organic compounds
Ethyl 3,6-di-O-benzyl-2-deoxy-N-phthalimido-1-thio-β-D-glucopyranoside
aDepartment of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden, and bDepartment of Environmental and Material Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
*Correspondence e-mail: lars.eriksson@mmk.su.se
In the title compound, C30H31NO6S, the plane of the N-phthalimido group is nearly orthogonal to the least-squares plane of the sugar ring (defined by atoms C2, C3, C5 and O5 using standard glucose nomenclature), making a dihedral angle of 72.8 (1)°. The thioethyl group has the exo-anomeric conformation. The hydroxy group forms an intermolecular hydrogen bond to the O atom in the sugar ring, generating [100] chains. There are four close π–π contacts with centroid–centroid distances less than 4.0 Å, all with dihedral angles between the interacting π systems of only ≃ 8°, supporting energetically favourable stacking interactions.
Related literature
The title thioglycoside is a valuable intermediate in synthesis of N-acetyl-D-glucosamine residues, see: Söderman et al. (2002). For the exo-anomeric effect, see: Thøgersen et al. (1982). For total puckering amplitudes for previously described pyranosides, see: Färnbäck et al. (2007). For the synthesis, see: Macindoe et al. (1995).
containingExperimental
Crystal data
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Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell CrysAlis RED (Oxford Diffraction, 2006); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536810047069/nk2066sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810047069/nk2066Isup2.hkl
The title compound (Macindoe et al., 1995) was obtained from ethyl 4,6-O-benzylidene-2-deoxy-N-phtalimido-1-thio-β-D– glucopyranoside by bensylation of O3 and subsequent reductive opening of the 4,6-O-benzylidene group using NaCNBH3 and HCl(g) in tetrahydrofuran to give the 3,6-di-O-benzyl derivative. The title compound was crystallized from diethyl ether/pentane at ambient temperature to give colorless crystals.
The hydrogen atoms were positioned in calculated positions and refined in riding mode with C–H = 0.95–1.00 Å, O–H = 0.84 Å and Uiso(H) = 1.2Ueq(C) or Uiso(H) = 1.5Ueq(C,O) for methyl and hydroxy H atoms. The hydroxy H atom initial position was determined with a tetrahedral C—O—H angle and location such that it forms a favourable hydrogen bond to another oxygen atom. Finally the hydroxy H atoms were allowed to rotate about the C—O bond. The
was determined to be 0.01 (7) from 2173 Friedel pairs.The title thioglycoside is a valuable intermediate in synthesis of φ (H1—C1—S1—C7) is govered by the exo-anomeric effect (Thøgersen et al., 1982) and also for this thioglucoside the torsion angles of 47.4° is typical of what is observed for glucosides with an oxygen atom at the glycosidic linkage. The Cremer-Pople parameters for the sugar ring (O5 → C5) are: Q=0.582 (2) Å, θ=12.5 (2)° and φ=310 (1)°. The Q-value is similar to total puckering amplitudes for previously described pyranosides (Färnbäck et al., 2007).
containing N-acetyl-D-glucosamine residues (Söderman et al. 2002). In the structure the least square plane of the N-phthaloyl group makes a dihedral angle of 72.8 (1)° to the sugar ring plane defined by the four atoms (C2,C3,C5,O5). The conformation of the glycosidic torsion angleThe hydroxy group present in the title compound forms an intermolecular hydrogen bond with O5 in a neighbouring molecule, making up chains along the [100] direction. Besides this conventional hydrogen bond the intermolecular packing is stabilized by interactions between substituents of the sugar rings. There are four close π–π contacts with d(Cg—Cg) < 4.0 Å, all with dihedral angles between the interacting π systems of only ≈ 8° supporting energetically favourable stacking interactions.
