organic compounds
3′-Hydroxymethyl-1′-methyl-3′-nitro-4′-(o-tolyl)spiro[indoline-3,2′-pyrrolidin]-2-one
aDepartment of Physics, Ethiraj College for Women (Autonomous), Chennai 600 008, India, bDepartment of Physics, R.K.M. Vivekananda College (Autonomous), Chennai 600 004, India, cDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India, and dCentre for Advanced Studies in Crystallography, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: ksethusankar@yahoo.co.in
The title compound, C20H21N3O4, crystallizes with two molecules in the In both molecules, the pyrrolidine ring adopts an The is stabilized by intermolecular C—H⋯O, N—H⋯O and O—H⋯O hydrogen bonds.
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536810041917/bt5370sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810041917/bt5370Isup2.hkl
A mixture of (E) -2 nitro -3 o- tolyprop -2 en -1-ol(2 mmol,0.386 g) isatin (2 mmol,0.29 g) and sarcosine (2 mmol,0.18 g) in acetonitrile(8 mL) was refluxed for 5 h.After the completion of the reaction as indicated by TLC, the reaction mixture was concentrated and the resulting crude mass was diluted with water (10 ml) and extracted with ethyl acetate(3 X 10 ml).The combined organic layers were washed with brine and dried over anhydrous Na2 sO4. The organic layer was concentrated and the residue purified by
on Silica Gel (Acme 100–200 mesh),using ethyl acetate, hexanes (2:8) to afford final product as a olourless solid in 75% (0.55 g) yield.H atoms were placed in idealized positions and allowed to ride on their parent atoms, with C—H bond lengths fixed to 0.93Å (aromatic H), 0.96Å (methyl H), 0.97Å (methylene H), 0.98Å (methine H), 0.82Å (OH), 0.86Å (NH), and Uiso(H)=1.2 - 1.5 Ueq(C,N).
Substituted pyrrolidine compounds have gained much importance since they are the basic structural elements of many
and pharmacologically active compounds while molecules with the indole moiety posses anti-inflammatory and antibacterial properties In the title structure the contains a pair of molecules with almost identical geometry. In the two molecules the bond lengths and angles agree with each other. In the benzene ring of the indole system the endocyclic angles at C17 and C20 are contracted to 118.78 (14)° and 117.64 (16)° respectively while those at C18, C19 and C15 are expanded to 120.92 (16)°, 121.19 (19)° and 121.56 (16)°, respectively. The sum of bond angles around N2 [331.33°] and around N3 atom [359.90°] indicate sp3 and sp2 hybridizations respectively. Dihedral angle formed between pyrrolidine ring and benzene ring is 71.98 (10)° and the dihedral angle between oxindole moiety and benzene ring is 45.04 (8)°. In addition to van der Waals interactions there are intermolecular C—H···O , N—H···O and O—H···O hydrogen bonds.For ring puckering parameters, see: Cremer & Pople (1975).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The molecular structure of title compound showing 50% probability displacement ellipsoids. | |
Fig. 2. Packing diagram of the molecules viewed along the A axis. |
C20H21N3O4 | Z = 4 |
Mr = 367.40 | F(000) = 776 |
Triclinic, P1 | Dx = 1.345 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.8757 (18) Å | Cell parameters from 9209 reflections |
b = 13.625 (2) Å | θ = 1.6–28.7° |
c = 13.656 (2) Å | µ = 0.10 mm−1 |
α = 66.116 (8)° | T = 293 K |
β = 83.715 (8)° | Black, black |
γ = 78.991 (9)° | 0.30 × 0.26 × 0.20 mm |
V = 1814.9 (5) Å3 |
Bruker APEXII CCD area detector diffractometer | 5980 reflections with I > 2Σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.032 |
Graphite monochromator | θmax = 28.7°, θmin = 1.6° |
ω and φ scans | h = −14→14 |
