Acta Cryst. (2010). E66, o952 [ doi:10.1107/S1600536810010500 ]
In the title compound, C28H23N3O4, the dihedral angle between the quinoline and indole ring systems is 29.30 (5)°. The pyrrolidine ring adopts a twist conformation. An intramolecular O-H
O hydrogen bond generates an S(6) ring motif. A weak intramolecular C3-H3O3 interaction is also observed. In the crystal, molecules are linked by two sets of N-HO hydrogen bonds, forming centrosymmetric dimers containing two R22(8) ring motifs. The dimers are linked via C-H![[pi]](/logos/entities/pi_rmgif.gif)
interactions.
A mixture of 3-cinnamoyl-4-hydroxyquinolin-2(1H)-one (0.5 mmol), isatin (0.5 mmol) and sarcosine (0.55 mmol) was refluxed in methanol until the disappearance of the starting materials as evidenced by the TLC. After completion of the reaction, the solvent was removed in vacuo and the residue was chromatographed on silica gel using hexane-ethyl acetate mixture (7:3) as eluent to give the title compound. The compound was recrystallized in DMF-methanol (3:7 v/v).
N- and O-bound H atoms were located in a difference map and refined isotropically. C-bound H atoms were positioned geometrically (C–H = 0.93–0.98 Å) and allowed to ride on their parent atoms, with Uiso(H) = 1.5Ueq(C) for methyl H and 1.2Ueq(C) for other H atoms.
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); 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).
![[Figure 1]](./ci5061fig1thm.gif)
| Fig. 1. The molecular structure of the title compound, showing the atomic numbering and displacement ellipsoids drawn at the 50% probability level. The dashed line indicates a hydrogen bond. |
![[Figure 2]](./ci5061fig2thm.gif)
| Fig. 2. The crystal packing of the title compound. H atoms not involved in hydrogen bonding (dashed lines) have been omitted for clarity. |
| C28H23N3O4 | Z = 2 |
| Mr = 465.49 | F(000) = 488 |
| Triclinic, P1 | Dx = 1.328 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 9.6918 (3) Å | Cell parameters from 1865 reflections |
| b = 11.0258 (3) Å | θ = 1.7–28.4° |
| c = 12.9663 (4) Å | µ = 0.09 mm−1 |
| α = 69.111 (1)° | T = 293 K |
| β = 72.044 (2)° | Block, colourless |
| γ = 66.410 (1)° | 0.20 × 0.20 × 0.20 mm |
| V = 1163.93 (6) Å3 |
| Bruker SMART APEXII area-detector diffractometer | 5795 independent reflections |
| Radiation source: fine-focus sealed tube | 4635 reflections with I > 2σ(I) |
| graphite | Rint = 0.023 |
| ω and φ scans | θmax = 28.4°, θmin = 1.7° |
| Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −12→12 |
| Tmin = 0.982, Tmax = 0.982 | k = −14→14 |
| 21655 measured reflections | l = −17→17 |
| 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)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.119 | H atoms treated by a mixture of independent and constrained refinement |
| S = 1.03 | w = 1/[σ2(Fo2) + (0.0596P)2 + 0.2023P] where P = (Fo2 + 2Fc2)/3 |
| 5795 reflections | (Δ/σ)max = 0.008 |
| 329 parameters | Δρmax = 0.22 e Å−3 |
| 0 restraints | Δρmin = −0.19 e Å−3 |
| C28H23N3O4 | γ = 66.410 (1)° |
| Mr = 465.49 | V = 1163.93 (6) Å3 |
| Triclinic, P1 | Z = 2 |
| a = 9.6918 (3) Å | Mo Kα radiation |
| b = 11.0258 (3) Å | µ = 0.09 mm−1 |
| c = 12.9663 (4) Å | T = 293 K |
| α = 69.111 (1)° | 0.20 × 0.20 × 0.20 mm |
| β = 72.044 (2)° |
| Bruker SMART APEXII area-detector diffractometer | 5795 independent reflections |
| Absorption correction: multi-scan (SADABS; Bruker, 2008) | 4635 reflections with I > 2σ(I) |
| Tmin = 0.982, Tmax = 0.982 | Rint = 0.023 |
| 21655 measured reflections | θmax = 28.4° |
| R[F2 > 2σ(F2)] = 0.040 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.119 | Δρmax = 0.22 e Å−3 |
| S = 1.03 | Δρmin = −0.19 e Å−3 |
| 5795 reflections | Absolute structure: ? |
| 329 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
| O1 | −0.12393 (11) | 0.84110 (9) | 0.20477 (8) | 0.0513 (2) | |
| O2 | 0.31591 (12) | 0.88012 (10) | 0.35337 (8) | 0.0540 (2) | |
| O3 | 0.17428 (11) | 0.93755 (10) | 0.06203 (7) | 0.0489 (2) | |
| O4 | 0.43677 (12) | 1.06028 (12) | 0.24273 (9) | 0.0577 (3) | |
| N1 | −0.11028 (12) | 0.89412 (11) | 0.41897 (8) | 0.0438 (2) | |
| C2 | −0.03598 (13) | 0.94481 (12) | 0.30309 (9) | 0.0377 (2) | |
| C3 | 0.13212 (13) | 0.83758 (11) | 0.29618 (9) | 0.0362 (2) | |
| H3 | 0.1534 | 0.7989 | 0.2334 | 0.043* | |
| C4 | 0.12577 (14) | 0.72173 (12) | 0.40670 (9) | 0.0398 (3) | |
| H4 | 0.1635 | 0.7380 | 0.4609 | 0.048* | |
| C5 | −0.04598 (15) | 0.74471 (13) | 0.44758 (10) | 0.0451 (3) | |
| H5A | −0.0828 | 0.7067 | 0.4086 | 0.054* | |
| H5B | −0.0702 | 0.7047 | 0.5280 | 0.054* | |
| C6 | −0.27726 (17) | 0.95032 (17) | 0.44161 (13) | 0.0608 (4) | |
| H6A | −0.3175 | 0.9223 | 0.3981 | 0.091* | |
| H6B | −0.3085 | 1.0488 | 0.4214 | 0.091* | |
| H6C | −0.3159 | 0.9170 | 0.5202 | 0.091* | |
| C7 | −0.10803 (14) | 0.94192 (12) | 0.21255 (9) | 0.0405 (3) | |
| N8 | −0.15228 (13) | 1.07050 (11) | 0.14433 (9) | 0.0465 (3) | |
| C9 | −0.11390 (14) | 1.16162 (12) | 0.17404 (10) | 0.0437 (3) | |