The title thioglycoside is a valuable intermediate in synthesis of
containing N-acetyl-D-glucosamine residues, see: Söderman et al. (2002). For the exo-anomeric effect, see: Thøgersen et al. (1982). For total puckering amplitudes for previously described pyranosides, see: Färnbäck et al. (2007). For the synthesis, see: Macindoe et al. (1995).Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell
CrysAlis RED (Oxford Diffraction, 2006); data reduction: CrysAlis RED (Oxford Diffraction, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1999); software used to prepare material for publication: PLATON (Spek, 2009).C30H31NO6S | F(000) = 1128 |
Mr = 533.62 | Dx = 1.327 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 6086 reflections |
a = 8.5313 (1) Å | θ = 3.7–32.3° |
b = 14.7728 (2) Å | µ = 0.17 mm−1 |
c = 21.1940 (4) Å | T = 100 K |
V = 2671.11 (7) Å3 | Prism, colourless |
Z = 4 | 0.25 × 0.10 × 0.05 mm |
Oxford Diffraction Xcalibur II with Sapphire-3 CCD diffractometer | 5059 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 4023 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.054 |
Detector resolution: 16.5467 pixels mm-1 | θmax = 25.7°, θmin = 3.7° |
ω scans at differnt φ | h = −10→10 |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2006) | k = −13→18 |
Tmin = 0.96, Tmax = 0.98 | l = −25→25 |
17362 measured reflections |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.044 | w = 1/[σ2(Fo2) + (0.0261P)2] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.067 | (Δ/σ)max = 0.001 |
S = 0.95 | Δρmax = 0.49 e Å−3 |
5059 reflections | Δρmin = −0.27 e Å−3 |
346 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
0 restraints | Extinction coefficient: 0.0028 (4) |
Primary atom site location: structure-invariant direct methods | Absolute structure: Flack (1983), 2173 Friedel pairs |
Secondary atom site location: difference Fourier map | Absolute structure parameter: 0.01 (7) |
C30H31NO6S | V = 2671.11 (7) Å3 |
Mr = 533.62 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 8.5313 (1) Å | µ = 0.17 mm−1 |
b = 14.7728 (2) Å | T = 100 K |
c = 21.1940 (4) Å | 0.25 × 0.10 × 0.05 mm |
Oxford Diffraction Xcalibur II with Sapphire-3 CCD diffractometer | 5059 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2006) | 4023 reflections with I > 2σ(I) |
Tmin = 0.96, Tmax = 0.98 | Rint = 0.054 |
17362 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | H-atom parameters constrained |
wR(F2) = 0.067 | Δρmax = 0.49 e Å−3 |
S = 0.95 | Δρmin = −0.27 e Å−3 |
5059 reflections | Absolute structure: Flack (1983), 2173 Friedel pairs |
346 parameters | Absolute structure parameter: 0.01 (7) |
0 restraints |
Experimental. CrysAlis RED, Oxford Diffraction Ltd.,Version 1.171.29.2. Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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 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 > σ(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 | 0.32681 (7) | 0.66068 (4) | 0.88067 (3) | 0.01942 (15) | |