32702 measured reflections | k = −18→18 |
9209 independent reflections | l = −18→18 |
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)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.131 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0564P)2 + 0.3018P] where P = (Fo2 + 2Fc2)/3 |
9209 reflections | (Δ/σ)max < 0.001 |
493 parameters | Δρmax = 0.21 e Å−3 |
0 restraints | Δρmin = −0.18 e Å−3 |
C20H21N3O4 | γ = 78.991 (9)° |
Mr = 367.40 | V = 1814.9 (5) Å3 |
Triclinic, P1 | Z = 4 |
a = 10.8757 (18) Å | Mo Kα radiation |
b = 13.625 (2) Å | µ = 0.10 mm−1 |
c = 13.656 (2) Å | T = 293 K |
α = 66.116 (8)° | 0.30 × 0.26 × 0.20 mm |
β = 83.715 (8)° |
Bruker APEXII CCD area detector diffractometer | 5980 reflections with I > 2Σ(I) |
32702 measured reflections | Rint = 0.032 |
9209 independent reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.131 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.21 e Å−3 |
9209 reflections | Δρmin = −0.18 e Å−3 |
493 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 | 0.9263 (2) | 0.78067 (16) | 0.12135 (15) | 0.0643 (5) | |
H1 | 0.8616 | 0.7728 | 0.0872 | 0.077* | |
C2 | 1.0088 (2) | 0.84968 (17) | 0.06218 (15) | 0.0736 (6) | |
H2 | 1.0002 | 0.8872 | −0.0113 | 0.088* | |
C3 | 1.1032 (2) | 0.86301 (17) | 0.11143 (15) | 0.0720 (6) | |
H3 | 1.1588 | 0.9100 | 0.0715 | 0.086* | |
C4 | 1.11632 (19) | 0.80676 (14) | 0.22033 (13) | 0.0546 (4) | |
H4 | 1.1808 | 0.8165 | 0.2533 | 0.066* | |
C5 | 1.03477 (15) | 0.73560 (12) | 0.28191 (11) | 0.0410 (3) | |
C6 | 0.93751 (16) | 0.72207 (13) | 0.23161 (13) | 0.0468 (4) | |
C7 | 0.84219 (18) | 0.65016 (16) | 0.29240 (15) | 0.0606 (5) | |
H7A | 0.8844 | 0.5780 | 0.3323 | 0.091* | |
H7B | 0.7877 | 0.6478 | 0.2429 | 0.091* | |
H7C | 0.7937 | 0.6788 | 0.3408 | 0.091* | |
C8 | 1.04939 (14) | 0.67486 (11) | 0.40162 (11) | 0.0366 (3) | |
H8 | 1.0178 | 0.6063 | 0.4220 | 0.044* | |
C9 | 1.18353 (15) | 0.64548 (13) | 0.43989 (12) | 0.0444 (4) | |
H9A | 1.2255 | 0.5784 | 0.4341 | 0.053* | |
H9B | 1.2317 | 0.7031 | 0.3988 | 0.053* | |
C10 | 1.28322 (17) | 0.61668 (16) | 0.60404 (15) | 0.0585 (5) | |
H10A | 1.3231 | 0.6799 | 0.5690 | 0.088* | |
H10B | 1.3381 | 0.5542 | 0.5998 | 0.088* | |
H10C | 1.2650 | 0.6054 | 0.6779 | 0.088* | |
C11 | 1.07282 (14) | 0.72425 (10) | 0.55415 (11) | 0.0338 (3) | |
C12 | 0.97488 (13) | 0.73354 (10) | 0.47288 (10) | 0.0327 (3) | |
C13 | 0.90941 (15) | 0.84833 (11) | 0.40830 (11) | 0.0394 (3) | |
H13A | 0.9647 | 0.8835 | 0.3487 | 0.047* | |
H13B | 0.8349 | 0.8433 | 0.3787 | 0.047* | |
C14 | 1.12455 (15) | 0.83425 (12) | 0.51371 (12) | 0.0410 (3) | |
C15 | 1.05989 (15) | 0.79408 (12) | 0.68790 (12) | 0.0417 (3) | |
C16 | 1.03173 (14) | 0.70849 (11) | 0.66827 (11) | 0.0356 (3) | |
C17 | 0.98993 (15) | 0.62187 (12) | 0.75116 (12) | 0.0421 (3) | |
H17 | 0.9736 | 0.5630 | 0.7395 | 0.051* | |
C18 | 0.97263 (17) | 0.62392 (14) | 0.85264 (12) | 0.0510 (4) | |
H18 | 0.9442 | 0.5659 | 0.9093 | 0.061* | |
C19 | 0.99680 (18) | 0.71000 (16) | 0.87043 (13) | 0.0586 (5) | |
H19 | 0.9835 | 0.7100 | 0.9389 | 0.070* | |
C20 | 1.04078 (18) | 0.79743 (16) | 0.78823 (14) | 0.0566 (5) | |
H20 | 1.0568 | 0.8562 | 0.8003 | 0.068* | |
N1 | 0.87235 (12) | 0.66862 (9) | 0.53968 (9) | 0.0371 (3) | |
N2 | 1.16682 (12) | 0.63274 (9) | 0.55149 (10) | 0.0398 (3) | |
N3 | 1.11411 (14) | 0.86594 (11) | 0.59629 (10) | 0.0490 (3) | |
H3A | 1.1382 | 0.9239 | 0.5928 | 0.059* | |
O1 | 0.89335 (12) | 0.57011 (8) | 0.57472 (9) | 0.0532 (3) | |
O2 | 0.77393 (11) | 0.72006 (9) | 0.55803 (10) | 0.0551 (3) | |
O3 | 0.87436 (11) | 0.91441 (8) | 0.46729 (8) | 0.0444 (3) | |
H3B | 0.8182 | 0.8912 | 0.5112 | 0.067* | |
