organic compounds
3-(4-Methoxyphenyl)-6-(phenylsulfonyl)perhydro-1,3-thiazolo[3′,4′:1,2]pyrrolo[4,5-c]pyrrole
aCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600025, India, bLaboratory of X-ray Crystallography, Indian Institute of Chemical Technology, Hyderabad 500007, India, and cDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600025, India
*Correspondence e-mail: d_velu@yahoo.com
In the title compound, C21H24N2O3S2, the three five-membered rings adopt envelope conformations. The dihedral angle between the two aromatic rings is 68.4 (1)°. C—H⋯O interactions link the molecules into a chain and the chains are cross-linked via C—H⋯π interactions involving the methoxyphenyl ring.
Related literature
For puckering parameters, see: Cremer & Pople (1975). For asymmetry parameters, see: Nardelli (1983). For general background, see: Amal Raj et al. (2003); Tsuru et al. (1988). For a related structure, see: Kavitha et al. (2006).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 and PARST (Nardelli, 1995).
Supporting information
10.1107/S1600536808002134/ci2542sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808002134/ci2542Isup2.hkl
A mixture of 2-(N-allyl-N-phenylsulfonyl) butanal (1.0 mmol) and of 2-p-methoxyphenylthiazolidine-4-carboxylic acid (1.5 mmol) in dry toluene (30 ml) was refluxed under Dean-Stark conditions till the completion of the reaction (3 h). The reaction mixture was then concentrated under reduced pressure. The residue was extracted with dichloromethane (2× 20 ml) and water (2× 20 ml). The organic layer was washed with brine solution (2× 20 ml), dried over anhydrous sodium sulfate and concentrated in vacuum. The residue was then subjected to
(silica gel, 100–200 mesh) with hexane-ethylacetate (8:2) to obtain the cycloadduct. Single crystals were obtained by recrystallization from methanol.H atoms were included in calculated positions and treated in the subsequent
as riding atoms, with C—H = 0.93–0.98 Å and Uiso(H) = 1.2–1.5(methyl) Ueq(C).Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PARST (Nardelli, 1995).Fig. 1. The molecular structure of the title compound, showing 30% probability displacement ellipsoids. | |
Fig. 2. The crystal packing of the title compound viewed down the b axis. |
C21H24N2O3S2 | F(000) = 880 |
Mr = 416.54 | Dx = 1.368 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2394 reflections |
a = 14.5533 (8) Å | θ = 2.4–28.0° |
b = 8.3319 (5) Å | µ = 0.29 mm−1 |
c = 16.8828 (9) Å | T = 293 K |
β = 98.923 (1)° | Block, pale yellow |
V = 2022.4 (2) Å3 | 0.24 × 0.23 × 0.21 mm |