C7 | 0.3666 (3) | 0.73807 (17) | 0.81586 (11) | 0.0255 (6) | |
H7A | 0.3252 | 0.7127 | 0.7760 | 0.031* | |
H7B | 0.3142 | 0.7968 | 0.8237 | 0.031* | |
C8 | 0.5419 (3) | 0.75202 (18) | 0.81042 (12) | 0.0301 (6) | |
H8A | 0.5822 | 0.7771 | 0.8500 | 0.045* | |
H8B | 0.5639 | 0.7941 | 0.7758 | 0.045* | |
H8C | 0.5929 | 0.6939 | 0.8019 | 0.045* | |
C1 | 0.1170 (2) | 0.66968 (15) | 0.88275 (11) | 0.0156 (5) | |
H1 | 0.0741 | 0.6638 | 0.8390 | 0.019* | |
C2 | 0.0500 (3) | 0.59407 (14) | 0.92453 (10) | 0.0149 (5) | |
H2 | 0.1098 | 0.5946 | 0.9651 | 0.018* | |
C3 | −0.1227 (3) | 0.60855 (14) | 0.94058 (11) | 0.0147 (5) | |
H3 | −0.1889 | 0.5930 | 0.9032 | 0.018* | |
C4 | −0.1537 (3) | 0.70604 (14) | 0.96039 (11) | 0.0150 (5) | |
H4 | −0.1002 | 0.7184 | 1.0015 | 0.018* | |
C5 | −0.0901 (3) | 0.76978 (15) | 0.91011 (11) | 0.0153 (5) | |
H5 | −0.1369 | 0.7540 | 0.8683 | 0.018* | |
O5 | 0.07730 (18) | 0.75651 (10) | 0.90779 (7) | 0.0171 (4) | |
C6 | −0.1223 (3) | 0.86722 (14) | 0.92464 (11) | 0.0195 (6) | |
H6A | −0.2366 | 0.8767 | 0.9293 | 0.023* | |
H6B | −0.0711 | 0.8841 | 0.9649 | 0.023* | |
N2 | 0.0742 (2) | 0.50558 (12) | 0.89529 (8) | 0.0144 (4) | |
C21 | 0.1697 (3) | 0.43819 (15) | 0.92183 (11) | 0.0206 (6) | |
O22 | 0.2428 (2) | 0.44655 (11) | 0.97041 (8) | 0.0297 (4) | |
C23 | 0.1603 (3) | 0.36067 (14) | 0.87817 (12) | 0.0203 (5) | |
C24 | 0.2295 (3) | 0.27621 (16) | 0.88227 (12) | 0.0295 (6) | |
H24 | 0.2966 | 0.2608 | 0.9164 | 0.035* | |
C25 | 0.1966 (3) | 0.21488 (16) | 0.83440 (12) | 0.0315 (7) | |
H25 | 0.2401 | 0.1558 | 0.8364 | 0.038* | |
C26 | 0.1023 (3) | 0.23773 (16) | 0.78409 (12) | 0.0265 (6) | |
H26 | 0.0831 | 0.1944 | 0.7519 | 0.032* | |
C27 | 0.0348 (3) | 0.32341 (15) | 0.77964 (11) | 0.0211 (6) | |
H27 | −0.0290 | 0.3399 | 0.7447 | 0.025* | |
C28 | 0.0649 (3) | 0.38319 (15) | 0.82828 (11) | 0.0165 (5) | |
C29 | 0.0087 (3) | 0.47748 (15) | 0.83788 (11) | 0.0152 (5) | |
O30 | −0.07326 (19) | 0.52424 (10) | 0.80436 (7) | 0.0210 (4) | |
O3 | −0.15948 (18) | 0.54906 (10) | 0.99189 (7) | 0.0198 (4) | |
C31 | −0.3063 (3) | 0.50213 (15) | 0.98636 (11) | 0.0223 (6) | |
H31A | −0.3821 | 0.5411 | 0.9637 | 0.027* | |
H31B | −0.3487 | 0.4903 | 1.0291 | 0.027* | |
C32 | −0.2895 (3) | 0.41349 (15) | 0.95149 (11) | 0.0223 (6) | |
C33 | −0.1825 (3) | 0.34987 (17) | 0.97248 (13) | 0.0380 (7) | |
H33 | −0.1169 | 0.3628 | 1.0076 | 0.046* | |
C34 | −0.1718 (4) | 0.26677 (19) | 0.94180 (16) | 0.0544 (10) | |
H34 | −0.1010 | 0.2221 | 0.9569 | 0.065* | |
C35 | −0.2628 (4) | 0.2490 (2) | 0.88986 (18) | 0.0575 (10) | |
H35 | −0.2541 | 0.1925 | 0.8687 | 0.069* | |
C36 | −0.3653 (4) | 0.3123 (2) | 0.86889 (16) | 0.0570 (10) | |
