organic compounds
a]azuleno[5,6-b]quinolin-14(15H)-one
of 15-(2-chlorophenyl)-6b-hydroxy-17-methyl-6b,7,16,17-tetrahydro-7,14a-methanonaphtho[1′,8′:1,2,3]pyrrolo[3′,2′:8,8aCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: shirai2011@gmail.com
In the title compound, C34H25ClN2O2, the fused pyrrolidine ring adopts an with the N atom as the flap. The two adjacent cyclopentane rings also adopt envelope conformations. The mean plane of the pyrrolidine ring makes dihedral angles of 40.53 (10) and 80.23 (10)° with the mean planes of the cyclopentane rings. The dihedral angle between the mean planes of the cyclopentane rings is 46.71 (9)°. An intramolecular O—H⋯N hydrogen bond is observed. In the crystal, molecules are linked by C—H⋯O, C—H⋯N and C—H⋯π interactions, forming a layer parallel to (10-2).
Keywords: crystal structure; pyrrolidine derivative; hydrogen bonding.
CCDC reference: 1444162
1. Related literature
For biological activities of pyrrolidine derivatives, see: Aravindan et al. (2004); Gayathri et al. (2005); Seki et al. (2013); Li & Xu (2004); Arun et al. (2014); Govind et al. (2003); Nirmala et al. (2009); Sharma & Soman (2015); Bellina & Rossi (2006); Babu et al. (2012). For related structures, see: Savithri et al. (2014).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
CCDC reference: 1444162
https://doi.org/10.1107/S2056989015024767/is5437sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015024767/is5437Isup2.hkl
A mixture of (E)-2-(2-chlorobenzylidene)-3,4-dihydroacridin-1(2H)-one (1 mmol), acenaphthoquinone (1 mmol) and sarcosine (1.5 mmol) was heated to reflux in toluene (3 ml) for 10 h. After completion of the reaction as evident from TLC, the reaction mixture was extracted with ethyl acetate (2 × 20 ml), washed with water (2 × 10 ml), dried over anhydrous Na2SO4 and concentrated under reduced pressure, subjected to
using petroleum ether-AcOEt (5:1 v/v) as to obtain pure product. Single crystals suitable for X-ray diffraction were prepared by slow evaporation of a solution of the title compound in ethanol at room temperature.The hydrogen atoms were placed in calculated positions with C—H = 0.93–0.98 Å and O—H = 0.82 Å, and were refined in a riding model with Uiso(H) = 1.5Ueq(Cmethyl, O) or 1.2Ueq(C).
Pyrrolidine compounds are often encountered in pharmacologically relevant
(Aravindan et al., 2004). Optically active pyrrolidines have been used as intermediates, chiral ligands or auxiliaries in controlled (Savithri et al., 2014). Synthetic spiro pyrrolidine derivatives exhibit activity against the aldose reductase enzyme, which controls influenza virus (Gayathri et al., 2005) and also pyrrolidine compounds are reported to exhibit ischemic stroke (Seki et al., 2013), anti-inflammatory (Li & Xu, 2004), antitumor (Arun et al., 2014), antimicrobial, antifungal (Govind et al., 2003), antibiotic (Nirmala et al., 2009) and anti-diabetic (Sharma & Soman, 2015) activities and inhibition of retroviral [i.e., human immunodeficiency virus type 1 (HIV-1)], cellular DNA polymerases and protein kinases (Bellina & Rossi, 2006). They are also anticonvulsants, sphingosine-1-phosphate (S1P) receptor agonists, malic enzyme inhibitors, ketoamide-based cathepsin K inhibitors and human melanocortin-4 receptor agonists (Babu et al., 2012). In view of the above biological importance, the of the title compound was determined.In the title molecule, one cyclopentane ring I (C10–C12/C22/C23) is fused with the other cyclopentane ring II (C22–C24/C29/C30) of the acenaphthylene ring system (C22–C33). The pyrrolidine ring (C12/C14/C21/N2/C22) is fused with the cyclopentane ring I, and adopts an
with atom N2 as the flap atom deviating by 0.5765 (2) Å from the mean plane defined by the other atoms (C12/C14/C21/C22). The two cyclopentane rings I and II adopt envelope conformations with atoms C11 and C22 as the flap atoms, respectively, deviating by 0.7033 and 0.1765 Å from the mean plane. The mean plane of the pyrrolidine ring makes dihedral angles of 40.53 (10) and 80.23 (10)° with the mean planes of the cyclopentane rings I and II, respectively. The mean plane of the pyrrolidine ring makes dihedral angles of 82.04 (8) and 68.25 (9)° with the mean plane of the acenapthylene and phenyl (C8–C13) ring systems, respectively. The mean plane of the cyclopentane ring I makes a dihedral angle of 46.71 (9)° with the mean plane of the cyclopentane ring II. The mean plane of the cyclopentane ring makes dihedral angles of 47.85 (7) and 87.06 (9)° with the mean plane of the acenaphthylene ring system and the phenyl ring, respectively.In the crystal, a pair of C—H···N interactions (Table 1) show an R22(14) ring (Fig. 2). In addition, a C—H···O hydrogen bond links the symmetry-related molecules, forming a helical chain running along the b axis (Fig. 3). The two molecules are also held together by a C—H···π interaction (Fig. 4).
