organic compounds
4′-[5-(4-Fluorophenyl)pyridin-3-yl]-1′-methyldispiro[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione
aInstitute for Research in Molecular Medicine, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, and bX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
*Correspondence e-mail: hkfun@usm.my
In the title compound, C32H23FN2O3, the pyrrolidine ring adopts an The monoketo- and diketo-substituted five-membered rings are in envelope and half-chair conformations, respectively. The molecular structure is stabilized by an intramolecular C—H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, molecules are linked via intermolecular C—H⋯N and C—H⋯O hydrogen bonds into a three-dimensional network. The is further consolidated by C—H⋯π interactions.
Related literature
For general background to and the biological activity of the title compound, see: Chande et al. (2005); Prasanna et al. (2010); Karthikeyan et al. (2010); Dye (2002); Duncan & Barry (2004). For related structures, see: Kumar et al. (2010); Wei et al. (2011). For reference bond-length data, see: Allen et al. (1987). For hydrogen-bond motifs, see: Bernstein et al. (1995). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986). For ring conformations, see: Cremer & Pople (1975).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811032946/wn2449sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811032946/wn2449Isup2.hkl
A mixture of (E)-2-(5-(4-flurophenyl) pyridin-3-yl) methylene)-2, 3-dihydro-1H-indene-1-one (0.001 mmol), ninhydrin (0.001 mmol) and sarcosine (0.002 mmol) (1:1:2) was dissolved in methanol (10 ml) and refluxed for 4 h. After completion of the reaction, as evident from TLC, the mixture was poured into water (50 ml). The precipitated solid was filtered, washed with water and recrystallised from a pet. ether - ethyl acetate mixture (1:1) to yield the title compound as yellow crystals.
All H atoms were positioned geometrically and refined using a riding model with C—H = 0.95-1.00 Å and Uiso(H) = 1.2 or 1.5 Ueq(C). A rotating-group model was applied for the methyl group.
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The molecular structure of the title compound showing 50% probability displacement ellipsoids for non-H atoms. The intramolecular hydrogen bond is shown as a dashed line. | |
Fig. 2. The crystal structure of the title compound, viewed along the b axis. H atoms not involved in hydrogen bonds (dashed lines) have been omitted for clarity. |
C32H23FN2O3 | F(000) = 1048 |
Mr = 502.52 | Dx = 1.352 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 5035 reflections |
a = 14.8997 (2) Å | θ = 2.8–28.1° |