Z = 4 |
Bruker SMART APEX CCD area-detector diffractometer | 3991 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.020 |
Graphite monochromator | θmax = 28.0°, θmin = 2.4° |
ω scans | h = −18→18 |
22482 measured reflections | k = −10→11 |
4769 independent reflections | l = −21→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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.137 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.082P)2 + 0.473P] where P = (Fo2 + 2Fc2)/3 |
4769 reflections | (Δ/σ)max = 0.001 |
254 parameters | Δρmax = 0.46 e Å−3 |
0 restraints | Δρmin = −0.16 e Å−3 |
C21H24N2O3S2 | V = 2022.4 (2) Å3 |
Mr = 416.54 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.5533 (8) Å | µ = 0.29 mm−1 |
b = 8.3319 (5) Å | T = 293 K |
c = 16.8828 (9) Å | 0.24 × 0.23 × 0.21 mm |
β = 98.923 (1)° |
Bruker SMART APEX CCD area-detector diffractometer | 3991 reflections with I > 2σ(I) |
22482 measured reflections | Rint = 0.020 |
4769 independent reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.137 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.46 e Å−3 |
4769 reflections | Δρmin = −0.16 e Å−3 |
254 parameters |
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 | ||
C1 | 0.65354 (11) | 0.0421 (2) | 0.27798 (12) | 0.0543 (4) | |
H1A | 0.6206 | 0.0086 | 0.2262 | 0.065* | |
H1B | 0.6116 | 0.0371 | 0.3173 | 0.065* | |
C2 | 0.74011 (12) | −0.0593 (2) | 0.30329 (11) | 0.0518 (4) | |
H2 | 0.7317 | −0.1681 | 0.2813 | 0.062* | |
C3 | 0.81895 (10) | 0.0293 (2) | 0.26945 (9) | 0.0439 (3) | |
H3 | 0.8425 | −0.0356 | 0.2285 | 0.053* | |
C4 | 0.77552 (11) | 0.1850 (2) | 0.23356 (11) | 0.0526 (4) | |
H4A | 0.8180 | 0.2747 | 0.2453 | 0.063* | |
H4B | 0.7576 | 0.1760 | 0.1760 | 0.063* | |
C5 | 0.77266 (13) | −0.0635 (3) | 0.39390 (11) | 0.0626 (5) | |
H5A | 0.7481 | 0.0270 | 0.4201 | 0.075* | |
H5B | 0.7534 | −0.1622 | 0.4171 | 0.075* | |
C6 | 0.87749 (12) | −0.0543 (3) | 0.40161 (10) | 0.0569 (4) | |
H6 | 0.9046 | −0.0132 | 0.4545 | 0.068* | |
C7 | 0.92284 (15) | −0.2141 (3) | 0.38422 (15) | 0.0727 (6) | |
H7A | 0.8825 | −0.2742 | 0.3436 | 0.087* | |
H7B | 0.9354 | −0.2788 | 0.4325 | 0.087* | |
C8 | 0.98632 (10) | 0.04673 (19) | 0.32061 (9) | 0.0436 (3) | |
H8 | 0.9840 | 0.0590 | 0.2626 | 0.052* | |
C9 | 1.05361 (11) | 0.16890 (19) | 0.36222 (9) | 0.0436 (3) | |
C10 | 1.14935 (12) | 0.1485 (2) | 0.36544 (12) | 0.0550 (4) | |
H10 | 1.1713 | 0.0577 | 0.3423 | 0.066* | |
C11 | 1.21182 (12) | 0.2592 (2) | 0.40186 (11) | 0.0564 (4) | |
H11 | 1.2752 | 0.2426 | 0.4032 | 0.068* | |
C12 | 1.18109 (11) | 0.3950 (2) | 0.43660 (9) | 0.0479 (4) | |