O4 | 1.16951 (12) | 0.88053 (9) | 0.42497 (9) | 0.0547 (3) | |
C21 | 0.2916 (2) | 0.53247 (16) | 0.0557 (2) | 0.0802 (7) | |
H21 | 0.2397 | 0.5877 | 0.0049 | 0.096* | |
C22 | 0.3238 (3) | 0.54936 (18) | 0.1412 (2) | 0.0935 (8) | |
H22 | 0.2922 | 0.6143 | 0.1490 | 0.112* | |
C23 | 0.4028 (3) | 0.46985 (19) | 0.2153 (2) | 0.0886 (7) | |
H23 | 0.4263 | 0.4809 | 0.2731 | 0.106* | |
C24 | 0.4473 (2) | 0.37329 (16) | 0.20326 (17) | 0.0690 (5) | |
H24 | 0.5022 | 0.3202 | 0.2528 | 0.083* | |
C25 | 0.41187 (17) | 0.35323 (13) | 0.11889 (13) | 0.0531 (4) | |
C26 | 0.33357 (18) | 0.43623 (15) | 0.04218 (15) | 0.0604 (5) | |
C27 | 0.2939 (2) | 0.42400 (18) | −0.05373 (17) | 0.0790 (6) | |
H27A | 0.2390 | 0.4886 | −0.0951 | 0.118* | |
H27B | 0.2509 | 0.3626 | −0.0303 | 0.118* | |
H27C | 0.3666 | 0.4130 | −0.0971 | 0.118* | |
C28 | 0.45817 (16) | 0.24525 (13) | 0.10977 (12) | 0.0486 (4) | |
H28 | 0.4404 | 0.2556 | 0.0371 | 0.058* | |
C29 | 0.59902 (17) | 0.20421 (14) | 0.12277 (14) | 0.0554 (4) | |
H29A | 0.6458 | 0.2389 | 0.0567 | 0.066* | |
H29B | 0.6294 | 0.2175 | 0.1798 | 0.066* | |
C30 | 0.73427 (17) | 0.02658 (16) | 0.17691 (16) | 0.0635 (5) | |
H30A | 0.7592 | 0.0309 | 0.2402 | 0.095* | |
H30B | 0.7924 | 0.0560 | 0.1186 | 0.095* | |
H30C | 0.7337 | −0.0481 | 0.1900 | 0.095* | |
C31 | 0.51057 (15) | 0.05040 (12) | 0.23065 (11) | 0.0413 (3) | |
C32 | 0.39654 (15) | 0.14565 (12) | 0.18795 (12) | 0.0418 (3) | |
C33 | 0.30840 (17) | 0.16622 (13) | 0.27485 (13) | 0.0484 (4) | |
H33A | 0.3405 | 0.2161 | 0.2962 | 0.058* | |
H33B | 0.2271 | 0.2017 | 0.2446 | 0.058* | |
C34 | 0.54213 (17) | 0.03808 (14) | 0.34425 (12) | 0.0503 (4) | |
C35 | 0.52243 (17) | −0.13051 (14) | 0.35819 (15) | 0.0586 (5) | |
C36 | 0.49706 (16) | −0.06504 (13) | 0.25191 (14) | 0.0501 (4) | |
C37 | 0.47687 (19) | −0.11189 (17) | 0.18355 (19) | 0.0674 (5) | |
H37 | 0.4634 | −0.0696 | 0.1114 | 0.081* | |
C38 | 0.4771 (2) | −0.2231 (2) | 0.2245 (3) | 0.0873 (8) | |
H38 | 0.4622 | −0.2553 | 0.1794 | 0.105* | |
C39 | 0.4988 (2) | −0.28621 (19) | 0.3300 (3) | 0.0939 (9) | |
H39 | 0.4970 | −0.3605 | 0.3558 | 0.113* | |
C40 | 0.5232 (2) | −0.24172 (17) | 0.3991 (2) | 0.0799 (7) | |
H40 | 0.5396 | −0.2849 | 0.4706 | 0.096* | |
N4 | 0.31886 (15) | 0.10989 (13) | 0.12409 (13) | 0.0566 (4) | |
N5 | 0.55111 (16) | −0.06837 (12) | 0.40917 (11) | 0.0628 (4) | |
H5 | 0.5723 | −0.0947 | 0.4749 | 0.075* | |
N6 | 0.60896 (12) | 0.08871 (11) | 0.14952 (10) | 0.0466 (3) | |
O5 | 0.23358 (14) | 0.06078 (13) | 0.17280 (14) | 0.0789 (4) | |
O6 | 0.34711 (16) | 0.12759 (14) | 0.03015 (11) | 0.0842 (5) | |
O7 | 0.29185 (12) | 0.07180 (9) | 0.36754 (9) | 0.0552 (3) | |
H7 | 0.2518 | 0.0347 | 0.3528 | 0.083* | |
O8 | 0.55874 (14) | 0.11090 (11) | 0.36834 (9) | 0.0677 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0829 (15) | 0.0693 (12) | 0.0493 (10) | −0.0064 (11) | −0.0125 (10) | −0.0323 (9) |
C2 | 0.1127 (19) | 0.0718 (13) | 0.0344 (9) | −0.0196 (13) | −0.0010 (11) | −0.0173 (9) |
C3 | 0.1015 (17) | 0.0757 (13) | 0.0402 (10) | −0.0334 (12) | 0.0126 (10) | −0.0194 (9) |
C4 | 0.0684 (12) | 0.0590 (10) | 0.0405 (9) | −0.0226 (9) | 0.0074 (8) | −0.0205 (8) |
C5 | 0.0517 (10) | 0.0396 (8) | 0.0358 (7) | −0.0073 (7) | 0.0033 (7) | −0.0203 (6) |
C6 | 0.0548 (10) | 0.0475 (9) | 0.0445 (9) | −0.0053 (7) | −0.0011 (8) | −0.0261 (7) |
C7 | 0.0559 (12) | 0.0696 (12) | 0.0645 (11) | −0.0155 (9) | −0.0081 (9) | −0.0310 (10) |
C8 | 0.0442 (9) | 0.0317 (7) | 0.0368 (7) | −0.0077 (6) | 0.0025 (6) | −0.0167 (6) |
C9 | 0.0444 (9) | 0.0455 (8) | 0.0456 (8) | −0.0049 (7) | 0.0041 (7) | −0.0227 (7) |
C10 | 0.0453 (10) | 0.0712 (12) | 0.0550 (10) | −0.0050 (9) | −0.0069 (8) | −0.0215 (9) |