b = 7.7993 (1) Å | µ = 0.09 mm−1 |
c = 23.0188 (3) Å | T = 100 K |
β = 112.638 (1)° | Plate, yellow |
V = 2468.86 (6) Å3 | 0.36 × 0.17 × 0.05 mm |
Z = 4 |
Bruker SMART APEXII CCD area-detector diffractometer | 7184 independent reflections |
Radiation source: fine-focus sealed tube | 4664 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.057 |
ϕ and ω scans | θmax = 30.1°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −16→20 |
Tmin = 0.968, Tmax = 0.996 | k = −10→10 |
27325 measured reflections | l = −32→32 |
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)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 0.99 | w = 1/[σ2(Fo2) + (0.0641P)2] where P = (Fo2 + 2Fc2)/3 |
7184 reflections | (Δ/σ)max = 0.001 |
344 parameters | Δρmax = 0.29 e Å−3 |
0 restraints | Δρmin = −0.27 e Å−3 |
C32H23FN2O3 | V = 2468.86 (6) Å3 |
Mr = 502.52 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.8997 (2) Å | µ = 0.09 mm−1 |
b = 7.7993 (1) Å | T = 100 K |
c = 23.0188 (3) Å | 0.36 × 0.17 × 0.05 mm |
β = 112.638 (1)° |
Bruker SMART APEXII CCD area-detector diffractometer | 7184 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 4664 reflections with I > 2σ(I) |
Tmin = 0.968, Tmax = 0.996 | Rint = 0.057 |
27325 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 0.99 | Δρmax = 0.29 e Å−3 |
7184 reflections | Δρmin = −0.27 e Å−3 |
344 parameters |
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K. |
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 > 2sigma(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 | ||
F1 | −0.02526 (8) | 0.88163 (14) | 0.42880 (5) | 0.0352 (3) | |
O1 | 0.53116 (8) | 0.12559 (15) | 0.85281 (6) | 0.0203 (3) | |
O2 | 0.22158 (9) | 0.20148 (15) | 0.85535 (6) | 0.0212 (3) | |
O3 | 0.38943 (8) | −0.17977 (14) | 0.76020 (6) | 0.0187 (3) | |
N1 | 0.35687 (10) | 0.35355 (16) | 0.80293 (6) | 0.0142 (3) | |
N2 | 0.30185 (11) | 0.07049 (18) | 0.54724 (7) | 0.0200 (3) | |
C1 | 0.35388 (12) | 0.17247 (19) | 0.81705 (7) | 0.0133 (3) | |
C2 | 0.45362 (12) | 0.08860 (19) | 0.85599 (8) | 0.0146 (3) | |
C3 | 0.43827 (12) | −0.03372 (19) | 0.90018 (7) | 0.0144 (3) | |
C4 | 0.50353 (13) | −0.1516 (2) | 0.93975 (8) | 0.0180 (4) | |
H4A | 0.5677 | −0.1626 | 0.9409 | 0.022* | |
C5 | 0.47110 (14) | −0.2526 (2) | 0.97738 (8) | 0.0206 (4) | |
H5A | 0.5142 | −0.3338 | 1.0050 | 0.025* | |
C6 | 0.37646 (14) | −0.2379 (2) | 0.97576 (8) | 0.0232 (4) | |
H6A | 0.3560 | −0.3103 | 1.0015 | 0.028* | |
C7 | 0.31210 (13) | −0.1179 (2) | 0.93668 (8) | 0.0202 (4) | |
H7A | 0.2481 | −0.1062 | 0.9357 | 0.024* | |
C8 | 0.34458 (12) | −0.0158 (2) | 0.89913 (7) | 0.0153 (3) | |