H36 | −0.4277 | 0.3003 | 0.8327 | 0.068* | |
C37 | −0.3799 (3) | 0.3945 (2) | 0.89988 (13) | 0.0406 (8) | |
H37 | −0.4532 | 0.4381 | 0.8851 | 0.049* | |
O4 | −0.31735 (17) | 0.71949 (11) | 0.96734 (7) | 0.0214 (4) | |
H4A | −0.3403 | 0.7205 | 1.0059 | 0.032* | |
O6 | −0.06402 (19) | 0.92258 (10) | 0.87509 (8) | 0.0278 (4) | |
C61 | −0.1367 (3) | 1.01026 (15) | 0.87450 (13) | 0.0273 (6) | |
H61A | −0.0701 | 1.0527 | 0.8503 | 0.033* | |
H61B | −0.1443 | 1.0332 | 0.9183 | 0.033* | |
C62 | −0.2970 (3) | 1.00801 (15) | 0.84587 (11) | 0.0215 (6) | |
C63 | −0.4318 (3) | 0.99598 (14) | 0.88219 (12) | 0.0211 (5) | |
H63 | −0.4234 | 0.9938 | 0.9269 | 0.025* | |
C64 | −0.5772 (3) | 0.98725 (15) | 0.85426 (12) | 0.0274 (6) | |
H64 | −0.6670 | 0.9767 | 0.8797 | 0.033* | |
C65 | −0.5930 (3) | 0.99374 (16) | 0.78969 (12) | 0.0301 (7) | |
H65 | −0.6932 | 0.9880 | 0.7705 | 0.036* | |
C66 | −0.4620 (4) | 1.00867 (17) | 0.75332 (13) | 0.0368 (7) | |
H66 | −0.4723 | 1.0143 | 0.7089 | 0.044* | |
C67 | −0.3158 (3) | 1.01558 (15) | 0.78078 (12) | 0.0305 (7) | |
H67 | −0.2266 | 1.0257 | 0.7549 | 0.037* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0140 (3) | 0.0220 (3) | 0.0222 (3) | 0.0024 (3) | 0.0021 (3) | 0.0003 (3) |
C7 | 0.0210 (16) | 0.0300 (15) | 0.0256 (15) | −0.0020 (12) | 0.0010 (11) | 0.0062 (12) |
C8 | 0.0232 (16) | 0.0318 (15) | 0.0353 (17) | −0.0039 (13) | 0.0063 (12) | 0.0013 (13) |
C1 | 0.0131 (12) | 0.0157 (12) | 0.0180 (13) | 0.0045 (10) | −0.0022 (10) | −0.0044 (11) |
C2 | 0.0171 (13) | 0.0156 (13) | 0.0118 (13) | 0.0027 (11) | −0.0043 (10) | −0.0024 (10) |
C3 | 0.0166 (14) | 0.0183 (13) | 0.0091 (13) | −0.0013 (10) | −0.0003 (10) | −0.0001 (10) |
C4 | 0.0081 (13) | 0.0219 (13) | 0.0148 (13) | 0.0027 (11) | −0.0007 (10) | −0.0028 (10) |
C5 | 0.0132 (14) | 0.0177 (13) | 0.0151 (13) | 0.0018 (10) | −0.0007 (10) | −0.0032 (10) |
O5 | 0.0155 (9) | 0.0154 (9) | 0.0203 (9) | 0.0016 (7) | 0.0001 (7) | −0.0039 (7) |
C6 | 0.0176 (14) | 0.0193 (14) | 0.0217 (14) | 0.0040 (11) | 0.0015 (11) | 0.0014 (11) |
N2 | 0.0189 (11) | 0.0129 (10) | 0.0114 (10) | 0.0031 (9) | −0.0011 (8) | −0.0028 (8) |
C21 | 0.0265 (15) | 0.0184 (13) | 0.0168 (14) | 0.0034 (13) | 0.0000 (12) | 0.0002 (11) |
O22 | 0.0424 (12) | 0.0276 (10) | 0.0190 (10) | 0.0120 (9) | −0.0102 (9) | −0.0042 (8) |
C23 | 0.0293 (14) | 0.0155 (13) | 0.0162 (13) | 0.0038 (11) | 0.0019 (12) | −0.0029 (11) |
C24 | 0.0447 (17) | 0.0248 (14) | 0.0190 (14) | 0.0126 (13) | −0.0043 (14) | −0.0001 (13) |
C25 | 0.0480 (19) | 0.0146 (13) | 0.0319 (16) | 0.0104 (13) | 0.0022 (14) | −0.0001 (12) |
C26 | 0.0360 (17) | 0.0201 (15) | 0.0236 (15) | −0.0035 (13) | 0.0041 (13) | −0.0070 (12) |
C27 | 0.0261 (15) | 0.0193 (14) | 0.0180 (14) | −0.0025 (12) | 0.0007 (11) | −0.0021 (11) |
C28 | 0.0211 (14) | 0.0149 (13) | 0.0135 (13) | 0.0005 (11) | 0.0049 (11) | 0.0012 (10) |