C11 | 0.0404 (8) | 0.0293 (7) | 0.0319 (7) | −0.0098 (6) | 0.0008 (6) | −0.0110 (5) |
C12 | 0.0395 (8) | 0.0281 (6) | 0.0312 (7) | −0.0087 (5) | 0.0026 (6) | −0.0118 (5) |
C13 | 0.0519 (9) | 0.0301 (7) | 0.0348 (7) | −0.0035 (6) | −0.0003 (7) | −0.0128 (6) |
C14 | 0.0481 (9) | 0.0360 (7) | 0.0407 (8) | −0.0160 (7) | −0.0003 (7) | −0.0134 (6) |
C15 | 0.0458 (9) | 0.0435 (8) | 0.0396 (8) | −0.0128 (7) | −0.0010 (7) | −0.0179 (7) |
C16 | 0.0392 (8) | 0.0348 (7) | 0.0328 (7) | −0.0072 (6) | −0.0019 (6) | −0.0126 (6) |
C17 | 0.0459 (9) | 0.0392 (8) | 0.0369 (8) | −0.0083 (7) | −0.0016 (7) | −0.0099 (6) |
C18 | 0.0516 (10) | 0.0591 (10) | 0.0323 (8) | −0.0101 (8) | 0.0005 (7) | −0.0080 (7) |
C19 | 0.0610 (12) | 0.0828 (13) | 0.0364 (9) | −0.0137 (10) | 0.0013 (8) | −0.0277 (9) |
C20 | 0.0658 (12) | 0.0698 (11) | 0.0518 (10) | −0.0194 (9) | −0.0012 (9) | −0.0383 (9) |
N1 | 0.0420 (7) | 0.0350 (6) | 0.0373 (6) | −0.0106 (5) | 0.0003 (5) | −0.0159 (5) |
N2 | 0.0396 (7) | 0.0377 (6) | 0.0397 (7) | −0.0034 (5) | −0.0016 (5) | −0.0140 (5) |
N3 | 0.0667 (10) | 0.0435 (7) | 0.0478 (8) | −0.0263 (7) | 0.0024 (7) | −0.0227 (6) |
O1 | 0.0643 (8) | 0.0329 (6) | 0.0619 (7) | −0.0176 (5) | 0.0112 (6) | −0.0172 (5) |
O2 | 0.0440 (7) | 0.0520 (7) | 0.0673 (8) | −0.0083 (5) | 0.0129 (6) | −0.0249 (6) |
O3 | 0.0569 (7) | 0.0308 (5) | 0.0453 (6) | −0.0079 (5) | 0.0104 (5) | −0.0175 (5) |
O4 | 0.0711 (9) | 0.0487 (6) | 0.0452 (6) | −0.0303 (6) | 0.0112 (6) | −0.0137 (5) |
C21 | 0.0712 (15) | 0.0457 (11) | 0.1031 (18) | −0.0113 (10) | −0.0016 (13) | −0.0078 (11) |
C22 | 0.099 (2) | 0.0495 (12) | 0.128 (2) | −0.0200 (12) | 0.0152 (17) | −0.0327 (14) |
C23 | 0.117 (2) | 0.0635 (14) | 0.0929 (17) | −0.0343 (14) | 0.0075 (16) | −0.0333 (13) |
C24 | 0.0852 (15) | 0.0542 (11) | 0.0640 (12) | −0.0193 (10) | −0.0023 (11) | −0.0161 (9) |
C25 | 0.0561 (11) | 0.0463 (9) | 0.0447 (9) | −0.0151 (8) | 0.0064 (8) | −0.0046 (7) |
C26 | 0.0514 (11) | 0.0495 (10) | 0.0607 (11) | −0.0142 (8) | 0.0055 (9) | −0.0011 (8) |
C27 | 0.0695 (14) | 0.0789 (14) | 0.0615 (12) | 0.0009 (11) | −0.0153 (11) | −0.0025 (11) |
C28 | 0.0518 (10) | 0.0515 (9) | 0.0320 (8) | −0.0074 (7) | −0.0005 (7) | −0.0064 (7) |
C29 | 0.0496 (11) | 0.0566 (10) | 0.0442 (9) | −0.0135 (8) | 0.0062 (8) | −0.0036 (8) |
C30 | 0.0425 (10) | 0.0709 (12) | 0.0600 (11) | −0.0038 (9) | 0.0063 (9) | −0.0128 (9) |
C31 | 0.0396 (9) | 0.0482 (8) | 0.0321 (7) | −0.0079 (7) | 0.0036 (6) | −0.0126 (6) |
C32 | 0.0416 (9) | 0.0473 (8) | 0.0363 (8) | −0.0065 (7) | −0.0003 (7) | −0.0168 (7) |
C33 | 0.0497 (10) | 0.0459 (9) | 0.0478 (9) | −0.0067 (7) | 0.0086 (8) | −0.0195 (7) |
C34 | 0.0542 (11) | 0.0562 (10) | 0.0318 (8) | −0.0052 (8) | 0.0016 (7) | −0.0110 (7) |
C35 | 0.0490 (11) | 0.0504 (10) | 0.0614 (11) | −0.0055 (8) | 0.0202 (9) | −0.0134 (9) |
C36 | 0.0391 (9) | 0.0504 (9) | 0.0562 (10) | −0.0062 (7) | 0.0120 (8) | −0.0201 (8) |
C37 | 0.0537 (12) | 0.0693 (12) | 0.0887 (15) | −0.0069 (9) | 0.0082 (10) | −0.0448 (11) |
C38 | 0.0610 (14) | 0.0717 (15) | 0.149 (3) | −0.0112 (11) | 0.0154 (15) | −0.0679 (17) |
C39 | 0.0608 (15) | 0.0543 (13) | 0.159 (3) | −0.0139 (11) | 0.0330 (17) | −0.0414 (17) |
C40 | 0.0603 (13) | 0.0513 (11) | 0.0947 (16) | −0.0041 (9) | 0.0278 (12) | −0.0044 (11) |
N4 | 0.0489 (9) | 0.0652 (9) | 0.0618 (10) | −0.0004 (7) | −0.0095 (8) | −0.0332 (8) |
N5 | 0.0741 (11) | 0.0574 (9) | 0.0347 (7) | 0.0013 (8) | 0.0026 (7) | −0.0017 (7) |
N6 | 0.0386 (8) | 0.0545 (8) | 0.0351 (7) | −0.0059 (6) | 0.0063 (6) | −0.0086 (6) |
O5 | 0.0528 (9) | 0.0960 (11) | 0.1116 (12) | −0.0257 (8) | 0.0061 (8) | −0.0613 (10) |