| C10 | −0.13151 (19) | 1.29824 (14) | 0.12047 (13) | 0.0604 (4) | |
| H10 | −0.1705 | 1.3416 | 0.0546 | 0.072* | |
| C11 | −0.0888 (2) | 1.36838 (15) | 0.16859 (15) | 0.0669 (4) | |
| H11 | −0.0970 | 1.4600 | 0.1332 | 0.080* | |
| C12 | −0.03449 (19) | 1.30537 (14) | 0.26777 (14) | 0.0594 (4) | |
| H12 | −0.0103 | 1.3559 | 0.2997 | 0.071* | |
| C13 | −0.01539 (15) | 1.16707 (13) | 0.32065 (11) | 0.0480 (3) | |
| H13 | 0.0216 | 1.1243 | 0.3874 | 0.058* | |
| C14 | −0.05276 (14) | 1.09499 (12) | 0.27148 (9) | 0.0395 (2) | |
| C15 | 0.25320 (13) | 0.90191 (11) | 0.27531 (9) | 0.0378 (2) | |
| C16 | 0.29296 (13) | 0.99495 (11) | 0.16590 (9) | 0.0363 (2) | |
| C17 | 0.24039 (13) | 1.01026 (11) | 0.06679 (9) | 0.0377 (2) | |
| N18 | 0.26902 (12) | 1.11132 (10) | −0.02685 (8) | 0.0419 (2) | |
| C19 | 0.34942 (13) | 1.19400 (12) | −0.03571 (10) | 0.0408 (3) | |
| C20 | 0.37500 (16) | 1.29242 (13) | −0.13735 (12) | 0.0515 (3) | |
| H20 | 0.3361 | 1.3035 | −0.1986 | 0.062* | |
| C21 | 0.45814 (18) | 1.37192 (15) | −0.14509 (13) | 0.0597 (4) | |
| H21 | 0.4756 | 1.4372 | −0.2122 | 0.072* | |
| C22 | 0.51668 (19) | 1.35655 (16) | −0.05436 (14) | 0.0624 (4) | |
| H22 | 0.5725 | 1.4117 | −0.0613 | 0.075* | |
| C23 | 0.49284 (16) | 1.26065 (15) | 0.04533 (13) | 0.0533 (3) | |
| H23 | 0.5326 | 1.2506 | 0.1058 | 0.064* | |
| C24 | 0.40805 (13) | 1.17747 (12) | 0.05590 (10) | 0.0412 (3) | |
| C25 | 0.37906 (13) | 1.07426 (12) | 0.15761 (10) | 0.0403 (3) | |
| C26 | 0.22252 (15) | 0.58092 (12) | 0.38987 (10) | 0.0435 (3) | |
| C27 | 0.33649 (18) | 0.49550 (14) | 0.45126 (13) | 0.0590 (4) | |
| H27 | 0.3503 | 0.5229 | 0.5064 | 0.071* | |
| C28 | 0.4310 (2) | 0.36850 (16) | 0.43128 (17) | 0.0739 (5) | |
| H28 | 0.5078 | 0.3124 | 0.4726 | 0.089* | |
| C29 | 0.4112 (2) | 0.32639 (15) | 0.35130 (16) | 0.0695 (4) | |
| H29 | 0.4755 | 0.2426 | 0.3373 | 0.083* | |
| C30 | 0.29633 (18) | 0.40778 (15) | 0.29184 (14) | 0.0594 (4) | |
| H30 | 0.2814 | 0.3783 | 0.2385 | 0.071* | |
| C31 | 0.20241 (16) | 0.53399 (13) | 0.31095 (11) | 0.0492 (3) | |
| H31 | 0.1245 | 0.5883 | 0.2703 | 0.059* | |
| H4A | 0.405 (3) | 0.985 (2) | 0.301 (2) | 0.106 (7)* | |
| H8 | −0.1719 (19) | 1.0831 (17) | 0.0782 (15) | 0.065 (5)* | |
| H18 | 0.2265 (18) | 1.1249 (15) | −0.0844 (14) | 0.054 (4)* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| O1 | 0.0677 (6) | 0.0516 (5) | 0.0457 (5) | −0.0282 (4) | −0.0212 (4) | −0.0070 (4) |
| O2 | 0.0656 (6) | 0.0651 (6) | 0.0408 (5) | −0.0325 (5) | −0.0224 (4) | −0.0019 (4) |
