) |
C3—H3C | 0.9800 | C16—C17 | 1.395 (16) |
C4—C5 | 1.520 (13) | C16—H16 | 0.9500 |
C4—H4A | 0.9900 | C17—C18 | 1.332 (17) |
C4—H4B | 0.9900 | C17—H17 | 0.9500 |
C5—C6 | 1.546 (13) | C18—C19 | 1.374 (17) |
C5—H5 | 1.0000 | C18—H18 | 0.9500 |
C6—C14 | 1.526 (13) | C19—C20 | 1.369 (16) |
C6—H6 | 1.0000 | C19—H19 | 0.9500 |
C7—C12 | 1.357 (15) | C20—H20 | 0.9500 |
C1—S1—C4 | 103.5 (5) | C8—C7—S3 | 118.4 (8) |
C1—S2—C2 | 85.4 (5) | C9—C8—C7 | 118.9 (11) |
O3—S3—O2 | 119.4 (4) | C9—C8—H8 | 120.6 |
O3—S3—N3 | 107.4 (4) | C7—C8—H8 | 120.6 |
O2—S3—N3 | 107.0 (4) | C8—C9—C10 | 120.0 (12) |
O3—S3—C7 | 107.3 (5) | C8—C9—H9 | 120.0 |
O2—S3—C7 | 107.9 (4) | C10—C9—H9 | 120.0 |
N3—S3—C7 | 107.4 (4) | C11—C10—C9 | 120.9 (11) |
C5—O1—H1O | 105 (8) | C11—C10—C13 | 118.5 (12) |
C1—N1—N2 | 110.5 (8) | C9—C10—C13 | 120.4 (14) |
C2—N2—N1 | 111.9 (8) | C10—C11—C12 | 118.3 (10) |
C6—N3—S3 | 123.9 (6) | C10—C11—H11 | 120.8 |
C6—N3—H3N | 112 (6) | C12—C11—H11 | 120.8 |
S3—N3—H3N | 121 (6) | C7—C12—C11 | 121.0 (10) |
N1—C1—S2 | 116.9 (8) | C7—C12—H12 | 119.5 |
N1—C1—S1 | 125.3 (8) | C11—C12—H12 | 119.5 |
S2—C1—S1 | 117.8 (6) | C10—C13—H13A | 109.5 |
N2—C2—C3 | 123.4 (10) | C10—C13—H13B | 109.5 |
N2—C2—S2 | 115.3 (7) | H13A—C13—H13B | 109.5 |
C3—C2—S2 | 121.3 (8) | C10—C13—H13C | 109.5 |
C2—C3—H3A | 109.5 | H13A—C13—H13C | 109.5 |
C2—C3—H3B | 109.5 | H13B—C13—H13C | 109.5 |
H3A—C3—H3B | 109.5 | C15—C14—C6 | 114.1 (8) |
C2—C3—H3C | 109.5 | C15—C14—H14A | 108.7 |
H3A—C3—H3C | 109.5 | C6—C14—H14A | 108.7 |
H3B—C3—H3C | 109.5 | C15—C14—H14B | 108.7 |
C5—C4—S1 | 114.2 (7) | C6—C14—H14B | 108.7 |
C5—C4—H4A | 108.7 | H14A—C14—H14B | 107.6 |
S1—C4—H4A | 108.7 | C20—C15—C16 | 116.7 (9) |
C5—C4—H4B | 108.7 | C20—C15—C14 | 123.3 (9) |
S1—C4—H4B | 108.7 | C16—C15—C14 | 120.0 (9) |
H4A—C4—H4B | 107.6 | C17—C16—C15 | 121.9 (10) |
O1—C5—C4 | 113.2 (8) | C17—C16—H16 | 119.1 |
O1—C5—C6 | 108.6 (8) | C15—C16—H16 | 119.1 |
C4—C5—C6 | 109.0 (7) | C18—C17—C16 | 119.3 (11) |
O1—C5—H5 | 108.7 | C18—C17—H17 | 120.4 |
C4—C5—H5 | 108.7 | C16—C17—H17 | 120.4 |
C6—C5—H5 | 108.7 | C17—C18—C19 | 119.8 (12) |
N3—C6—C14 | 107.5 (8) | C17—C18—H18 | 120.1 |
N3—C6—C5 | 111.4 (8) | C19—C18—H18 | 120.1 |
C14—C6—C5 | 113.1 (7) | C20—C19—C18 | 121.2 (12) |
N3—C6—H6 | 108.2 | C20—C19—H19 | 119.4 |
C14—C6—H6 | 108.2 | C18—C19—H19 | 119.4 |
C5—C6—H6 | 108.2 | C15—C20—C19 | 121.1 (11) |
C12—C7—C8 | 120.7 (10) | C15—C20—H20 | 119.4 |
C12—C7—S3 | 120.7 (8) | C19—C20—H20 | 119.4 |
C1—N1—N2—C2 | −0.1 (12) | O3—S3—C7—C8 | −158.1 (8) |
O3—S3—N3—C6 | −35.0 (9) | O2—S3—C7—C8 | −28.3 (9) |
O2—S3—N3—C6 | −164.3 (7) | N3—S3—C7—C8 | 86.7 (8) |
C7—S3—N3—C6 | 80.1 (8) | C12—C7—C8—C9 | 3.3 (15) |
N2—N1—C1—S2 | 0.5 (10) | S3—C7—C8—C9 | −171.4 (8) |
N2—N1—C1—S1 | 179.0 (6) | C7—C8—C9—C10 | −1.5 (16) |
C2—S2—C1—N1 | −0.6 (8) | C8—C9—C10—C11 | −0.5 (18) |
C2—S2—C1—S1 | −179.2 (6) | C8—C9—C10—C13 | 174.9 (11) |
C4—S1—C1—N1 | 3.4 (9) | C9—C10—C11—C12 | 0.7 (17) |
C4—S1—C1—S2 | −178.2 (5) | C13—C10—C11—C12 | −174.8 (11) |
N1—N2—C2—C3 | 179.3 (9) | C8—C7—C12—C11 | −3.1 (16) |
N1—N2—C2—S2 | −0.3 (11) | S3—C7—C12—C11 | 171.4 (8) |
C1—S2—C2—N2 | 0.5 (8) | C10—C11—C12—C7 | 1.1 (17) |
C1—S2—C2—C3 | −179.1 (9) | N3—C6—C14—C15 | −66.3 (10) |
C1—S1—C4—C5 | 80.3 (8) | C5—C6—C14—C15 | 170.2 (8) |
S1—C4—C5—O1 | 63.4 (9) | C6—C14—C15—C20 | 82.7 (12) |
S1—C4—C5—C6 | −175.7 (6) | C6—C14—C15—C16 | −96.6 (11) |
S3—N3—C6—C14 | 141.8 (7) | C20—C15—C16—C17 | −0.1 (16) |
S3—N3—C6—C5 | −93.7 (9) | C14—C15—C16—C17 | 179.2 (10) |
O1—C5—C6—N3 | −64.8 (9) | C15—C16—C17—C18 | −0.6 (17) |
C4—C5—C6—N3 | 171.5 (7) | C16—C17—C18—C19 | 0.9 (18) |