O6 | 0.0956 (12) | 0.1114 (12) | 0.0575 (9) | −0.0119 (9) | −0.0166 (8) | −0.0440 (8) |
O7 | 0.0605 (8) | 0.0497 (7) | 0.0561 (7) | −0.0195 (6) | 0.0224 (6) | −0.0230 (6) |
O8 | 0.0923 (11) | 0.0693 (8) | 0.0421 (7) | −0.0152 (7) | −0.0121 (7) | −0.0194 (6) |
C1—C2 | 1.375 (3) | C21—C22 | 1.371 (4) |
C1—C6 | 1.396 (2) | C21—C26 | 1.382 (3) |
C1—H1 | 0.9300 | C21—H21 | 0.9300 |
C2—C3 | 1.364 (3) | C22—C23 | 1.373 (4) |
C2—H2 | 0.9300 | C22—H22 | 0.9300 |
C3—C4 | 1.379 (2) | C23—C24 | 1.381 (3) |
C3—H3 | 0.9300 | C23—H23 | 0.9300 |
C4—C5 | 1.392 (2) | C24—C25 | 1.394 (3) |
C4—H4 | 0.9300 | C24—H24 | 0.9300 |
C5—C6 | 1.400 (2) | C25—C26 | 1.403 (3) |
C5—C8 | 1.514 (2) | C25—C28 | 1.512 (2) |
C6—C7 | 1.505 (3) | C26—C27 | 1.502 (3) |
C7—H7A | 0.9600 | C27—H27A | 0.9600 |
C7—H7B | 0.9600 | C27—H27B | 0.9600 |
C7—H7C | 0.9600 | C27—H27C | 0.9600 |
C8—C9 | 1.528 (2) | C28—C29 | 1.531 (2) |
C8—C12 | 1.5660 (18) | C28—C32 | 1.565 (2) |
C8—H8 | 0.9800 | C28—H28 | 0.9800 |
C9—N2 | 1.4570 (19) | C29—N6 | 1.449 (2) |
C9—H9A | 0.9700 | C29—H29A | 0.9700 |
C9—H9B | 0.9700 | C29—H29B | 0.9700 |
C10—N2 | 1.460 (2) | C30—N6 | 1.459 (2) |
C10—H10A | 0.9600 | C30—H30A | 0.9600 |
C10—H10B | 0.9600 | C30—H30B | 0.9600 |
C10—H10C | 0.9600 | C30—H30C | 0.9600 |
C11—N2 | 1.4638 (18) | C31—N6 | 1.460 (2) |
C11—C16 | 1.5125 (19) | C31—C36 | 1.513 (2) |
C11—C14 | 1.5657 (19) | C31—C34 | 1.561 (2) |
C11—C12 | 1.5735 (19) | C31—C32 | 1.579 (2) |
C12—C13 | 1.5251 (19) | C32—C33 | 1.524 (2) |
C12—N1 | 1.5358 (18) | C32—N4 | 1.541 (2) |
C13—O3 | 1.4121 (16) | C33—O7 | 1.4175 (19) |
C13—H13A | 0.9700 | C33—H33A | 0.9700 |
C13—H13B | 0.9700 | C33—H33B | 0.9700 |
C14—O4 | 1.2141 (18) | C34—O8 | 1.213 (2) |
C14—N3 | 1.3485 (19) | C34—N5 | 1.350 (2) |
C15—C20 | 1.381 (2) | C35—N5 | 1.387 (3) |
C15—C16 | 1.390 (2) | C35—C40 | 1.385 (3) |
C15—N3 | 1.392 (2) | C35—C36 | 1.387 (3) |
C16—C17 | 1.375 (2) | C36—C37 | 1.381 (3) |
C17—C18 | 1.389 (2) | C37—C38 | 1.386 (3) |
C17—H17 | 0.9300 | C37—H37 | 0.9300 |
C18—C19 | 1.366 (3) | C38—C39 | 1.366 (4) |
C18—H18 | 0.9300 | C38—H38 | 0.9300 |
C19—C20 | 1.387 (3) | C39—C40 | 1.381 (4) |
C19—H19 | 0.9300 | C39—H39 | 0.9300 |
C20—H20 | 0.9300 | C40—H40 | 0.9300 |
N1—O1 | 1.2121 (15) | N4—O6 | 1.221 (2) |
N1—O2 | 1.2235 (16) | N4—O5 | 1.221 (2) |
N3—H3A | 0.8600 | N5—H5 | 0.8600 |
O3—H3B | 0.8200 | O7—H7 | 0.8200 |
C2—C1—C6 | 121.46 (19) | C22—C21—C26 | 122.2 (2) |
C2—C1—H1 | 119.3 | C22—C21—H21 | 118.9 |
C6—C1—H1 | 119.3 | C26—C21—H21 | 118.9 |
C3—C2—C1 | 119.93 (18) | C23—C22—C21 | 119.6 (2) |
C3—C2—H2 | 120.0 | C23—C22—H22 | 120.2 |
C1—C2—H2 | 120.0 | C21—C22—H22 | 120.2 |
C2—C3—C4 | 120.0 (2) | C22—C23—C24 | 119.3 (2) |
C2—C3—H3 | 120.0 | C22—C23—H23 | 120.3 |
C4—C3—H3 | 120.0 | C24—C23—H23 | 120.3 |
C3—C4—C5 | 121.21 (18) | C23—C24—C25 | 121.8 (2) |
C3—C4—H4 | 119.4 | C23—C24—H24 | 119.1 |
C5—C4—H4 | 119.4 | C25—C24—H24 | 119.1 |
C4—C5—C6 | 118.91 (15) | C24—C25—C26 | 118.29 (18) |
C4—C5—C8 | 120.78 (14) | C24—C25—C28 | 120.69 (16) |
C6—C5—C8 | 120.31 (14) | C26—C25—C28 | 121.01 (17) |
C1—C6—C5 | 118.50 (17) | C21—C26—C25 | 118.7 (2) |
C1—C6—C7 | 118.91 (17) | C21—C26—C27 | 119.01 (19) |
C5—C6—C7 | 122.55 (15) | C25—C26—C27 | 122.33 (18) |
C6—C7—H7A | 109.5 | C26—C27—H27A | 109.5 |
C6—C7—H7B | 109.5 | C26—C27—H27B | 109.5 |
H7A—C7—H7B | 109.5 | H27A—C27—H27B | 109.5 |
C6—C7—H7C | 109.5 | C26—C27—H27C | 109.5 |
H7A—C7—H7C | 109.5 | H27A—C27—H27C | 109.5 |
H7B—C7—H7C | 109.5 | H27B—C27—H27C | 109.5 |
C5—C8—C9 | 115.73 (13) | C25—C28—C29 | 115.58 (15) |
C5—C8—C12 | 115.67 (11) | C25—C28—C32 | 117.28 (13) |
C9—C8—C12 | 104.24 (11) | C29—C28—C32 | 103.95 (12) |
C5—C8—H8 | 106.9 | C25—C28—H28 | 106.4 |