| O3 | 0.0688 (6) | 0.0569 (5) | 0.0340 (4) | −0.0363 (5) | −0.0133 (4) | −0.0061 (4) |
| O4 | 0.0679 (6) | 0.0729 (7) | 0.0496 (5) | −0.0398 (5) | −0.0200 (5) | −0.0094 (5) |
| N1 | 0.0470 (6) | 0.0469 (6) | 0.0327 (5) | −0.0145 (4) | −0.0058 (4) | −0.0078 (4) |
| C2 | 0.0430 (6) | 0.0406 (6) | 0.0306 (5) | −0.0140 (5) | −0.0105 (4) | −0.0075 (4) |
| C3 | 0.0437 (6) | 0.0344 (5) | 0.0303 (5) | −0.0128 (4) | −0.0101 (4) | −0.0060 (4) |
| C4 | 0.0495 (6) | 0.0391 (6) | 0.0311 (5) | −0.0170 (5) | −0.0125 (4) | −0.0029 (4) |
| C5 | 0.0527 (7) | 0.0478 (6) | 0.0328 (5) | −0.0211 (5) | −0.0077 (5) | −0.0036 (5) |
| C6 | 0.0495 (8) | 0.0672 (9) | 0.0528 (8) | −0.0153 (7) | −0.0008 (6) | −0.0134 (7) |
| C7 | 0.0427 (6) | 0.0456 (6) | 0.0346 (5) | −0.0155 (5) | −0.0099 (4) | −0.0088 (5) |
| N8 | 0.0553 (6) | 0.0470 (6) | 0.0392 (5) | −0.0141 (5) | −0.0214 (5) | −0.0065 (4) |
| C9 | 0.0465 (6) | 0.0416 (6) | 0.0411 (6) | −0.0093 (5) | −0.0138 (5) | −0.0102 (5) |
| C10 | 0.0755 (10) | 0.0439 (7) | 0.0574 (8) | −0.0109 (7) | −0.0311 (7) | −0.0028 (6) |
| C11 | 0.0842 (11) | 0.0372 (7) | 0.0783 (11) | −0.0144 (7) | −0.0298 (9) | −0.0087 (7) |
| C12 | 0.0701 (9) | 0.0455 (7) | 0.0703 (9) | −0.0146 (6) | −0.0219 (7) | −0.0222 (7) |
| C13 | 0.0535 (7) | 0.0459 (7) | 0.0469 (7) | −0.0106 (5) | −0.0150 (5) | −0.0169 (5) |
| C14 | 0.0420 (6) | 0.0387 (6) | 0.0355 (5) | −0.0098 (4) | −0.0089 (4) | −0.0100 (4) |
| C15 | 0.0423 (6) | 0.0371 (5) | 0.0345 (5) | −0.0112 (4) | −0.0100 (4) | −0.0097 (4) |
| C16 | 0.0380 (6) | 0.0364 (5) | 0.0350 (5) | −0.0115 (4) | −0.0076 (4) | −0.0102 (4) |
| C17 | 0.0409 (6) | 0.0386 (6) | 0.0331 (5) | −0.0138 (4) | −0.0059 (4) | −0.0093 (4) |
| N18 | 0.0495 (6) | 0.0438 (5) | 0.0344 (5) | −0.0199 (4) | −0.0101 (4) | −0.0058 (4) |
| C19 | 0.0386 (6) | 0.0362 (5) | 0.0431 (6) | −0.0114 (4) | −0.0028 (5) | −0.0110 (5) |
| C20 | 0.0535 (8) | 0.0456 (7) | 0.0473 (7) | −0.0178 (6) | −0.0058 (6) | −0.0046 (5) |
| C21 | 0.0603 (8) | 0.0479 (7) | 0.0601 (8) | −0.0249 (6) | 0.0001 (7) | −0.0038 (6) |
| C22 | 0.0618 (9) | 0.0573 (8) | 0.0727 (10) | −0.0348 (7) | −0.0006 (7) | −0.0157 (7) |
| C23 | 0.0503 (7) | 0.0564 (8) | 0.0598 (8) | −0.0265 (6) | −0.0044 (6) | −0.0179 (6) |
| C24 | 0.0374 (6) | 0.0399 (6) | 0.0462 (6) | −0.0137 (5) | −0.0034 (5) | −0.0142 (5) |
| C25 | 0.0389 (6) | 0.0436 (6) | 0.0408 (6) | −0.0134 (5) | −0.0077 (5) | −0.0142 (5) |
| C26 | 0.0488 (7) | 0.0377 (6) | 0.0413 (6) | −0.0192 (5) | −0.0094 (5) | −0.0012 (5) |