C13 | 1.08652 (11) | 0.4217 (2) | 0.43145 (10) | 0.0494 (4) | |
H13 | 1.0649 | 0.5149 | 0.4526 | 0.059* | |
C14 | 1.02415 (11) | 0.3086 (2) | 0.39456 (10) | 0.0478 (4) | |
H14 | 0.9607 | 0.3274 | 0.3915 | 0.057* | |
C15 | 1.22176 (17) | 0.6174 (3) | 0.52376 (16) | 0.0805 (6) | |
H15A | 1.1852 | 0.6967 | 0.4918 | 0.121* | |
H15B | 1.2763 | 0.6669 | 0.5529 | 0.121* | |
H15C | 1.1857 | 0.5707 | 0.5608 | 0.121* | |
C16 | 0.56879 (11) | 0.3179 (2) | 0.15034 (11) | 0.0500 (4) | |
C17 | 0.48978 (12) | 0.2243 (2) | 0.13751 (13) | 0.0618 (5) | |
H17 | 0.4622 | 0.1885 | 0.1804 | 0.074* | |
C18 | 0.45196 (16) | 0.1844 (3) | 0.05922 (17) | 0.0806 (7) | |
H18 | 0.3991 | 0.1203 | 0.0497 | 0.097* | |
C19 | 0.4920 (2) | 0.2388 (4) | −0.00370 (16) | 0.0903 (8) | |
H19 | 0.4664 | 0.2110 | −0.0558 | 0.108* | |
C20 | 0.56928 (18) | 0.3335 (4) | 0.00945 (16) | 0.0913 (8) | |
H20 | 0.5956 | 0.3713 | −0.0337 | 0.110* | |
C21 | 0.60859 (14) | 0.3736 (3) | 0.08689 (14) | 0.0717 (6) | |
H21 | 0.6615 | 0.4377 | 0.0959 | 0.086* | |
N1 | 0.69349 (9) | 0.20342 (17) | 0.27399 (8) | 0.0463 (3) | |
N2 | 0.89254 (8) | 0.05860 (16) | 0.33850 (7) | 0.0425 (3) | |
O1 | 1.24842 (9) | 0.49627 (18) | 0.47326 (9) | 0.0655 (4) | |
O2 | 0.55465 (11) | 0.3473 (2) | 0.30071 (10) | 0.0803 (5) | |
O3 | 0.68031 (11) | 0.49379 (17) | 0.24897 (11) | 0.0845 (5) | |
S1 | 1.02851 (3) | −0.16174 (6) | 0.34950 (3) | 0.06126 (16) | |
S2 | 0.62353 (3) | 0.35418 (5) | 0.24924 (3) | 0.05671 (16) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0391 (8) | 0.0524 (9) | 0.0690 (11) | −0.0053 (7) | 0.0012 (7) | 0.0057 (8) |
C2 | 0.0474 (9) | 0.0442 (8) | 0.0619 (10) | −0.0017 (7) | 0.0025 (7) | 0.0016 (7) |
C3 | 0.0408 (7) | 0.0513 (9) | 0.0379 (7) | 0.0052 (6) | 0.0013 (6) | −0.0012 (6) |
C4 | 0.0375 (8) | 0.0647 (11) | 0.0543 (9) | 0.0039 (7) | 0.0033 (7) | 0.0166 (8) |
C5 | 0.0539 (10) | 0.0767 (13) | 0.0591 (10) | 0.0051 (9) | 0.0148 (8) | 0.0172 (9) |
C6 | 0.0501 (9) | 0.0787 (13) | 0.0418 (8) | 0.0110 (9) | 0.0065 (7) | 0.0119 (8) |
C7 | 0.0654 (12) | 0.0688 (13) | 0.0853 (14) | 0.0174 (10) | 0.0158 (10) | 0.0367 (11) |
C8 | 0.0414 (7) | 0.0472 (8) | 0.0412 (7) | 0.0091 (6) | 0.0033 (6) | 0.0006 (6) |
C9 | 0.0405 (8) | 0.0486 (8) | 0.0402 (7) | 0.0083 (6) | 0.0018 (6) | 0.0033 (6) |
C10 | 0.0434 (8) | 0.0551 (10) | 0.0650 (10) | 0.0143 (7) | 0.0035 (7) | −0.0071 (8) |
C11 | 0.0369 (8) | 0.0617 (11) | 0.0681 (11) | 0.0100 (7) | 0.0006 (7) | −0.0002 (9) |
C12 | 0.0454 (8) | 0.0520 (9) | 0.0441 (8) | 0.0009 (7) | 0.0005 (6) | 0.0052 (7) |