C9 | 0.29442 (12) | 0.1276 (2) | 0.85693 (8) | 0.0158 (3) | |
C10 | 0.30739 (11) | 0.09841 (19) | 0.74827 (8) | 0.0130 (3) | |
C11 | 0.31431 (12) | −0.09919 (19) | 0.74843 (7) | 0.0140 (3) | |
C12 | 0.21613 (12) | −0.1679 (2) | 0.73393 (8) | 0.0155 (3) | |
C13 | 0.18807 (12) | −0.3386 (2) | 0.73650 (8) | 0.0178 (4) | |
H13A | 0.2347 | −0.4285 | 0.7487 | 0.021* | |
C14 | 0.09024 (13) | −0.3714 (2) | 0.72068 (9) | 0.0224 (4) | |
H14A | 0.0692 | −0.4855 | 0.7225 | 0.027* | |
C15 | 0.02184 (13) | −0.2386 (2) | 0.70207 (9) | 0.0225 (4) | |
H15A | −0.0451 | −0.2643 | 0.6909 | 0.027* | |
C16 | 0.05016 (12) | −0.0699 (2) | 0.69970 (8) | 0.0191 (4) | |
H16A | 0.0033 | 0.0196 | 0.6867 | 0.023* | |
C17 | 0.14895 (12) | −0.0346 (2) | 0.71677 (7) | 0.0150 (3) | |
C18 | 0.19694 (11) | 0.1362 (2) | 0.71821 (8) | 0.0155 (3) | |
H18A | 0.1781 | 0.2198 | 0.7439 | 0.019* | |
H18B | 0.1785 | 0.1826 | 0.6751 | 0.019* | |
C19 | 0.37211 (12) | 0.19184 (19) | 0.71845 (8) | 0.0137 (3) | |
H19A | 0.4335 | 0.1243 | 0.7297 | 0.016* | |
C20 | 0.39874 (12) | 0.3643 (2) | 0.75442 (8) | 0.0156 (3) | |
H20A | 0.4702 | 0.3790 | 0.7741 | 0.019* | |
H20B | 0.3704 | 0.4618 | 0.7257 | 0.019* | |
C21 | 0.40153 (13) | 0.4657 (2) | 0.85715 (8) | 0.0187 (4) | |
H21A | 0.3638 | 0.4615 | 0.8838 | 0.028* | |
H21B | 0.4026 | 0.5836 | 0.8427 | 0.028* | |
H21C | 0.4682 | 0.4275 | 0.8814 | 0.028* | |
C22 | 0.32635 (12) | 0.2035 (2) | 0.64733 (8) | 0.0150 (3) | |
C23 | 0.33944 (12) | 0.0714 (2) | 0.61049 (8) | 0.0171 (3) | |
H23A | 0.3775 | −0.0243 | 0.6315 | 0.021* | |
C24 | 0.24663 (12) | 0.2045 (2) | 0.51798 (8) | 0.0185 (4) | |
H24A | 0.2200 | 0.2059 | 0.4733 | 0.022* | |
C25 | 0.22608 (12) | 0.3425 (2) | 0.54969 (8) | 0.0157 (3) | |
C26 | 0.26802 (12) | 0.3398 (2) | 0.61536 (8) | 0.0157 (3) | |
H26A | 0.2566 | 0.4323 | 0.6385 | 0.019* | |
C27 | 0.16180 (12) | 0.4862 (2) | 0.51584 (8) | 0.0170 (3) | |
C28 | 0.08191 (13) | 0.4584 (2) | 0.45942 (8) | 0.0207 (4) | |
H28A | 0.0704 | 0.3471 | 0.4412 | 0.025* | |
C29 | 0.01936 (13) | 0.5917 (2) | 0.42980 (9) | 0.0247 (4) | |
H29A | −0.0349 | 0.5731 | 0.3915 | 0.030* | |
C30 | 0.03784 (13) | 0.7509 (2) | 0.45716 (9) | 0.0246 (4) | |
C31 | 0.11572 (13) | 0.7859 (2) | 0.51189 (9) | 0.0239 (4) | |
H31A | 0.1265 | 0.8982 | 0.5292 | 0.029* | |
C32 | 0.17830 (13) | 0.6522 (2) | 0.54108 (8) | 0.0210 (4) | |
H32A | 0.2332 | 0.6735 | 0.5788 | 0.025* |
U11 | U22 | U33 | U12 | U13 | U23 | |
F1 | 0.0311 (7) | 0.0361 (6) | 0.0309 (7) | 0.0124 (5) | 0.0036 (5) | 0.0117 (5) |
O1 | 0.0139 (6) | 0.0242 (6) | 0.0226 (7) | 0.0003 (5) | 0.0068 (5) | 0.0041 (5) |
O2 | 0.0162 (6) | 0.0261 (6) | 0.0231 (7) | 0.0044 (5) | 0.0097 (5) | 0.0004 (5) |