| C27 | 0.0668 (9) | 0.0463 (7) | 0.0622 (9) | −0.0177 (6) | −0.0276 (7) | −0.0006 (6) |
| C28 | 0.0695 (10) | 0.0471 (8) | 0.0905 (12) | −0.0093 (7) | −0.0319 (9) | 0.0010 (8) |
| C29 | 0.0670 (10) | 0.0402 (7) | 0.0916 (12) | −0.0172 (7) | −0.0074 (9) | −0.0137 (7) |
| C30 | 0.0652 (9) | 0.0512 (8) | 0.0671 (9) | −0.0294 (7) | −0.0005 (7) | −0.0204 (7) |
| C31 | 0.0530 (7) | 0.0451 (7) | 0.0511 (7) | −0.0209 (6) | −0.0090 (6) | −0.0102 (5) |
| O1—C7 | 1.2232 (15) | C12—H12 | 0.93 |
| O2—C15 | 1.2412 (14) | C13—C14 | 1.3797 (17) |
| O3—C17 | 1.2360 (14) | C13—H13 | 0.93 |
| O4—C25 | 1.3210 (15) | C15—C16 | 1.4679 (15) |
| O4—H4A | 0.99 (2) | C16—C25 | 1.3908 (16) |
| N1—C6 | 1.4572 (18) | C16—C17 | 1.4559 (15) |
| N1—C5 | 1.4577 (16) | C17—N18 | 1.3666 (15) |
| N1—C2 | 1.4645 (15) | N18—C19 | 1.3748 (16) |
| C2—C14 | 1.5092 (16) | N18—H18 | 0.900 (16) |
| C2—C7 | 1.5546 (16) | C19—C24 | 1.3950 (17) |
| C2—C3 | 1.5824 (16) | C19—C20 | 1.4035 (17) |
| C3—C15 | 1.5123 (16) | C20—C21 | 1.371 (2) |
| C3—C4 | 1.5466 (15) | C20—H20 | 0.93 |
| C3—H3 | 0.98 | C21—C22 | 1.388 (2) |
| C4—C26 | 1.5124 (17) | C21—H21 | 0.93 |
| C4—C5 | 1.5265 (18) | C22—C23 | 1.371 (2) |
| C4—H4 | 0.98 | C22—H22 | 0.93 |
| C5—H5A | 0.97 | C23—C24 | 1.4068 (18) |
| C5—H5B | 0.97 | C23—H23 | 0.93 |
| C6—H6A | 0.96 | C24—C25 | 1.4389 (17) |
| C6—H6B | 0.96 | C26—C27 | 1.3840 (18) |
| C6—H6C | 0.96 | C26—C31 | 1.3907 (18) |
| C7—N8 | 1.3526 (16) | C27—C28 | 1.397 (2) |
| N8—C9 | 1.3999 (17) | C27—H27 | 0.93 |
| N8—H8 | 0.886 (18) | C28—C29 | 1.366 (3) |
| C9—C10 | 1.3791 (18) | C28—H28 | 0.93 |
| C9—C14 | 1.3922 (16) | C29—C30 | 1.369 (2) |
| C10—C11 | 1.385 (2) | C29—H29 | 0.93 |
| C10—H10 | 0.93 | C30—C31 | 1.385 (2) |
| C11—C12 | 1.379 (2) | C30—H30 | 0.93 |
| C11—H11 | 0.93 | C31—H31 | 0.93 |
| C12—C13 | 1.3915 (19) | ||
| C25—O4—H4A | 102.8 (13) | C14—C13—H13 | 120.9 |
| C6—N1—C5 | 115.61 (11) | C12—C13—H13 | 120.9 |
| C6—N1—C2 | 115.01 (10) | C13—C14—C9 | 120.22 (11) |
| C5—N1—C2 | 106.72 (9) | C13—C14—C2 | 131.02 (10) |
| N1—C2—C14 | 113.47 (9) | C9—C14—C2 | 108.75 (10) |
| N1—C2—C7 | 113.94 (10) | O2—C15—C16 | 119.22 (11) |
| C14—C2—C7 | 101.31 (9) | O2—C15—C3 | 119.46 (10) |
| N1—C2—C3 | 102.76 (8) | C16—C15—C3 | 121.25 (9) |
| C14—C2—C3 | 117.72 (10) | C25—C16—C17 | 119.02 (10) |
| C7—C2—C3 | 107.99 (9) | C25—C16—C15 | 118.98 (10) |
| C15—C3—C4 | 114.61 (9) | C17—C16—C15 | 121.97 (10) |
| C15—C3—C2 | 112.81 (9) | O3—C17—N18 | 118.80 (10) |