C13 | 0.0495 (9) | 0.0479 (9) | 0.0507 (9) | 0.0068 (7) | 0.0080 (7) | −0.0013 (7) |
C14 | 0.0380 (7) | 0.0537 (9) | 0.0513 (9) | 0.0088 (7) | 0.0052 (6) | −0.0007 (7) |
C15 | 0.0727 (13) | 0.0751 (14) | 0.0901 (16) | −0.0104 (12) | 0.0017 (12) | −0.0244 (12) |
C16 | 0.0384 (8) | 0.0460 (8) | 0.0629 (10) | 0.0071 (6) | −0.0007 (7) | 0.0056 (7) |
C17 | 0.0448 (9) | 0.0581 (11) | 0.0795 (13) | −0.0016 (8) | −0.0002 (8) | 0.0085 (9) |
C18 | 0.0584 (12) | 0.0700 (13) | 0.1027 (18) | −0.0003 (10) | −0.0211 (12) | −0.0081 (13) |
C19 | 0.0831 (17) | 0.108 (2) | 0.0723 (14) | 0.0324 (15) | −0.0127 (12) | −0.0067 (14) |
C20 | 0.0679 (14) | 0.135 (2) | 0.0702 (14) | 0.0243 (15) | 0.0080 (11) | 0.0286 (14) |
C21 | 0.0458 (9) | 0.0839 (14) | 0.0830 (14) | 0.0029 (9) | 0.0022 (9) | 0.0269 (12) |
N1 | 0.0369 (6) | 0.0462 (7) | 0.0539 (7) | 0.0004 (5) | 0.0009 (5) | −0.0001 (6) |
N2 | 0.0384 (6) | 0.0499 (7) | 0.0376 (6) | 0.0061 (5) | 0.0012 (5) | −0.0003 (5) |
O1 | 0.0506 (7) | 0.0672 (8) | 0.0754 (9) | −0.0045 (6) | −0.0007 (6) | −0.0105 (7) |
O2 | 0.0724 (9) | 0.0955 (12) | 0.0742 (9) | 0.0299 (8) | 0.0151 (7) | −0.0118 (8) |
O3 | 0.0785 (10) | 0.0448 (7) | 0.1191 (13) | −0.0049 (7) | −0.0199 (9) | −0.0081 (8) |
S1 | 0.0558 (3) | 0.0487 (3) | 0.0802 (3) | 0.01351 (19) | 0.0134 (2) | −0.0004 (2) |
S2 | 0.0506 (3) | 0.0477 (3) | 0.0683 (3) | 0.00750 (18) | −0.0018 (2) | −0.00786 (19) |
C1—N1 | 1.470 (2) | C10—C11 | 1.372 (3) |
C1—C2 | 1.522 (2) | C10—H10 | 0.93 |
C1—H1A | 0.97 | C11—C12 | 1.381 (3) |
C1—H1B | 0.97 | C11—H11 | 0.93 |
C2—C5 | 1.530 (3) | C12—O1 | 1.367 (2) |
C2—C3 | 1.546 (2) | C12—C13 | 1.384 (2) |
C2—H2 | 0.98 | C13—C14 | 1.387 (2) |
C3—N2 | 1.4760 (18) | C13—H13 | 0.93 |
C3—C4 | 1.527 (2) | C14—H14 | 0.93 |
C3—H3 | 0.98 | C15—O1 | 1.413 (3) |
C4—N1 | 1.472 (2) | C15—H15A | 0.96 |
C4—H4A | 0.97 | C15—H15B | 0.96 |
C4—H4B | 0.97 | C15—H15C | 0.96 |
C5—C6 | 1.513 (2) | C16—C21 | 1.375 (3) |
C5—H5A | 0.97 | C16—C17 | 1.378 (2) |
C5—H5B | 0.97 | C16—S2 | 1.7611 (18) |
C6—N2 | 1.463 (2) | C17—C18 | 1.391 (3) |
C6—C7 | 1.534 (3) | C17—H17 | 0.93 |
C6—H6 | 0.98 | C18—C19 | 1.366 (4) |
C7—S1 | 1.783 (2) | C18—H18 | 0.93 |
C7—H7A | 0.97 | C19—C20 | 1.364 (4) |
C7—H7B | 0.97 | C19—H19 | 0.93 |
C8—N2 | 1.4461 (19) | C20—C21 | 1.384 (4) |
C8—C9 | 1.508 (2) | C20—H20 | 0.93 |
C8—S1 | 1.8812 (16) | C21—H21 | 0.93 |
C8—H8 | 0.98 | N1—S2 | 1.630 (1) |
C9—C14 | 1.382 (2) | O2—S2 | 1.426 (2) |
C9—C10 | 1.396 (2) | O3—S2 | 1.427 (2) |
N1—C1—C2 | 101.78 (13) | C11—C10—H10 | 119.2 |
N1—C1—H1A | 111.4 | C9—C10—H10 | 119.2 |
C2—C1—H1A | 111.4 | C10—C11—C12 | 120.36 (15) |