C29 | 0.0139 (13) | 0.0159 (13) | 0.0159 (13) | −0.0005 (10) | 0.0036 (11) | 0.0008 (11) |
O30 | 0.0234 (10) | 0.0190 (9) | 0.0205 (10) | 0.0025 (8) | −0.0060 (8) | −0.0023 (7) |
O3 | 0.0218 (9) | 0.0205 (9) | 0.0172 (9) | −0.0045 (8) | 0.0014 (7) | 0.0037 (7) |
C31 | 0.0197 (14) | 0.0204 (13) | 0.0269 (14) | −0.0048 (12) | 0.0062 (11) | 0.0018 (11) |
C32 | 0.0269 (16) | 0.0179 (13) | 0.0221 (14) | −0.0060 (12) | 0.0077 (12) | 0.0028 (11) |
C33 | 0.056 (2) | 0.0241 (16) | 0.0342 (17) | −0.0014 (15) | 0.0080 (15) | 0.0051 (13) |
C34 | 0.083 (3) | 0.0226 (17) | 0.057 (2) | 0.0080 (18) | 0.032 (2) | 0.0126 (16) |
C35 | 0.075 (3) | 0.0244 (17) | 0.073 (3) | −0.0148 (17) | 0.031 (2) | −0.0201 (19) |
C36 | 0.057 (2) | 0.064 (2) | 0.051 (2) | −0.0161 (19) | −0.0022 (18) | −0.0312 (19) |
C37 | 0.0401 (19) | 0.0418 (18) | 0.0397 (19) | −0.0019 (14) | −0.0013 (15) | −0.0122 (14) |
O4 | 0.0150 (9) | 0.0266 (9) | 0.0225 (9) | 0.0008 (8) | 0.0042 (8) | −0.0009 (8) |
O6 | 0.0289 (10) | 0.0167 (9) | 0.0377 (11) | 0.0066 (8) | 0.0098 (9) | 0.0046 (8) |
C61 | 0.0272 (16) | 0.0168 (14) | 0.0378 (17) | 0.0014 (11) | 0.0061 (13) | 0.0024 (12) |
C62 | 0.0341 (16) | 0.0085 (12) | 0.0221 (14) | 0.0057 (12) | 0.0075 (12) | −0.0010 (10) |
C63 | 0.0266 (15) | 0.0178 (13) | 0.0189 (13) | 0.0078 (12) | 0.0016 (13) | 0.0005 (12) |
C64 | 0.0289 (16) | 0.0210 (15) | 0.0325 (16) | 0.0097 (13) | 0.0042 (13) | 0.0024 (12) |
C65 | 0.0388 (18) | 0.0205 (14) | 0.0311 (16) | 0.0077 (14) | −0.0114 (14) | −0.0002 (13) |
C66 | 0.066 (2) | 0.0267 (16) | 0.0182 (15) | 0.0091 (16) | −0.0061 (15) | −0.0012 (12) |
C67 | 0.0456 (19) | 0.0170 (14) | 0.0289 (16) | 0.0037 (14) | 0.0160 (14) | 0.0012 (12) |
S1—C1 | 1.796 (2) | C26—H26 | 0.9500 |
S1—C7 | 1.819 (2) | C27—C28 | 1.381 (3) |
C7—C8 | 1.513 (3) | C27—H27 | 0.9500 |
C7—H7A | 0.9900 | C28—C29 | 1.487 (3) |
C7—H7B | 0.9900 | C29—O30 | 1.213 (3) |
C8—H8A | 0.9800 | O3—C31 | 1.436 (3) |
C8—H8B | 0.9800 | C31—C32 | 1.510 (3) |
C8—H8C | 0.9800 | C31—H31A | 0.9900 |
C1—O5 | 1.429 (2) | C31—H31B | 0.9900 |
C1—C2 | 1.536 (3) | C32—C37 | 1.367 (4) |
C1—H1 | 1.0000 | C32—C33 | 1.383 (3) |
C2—N2 | 1.462 (3) | C33—C34 | 1.392 (4) |
C2—C3 | 1.526 (3) | C33—H33 | 0.9500 |
C2—H2 | 1.0000 | C34—C35 | 1.373 (5) |
C3—O3 | 1.433 (3) | C34—H34 | 0.9500 |
C3—C4 | 1.523 (3) | C35—C36 | 1.356 (4) |
C3—H3 | 1.0000 | C35—H35 | 0.9500 |
C4—O4 | 1.417 (2) | C36—C37 | 1.386 (4) |
C4—C5 | 1.522 (3) | C36—H36 | 0.9500 |
C4—H4 | 1.0000 | C37—H37 | 0.9500 |
C5—O5 | 1.442 (3) | O4—H4A | 0.8400 |
C5—C6 | 1.498 (3) | O6—C61 | 1.436 (3) |
C5—H5 | 1.0000 | C61—C62 | 1.496 (3) |
C6—O6 | 1.421 (3) | C61—H61A | 0.9900 |
C6—H6A | 0.9900 | C61—H61B | 0.9900 |
C6—H6B | 0.9900 | C62—C67 | 1.393 (3) |
N2—C29 | 1.402 (3) | C62—C63 | 1.395 (3) |
N2—C21 | 1.404 (3) | C63—C64 | 1.381 (3) |
C21—O22 | 1.210 (3) | C63—H63 | 0.9500 |