For biological activities of pyrrolidine derivatives, see: Aravindan et al. (2004); Gayathri et al. (2005); Seki et al. (2013); Li & Xu (2004); Arun et al. (2014); Govind et al. (2003); Nirmala et al. (2009); Sharma & Soman (2015); Bellina & Rossi (2006); Babu et al. (2012). For related structures, see: Savithri et al. (2014).
Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).Fig. 1. The molecular structure of the title compound, showing the atomic numbering and displacement ellipsoids drawn at 20% probability level. | |
Fig. 2. A packing diagram of the title compound viewed approximately down the c axis, showing the R22(14) ring motif formed by C—H···N hydrogen bonds (dashed lines). H-atoms not involved in hydrogen bonds have been excluded for clarity. | |
Fig. 3. A packing diagram of the title compound viewed approximately down the b axis. C—H···O hydrogen bonds are indicated by dashed lines. H atoms not involved in the hydrogen bonds have been excluded for clarity. | |
Fig. 4. A packing diagram of the title compound showing a C—H···π interaction (dashed line). |
C34H25ClN2O2 | F(000) = 1104 |
Mr = 529.01 | Dx = 1.302 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 11.1328 (2) Å | Cell parameters from 6713 reflections |
b = 13.0756 (3) Å | θ = 1.9–28.3° |
c = 19.0866 (4) Å | µ = 0.18 mm−1 |
β = 103.738 (1)° | T = 293 K |
V = 2698.91 (10) Å3 | Block, colourless |
Z = 4 | 0.30 × 0.25 × 0.20 mm |
Bruker SMART APEXII area-detector diffractometer | 4796 reflections with I > 2σ(I) |
ω and φ scans | Rint = 0.022 |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | θmax = 28.3°, θmin = 1.9° |
Tmin = 0.949, Tmax = 0.966 | h = −14→13 |
25834 measured reflections | k = −12→17 |
6713 independent reflections | l = −23→25 |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.049 | H-atom parameters constrained |
wR(F2) = 0.139 | w = 1/[σ2(Fo2) + (0.0597P)2 + 0.848P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max = 0.001 |
6713 reflections | Δρmax = 0.40 e Å−3 |
354 parameters | Δρmin = −0.58 e Å−3 |
C34H25ClN2O2 | V = 2698.91 (10) Å3 |
Mr = 529.01 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.1328 (2) Å | µ = 0.18 mm−1 |
b = 13.0756 (3) Å | T = 293 K |
c = 19.0866 (4) Å | 0.30 × 0.25 × 0.20 mm |
β = 103.738 (1)° |
Bruker SMART APEXII area-detector diffractometer | 6713 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 4796 reflections with I > 2σ(I) |
Tmin = 0.949, Tmax = 0.966 | Rint = 0.022 |
25834 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.139 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.40 e Å−3 |
6713 reflections | Δρmin = −0.58 e Å−3 |
354 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.48949 (15) | 0.35516 (13) | 0.16996 (8) | 0.0410 (4) | |
C2 | 0.40120 (18) | 0.42324 (15) | 0.18580 (11) | 0.0561 (5) | |
H2 | 0.3615 | 0.4701 | 0.1514 | 0.067* | |
C3 | 0.3743 (2) | 0.41996 (17) | 0.25204 (12) | 0.0673 (6) | |
H3 | 0.3162 | 0.4650 | 0.2624 | 0.081* | |
C4 | 0.4328 (2) | 0.34998 (18) | 0.30440 (11) | 0.0690 (6) | |
H4 | 0.4126 | 0.3488 | 0.3490 | 0.083* | |
C5 | 0.5182 (2) | 0.28387 (16) | 0.29125 (10) | 0.0587 (5) | |
H5 | 0.5564 | 0.2377 | 0.3266 | 0.070* | |