N1—C1—H1B | 111.4 | C10—C11—H11 | 119.8 |
C2—C1—H1B | 111.4 | C12—C11—H11 | 119.8 |
H1A—C1—H1B | 109.3 | O1—C12—C11 | 116.22 (15) |
C1—C2—C5 | 114.08 (16) | O1—C12—C13 | 124.43 (16) |
C1—C2—C3 | 105.12 (13) | C11—C12—C13 | 119.34 (16) |
C5—C2—C3 | 104.36 (13) | C12—C13—C14 | 119.61 (16) |
C1—C2—H2 | 111.0 | C12—C13—H13 | 120.2 |
C5—C2—H2 | 111.0 | C14—C13—H13 | 120.2 |
C3—C2—H2 | 111.0 | C9—C14—C13 | 121.87 (15) |
N2—C3—C4 | 112.20 (14) | C9—C14—H14 | 119.1 |
N2—C3—C2 | 106.04 (12) | C13—C14—H14 | 119.1 |
C4—C3—C2 | 105.49 (12) | O1—C15—H15A | 109.5 |
N2—C3—H3 | 111.0 | O1—C15—H15B | 109.5 |
C4—C3—H3 | 111.0 | H15A—C15—H15B | 109.5 |
C2—C3—H3 | 111.0 | O1—C15—H15C | 109.5 |
N1—C4—C3 | 102.71 (13) | H15A—C15—H15C | 109.5 |
N1—C4—H4A | 111.2 | H15B—C15—H15C | 109.5 |
C3—C4—H4A | 111.2 | C21—C16—C17 | 120.69 (19) |
N1—C4—H4B | 111.2 | C21—C16—S2 | 119.82 (15) |
C3—C4—H4B | 111.2 | C17—C16—S2 | 119.33 (15) |
H4A—C4—H4B | 109.1 | C16—C17—C18 | 118.8 (2) |
C6—C5—C2 | 103.68 (14) | C16—C17—H17 | 120.6 |
C6—C5—H5A | 111.0 | C18—C17—H17 | 120.6 |
C2—C5—H5A | 111.0 | C19—C18—C17 | 120.4 (2) |
C6—C5—H5B | 111.0 | C19—C18—H18 | 119.8 |
C2—C5—H5B | 111.0 | C17—C18—H18 | 119.8 |
H5A—C5—H5B | 109.0 | C18—C19—C20 | 120.4 (2) |
N2—C6—C5 | 103.46 (13) | C18—C19—H19 | 119.8 |
N2—C6—C7 | 107.54 (14) | C20—C19—H19 | 119.8 |
C5—C6—C7 | 113.43 (19) | C19—C20—C21 | 120.2 (2) |
N2—C6—H6 | 110.7 | C19—C20—H20 | 119.9 |
C5—C6—H6 | 110.7 | C21—C20—H20 | 119.9 |
C7—C6—H6 | 110.7 | C16—C21—C20 | 119.5 (2) |
C6—C7—S1 | 105.61 (15) | C16—C21—H21 | 120.3 |
C6—C7—H7A | 110.6 | C20—C21—H21 | 120.3 |
S1—C7—H7A | 110.6 | C1—N1—C4 | 106.32 (14) |
C6—C7—H7B | 110.6 | C1—N1—S2 | 118.72 (10) |
S1—C7—H7B | 110.6 | C4—N1—S2 | 118.72 (11) |
H7A—C7—H7B | 108.8 | C8—N2—C6 | 111.15 (12) |
N2—C8—C9 | 114.97 (13) | C8—N2—C3 | 114.61 (12) |
N2—C8—S1 | 106.84 (11) | C6—N2—C3 | 107.25 (13) |
C9—C8—S1 | 109.88 (10) | C12—O1—C15 | 117.99 (15) |
N2—C8—H8 | 108.3 | C7—S1—C8 | 92.74 (8) |
C9—C8—H8 | 108.3 | O3—S2—O2 | 119.8 (1) |
S1—C8—H8 | 108.3 | O3—S2—N1 | 106.9 (1) |
C14—C9—C10 | 117.13 (16) | O2—S2—N1 | 106.4 (1) |
C14—C9—C8 | 122.25 (14) | O3—S2—C16 | 108.3 (1) |
C10—C9—C8 | 120.52 (14) | O2—S2—C16 | 108.3 (1) |
C11—C10—C9 | 121.58 (16) | N1—S2—C16 | 106.5 (1) |
N1—C1—C2—C5 | 84.89 (18) | C19—C20—C21—C16 | −0.4 (4) |
N1—C1—C2—C3 | −28.83 (17) | C2—C1—N1—C4 | 43.59 (17) |
C1—C2—C3—N2 | 124.51 (14) | C2—C1—N1—S2 | −179.41 (12) |
C5—C2—C3—N2 | 4.15 (18) | C3—C4—N1—C1 | −40.24 (16) |
C1—C2—C3—C4 | 5.32 (18) | C3—C4—N1—S2 | −177.24 (11) |
C5—C2—C3—C4 | −115.04 (15) | C9—C8—N2—C6 | −96.95 (16) |