C9—C8—H8 | 106.9 | C29—C28—H28 | 106.4 |
C12—C8—H8 | 106.9 | C32—C28—H28 | 106.4 |
N2—C9—C8 | 103.39 (12) | N6—C29—C28 | 103.19 (14) |
N2—C9—H9A | 111.1 | N6—C29—H29A | 111.1 |
C8—C9—H9A | 111.1 | C28—C29—H29A | 111.1 |
N2—C9—H9B | 111.1 | N6—C29—H29B | 111.1 |
C8—C9—H9B | 111.1 | C28—C29—H29B | 111.1 |
H9A—C9—H9B | 109.0 | H29A—C29—H29B | 109.1 |
N2—C10—H10A | 109.5 | N6—C30—H30A | 109.5 |
N2—C10—H10B | 109.5 | N6—C30—H30B | 109.5 |
H10A—C10—H10B | 109.5 | H30A—C30—H30B | 109.5 |
N2—C10—H10C | 109.5 | N6—C30—H30C | 109.5 |
H10A—C10—H10C | 109.5 | H30A—C30—H30C | 109.5 |
H10B—C10—H10C | 109.5 | H30B—C30—H30C | 109.5 |
N2—C11—C16 | 110.87 (11) | N6—C31—C36 | 111.72 (13) |
N2—C11—C14 | 113.72 (12) | N6—C31—C34 | 113.15 (13) |
C16—C11—C14 | 101.40 (11) | C36—C31—C34 | 101.14 (13) |
N2—C11—C12 | 102.28 (10) | N6—C31—C32 | 102.16 (12) |
C16—C11—C12 | 120.25 (12) | C36—C31—C32 | 120.11 (14) |
C14—C11—C12 | 108.79 (11) | C34—C31—C32 | 108.97 (12) |
C13—C12—N1 | 106.79 (12) | C33—C32—N4 | 106.55 (13) |
C13—C12—C8 | 113.48 (11) | C33—C32—C28 | 115.10 (13) |
N1—C12—C8 | 109.38 (10) | N4—C32—C28 | 109.66 (12) |
C13—C12—C11 | 115.71 (11) | C33—C32—C31 | 114.93 (12) |
N1—C12—C11 | 106.58 (10) | N4—C32—C31 | 105.72 (12) |
C8—C12—C11 | 104.63 (11) | C28—C32—C31 | 104.48 (13) |
O3—C13—C12 | 114.57 (12) | O7—C33—C32 | 114.88 (13) |
O3—C13—H13A | 108.6 | O7—C33—H33A | 108.5 |
C12—C13—H13A | 108.6 | C32—C33—H33A | 108.5 |
O3—C13—H13B | 108.6 | O7—C33—H33B | 108.5 |
C12—C13—H13B | 108.6 | C32—C33—H33B | 108.5 |
H13A—C13—H13B | 107.6 | H33A—C33—H33B | 107.5 |
O4—C14—N3 | 126.40 (13) | O8—C34—N5 | 126.64 (16) |
O4—C14—C11 | 125.96 (13) | O8—C34—C31 | 125.86 (15) |
N3—C14—C11 | 107.60 (12) | N5—C34—C31 | 107.47 (15) |
C20—C15—C16 | 121.56 (15) | N5—C35—C40 | 128.5 (2) |
C20—C15—N3 | 128.19 (14) | N5—C35—C36 | 109.73 (15) |
C16—C15—N3 | 110.14 (12) | C40—C35—C36 | 121.7 (2) |
C17—C16—C15 | 119.84 (13) | C37—C36—C35 | 119.50 (17) |
C17—C16—C11 | 130.98 (13) | C37—C36—C31 | 131.20 (17) |
C15—C16—C11 | 108.58 (12) | C35—C36—C31 | 108.97 (15) |
C16—C17—C18 | 118.78 (15) | C36—C37—C38 | 118.8 (2) |
C16—C17—H17 | 120.6 | C36—C37—H37 | 120.6 |
C18—C17—H17 | 120.6 | C38—C37—H37 | 120.6 |
C19—C18—C17 | 120.92 (16) | C39—C38—C37 | 121.0 (2) |
C19—C18—H18 | 119.5 | C39—C38—H38 | 119.5 |
C17—C18—H18 | 119.5 | C37—C38—H38 | 119.5 |
C18—C19—C20 | 121.19 (15) | C38—C39—C40 | 121.2 (2) |
C18—C19—H19 | 119.4 | C38—C39—H39 | 119.4 |
C20—C19—H19 | 119.4 | C40—C39—H39 | 119.4 |
C15—C20—C19 | 117.64 (15) | C39—C40—C35 | 117.7 (2) |
C15—C20—H20 | 121.2 | C39—C40—H40 | 121.2 |
C19—C20—H20 | 121.2 | C35—C40—H40 | 121.2 |
O1—N1—O2 | 123.13 (13) | O6—N4—O5 | 123.20 (17) |
O1—N1—C12 | 119.39 (12) | O6—N4—C32 | 119.69 (16) |
O2—N1—C12 | 117.43 (11) | O5—N4—C32 | 117.05 (15) |
C9—N2—C10 | 114.40 (13) | C34—N5—C35 | 112.54 (15) |
C9—N2—C11 | 106.64 (11) | C34—N5—H5 | 123.7 |
C10—N2—C11 | 115.29 (12) | C35—N5—H5 | 123.7 |
C14—N3—C15 | 112.25 (12) | C29—N6—C31 | 106.72 (12) |
C14—N3—H3A | 123.9 | C29—N6—C30 | 114.73 (15) |
C15—N3—H3A | 123.9 | C31—N6—C30 | 115.07 (12) |
C13—O3—H3B | 109.5 | C33—O7—H7 | 109.5 |
C6—C1—C2—C3 | −0.8 (3) | C26—C21—C22—C23 | 1.7 (4) |
C1—C2—C3—C4 | 0.4 (3) | C21—C22—C23—C24 | −1.0 (4) |
C2—C3—C4—C5 | 0.2 (3) | C22—C23—C24—C25 | −1.4 (4) |
C3—C4—C5—C6 | −0.4 (3) | C23—C24—C25—C26 | 3.0 (3) |
C3—C4—C5—C8 | −179.53 (16) | C23—C24—C25—C28 | −177.8 (2) |
C2—C1—C6—C5 | 0.6 (3) | C22—C21—C26—C25 | 0.0 (3) |
C2—C1—C6—C7 | 178.36 (18) | C22—C21—C26—C27 | 179.9 (2) |
C4—C5—C6—C1 | 0.0 (2) | C24—C25—C26—C21 | −2.2 (3) |
C8—C5—C6—C1 | 179.15 (14) | C28—C25—C26—C21 | 178.53 (17) |