C6 | 0.54938 (16) | 0.28509 (13) | 0.22343 (8) | 0.0433 (4) | |
C7 | 0.63722 (15) | 0.21934 (13) | 0.20603 (8) | 0.0423 (4) | |
H7 | 0.6800 | 0.1734 | 0.2402 | 0.051* | |
C8 | 0.65996 (13) | 0.22281 (12) | 0.13869 (8) | 0.0352 (3) | |
C9 | 0.59359 (13) | 0.29450 (11) | 0.08764 (7) | 0.0327 (3) | |
C10 | 0.61453 (13) | 0.29544 (12) | 0.01248 (7) | 0.0338 (3) | |
H10 | 0.5419 | 0.3218 | −0.0224 | 0.041* | |
C11 | 0.64578 (13) | 0.18722 (12) | −0.00706 (8) | 0.0355 (3) | |
H11A | 0.6496 | 0.1826 | −0.0572 | 0.043* | |
H11B | 0.5861 | 0.1381 | 0.0021 | 0.043* | |
C12 | 0.77426 (13) | 0.17073 (11) | 0.04414 (8) | 0.0337 (3) | |
C13 | 0.75273 (14) | 0.15339 (12) | 0.11889 (8) | 0.0379 (3) | |
C14 | 0.86006 (14) | 0.09018 (12) | 0.02079 (9) | 0.0407 (4) | |
H14 | 0.8876 | 0.0415 | 0.0604 | 0.049* | |
C15 | 0.79749 (15) | 0.03145 (13) | −0.04622 (9) | 0.0449 (4) | |
C16 | 0.72850 (17) | −0.05621 (15) | −0.04343 (11) | 0.0560 (5) | |
C17 | 0.6726 (2) | −0.1110 (2) | −0.10403 (15) | 0.0814 (7) | |
H17 | 0.6286 | −0.1702 | −0.0997 | 0.098* | |
C18 | 0.6820 (3) | −0.0784 (2) | −0.17021 (16) | 0.0933 (9) | |
H18 | 0.6450 | −0.1156 | −0.2112 | 0.112* | |
C19 | 0.7460 (3) | 0.0090 (2) | −0.17633 (13) | 0.0830 (7) | |
H19 | 0.7506 | 0.0325 | −0.2216 | 0.100* | |
C20 | 0.8039 (2) | 0.06261 (16) | −0.11492 (11) | 0.0613 (5) | |
H20 | 0.8485 | 0.1212 | −0.1198 | 0.074* | |
C21 | 0.97124 (16) | 0.15380 (13) | 0.01258 (11) | 0.0514 (4) | |
H21A | 1.0350 | 0.1541 | 0.0572 | 0.062* | |
H21B | 1.0059 | 0.1266 | −0.0256 | 0.062* | |
C22 | 0.83991 (13) | 0.27695 (12) | 0.04290 (8) | 0.0368 (3) | |
C23 | 0.73303 (14) | 0.35448 (12) | 0.00747 (8) | 0.0356 (3) | |
C24 | 0.75807 (15) | 0.44880 (12) | 0.05354 (9) | 0.0401 (3) | |
C25 | 0.70176 (18) | 0.54227 (13) | 0.04710 (10) | 0.0505 (4) | |
H25 | 0.6400 | 0.5590 | 0.0066 | 0.061* | |
C26 | 0.7405 (2) | 0.61256 (15) | 0.10406 (12) | 0.0630 (5) | |
H26 | 0.7027 | 0.6764 | 0.1005 | 0.076* | |
C27 | 0.8304 (2) | 0.59131 (16) | 0.16375 (13) | 0.0667 (6) | |
H27 | 0.8525 | 0.6403 | 0.1998 | 0.080* | |
C28 | 0.89118 (18) | 0.49524 (15) | 0.17184 (11) | 0.0558 (5) | |
C29 | 0.85176 (15) | 0.42601 (13) | 0.11493 (9) | 0.0431 (4) | |
C30 | 0.90043 (15) | 0.32693 (13) | 0.11448 (9) | 0.0447 (4) | |
C31 | 0.99033 (18) | 0.29500 (17) | 0.17236 (11) | 0.0635 (5) | |
H31 | 1.0238 | 0.2297 | 0.1735 | 0.076* | |
C32 | 1.0311 (2) | 0.3634 (2) | 0.23032 (13) | 0.0821 (7) | |
H32 | 1.0919 | 0.3419 | 0.2699 | 0.098* | |
C33 | 0.9850 (2) | 0.4597 (2) | 0.23037 (13) | 0.0767 (7) | |
H33 | 1.0154 | 0.5026 | 0.2694 | 0.092* | |
C34 | 1.0217 (2) | 0.33226 (17) | −0.00314 (15) | 0.0733 (6) | |
H34A | 0.9861 | 0.3991 | −0.0134 | 0.110* | |
H34B | 1.0668 | 0.3148 | −0.0386 | 0.110* | |
H34C | 1.0768 | 0.3321 | 0.0439 | 0.110* | |
N1 | 0.51194 (12) | 0.35848 (10) | 0.10248 (7) | 0.0385 (3) | |
N2 | 0.92281 (13) | 0.25697 (11) | −0.00534 (8) | 0.0476 (3) | |
O1 | 0.80595 (12) | 0.08859 (10) | 0.16014 (7) | 0.0587 (4) | |
O2 | 0.72880 (12) | 0.37212 (10) | −0.06641 (6) | 0.0493 (3) | |
H2A | 0.7820 | 0.3376 | −0.0785 | 0.074* | |