N2—C3—C4—N1 | −94.75 (15) | S1—C8—N2—C6 | 25.25 (15) |
C2—C3—C4—N1 | 20.26 (17) | C9—C8—N2—C3 | 141.25 (14) |
C1—C2—C5—C6 | −140.00 (16) | S1—C8—N2—C3 | −96.54 (13) |
C3—C2—C5—C6 | −25.83 (19) | C5—C6—N2—C8 | −162.77 (15) |
C2—C5—C6—N2 | 38.5 (2) | C7—C6—N2—C8 | −42.48 (19) |
C2—C5—C6—C7 | −77.72 (19) | C5—C6—N2—C3 | −36.79 (18) |
N2—C6—C7—S1 | 39.16 (19) | C7—C6—N2—C3 | 83.51 (17) |
C5—C6—C7—S1 | 152.93 (13) | C4—C3—N2—C8 | −101.22 (15) |
N2—C8—C9—C14 | −18.7 (2) | C2—C3—N2—C8 | 144.10 (13) |
S1—C8—C9—C14 | −139.26 (14) | C4—C3—N2—C6 | 134.88 (14) |
N2—C8—C9—C10 | 164.94 (15) | C2—C3—N2—C6 | 20.21 (17) |
S1—C8—C9—C10 | 44.39 (19) | C11—C12—O1—C15 | −166.82 (19) |
C14—C9—C10—C11 | 2.5 (3) | C13—C12—O1—C15 | 14.2 (3) |
C8—C9—C10—C11 | 178.99 (17) | C6—C7—S1—C8 | −21.16 (15) |
C9—C10—C11—C12 | 0.0 (3) | N2—C8—S1—C7 | −1.24 (13) |
C10—C11—C12—O1 | 178.36 (17) | C9—C8—S1—C7 | 124.11 (13) |
C10—C11—C12—C13 | −2.6 (3) | C1—N1—S2—O3 | −179.18 (14) |
O1—C12—C13—C14 | −178.35 (16) | C4—N1—S2—O3 | −47.46 (16) |
C11—C12—C13—C14 | 2.7 (3) | C1—N1—S2—O2 | 51.72 (16) |
C10—C9—C14—C13 | −2.4 (3) | C4—N1—S2—O2 | −176.55 (13) |
C8—C9—C14—C13 | −178.82 (15) | C1—N1—S2—C16 | −63.61 (15) |
C12—C13—C14—C9 | −0.2 (3) | C4—N1—S2—C16 | 68.11 (14) |
C21—C16—C17—C18 | 1.3 (3) | C21—C16—S2—O3 | 24.79 (18) |
S2—C16—C17—C18 | −174.25 (15) | C17—C16—S2—O3 | −159.64 (15) |
C16—C17—C18—C19 | −0.7 (3) | C21—C16—S2—O2 | 156.12 (16) |
C17—C18—C19—C20 | −0.3 (4) | C17—C16—S2—O2 | −28.32 (18) |
C18—C19—C20—C21 | 0.9 (4) | C21—C16—S2—N1 | −89.80 (17) |
C17—C16—C21—C20 | −0.7 (3) | C17—C16—S2—N1 | 85.77 (16) |
S2—C16—C21—C20 | 174.78 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
C18—H18···O1i | 0.93 | 2.56 | 3.437 (3) | 158 |
C3—H3···Cg1ii | 0.98 | 2.76 | 3.729 (2) | 172 |
Symmetry codes: (i) x−1, −y+1/2, z−1/2; (ii) −x+2, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C21H24N2O3S2 |
Mr | 416.54 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 14.5533 (8), 8.3319 (5), 16.8828 (9) |
β (°) | 98.923 (1) |
V (Å3) | 2022.4 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.29 |
Crystal size (mm) | 0.24 × 0.23 × 0.21 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22482, 4769, 3991 |
Rint | 0.020 |
(sin θ/λ)max (Å−1) | 0.661 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.137, 1.00 |
No. of reflections | 4769 |
No. of parameters | 254 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.46, −0.16 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), PLATON (Spek, 2003), SHELXL97 (Sheldrick, 2008) and PARST (Nardelli, 1995).