C4—C5—C6—C7 | −177.67 (16) | C24—C25—C26—C27 | 177.82 (19) |
C8—C5—C6—C7 | 1.5 (2) | C28—C25—C26—C27 | −1.4 (3) |
C4—C5—C8—C9 | −31.83 (19) | C24—C25—C28—C29 | −47.9 (2) |
C6—C5—C8—C9 | 149.07 (14) | C26—C25—C28—C29 | 131.35 (17) |
C4—C5—C8—C12 | 90.49 (18) | C24—C25—C28—C32 | 75.3 (2) |
C6—C5—C8—C12 | −88.62 (16) | C26—C25—C28—C32 | −105.46 (18) |
C5—C8—C9—N2 | 156.71 (11) | C25—C28—C29—N6 | 159.94 (13) |
C12—C8—C9—N2 | 28.50 (14) | C32—C28—C29—N6 | 29.97 (16) |
C5—C8—C12—C13 | −5.69 (18) | C25—C28—C32—C33 | −7.8 (2) |
C9—C8—C12—C13 | 122.55 (13) | C29—C28—C32—C33 | 121.12 (15) |
C5—C8—C12—N1 | 113.43 (13) | C25—C28—C32—N4 | 112.27 (16) |
C9—C8—C12—N1 | −118.33 (12) | C29—C28—C32—N4 | −118.79 (14) |
C5—C8—C12—C11 | −132.72 (13) | C25—C28—C32—C31 | −134.81 (14) |
C9—C8—C12—C11 | −4.48 (13) | C29—C28—C32—C31 | −5.87 (16) |
N2—C11—C12—C13 | −146.49 (12) | N6—C31—C32—C33 | −147.02 (13) |
C16—C11—C12—C13 | 90.22 (15) | C36—C31—C32—C33 | 88.74 (17) |
C14—C11—C12—C13 | −25.90 (16) | C34—C31—C32—C33 | −27.07 (18) |
N2—C11—C12—N1 | 94.96 (11) | N6—C31—C32—N4 | 95.78 (14) |
C16—C11—C12—N1 | −28.33 (15) | C36—C31—C32—N4 | −28.45 (18) |
C14—C11—C12—N1 | −144.44 (11) | C34—C31—C32—N4 | −144.27 (13) |
N2—C11—C12—C8 | −20.86 (13) | N6—C31—C32—C28 | −19.93 (14) |
C16—C11—C12—C8 | −144.14 (12) | C36—C31—C32—C28 | −144.16 (14) |
C14—C11—C12—C8 | 99.74 (12) | C34—C31—C32—C28 | 100.03 (14) |
N1—C12—C13—O3 | 77.63 (15) | N4—C32—C33—O7 | 81.97 (17) |
C8—C12—C13—O3 | −161.78 (12) | C28—C32—C33—O7 | −156.24 (14) |
C11—C12—C13—O3 | −40.80 (18) | C31—C32—C33—O7 | −34.8 (2) |
N2—C11—C14—O4 | 60.5 (2) | N6—C31—C34—O8 | 62.1 (2) |
C16—C11—C14—O4 | 179.52 (16) | C36—C31—C34—O8 | −178.23 (18) |
C12—C11—C14—O4 | −52.8 (2) | C32—C31—C34—O8 | −50.8 (2) |
N2—C11—C14—N3 | −117.40 (14) | N6—C31—C34—N5 | −116.05 (16) |
C16—C11—C14—N3 | 1.64 (16) | C36—C31—C34—N5 | 3.58 (17) |
C12—C11—C14—N3 | 129.34 (13) | C32—C31—C34—N5 | 131.05 (15) |
C20—C15—C16—C17 | −3.4 (2) | N5—C35—C36—C37 | 174.38 (16) |
N3—C15—C16—C17 | 172.98 (14) | C40—C35—C36—C37 | −2.6 (3) |
C20—C15—C16—C11 | −175.46 (15) | N5—C35—C36—C31 | 0.2 (2) |
N3—C15—C16—C11 | 0.97 (18) | C40—C35—C36—C31 | −176.80 (17) |
N2—C11—C16—C17 | −51.3 (2) | N6—C31—C36—C37 | −54.8 (2) |
C14—C11—C16—C17 | −172.36 (16) | C34—C31—C36—C37 | −175.49 (18) |
C12—C11—C16—C17 | 67.8 (2) | C32—C31—C36—C37 | 64.7 (2) |
N2—C11—C16—C15 | 119.53 (13) | N6—C31—C36—C35 | 118.41 (15) |
C14—C11—C16—C15 | −1.54 (15) | C34—C31—C36—C35 | −2.24 (17) |
C12—C11—C16—C15 | −121.41 (14) | C32—C31—C36—C35 | −122.05 (15) |
C15—C16—C17—C18 | 2.2 (2) | C35—C36—C37—C38 | 2.8 (3) |
C11—C16—C17—C18 | 172.19 (15) | C31—C36—C37—C38 | 175.49 (18) |
C16—C17—C18—C19 | −0.2 (3) | C36—C37—C38—C39 | −1.0 (3) |
C17—C18—C19—C20 | −0.8 (3) | C37—C38—C39—C40 | −1.1 (4) |
C16—C15—C20—C19 | 2.4 (3) | C38—C39—C40—C35 | 1.3 (3) |
N3—C15—C20—C19 | −173.28 (17) | N5—C35—C40—C39 | −175.85 (19) |
C18—C19—C20—C15 | −0.3 (3) | C36—C35—C40—C39 | 0.5 (3) |
C13—C12—N1—O1 | 159.88 (12) | C33—C32—N4—O6 | 152.14 (16) |
C8—C12—N1—O1 | 36.70 (16) | C28—C32—N4—O6 | 27.0 (2) |
C11—C12—N1—O1 | −75.88 (14) | C31—C32—N4—O6 | −85.15 (18) |
C13—C12—N1—O2 | −22.68 (15) | C33—C32—N4—O5 | −30.58 (19) |
C8—C12—N1—O2 | −145.86 (12) | C28—C32—N4—O5 | −155.76 (15) |
C11—C12—N1—O2 | 101.55 (14) | C31—C32—N4—O5 | 92.13 (17) |
C8—C9—N2—C10 | −173.13 (13) | O8—C34—N5—C35 | 178.02 (18) |
C8—C9—N2—C11 | −44.43 (14) | C31—C34—N5—C35 | −3.8 (2) |
C16—C11—N2—C9 | 170.06 (12) | C40—C35—N5—C34 | 179.13 (19) |
C14—C11—N2—C9 | −76.45 (14) | C36—C35—N5—C34 | 2.4 (2) |
C12—C11—N2—C9 | 40.67 (14) | C28—C29—N6—C31 | −45.54 (16) |
C16—C11—N2—C10 | −61.76 (16) | C28—C29—N6—C30 | −174.26 (13) |