| C4—C3—C2 | 105.06 (9) | O3—C17—C16 | 124.44 (10) |
| C15—C3—H3 | 108.0 | N18—C17—C16 | 116.76 (10) |
| C4—C3—H3 | 108.0 | N18—C19—C24 | 119.67 (11) |
| C2—C3—H3 | 108.0 | N18—C19—C20 | 119.99 (12) |
| C26—C4—C5 | 115.35 (10) | C24—C19—C20 | 120.32 (12) |
| C26—C4—C3 | 112.53 (9) | C21—C20—C19 | 119.04 (14) |
| C5—C4—C3 | 102.87 (9) | C21—C20—H20 | 120.5 |
| C26—C4—H4 | 108.6 | C19—C20—H20 | 120.5 |
| C5—C4—H4 | 108.6 | C20—C21—C22 | 121.10 (13) |
| C3—C4—H4 | 108.6 | C20—C21—H21 | 119.4 |
| N1—C5—C4 | 102.03 (10) | C22—C21—H21 | 119.4 |
| N1—C5—H5A | 111.4 | C23—C22—C21 | 120.47 (14) |
| C4—C5—H5A | 111.4 | C23—C22—H22 | 119.8 |
| N1—C5—H5B | 111.4 | C21—C22—H22 | 119.8 |
| C4—C5—H5B | 111.4 | C22—C23—C24 | 119.78 (14) |
| H5A—C5—H5B | 109.2 | C22—C23—H23 | 120.1 |
| N1—C6—H6A | 109.5 | C24—C23—H23 | 120.1 |
| N1—C6—H6B | 109.5 | C19—C24—C23 | 119.28 (12) |
| H6A—C6—H6B | 109.5 | C19—C24—C25 | 117.81 (11) |
| N1—C6—H6C | 109.5 | C23—C24—C25 | 122.91 (12) |
| H6A—C6—H6C | 109.5 | O4—C25—C16 | 121.98 (11) |
| H6B—C6—H6C | 109.5 | O4—C25—C24 | 116.49 (11) |
| O1—C7—N8 | 125.56 (11) | C16—C25—C24 | 121.52 (11) |
| O1—C7—C2 | 126.01 (10) | C27—C26—C31 | 117.78 (13) |
| N8—C7—C2 | 108.42 (10) | C27—C26—C4 | 120.84 (12) |
| C7—N8—C9 | 111.31 (10) | C31—C26—C4 | 121.36 (11) |
| C7—N8—H8 | 119.7 (11) | C26—C27—C28 | 120.68 (15) |
| C9—N8—H8 | 125.8 (11) | C26—C27—H27 | 119.7 |
| C10—C9—C14 | 121.77 (12) | C28—C27—H27 | 119.7 |
| C10—C9—N8 | 128.28 (12) | C29—C28—C27 | 120.29 (15) |
| C14—C9—N8 | 109.94 (10) | C29—C28—H28 | 119.9 |
| C9—C10—C11 | 117.42 (13) | C27—C28—H28 | 119.9 |
| C9—C10—H10 | 121.3 | C28—C29—C30 | 119.90 (15) |
| C11—C10—H10 | 121.3 | C28—C29—H29 | 120.0 |
| C12—C11—C10 | 121.45 (14) | C30—C29—H29 | 120.0 |
| C12—C11—H11 | 119.3 | C29—C30—C31 | 120.13 (15) |
| C10—C11—H11 | 119.3 | C29—C30—H30 | 119.9 |
| C11—C12—C13 | 120.76 (13) | C31—C30—H30 | 119.9 |
| C11—C12—H12 | 119.6 | C30—C31—C26 | 121.18 (13) |
| C13—C12—H12 | 119.6 | C30—C31—H31 | 119.4 |
| C14—C13—C12 | 118.27 (12) | C26—C31—H31 | 119.4 |
| C6—N1—C2—C14 | 67.51 (14) | C4—C3—C15—O2 | −14.08 (15) |
| C5—N1—C2—C14 | −162.83 (10) | C2—C3—C15—O2 | 106.11 (12) |
| C6—N1—C2—C7 | −47.74 (15) | C4—C3—C15—C16 | 168.83 (10) |
| C5—N1—C2—C7 | 81.91 (12) | C2—C3—C15—C16 | −70.98 (13) |
| C6—N1—C2—C3 | −164.29 (11) | O2—C15—C16—C25 | −10.92 (17) |
| C5—N1—C2—C3 | −34.63 (11) | C3—C15—C16—C25 | 166.18 (10) |
| N1—C2—C3—C15 | −116.48 (10) | O2—C15—C16—C17 | 171.31 (11) |