O1—C5—C6—C14 | 56.5 (10) | C17—C18—C19—C20 | −0.5 (19) |
C4—C5—C6—C14 | −67.3 (10) | C16—C15—C20—C19 | 0.5 (16) |
O3—S3—C7—C12 | 27.3 (10) | C14—C15—C20—C19 | −178.8 (11) |
O2—S3—C7—C12 | 157.1 (8) | C18—C19—C20—C15 | −0.2 (19) |
N3—S3—C7—C12 | −87.9 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1O···N1i | 0.84 (7) | 2.11 (8) | 2.860 (11) | 148 (8) |
N3—H3N···O3i | 0.88 (2) | 2.05 (4) | 2.902 (10) | 163 (9) |
Symmetry code: (i) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C20H23N3O3S3 |
Mr | 449.59 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 120 |
a, b, c (Å) | 5.0420 (2), 18.4840 (8), 22.9650 (8) |
V (Å3) | 2140.25 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.37 |
Crystal size (mm) | 0.14 × 0.02 × 0.02 |
Data collection | |
Diffractometer | Bruker–Nonius Roper CCD camera on κ-goniostat diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2007) |
Tmin, Tmax | 0.438, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12594, 2182, 1538 |
Rint | 0.144 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.078, 0.206, 1.29 |
No. of reflections | 2182 |
No. of parameters | 270 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.48, −0.47 |
Absolute structure | Nd |
Computer programs: , DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1O···N1i | 0.84 (7) | 2.11 (8) | 2.860 (11) | 148 (8) |
N3—H3N···O3i | 0.879 (18) | 2.05 (4) | 2.902 (10) | 163 (9) |
Symmetry code: (i) x−1, y, z. |
Footnotes
‡Additional correspondence author, e-mail: j.wardell@abdn.ac.uk.
Acknowledgements
The use of the EPSRC X-ray crystallographic service at the University of Southampton, England, and the valuable assistance of the staff there is gratefully acknowledged. JLW acknowledges support from CAPES (Brazil).
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Amino alcohols play versatile roles in medicinal chemistry (Ferreira et al., 2009; de Oliveira et al., 2008; Brik & Wong, 2003, Ghosh et al., 2001; Parikh et al., 2005; Andrews et al., 2006). Some of us recently reported the anti-malarial activity of hydroxyethypiperazines against Plasmodium falciparum (Cunico, Gomes, Moreth et al., 2009) and of hydroxyethylsulfonamide derivatives against Plasmodium falciparum (Cunico et al., 2008; Cunico, Gomes, Facchinetti et al., 2009), and mycobacterium tuberculosis H37Rv (Cunico et al., 2011). In conjunction with these biological studies, crystal structure determinations of (2R,4S)-4-(arylmethyl)-1-(4-phenyl-3-amino-2-hydroxybutyl)-piperazine derivatives (Cunico, Gomes, Harrison et al., 2009) and an example of a pyrimidyl derivative (Gomes et al., 2011) have been carried out. In continuation of these structural studies, we now report the synthesis, Fig. 1, and structure of the title compound, (I).
In (I), Fig. 2, the thiadiazoyl and sulfonyl-benzene rings are orientated to the same side of the molecule but are not aligned in a parallel fashion as seen in the dihedral angle of 77.6 (5) ° formed between the rings. The benzyl-benzene is directed away from the rest of the twisted U-shaped molecule and forms a dihedral angle of 28.2 (5) ° with the sulfonyl-benzene ring. The key stereochemical feature of the molecule is the almost syn alignment of the hydroxyl and amine groups. This has an important consequence in the crystal packing.
As seen from Fig. 3, molecules assemble into a supramolecular chain via hydroxyl-OH···N(thiadiazoyl) and amine-H···O(sulfonyl) hydrogen bonds, Table 1. The chains are aligned along the a axis and assemble in the crystal structure without any specific interactions between them, Fig. 4.