C14—C11—N2—C10 | 51.73 (17) | C36—C31—N6—C29 | 170.46 (14) |
C12—C11—N2—C10 | 168.84 (13) | C34—C31—N6—C29 | −76.18 (16) |
O4—C14—N3—C15 | −179.06 (16) | C32—C31—N6—C29 | 40.80 (15) |
C11—C14—N3—C15 | −1.20 (18) | C36—C31—N6—C30 | −61.02 (19) |
C20—C15—N3—C14 | 176.30 (18) | C34—C31—N6—C30 | 52.34 (19) |
C16—C15—N3—C14 | 0.18 (19) | C32—C31—N6—C30 | 169.33 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O3i | 0.86 | 2.00 | 2.782 (2) | 151 |
O3—H3B···O7ii | 0.82 | 2.11 | 2.7769 (17) | 139 |
N5—H5···O8iii | 0.86 | 2.39 | 3.0064 (19) | 129 |
O7—H7···O4iv | 0.82 | 2.24 | 2.9356 (19) | 142 |
C8—H8···O1v | 0.98 | 2.40 | 3.164 (2) | 135 |
C33—H33A···O2ii | 0.97 | 2.59 | 3.209 (2) | 122 |
Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) −x+1, −y+1, −z+1; (iii) −x+1, −y, −z+1; (iv) x−1, y−1, z; (v) −x+2, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C20H21N3O4 |
Mr | 367.40 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 10.8757 (18), 13.625 (2), 13.656 (2) |
α, β, γ (°) | 66.116 (8), 83.715 (8), 78.991 (9) |
V (Å3) | 1814.9 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.30 × 0.26 × 0.20 |
Data collection | |
Diffractometer | Bruker APEXII CCD area detector |
Absorption correction | – |
No. of measured, independent and observed [I > 2Σ(I)] reflections | 32702, 9209, 5980 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.676 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.131, 1.03 |
No. of reflections | 9209 |
No. of parameters | 493 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.21, −0.18 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O3i | 0.86 | 2.00 | 2.782 (2) | 151 |
O3—H3B···O7ii | 0.82 | 2.11 | 2.7769 (17) | 139 |
N5—H5···O8iii | 0.86 | 2.39 | 3.0064 (19) | 129 |
O7—H7···O4iv | 0.82 | 2.24 | 2.9356 (19) | 142 |
C8—H8···O1v | 0.98 | 2.40 | 3.164 (2) | 135 |
C33—H33A···O2ii | 0.97 | 2.59 | 3.209 (2) | 122 |
Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) −x+1, −y+1, −z+1; (iii) −x+1, −y, −z+1; (iv) x−1, y−1, z; (v) −x+2, −y+1, −z+1. |
Acknowledgements
RG and KS thank the Technology Business Incubator (TBI), CAS in Crystallography and Biophysics, University of Madras, Chennai, and the Department of Science and Technology (DST) for the data collection.
References
Bruker (2007). SMART and SAINT. 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
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. 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. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
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Substituted pyrrolidine compounds have gained much importance since they are the basic structural elements of many alkaloids and pharmacologically active compounds while molecules with the indole moiety posses anti-inflammatory and antibacterial properties In the title structure the asymmetric unit contains a pair of molecules with almost identical geometry. In the two molecules the bond lengths and angles agree with each other. In the benzene ring of the indole system the endocyclic angles at C17 and C20 are contracted to 118.78 (14)° and 117.64 (16)° respectively while those at C18, C19 and C15 are expanded to 120.92 (16)°, 121.19 (19)° and 121.56 (16)°, respectively. The sum of bond angles around N2 [331.33°] and around N3 atom [359.90°] indicate sp3 and sp2 hybridizations respectively. Dihedral angle formed between pyrrolidine ring and benzene ring is 71.98 (10)° and the dihedral angle between oxindole moiety and benzene ring is 45.04 (8)°. In addition to van der Waals interactions there are intermolecular C—H···O , N—H···O and O—H···O hydrogen bonds.