| C14—C2—C3—C15 | 9.00 (13) | C3—C15—C16—C17 | −11.59 (16) |
| C7—C2—C3—C15 | 122.80 (10) | C25—C16—C17—O3 | 173.82 (11) |
| N1—C2—C3—C4 | 9.05 (11) | C15—C16—C17—O3 | −8.41 (18) |
| C14—C2—C3—C4 | 134.53 (10) | C25—C16—C17—N18 | −5.28 (16) |
| C7—C2—C3—C4 | −111.68 (10) | C15—C16—C17—N18 | 172.49 (10) |
| C15—C3—C4—C26 | −93.05 (12) | O3—C17—N18—C19 | −175.84 (11) |
| C2—C3—C4—C26 | 142.55 (10) | C16—C17—N18—C19 | 3.31 (17) |
| C15—C3—C4—C5 | 142.18 (10) | C17—N18—C19—C24 | −0.20 (18) |
| C2—C3—C4—C5 | 17.79 (11) | C17—N18—C19—C20 | 178.42 (11) |
| C6—N1—C5—C4 | 176.30 (10) | N18—C19—C20—C21 | −178.69 (12) |
| C2—N1—C5—C4 | 46.99 (11) | C24—C19—C20—C21 | −0.08 (19) |
| C26—C4—C5—N1 | −161.42 (9) | C19—C20—C21—C22 | −0.1 (2) |
| C3—C4—C5—N1 | −38.53 (11) | C20—C21—C22—C23 | 0.2 (2) |
| N1—C2—C7—O1 | −56.11 (16) | C21—C22—C23—C24 | −0.2 (2) |
| C14—C2—C7—O1 | −178.34 (12) | N18—C19—C24—C23 | 178.72 (11) |
| C3—C2—C7—O1 | 57.35 (15) | C20—C19—C24—C23 | 0.10 (18) |
| N1—C2—C7—N8 | 123.09 (11) | N18—C19—C24—C25 | −0.94 (16) |
| C14—C2—C7—N8 | 0.87 (12) | C20—C19—C24—C25 | −179.56 (11) |
| C3—C2—C7—N8 | −123.44 (11) | C22—C23—C24—C19 | 0.0 (2) |
| O1—C7—N8—C9 | −178.42 (12) | C22—C23—C24—C25 | 179.67 (13) |
| C2—C7—N8—C9 | 2.37 (14) | C17—C16—C25—O4 | −176.49 (11) |
| C7—N8—C9—C10 | 175.61 (14) | C15—C16—C25—O4 | 5.67 (17) |
| C7—N8—C9—C14 | −5.01 (15) | C17—C16—C25—C24 | 4.40 (17) |
| C14—C9—C10—C11 | −1.3 (2) | C15—C16—C25—C24 | −173.44 (10) |
| N8—C9—C10—C11 | 178.02 (15) | C19—C24—C25—O4 | 179.58 (11) |
| C9—C10—C11—C12 | −1.6 (3) | C23—C24—C25—O4 | −0.07 (18) |
| C10—C11—C12—C13 | 2.4 (3) | C19—C24—C25—C16 | −1.26 (17) |
| C11—C12—C13—C14 | −0.2 (2) | C23—C24—C25—C16 | 179.10 (12) |
| C12—C13—C14—C9 | −2.6 (2) | C5—C4—C26—C27 | −118.66 (13) |
| C12—C13—C14—C2 | 175.60 (13) | C3—C4—C26—C27 | 123.74 (13) |
| C10—C9—C14—C13 | 3.5 (2) | C5—C4—C26—C31 | 62.68 (15) |
| N8—C9—C14—C13 | −175.95 (11) | C3—C4—C26—C31 | −54.92 (15) |
| C10—C9—C14—C2 | −175.11 (13) | C31—C26—C27—C28 | 2.1 (2) |
| N8—C9—C14—C2 | 5.46 (14) | C4—C26—C27—C28 | −176.58 (14) |
| N1—C2—C14—C13 | 55.29 (17) | C26—C27—C28—C29 | −0.6 (3) |
| C7—C2—C14—C13 | 177.84 (13) | C27—C28—C29—C30 | −1.2 (3) |
| C3—C2—C14—C13 | −64.72 (17) | C28—C29—C30—C31 | 1.4 (2) |
| N1—C2—C14—C9 | −126.32 (11) | C29—C30—C31—C26 | 0.2 (2) |
| C7—C2—C14—C9 | −3.78 (12) | C27—C26—C31—C30 | −2.0 (2) |
| C3—C2—C14—C9 | 113.66 (11) | C4—C26—C31—C30 | 176.74 (12) |