Cl1 | 0.71190 (7) | −0.10108 (5) | 0.03928 (4) | 0.0892 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0437 (8) | 0.0415 (9) | 0.0410 (8) | 0.0001 (7) | 0.0162 (7) | −0.0055 (7) |
C2 | 0.0609 (11) | 0.0548 (11) | 0.0601 (11) | 0.0129 (9) | 0.0294 (9) | −0.0031 (9) |
C3 | 0.0781 (14) | 0.0662 (13) | 0.0708 (13) | 0.0107 (11) | 0.0438 (11) | −0.0124 (11) |
C4 | 0.0904 (16) | 0.0785 (15) | 0.0503 (11) | 0.0004 (12) | 0.0410 (11) | −0.0097 (10) |
C5 | 0.0772 (13) | 0.0654 (13) | 0.0383 (9) | −0.0001 (10) | 0.0233 (9) | −0.0040 (8) |
C6 | 0.0515 (9) | 0.0458 (10) | 0.0345 (8) | −0.0025 (7) | 0.0142 (7) | −0.0052 (7) |
C7 | 0.0483 (9) | 0.0441 (9) | 0.0333 (8) | 0.0027 (7) | 0.0076 (6) | 0.0019 (6) |
C8 | 0.0346 (7) | 0.0376 (8) | 0.0326 (7) | 0.0017 (6) | 0.0064 (5) | 0.0002 (6) |
C9 | 0.0305 (7) | 0.0355 (8) | 0.0322 (7) | 0.0022 (6) | 0.0076 (5) | 0.0000 (6) |
C10 | 0.0313 (7) | 0.0399 (8) | 0.0295 (7) | 0.0077 (6) | 0.0060 (5) | 0.0026 (6) |
C11 | 0.0327 (7) | 0.0399 (8) | 0.0343 (7) | 0.0039 (6) | 0.0086 (6) | −0.0018 (6) |
C12 | 0.0299 (7) | 0.0333 (8) | 0.0383 (7) | 0.0058 (6) | 0.0088 (6) | −0.0002 (6) |
C13 | 0.0348 (7) | 0.0388 (8) | 0.0386 (8) | 0.0044 (6) | 0.0058 (6) | 0.0030 (6) |
C14 | 0.0373 (8) | 0.0351 (8) | 0.0521 (9) | 0.0091 (6) | 0.0154 (7) | 0.0010 (7) |
C15 | 0.0416 (9) | 0.0392 (9) | 0.0589 (10) | 0.0088 (7) | 0.0216 (7) | −0.0060 (7) |
C16 | 0.0469 (10) | 0.0512 (11) | 0.0772 (13) | −0.0024 (8) | 0.0294 (9) | −0.0100 (9) |
C17 | 0.0648 (14) | 0.0767 (16) | 0.109 (2) | −0.0227 (12) | 0.0341 (13) | −0.0380 (14) |
C18 | 0.0830 (18) | 0.108 (2) | 0.0918 (19) | −0.0133 (16) | 0.0271 (15) | −0.0495 (17) |
C19 | 0.0958 (18) | 0.098 (2) | 0.0607 (13) | 0.0095 (16) | 0.0300 (12) | −0.0200 (13) |
C20 | 0.0762 (13) | 0.0543 (12) | 0.0616 (12) | 0.0054 (10) | 0.0324 (10) | −0.0078 (9) |
C21 | 0.0378 (9) | 0.0442 (10) | 0.0767 (12) | 0.0065 (7) | 0.0228 (8) | −0.0055 (9) |
C22 | 0.0321 (7) | 0.0342 (8) | 0.0452 (8) | 0.0039 (6) | 0.0116 (6) | 0.0004 (6) |
C23 | 0.0398 (8) | 0.0360 (8) | 0.0332 (7) | 0.0057 (6) | 0.0130 (6) | 0.0030 (6) |
C24 | 0.0458 (9) | 0.0339 (8) | 0.0448 (8) | 0.0008 (6) | 0.0194 (7) | 0.0023 (6) |
C25 | 0.0630 (11) | 0.0374 (9) | 0.0572 (10) | 0.0063 (8) | 0.0265 (9) | 0.0053 (8) |
C26 | 0.0865 (15) | 0.0347 (10) | 0.0769 (14) | 0.0018 (9) | 0.0372 (12) | −0.0027 (9) |
C27 | 0.0848 (15) | 0.0466 (12) | 0.0748 (14) | −0.0192 (11) | 0.0313 (12) | −0.0211 (10) |
C28 | 0.0586 (11) | 0.0490 (11) | 0.0603 (11) | −0.0160 (9) | 0.0153 (9) | −0.0131 (9) |
C29 | 0.0433 (9) | 0.0381 (9) | 0.0494 (9) | −0.0067 (7) | 0.0139 (7) | −0.0034 (7) |
C30 | 0.0347 (8) | 0.0431 (9) | 0.0536 (10) | −0.0012 (7) | 0.0049 (7) | −0.0025 (7) |
C31 | 0.0455 (10) | 0.0602 (12) | 0.0728 (13) | 0.0014 (9) | −0.0101 (9) | −0.0048 (10) |
C32 | 0.0606 (13) | 0.0888 (18) | 0.0769 (15) | −0.0046 (12) | −0.0230 (11) | −0.0104 (13) |
C33 | 0.0682 (14) | 0.0793 (17) | 0.0717 (14) | −0.0223 (12) | −0.0053 (11) | −0.0249 (12) |
C34 | 0.0599 (13) | 0.0560 (12) | 0.1193 (19) | −0.0101 (10) | 0.0518 (13) | −0.0053 (12) |
N1 | 0.0384 (7) | 0.0403 (7) | 0.0391 (7) | 0.0067 (5) | 0.0138 (5) | 0.0005 (5) |
N2 | 0.0405 (7) | 0.0404 (8) | 0.0696 (9) | 0.0018 (6) | 0.0285 (7) | −0.0013 (7) |