D—H···A | D—H | H···A | D···A | D—H···A |
C18—H18···O1i | 0.93 | 2.56 | 3.437 (3) | 158 |
C3—H3···Cg1ii | 0.98 | 2.76 | 3.729 (2) | 172 |
Symmetry codes: (i) x−1, −y+1/2, z−1/2; (ii) −x+2, y−1/2, −z+1/2. |
Acknowledgements
DG thanks the Council of Scientific and Industrial Research (CSIR), India, for a Senior Research Fellowship. The University Grants Commission (UGC–SAP) and Department of Science and Technology (DST–FIST), Government of India, are acknowledged by DV for providing facilities to the department.
References
Amal Raj, A., Raghunathan, R., Sridevi Kumari, M. R. & Raman, N. (2003). Bioorg. Med. Chem. 11, 407–409. Web of Science PubMed Google Scholar
Bruker (2001). SMART (Version 5.625/NT/2000) and SAINT (Version 6.28a). Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358. CrossRef CAS Web of Science Google Scholar
Kavitha, V., Gayathri, D. R., Velmurugan, D., Ravikumar, K. & Poornachandran, M. (2006). Acta Cryst. E62, o2146–o2148. Web of Science CSD CrossRef IUCr Journals Google Scholar
Nardelli, M. (1983). Acta Cryst. C39, 1141–1142. CrossRef CAS Web of Science IUCr Journals Google Scholar
Nardelli, M. (1995). J. Appl. Cryst. 28, 659. CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2003). J. Appl. Cryst. 36, 7–13. Web of Science CrossRef CAS IUCr Journals Google Scholar
Tsuru, D., Yoshimoto, T., Koriyama, N. & Furukawa, S. (1988). J. Biochem. 104, 580–586. CAS PubMed Web of Science Google Scholar
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Substituted pyrrolidine compounds have gained much importance as they are the structural elements of many alkaloids. The pyrrolidine derivatives have been found to possess antifungal activity against various pathogens (Amal Raj et al., 2003). Thiazolidine derivatives may act as potent inhibitors specific for Pro1yl Endopeptidase (Tsuru et al., 1988). In view of the above facts, we have undertaken the X-ray crystal structure determination of the title compound.
Bond lenghts and angles in the title molecule (Fig. 1) are comparable to those observed in a related structure (Kavitha et al., 2006). The sums of the bond angles around N1 (343.7°) and N2 (333.1°) indicate sp3-hybridization. The thiazolidine and the two pyrrolidine rings (N1/C1—C4, A, and C2/C3/N2/C5/C6, B) adopt envelope conformations. Atom N1 in ring A lies 0.597 (2) Å below the C1—C4 mean plane and atom C6 in ring B lies 0.563 (3) Å above the N2/C3/C2/C5 plane. In the thiazolidine ring, atom C6 deviates by 0.554 (3) Å from the plane of the rest of the atoms in the ring. The puckering parameters (Cremer & Pople, 1975) and the smallest displacement asymmetry parameters (Nardelli, 1983) are q2 = 0.406 (2) Å, ϕ = 187.3 (3)° and Δs(N1) = 6.5 (2)° for ring A, q2 = 0.372 (2) Å, ϕ = 137.0 (3)° and Δs(C6) = 4.2 (2)° for ring B, and q2 = 0.378 (2) Å, ϕ = 69.8 (3)° and Δs(C6) = 3.7 (2)° for the thiazolidine ring. The dihedral angle between the two aromatic rings is 68.4 (1)°.
The crystal packing is stabilized by C—H···O and C—H···π intermolecular interactions.