| Cg6 is the centroid of the C26–C31 ring. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| O4—H4A···O2 | 0.99 (2) | 1.56 (2) | 2.4840 (14) | 155 (2) |
| N8—H8···O3i | 0.89 (2) | 1.92 (2) | 2.7837 (13) | 165 (2) |
| N18—H18···O1i | 0.90 (2) | 1.95 (2) | 2.8497 (14) | 177 (2) |
| C3—H3···O3 | 0.98 | 2.21 | 2.7944 (13) | 117 |
| C21—H21···Cg6ii | 0.93 | 2.72 | 3.5360 (18) | 147 |
| Symmetry codes: (i) −x, −y+2, −z; (ii) −x+1, −y+2, −z. |
| Cg6 is the centroid of the C26–C31 ring. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| O4—H4A···O2 | 0.99 (2) | 1.56 (2) | 2.4840 (14) | 155 (2) |
| N8—H8···O3i | 0.89 (2) | 1.92 (2) | 2.7837 (13) | 165 (2) |
| N18—H18···O1i | 0.90 (2) | 1.95 (2) | 2.8497 (14) | 177 (2) |
| C3—H3···O3 | 0.98 | 2.21 | 2.7944 (13) | 117 |
| C21—H21···Cg6ii | 0.93 | 2.72 | 3.5360 (18) | 147 |
| Symmetry codes: (i) −x, −y+2, −z; (ii) −x+1, −y+2, −z. |
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Substituted pyrrolidine compounds possess antimicrobial and antifungal activities against various pathogens (Amalraj et al., 2003). Several optically active pyrrolidine compounds are used as intermediates in controlled asymmetric synthesis (Suzuki et al., 1994). The spiro- indole-pyrrolidine ring system is a frequently encountered structural motif in many biologically important and pharmacologically relevant alkaloids, e.g. vincrinstine, vinblastine and spirotypostatins (Cordell, 1981). Against this background and to ascertain the detailed information on its molecular conformation, the X-ray structure determination of the title compound has been carried out.
The pyrrolidine ring (N1/C2-C5) in the molecule adopts a twist conformation. The puckering parameters (Cremer & Pople, 1975) and the asymmetry parameters (Nardelli, 1983) for this ring are q2 = 0.426 (1) Å, φ = 335.5 (2)° and Δ2(C3) = 6.8 (2)°. The sum of the bond angles around atom N1 (337.3°) of the pyrrolidine ring indicates sp3 hybridization. The indole and quinoline ring systems are planar and keto atoms O1 and O3 deviate from the attached ring system by 0.011 (1) and -0.122 (1) Å, respectively. The dihedral angle between the indole and quinoline ring systems is 29.30 (5)°. An intramolecular O4—H4···O2 hydrogen bond generates an S(6) ring motif (Bernstein et al., 1995). A weak intramolecular C3—H3···O3 interaction is also observed.
The molecules at (x, y, z) and (-x, 2-y, -z) are linked by two sets of N8—H8···O3 and N18—H18···O1 hydrogen bonds to form a centrosymmetric dimer containing two R22(8) ring motifs (Fig. 2).