O1 | 0.0630 (8) | 0.0633 (8) | 0.0494 (7) | 0.0281 (7) | 0.0123 (6) | 0.0195 (6) |
O2 | 0.0607 (8) | 0.0549 (8) | 0.0384 (6) | 0.0110 (6) | 0.0235 (5) | 0.0085 (5) |
Cl1 | 0.1012 (5) | 0.0769 (4) | 0.1044 (5) | −0.0282 (3) | 0.0540 (4) | 0.0057 (3) |
C1—N1 | 1.3697 (19) | C17—H17 | 0.9300 |
C1—C2 | 1.411 (2) | C18—C19 | 1.366 (4) |
C1—C6 | 1.415 (2) | C18—H18 | 0.9300 |
C2—C3 | 1.367 (3) | C19—C20 | 1.386 (3) |
C2—H2 | 0.9300 | C19—H19 | 0.9300 |
C3—C4 | 1.397 (3) | C20—H20 | 0.9300 |
C3—H3 | 0.9300 | C21—N2 | 1.463 (2) |
C4—C5 | 1.352 (3) | C21—H21A | 0.9700 |
C4—H4 | 0.9300 | C21—H21B | 0.9700 |
C5—C6 | 1.418 (2) | C22—N2 | 1.4736 (19) |
C5—H5 | 0.9300 | C22—C30 | 1.520 (2) |
C6—C7 | 1.400 (2) | C22—C23 | 1.587 (2) |
C7—C8 | 1.368 (2) | C23—O2 | 1.4187 (17) |
C7—H7 | 0.9300 | C23—C24 | 1.502 (2) |
C8—C9 | 1.426 (2) | C24—C25 | 1.366 (2) |
C8—C13 | 1.490 (2) | C24—C29 | 1.403 (2) |
C9—N1 | 1.3148 (18) | C25—C26 | 1.411 (3) |
C9—C10 | 1.5071 (19) | C25—H25 | 0.9300 |
C10—C11 | 1.524 (2) | C26—C27 | 1.355 (3) |
C10—C23 | 1.551 (2) | C26—H26 | 0.9300 |
C10—H10 | 0.9800 | C27—C28 | 1.418 (3) |
C11—C12 | 1.544 (2) | C27—H27 | 0.9300 |
C11—H11A | 0.9700 | C28—C29 | 1.402 (2) |
C11—H11B | 0.9700 | C28—C33 | 1.414 (3) |
C12—C13 | 1.519 (2) | C29—C30 | 1.405 (2) |
C12—C14 | 1.556 (2) | C30—C31 | 1.368 (2) |
C12—C22 | 1.572 (2) | C31—C32 | 1.411 (3) |
C13—O1 | 1.2113 (19) | C31—H31 | 0.9300 |
C14—C15 | 1.512 (2) | C32—C33 | 1.359 (3) |
C14—C21 | 1.530 (2) | C32—H32 | 0.9300 |
C14—H14 | 0.9800 | C33—H33 | 0.9300 |
C15—C16 | 1.388 (3) | C34—N2 | 1.470 (2) |
C15—C20 | 1.391 (3) | C34—H34A | 0.9600 |
C16—C17 | 1.377 (3) | C34—H34B | 0.9600 |
C16—Cl1 | 1.735 (2) | C34—H34C | 0.9600 |
C17—C18 | 1.361 (4) | O2—H2A | 0.8200 |
N1—C1—C2 | 118.26 (15) | C18—C19—C20 | 119.9 (2) |
N1—C1—C6 | 122.61 (14) | C18—C19—H19 | 120.1 |
C2—C1—C6 | 119.12 (15) | C20—C19—H19 | 120.1 |
C3—C2—C1 | 119.67 (19) | C19—C20—C15 | 122.1 (2) |
C3—C2—H2 | 120.2 | C19—C20—H20 | 119.0 |
C1—C2—H2 | 120.2 | C15—C20—H20 | 119.0 |
C2—C3—C4 | 120.98 (18) | N2—C21—C14 | 105.25 (13) |
C2—C3—H3 | 119.5 | N2—C21—H21A | 110.7 |
C4—C3—H3 | 119.5 | C14—C21—H21A | 110.7 |
C5—C4—C3 | 121.00 (17) | N2—C21—H21B | 110.7 |
C5—C4—H4 | 119.5 | C14—C21—H21B | 110.7 |
C3—C4—H4 | 119.5 | H21A—C21—H21B | 108.8 |
C4—C5—C6 | 119.86 (19) | N2—C22—C30 | 115.35 (13) |
C4—C5—H5 | 120.1 | N2—C22—C12 | 102.42 (12) |
C6—C5—H5 | 120.1 | C30—C22—C12 | 118.34 (13) |
C7—C6—C1 | 117.54 (14) | N2—C22—C23 | 111.38 (12) |
C7—C6—C5 | 123.10 (16) | C30—C22—C23 | 103.64 (12) |
C1—C6—C5 | 119.36 (16) | C12—C22—C23 | 105.46 (11) |
C8—C7—C6 | 119.86 (15) | O2—C23—C24 | 113.97 (13) |
C8—C7—H7 | 120.1 | O2—C23—C10 | 108.31 (12) |
C6—C7—H7 | 120.1 | C24—C23—C10 | 114.53 (12) |
C7—C8—C9 | 118.84 (14) | O2—C23—C22 | 111.83 (12) |
C7—C8—C13 | 120.81 (14) | C24—C23—C22 | 105.01 (12) |
C9—C8—C13 | 120.35 (13) | C10—C23—C22 | 102.61 (11) |
N1—C9—C8 | 122.93 (13) | C25—C24—C29 | 119.96 (16) |
N1—C9—C10 | 118.10 (12) | C25—C24—C23 | 131.66 (16) |
C8—C9—C10 | 118.93 (12) | C29—C24—C23 | 108.20 (13) |
C9—C10—C11 | 108.73 (12) | C24—C25—C26 | 117.63 (18) |
C9—C10—C23 | 112.88 (12) | C24—C25—H25 | 121.2 |