C21—C23 | 1.474 (3) | C64—C65 | 1.378 (3) |
C23—C28 | 1.376 (3) | C64—H64 | 0.9500 |
C23—C24 | 1.383 (3) | C65—C66 | 1.376 (4) |
C24—C25 | 1.389 (3) | C65—H65 | 0.9500 |
C24—H24 | 0.9500 | C66—C67 | 1.380 (4) |
C25—C26 | 1.377 (3) | C66—H66 | 0.9500 |
C25—H25 | 0.9500 | C67—H67 | 0.9500 |
C26—C27 | 1.394 (3) | ||
C1—S1—C7 | 99.10 (11) | C24—C25—H25 | 119.2 |
C8—C7—S1 | 109.13 (17) | C25—C26—C27 | 121.1 (2) |
C8—C7—H7A | 109.9 | C25—C26—H26 | 119.5 |
S1—C7—H7A | 109.9 | C27—C26—H26 | 119.5 |
C8—C7—H7B | 109.9 | C28—C27—C26 | 117.0 (2) |
S1—C7—H7B | 109.9 | C28—C27—H27 | 121.5 |
H7A—C7—H7B | 108.3 | C26—C27—H27 | 121.5 |
C7—C8—H8A | 109.5 | C23—C28—C27 | 121.9 (2) |
C7—C8—H8B | 109.5 | C23—C28—C29 | 108.2 (2) |
H8A—C8—H8B | 109.5 | C27—C28—C29 | 129.9 (2) |
C7—C8—H8C | 109.5 | O30—C29—N2 | 124.7 (2) |
H8A—C8—H8C | 109.5 | O30—C29—C28 | 129.7 (2) |
H8B—C8—H8C | 109.5 | N2—C29—C28 | 105.5 (2) |
O5—C1—C2 | 110.52 (17) | C3—O3—C31 | 115.16 (17) |
O5—C1—S1 | 108.16 (14) | O3—C31—C32 | 112.04 (18) |
C2—C1—S1 | 109.35 (15) | O3—C31—H31A | 109.2 |
O5—C1—H1 | 109.6 | C32—C31—H31A | 109.2 |
C2—C1—H1 | 109.6 | O3—C31—H31B | 109.2 |
S1—C1—H1 | 109.6 | C32—C31—H31B | 109.2 |
N2—C2—C3 | 110.89 (18) | H31A—C31—H31B | 107.9 |
N2—C2—C1 | 110.68 (18) | C37—C32—C33 | 119.4 (2) |
C3—C2—C1 | 112.68 (17) | C37—C32—C31 | 121.0 (2) |
N2—C2—H2 | 107.4 | C33—C32—C31 | 119.6 (2) |
C3—C2—H2 | 107.4 | C32—C33—C34 | 119.5 (3) |
C1—C2—H2 | 107.4 | C32—C33—H33 | 120.3 |
O3—C3—C4 | 109.41 (17) | C34—C33—H33 | 120.3 |
O3—C3—C2 | 107.13 (17) | C35—C34—C33 | 120.4 (3) |
C4—C3—C2 | 111.22 (18) | C35—C34—H34 | 119.8 |
O3—C3—H3 | 109.7 | C33—C34—H34 | 119.8 |
C4—C3—H3 | 109.7 | C36—C35—C34 | 119.7 (3) |
C2—C3—H3 | 109.7 | C36—C35—H35 | 120.1 |
O4—C4—C5 | 109.72 (18) | C34—C35—H35 | 120.1 |
O4—C4—C3 | 109.43 (18) | C35—C36—C37 | 120.5 (3) |
C5—C4—C3 | 109.25 (17) | C35—C36—H36 | 119.8 |
O4—C4—H4 | 109.5 | C37—C36—H36 | 119.8 |
C5—C4—H4 | 109.5 | C32—C37—C36 | 120.5 (3) |
C3—C4—H4 | 109.5 | C32—C37—H37 | 119.7 |
O5—C5—C6 | 108.63 (19) | C36—C37—H37 | 119.7 |
O5—C5—C4 | 107.04 (18) | C4—O4—H4A | 109.5 |
C6—C5—C4 | 112.65 (18) | C6—O6—C61 | 111.98 (18) |
O5—C5—H5 | 109.5 | O6—C61—C62 | 112.21 (19) |
C6—C5—H5 | 109.5 | O6—C61—H61A | 109.2 |
C4—C5—H5 | 109.5 | C62—C61—H61A | 109.2 |
C1—O5—C5 | 111.66 (16) | O6—C61—H61B | 109.2 |
O6—C6—C5 | 109.69 (18) | C62—C61—H61B | 109.2 |
O6—C6—H6A | 109.7 | H61A—C61—H61B | 107.9 |
C5—C6—H6A | 109.7 | C67—C62—C63 | 117.5 (2) |
O6—C6—H6B | 109.7 | C67—C62—C61 | 120.4 (2) |
C5—C6—H6B | 109.7 | C63—C62—C61 | 122.2 (2) |
H6A—C6—H6B | 108.2 | C64—C63—C62 | 121.1 (2) |
C29—N2—C21 | 111.67 (18) | C64—C63—H63 | 119.5 |
C29—N2—C2 | 125.19 (18) | C62—C63—H63 | 119.5 |
C21—N2—C2 | 123.14 (18) | C65—C64—C63 | 120.5 (3) |
O22—C21—N2 | 124.6 (2) | C65—C64—H64 | 119.8 |
O22—C21—C23 | 129.9 (2) | C63—C64—H64 | 119.8 |