O3 | 0.0148 (6) | 0.0168 (6) | 0.0249 (7) | 0.0031 (5) | 0.0082 (5) | 0.0019 (5) |
N1 | 0.0177 (7) | 0.0118 (6) | 0.0132 (7) | −0.0006 (5) | 0.0060 (6) | 0.0002 (5) |
N2 | 0.0198 (8) | 0.0215 (7) | 0.0194 (8) | −0.0020 (6) | 0.0083 (6) | −0.0038 (6) |
C1 | 0.0131 (8) | 0.0136 (7) | 0.0130 (8) | 0.0008 (6) | 0.0049 (6) | 0.0015 (6) |
C2 | 0.0146 (8) | 0.0132 (7) | 0.0151 (8) | 0.0009 (6) | 0.0047 (6) | −0.0013 (6) |
C3 | 0.0164 (8) | 0.0138 (7) | 0.0118 (7) | 0.0004 (6) | 0.0042 (6) | −0.0008 (6) |
C4 | 0.0214 (9) | 0.0162 (8) | 0.0138 (8) | 0.0022 (7) | 0.0039 (7) | −0.0014 (6) |
C5 | 0.0305 (10) | 0.0135 (8) | 0.0141 (8) | 0.0027 (7) | 0.0044 (7) | 0.0019 (6) |
C6 | 0.0372 (11) | 0.0181 (8) | 0.0165 (9) | −0.0046 (8) | 0.0128 (8) | 0.0015 (7) |
C7 | 0.0230 (10) | 0.0205 (8) | 0.0199 (9) | −0.0025 (7) | 0.0115 (7) | −0.0004 (7) |
C8 | 0.0176 (8) | 0.0154 (7) | 0.0126 (8) | −0.0015 (6) | 0.0056 (6) | −0.0019 (6) |
C9 | 0.0136 (8) | 0.0177 (8) | 0.0158 (8) | −0.0008 (6) | 0.0051 (7) | −0.0006 (6) |
C10 | 0.0109 (8) | 0.0131 (7) | 0.0149 (8) | 0.0008 (6) | 0.0050 (6) | 0.0010 (6) |
C11 | 0.0152 (8) | 0.0149 (7) | 0.0118 (8) | 0.0006 (6) | 0.0051 (6) | 0.0011 (6) |
C12 | 0.0142 (8) | 0.0163 (8) | 0.0159 (8) | −0.0016 (6) | 0.0059 (7) | −0.0009 (6) |
C13 | 0.0186 (9) | 0.0161 (8) | 0.0197 (9) | −0.0007 (7) | 0.0085 (7) | −0.0006 (7) |
C14 | 0.0238 (10) | 0.0186 (8) | 0.0266 (10) | −0.0068 (7) | 0.0118 (8) | −0.0024 (7) |
C15 | 0.0152 (9) | 0.0294 (9) | 0.0233 (9) | −0.0054 (7) | 0.0078 (7) | −0.0016 (7) |
C16 | 0.0136 (8) | 0.0244 (9) | 0.0187 (8) | 0.0008 (7) | 0.0055 (7) | −0.0005 (7) |
C17 | 0.0143 (8) | 0.0179 (8) | 0.0132 (8) | 0.0001 (6) | 0.0059 (6) | −0.0003 (6) |
C18 | 0.0135 (8) | 0.0157 (8) | 0.0163 (8) | 0.0019 (6) | 0.0047 (6) | 0.0024 (6) |
C19 | 0.0122 (8) | 0.0150 (7) | 0.0147 (8) | −0.0001 (6) | 0.0060 (6) | 0.0006 (6) |
C20 | 0.0177 (9) | 0.0149 (7) | 0.0138 (8) | −0.0027 (6) | 0.0057 (7) | 0.0010 (6) |
C21 | 0.0203 (9) | 0.0185 (8) | 0.0150 (8) | −0.0016 (7) | 0.0043 (7) | −0.0013 (6) |
C22 | 0.0137 (8) | 0.0179 (8) | 0.0150 (8) | −0.0009 (6) | 0.0072 (7) | 0.0003 (6) |
C23 | 0.0153 (9) | 0.0182 (8) | 0.0193 (9) | −0.0005 (7) | 0.0082 (7) | −0.0012 (7) |
C24 | 0.0171 (9) | 0.0231 (8) | 0.0152 (8) | −0.0044 (7) | 0.0059 (7) | −0.0027 (7) |
C25 | 0.0135 (8) | 0.0183 (8) | 0.0162 (8) | −0.0038 (6) | 0.0066 (7) | 0.0002 (6) |
C26 | 0.0165 (8) | 0.0157 (8) | 0.0160 (8) | −0.0001 (6) | 0.0074 (7) | −0.0013 (6) |
C27 | 0.0150 (8) | 0.0220 (8) | 0.0149 (8) | −0.0016 (7) | 0.0070 (7) | 0.0020 (7) |
C28 | 0.0191 (9) | 0.0278 (9) | 0.0149 (8) | −0.0007 (7) | 0.0063 (7) | 0.0001 (7) |