C11—C10—C23 | 101.55 (11) | C26—C25—H25 | 121.2 |
C9—C10—H10 | 111.1 | C27—C26—C25 | 122.97 (19) |
C11—C10—H10 | 111.1 | C27—C26—H26 | 118.5 |
C23—C10—H10 | 111.1 | C25—C26—H26 | 118.5 |
C10—C11—C12 | 101.87 (11) | C26—C27—C28 | 120.76 (18) |
C10—C11—H11A | 111.4 | C26—C27—H27 | 119.6 |
C12—C11—H11A | 111.4 | C28—C27—H27 | 119.6 |
C10—C11—H11B | 111.4 | C29—C28—C33 | 115.85 (19) |
C12—C11—H11B | 111.4 | C29—C28—C27 | 115.74 (18) |
H11A—C11—H11B | 109.3 | C33—C28—C27 | 128.39 (19) |
C13—C12—C11 | 106.63 (11) | C28—C29—C24 | 122.93 (16) |
C13—C12—C14 | 114.36 (12) | C28—C29—C30 | 123.36 (17) |
C11—C12—C14 | 116.91 (12) | C24—C29—C30 | 113.70 (15) |
C13—C12—C22 | 108.88 (12) | C31—C30—C29 | 119.05 (17) |
C11—C12—C22 | 103.37 (11) | C31—C30—C22 | 132.67 (17) |
C14—C12—C22 | 105.93 (11) | C29—C30—C22 | 108.22 (14) |
O1—C13—C8 | 121.52 (14) | C30—C31—C32 | 118.5 (2) |
O1—C13—C12 | 123.58 (14) | C30—C31—H31 | 120.8 |
C8—C13—C12 | 114.89 (12) | C32—C31—H31 | 120.8 |
C15—C14—C21 | 114.25 (14) | C33—C32—C31 | 122.4 (2) |
C15—C14—C12 | 113.27 (13) | C33—C32—H32 | 118.8 |
C21—C14—C12 | 103.17 (12) | C31—C32—H32 | 118.8 |
C15—C14—H14 | 108.6 | C32—C33—C28 | 120.81 (19) |
C21—C14—H14 | 108.6 | C32—C33—H33 | 119.6 |
C12—C14—H14 | 108.6 | C28—C33—H33 | 119.6 |
C16—C15—C20 | 115.53 (17) | N2—C34—H34A | 109.5 |
C16—C15—C14 | 122.33 (16) | N2—C34—H34B | 109.5 |
C20—C15—C14 | 122.14 (17) | H34A—C34—H34B | 109.5 |
C17—C16—C15 | 122.8 (2) | N2—C34—H34C | 109.5 |
C17—C16—Cl1 | 117.64 (17) | H34A—C34—H34C | 109.5 |
C15—C16—Cl1 | 119.60 (15) | H34B—C34—H34C | 109.5 |
C18—C17—C16 | 119.9 (2) | C9—N1—C1 | 118.18 (13) |
C18—C17—H17 | 120.1 | C21—N2—C34 | 112.26 (14) |
C16—C17—H17 | 120.1 | C21—N2—C22 | 105.56 (13) |
C17—C18—C19 | 119.9 (2) | C34—N2—C22 | 116.07 (14) |
C17—C18—H18 | 120.1 | C23—O2—H2A | 109.5 |
C19—C18—H18 | 120.1 | ||
N1—C1—C2—C3 | 178.26 (18) | C13—C12—C22—C23 | −98.81 (13) |
C6—C1—C2—C3 | −0.5 (3) | C11—C12—C22—C23 | 14.28 (14) |
C1—C2—C3—C4 | −0.1 (3) | C14—C12—C22—C23 | 137.76 (12) |
C2—C3—C4—C5 | 0.4 (4) | C9—C10—C23—O2 | −166.16 (12) |
C3—C4—C5—C6 | 0.0 (3) | C11—C10—C23—O2 | 77.62 (13) |
N1—C1—C6—C7 | 1.8 (2) | C9—C10—C23—C24 | −37.74 (17) |
C2—C1—C6—C7 | −179.45 (16) | C11—C10—C23—C24 | −153.97 (12) |
N1—C1—C6—C5 | −177.84 (16) | C9—C10—C23—C22 | 75.45 (14) |
C2—C1—C6—C5 | 0.9 (3) | C11—C10—C23—C22 | −40.78 (13) |
C4—C5—C6—C7 | 179.71 (19) | N2—C22—C23—O2 | 10.48 (18) |
C4—C5—C6—C1 | −0.6 (3) | C30—C22—C23—O2 | 135.09 (13) |
C1—C6—C7—C8 | −1.6 (2) | C12—C22—C23—O2 | −99.88 (14) |
C5—C6—C7—C8 | 178.07 (17) | N2—C22—C23—C24 | −113.61 (13) |
C6—C7—C8—C9 | 0.4 (2) | C30—C22—C23—C24 | 11.00 (15) |
C6—C7—C8—C13 | −179.82 (15) | C12—C22—C23—C24 | 136.03 (12) |
C7—C8—C9—N1 | 0.7 (2) | N2—C22—C23—C10 | 126.36 (12) |
C13—C8—C9—N1 | −179.07 (14) | C30—C22—C23—C10 | −109.03 (13) |
C7—C8—C9—C10 | −177.45 (14) | C12—C22—C23—C10 | 16.00 (14) |
C13—C8—C9—C10 | 2.8 (2) | O2—C23—C24—C25 | 53.0 (2) |
N1—C9—C10—C11 | −147.13 (13) | C10—C23—C24—C25 | −72.5 (2) |
C8—C9—C10—C11 | 31.08 (18) | C22—C23—C24—C25 | 175.69 (16) |
N1—C9—C10—C23 | 101.00 (15) | O2—C23—C24—C29 | −131.95 (14) |
C8—C9—C10—C23 | −80.79 (17) | C10—C23—C24—C29 | 102.54 (15) |