N2—C21—C23 | 105.5 (2) | C66—C65—C64 | 119.2 (3) |
C28—C23—C24 | 121.3 (2) | C66—C65—H65 | 120.4 |
C28—C23—C21 | 109.05 (19) | C64—C65—H65 | 120.4 |
C24—C23—C21 | 129.7 (2) | C65—C66—C67 | 120.7 (2) |
C23—C24—C25 | 117.2 (2) | C65—C66—H66 | 119.7 |
C23—C24—H24 | 121.4 | C67—C66—H66 | 119.7 |
C25—C24—H24 | 121.4 | C66—C67—C62 | 121.1 (2) |
C26—C25—C24 | 121.6 (2) | C66—C67—H67 | 119.5 |
C26—C25—H25 | 119.2 | C62—C67—H67 | 119.5 |
C7—S1—C1—H1 | 47.4 | C24—C25—C26—C27 | −0.6 (4) |
C1—S1—C7—C8 | 172.39 (18) | C25—C26—C27—C28 | −1.0 (4) |
C7—S1—C1—O5 | −72.06 (17) | C24—C23—C28—C27 | −0.8 (4) |
C7—S1—C1—C2 | 167.52 (16) | C21—C23—C28—C27 | 179.8 (2) |
O5—C1—C2—N2 | 173.35 (17) | C24—C23—C28—C29 | 179.6 (2) |
S1—C1—C2—N2 | −67.7 (2) | C21—C23—C28—C29 | 0.2 (3) |
O5—C1—C2—C3 | 48.5 (2) | C26—C27—C28—C23 | 1.7 (4) |
S1—C1—C2—C3 | 167.49 (15) | C26—C27—C28—C29 | −178.8 (2) |
N2—C2—C3—O3 | 70.3 (2) | C21—N2—C29—O30 | −177.1 (2) |
C1—C2—C3—O3 | −164.98 (17) | C2—N2—C29—O30 | 2.2 (3) |
N2—C2—C3—C4 | −170.16 (17) | C21—N2—C29—C28 | 1.4 (2) |
C1—C2—C3—C4 | −45.5 (2) | C2—N2—C29—C28 | −179.31 (19) |
O3—C3—C4—O4 | −69.0 (2) | C23—C28—C29—O30 | 177.4 (2) |
C2—C3—C4—O4 | 172.88 (17) | C27—C28—C29—O30 | −2.1 (4) |
O3—C3—C4—C5 | 170.90 (17) | C23—C28—C29—N2 | −1.0 (2) |
C2—C3—C4—C5 | 52.7 (2) | C27—C28—C29—N2 | 179.5 (2) |
O4—C4—C5—O5 | 176.83 (17) | C4—C3—O3—C31 | 102.6 (2) |
C3—C4—C5—O5 | −63.2 (2) | C2—C3—O3—C31 | −136.77 (18) |
O4—C4—C5—C6 | 57.5 (2) | C3—O3—C31—C32 | 88.6 (2) |
C3—C4—C5—C6 | 177.45 (19) | O3—C31—C32—C37 | −125.6 (3) |
C2—C1—O5—C5 | −61.2 (2) | O3—C31—C32—C33 | 55.3 (3) |
S1—C1—O5—C5 | 179.08 (15) | C37—C32—C33—C34 | −1.8 (4) |
C6—C5—O5—C1 | −169.14 (17) | C31—C32—C33—C34 | 177.4 (2) |
C4—C5—O5—C1 | 69.0 (2) | C32—C33—C34—C35 | 2.1 (4) |
O5—C5—C6—O6 | 63.3 (2) | C33—C34—C35—C36 | −0.9 (5) |
C4—C5—C6—O6 | −178.31 (19) | C34—C35—C36—C37 | −0.6 (5) |
C3—C2—N2—C29 | 62.2 (3) | C33—C32—C37—C36 | 0.3 (4) |
C1—C2—N2—C29 | −63.6 (3) | C31—C32—C37—C36 | −178.9 (3) |
C3—C2—N2—C21 | −118.6 (2) | C35—C36—C37—C32 | 0.9 (5) |
C1—C2—N2—C21 | 115.6 (2) | C5—C6—O6—C61 | 159.61 (19) |
C29—N2—C21—O22 | 178.0 (2) | C6—O6—C61—C62 | −78.3 (3) |
C2—N2—C21—O22 | −1.3 (4) | O6—C61—C62—C67 | −85.7 (3) |
C29—N2—C21—C23 | −1.3 (3) | O6—C61—C62—C63 | 92.6 (3) |
C2—N2—C21—C23 | 179.4 (2) | C67—C62—C63—C64 | 3.3 (3) |
O22—C21—C23—C28 | −178.6 (3) | C61—C62—C63—C64 | −175.0 (2) |
N2—C21—C23—C28 | 0.7 (3) | C62—C63—C64—C65 | −2.5 (3) |
O22—C21—C23—C24 | 2.1 (5) | C63—C64—C65—C66 | 0.3 (4) |
N2—C21—C23—C24 | −178.7 (2) | C64—C65—C66—C67 | 1.1 (4) |
C28—C23—C24—C25 | −0.9 (4) | C65—C66—C67—C62 | −0.3 (4) |
C21—C23—C24—C25 | 178.4 (3) | C63—C62—C67—C66 | −1.9 (3) |
C23—C24—C25—C26 | 1.6 (4) | C61—C62—C67—C66 | 176.4 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4A···O5i | 0.84 | 1.99 | 2.817 (2) | 168 |
Symmetry code: (i) x−1/2, −y+3/2, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C30H31NO6S |
Mr | 533.62 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 100 |
a, b, c (Å) | 8.5313 (1), 14.7728 (2), 21.1940 (4) |
V (Å3) | 2671.11 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.17 |
Crystal size (mm) | 0.25 × 0.10 × 0.05 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur II with Sapphire-3 CCD |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2006) |
Tmin, Tmax | 0.96, 0.98 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17362, 5059, 4023 |
Rint | 0.054 |
(sin θ/λ)max (Å−1) | 0.610 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.067, 0.95 |
No. of reflections | 5059 |
No. of parameters | 346 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.49, −0.27 |
Absolute structure | Flack (1983), 2173 Friedel pairs |
Absolute structure parameter | 0.01 (7) |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2006), CrysAlis RED (Oxford Diffraction, 2006), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg, 1999), PLATON (Spek, 2009).
S1—C1 | 1.796 (2) | S1—C7 | 1.819 (2) |
C1—S1—C7 | 99.10 (11) | ||
C7—S1—C1—H1 | 47.4 | O5—C5—C6—O6 | 63.3 (2) |
C7—S1—C1—O5 | −72.06 (17) |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4A···O5i | 0.84 | 1.99 | 2.817 (2) | 168 |
Symmetry code: (i) x−1/2, −y+3/2, −z+2. |
Acknowledgements
This work was supported by a grant from the Swedish Research Council and by the Faculty of Natural Sciences at Stockholm University
References
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The title thioglycoside is a valuable intermediate in synthesis of oligosaccharides containing N-acetyl-D-glucosamine residues (Söderman et al. 2002). In the structure the least square plane of the N-phthaloyl group makes a dihedral angle of 72.8 (1)° to the sugar ring plane defined by the four atoms (C2,C3,C5,O5). The conformation of the glycosidic torsion angle φ (H1—C1—S1—C7) is govered by the exo-anomeric effect (Thøgersen et al., 1982) and also for this thioglucoside the torsion angles of 47.4° is typical of what is observed for glucosides with an oxygen atom at the glycosidic linkage. The Cremer-Pople parameters for the sugar ring (O5 → C5) are: Q=0.582 (2) Å, θ=12.5 (2)° and φ=310 (1)°. The Q-value is similar to total puckering amplitudes for previously described pyranosides (Färnbäck et al., 2007).
The hydroxy group present in the title compound forms an intermolecular hydrogen bond with O5 in a neighbouring molecule, making up chains along the [100] direction. Besides this conventional hydrogen bond the intermolecular packing is stabilized by interactions between substituents of the sugar rings. There are four close π–π contacts with d(Cg—Cg) < 4.0 Å, all with dihedral angles between the interacting π systems of only ≈ 8° supporting energetically favourable stacking interactions.