C9—C10—C11—C12 | −68.47 (14) | C22—C23—C24—C29 | −9.23 (16) |
C23—C10—C11—C12 | 50.76 (13) | C29—C24—C25—C26 | −0.6 (2) |
C10—C11—C12—C13 | 74.78 (14) | C23—C24—C25—C26 | 173.99 (17) |
C10—C11—C12—C14 | −155.85 (12) | C24—C25—C26—C27 | 0.3 (3) |
C10—C11—C12—C22 | −39.94 (13) | C25—C26—C27—C28 | 0.1 (3) |
C7—C8—C13—O1 | 3.8 (2) | C26—C27—C28—C29 | −0.2 (3) |
C9—C8—C13—O1 | −176.44 (15) | C26—C27—C28—C33 | −179.0 (2) |
C7—C8—C13—C12 | −176.11 (14) | C33—C28—C29—C24 | 178.85 (18) |
C9—C8—C13—C12 | 3.6 (2) | C27—C28—C29—C24 | −0.2 (3) |
C11—C12—C13—O1 | 137.38 (16) | C33—C28—C29—C30 | 0.1 (3) |
C14—C12—C13—O1 | 6.6 (2) | C27—C28—C29—C30 | −178.96 (17) |
C22—C12—C13—O1 | −111.69 (17) | C25—C24—C29—C28 | 0.6 (3) |
C11—C12—C13—C8 | −42.68 (17) | C23—C24—C29—C28 | −175.18 (15) |
C14—C12—C13—C8 | −173.50 (13) | C25—C24—C29—C30 | 179.47 (15) |
C22—C12—C13—C8 | 68.25 (15) | C23—C24—C29—C30 | 3.71 (19) |
C13—C12—C14—C15 | 119.48 (15) | C28—C29—C30—C31 | 0.5 (3) |
C11—C12—C14—C15 | −6.12 (19) | C24—C29—C30—C31 | −178.42 (17) |
C22—C12—C14—C15 | −120.61 (14) | C28—C29—C30—C22 | −177.26 (16) |
C13—C12—C14—C21 | −116.48 (15) | C24—C29—C30—C22 | 3.85 (19) |
C11—C12—C14—C21 | 117.93 (15) | N2—C22—C30—C31 | −64.5 (3) |
C22—C12—C14—C21 | 3.44 (16) | C12—C22—C30—C31 | 57.3 (3) |
C21—C14—C15—C16 | 155.66 (16) | C23—C22—C30—C31 | 173.5 (2) |
C12—C14—C15—C16 | −86.58 (19) | N2—C22—C30—C29 | 112.83 (15) |
C21—C14—C15—C20 | −25.3 (2) | C12—C22—C30—C29 | −125.44 (14) |
C12—C14—C15—C20 | 92.51 (19) | C23—C22—C30—C29 | −9.17 (17) |
C20—C15—C16—C17 | 1.8 (3) | C29—C30—C31—C32 | −0.3 (3) |
C14—C15—C16—C17 | −179.07 (18) | C22—C30—C31—C32 | 176.8 (2) |
C20—C15—C16—Cl1 | −178.95 (14) | C30—C31—C32—C33 | −0.4 (4) |
C14—C15—C16—Cl1 | 0.2 (2) | C31—C32—C33—C28 | 1.0 (4) |
C15—C16—C17—C18 | −1.3 (4) | C29—C28—C33—C32 | −0.8 (3) |
Cl1—C16—C17—C18 | 179.4 (2) | C27—C28—C33—C32 | 178.1 (2) |
C16—C17—C18—C19 | −0.6 (4) | C8—C9—N1—C1 | −0.5 (2) |
C17—C18—C19—C20 | 1.8 (4) | C10—C9—N1—C1 | 177.65 (13) |
C18—C19—C20—C15 | −1.3 (4) | C2—C1—N1—C9 | −179.52 (16) |
C16—C15—C20—C19 | −0.5 (3) | C6—C1—N1—C9 | −0.8 (2) |
C14—C15—C20—C19 | −179.64 (19) | C14—C21—N2—C34 | 170.33 (16) |
C15—C14—C21—N2 | 96.03 (16) | C14—C21—N2—C22 | 42.96 (17) |
C12—C14—C21—N2 | −27.37 (17) | C30—C22—N2—C21 | 90.75 (16) |
C13—C12—C22—N2 | 144.56 (12) | C12—C22—N2—C21 | −39.21 (15) |
C11—C12—C22—N2 | −102.35 (13) | C23—C22—N2—C21 | −151.50 (14) |
C14—C12—C22—N2 | 21.13 (15) | C30—C22—N2—C34 | −34.3 (2) |
C13—C12—C22—C30 | 16.47 (17) | C12—C22—N2—C34 | −164.24 (16) |
C11—C12—C22—C30 | 129.56 (13) | C23—C22—N2—C34 | 83.47 (19) |
C14—C12—C22—C30 | −106.96 (15) |
Cg1 is the centroid of the N1/C1/C6–C9 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N2 | 0.82 | 2.12 | 2.664 (2) | 124 |
C25—H25···N1i | 0.93 | 2.59 | 3.503 (2) | 169 |
C33—H33···O1ii | 0.93 | 2.40 | 3.212 (3) | 146 |
C17—H17···Cg1iii | 0.93 | 2.73 | 3.553 (3) | 147 |
Symmetry codes: (i) −x+1, −y+1, −z; (ii) −x+2, y+1/2, −z+1/2; (iii) −x+1, −y, −z. |
Cg1 is the centroid of the N1/C1/C6–C9 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N2 | 0.82 | 2.12 | 2.664 (2) | 124 |
C25—H25···N1i | 0.93 | 2.59 | 3.503 (2) | 169 |
C33—H33···O1ii | 0.93 | 2.40 | 3.212 (3) | 146 |
C17—H17···Cg1iii | 0.93 | 2.73 | 3.553 (3) | 147 |
Symmetry codes: (i) −x+1, −y+1, −z; (ii) −x+2, y+1/2, −z+1/2; (iii) −x+1, −y, −z. |
Acknowledgements
The authors thank the TBI X-ray facility, CAS in Crystallography and Biophysics, University of Madras, India, for the data collection.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Pyrrolidine compounds are often encountered in pharmacologically relevant alkaloids (Aravindan et al., 2004). Optically active pyrrolidines have been used as intermediates, chiral ligands or auxiliaries in controlled asymmetric synthesis (Savithri et al., 2014). Synthetic spiro pyrrolidine derivatives exhibit activity against the aldose reductase enzyme, which controls influenza virus (Gayathri et al., 2005) and also pyrrolidine compounds are reported to exhibit ischemic stroke (Seki et al., 2013), anti-inflammatory (Li & Xu, 2004), antitumor (Arun et al., 2014), antimicrobial, antifungal (Govind et al., 2003), antibiotic (Nirmala et al., 2009) and anti-diabetic (Sharma & Soman, 2015) activities and inhibition of retroviral reverse transcriptases [i.e., human immunodeficiency virus type 1 (HIV-1)], cellular DNA polymerases and protein kinases (Bellina & Rossi, 2006). They are also anticonvulsants, sphingosine-1-phosphate (S1P) receptor agonists, malic enzyme inhibitors, ketoamide-based cathepsin K inhibitors and human melanocortin-4 receptor agonists (Babu et al., 2012). In view of the above biological importance, the crystal structure of the title compound was determined.
In the title molecule, one cyclopentane ring I (C10–C12/C22/C23) is fused with the other cyclopentane ring II (C22–C24/C29/C30) of the acenaphthylene ring system (C22–C33). The pyrrolidine ring (C12/C14/C21/N2/C22) is fused with the cyclopentane ring I, and adopts an envelope conformation with atom N2 as the flap atom deviating by 0.5765 (2) Å from the mean plane defined by the other atoms (C12/C14/C21/C22). The two cyclopentane rings I and II adopt envelope conformations with atoms C11 and C22 as the flap atoms, respectively, deviating by 0.7033 and 0.1765 Å from the mean plane. The mean plane of the pyrrolidine ring makes dihedral angles of 40.53 (10) and 80.23 (10)° with the mean planes of the cyclopentane rings I and II, respectively. The mean plane of the pyrrolidine ring makes dihedral angles of 82.04 (8) and 68.25 (9)° with the mean plane of the acenapthylene and phenyl (C8–C13) ring systems, respectively. The mean plane of the cyclopentane ring I makes a dihedral angle of 46.71 (9)° with the mean plane of the cyclopentane ring II. The mean plane of the cyclopentane ring makes dihedral angles of 47.85 (7) and 87.06 (9)° with the mean plane of the acenaphthylene ring system and the phenyl ring, respectively.
In the crystal, a pair of C—H···N interactions (Table 1) show an R22(14) ring (Fig. 2). In addition, a C—H···O hydrogen bond links the symmetry-related molecules, forming a helical chain running along the b axis (Fig. 3). The two molecules are also held together by a C—H···π interaction (Fig. 4).