C29 | 0.0187 (9) | 0.0371 (10) | 0.0157 (9) | 0.0010 (8) | 0.0039 (7) | 0.0028 (8) |
C30 | 0.0212 (10) | 0.0280 (9) | 0.0229 (10) | 0.0075 (8) | 0.0065 (8) | 0.0117 (8) |
C31 | 0.0223 (10) | 0.0207 (9) | 0.0270 (10) | 0.0004 (7) | 0.0075 (8) | 0.0053 (7) |
C32 | 0.0188 (9) | 0.0225 (9) | 0.0187 (9) | −0.0021 (7) | 0.0038 (7) | 0.0037 (7) |
F1—C30 | 1.3702 (19) | C15—C16 | 1.390 (2) |
O1—C2 | 1.2200 (19) | C15—H15A | 0.9500 |
O2—C9 | 1.2170 (19) | C16—C17 | 1.397 (2) |
O3—C11 | 1.2196 (19) | C16—H16A | 0.9500 |
N1—C1 | 1.4537 (19) | C17—C18 | 1.506 (2) |
N1—C21 | 1.458 (2) | C18—H18A | 0.9900 |
N1—C20 | 1.476 (2) | C18—H18B | 0.9900 |
N2—C24 | 1.341 (2) | C19—C22 | 1.515 (2) |
N2—C23 | 1.344 (2) | C19—C20 | 1.549 (2) |
C1—C9 | 1.541 (2) | C19—H19A | 1.0000 |
C1—C2 | 1.554 (2) | C20—H20A | 0.9900 |
C1—C10 | 1.574 (2) | C20—H20B | 0.9900 |
C2—C3 | 1.475 (2) | C21—H21A | 0.9800 |
C3—C4 | 1.393 (2) | C21—H21B | 0.9800 |
C3—C8 | 1.394 (2) | C21—H21C | 0.9800 |
C4—C5 | 1.388 (2) | C22—C26 | 1.391 (2) |
C4—H4A | 0.9500 | C22—C23 | 1.395 (2) |
C5—C6 | 1.401 (3) | C23—H23A | 0.9500 |
C5—H5A | 0.9500 | C24—C25 | 1.399 (2) |
C6—C7 | 1.393 (2) | C24—H24A | 0.9500 |
C6—H6A | 0.9500 | C25—C26 | 1.396 (2) |
C7—C8 | 1.392 (2) | C25—C27 | 1.485 (2) |
C7—H7A | 0.9500 | C26—H26A | 0.9500 |
C8—C9 | 1.481 (2) | C27—C28 | 1.400 (2) |
C10—C11 | 1.545 (2) | C27—C32 | 1.401 (2) |
C10—C18 | 1.548 (2) | C28—C29 | 1.388 (2) |
C10—C19 | 1.562 (2) | C28—H28A | 0.9500 |
C11—C12 | 1.471 (2) | C29—C30 | 1.371 (3) |
C12—C17 | 1.391 (2) | C29—H29A | 0.9500 |
C12—C13 | 1.403 (2) | C30—C31 | 1.372 (3) |
C13—C14 | 1.384 (2) | C31—C32 | 1.388 (2) |
C13—H13A | 0.9500 | C31—H31A | 0.9500 |
C14—C15 | 1.399 (2) | C32—H32A | 0.9500 |
C14—H14A | 0.9500 | ||
C1—N1—C21 | 115.76 (13) | C12—C17—C18 | 111.79 (14) |
C1—N1—C20 | 106.41 (12) | C16—C17—C18 | 128.35 (15) |
C21—N1—C20 | 115.26 (13) | C17—C18—C10 | 104.82 (12) |
C24—N2—C23 | 117.35 (15) | C17—C18—H18A | 110.8 |
N1—C1—C9 | 115.33 (13) | C10—C18—H18A | 110.8 |
N1—C1—C2 | 115.67 (13) | C17—C18—H18B | 110.8 |
C9—C1—C2 | 101.66 (12) | C10—C18—H18B | 110.8 |
N1—C1—C10 | 99.85 (12) | H18A—C18—H18B | 108.9 |
C9—C1—C10 | 112.61 (13) | C22—C19—C20 | 116.22 (13) |
C2—C1—C10 | 112.26 (12) | C22—C19—C10 | 113.93 (13) |
O1—C2—C3 | 126.58 (15) | C20—C19—C10 | 104.16 (13) |
O1—C2—C1 | 125.69 (15) | C22—C19—H19A | 107.4 |
C3—C2—C1 | 107.60 (13) | C20—C19—H19A | 107.4 |
C4—C3—C8 | 121.34 (15) | C10—C19—H19A | 107.4 |
C4—C3—C2 | 128.58 (16) | N1—C20—C19 | 105.02 (12) |
C8—C3—C2 | 110.06 (14) | N1—C20—H20A | 110.7 |
C5—C4—C3 | 117.37 (17) | C19—C20—H20A | 110.7 |
C5—C4—H4A | 121.3 | N1—C20—H20B | 110.7 |
C3—C4—H4A | 121.3 | C19—C20—H20B | 110.7 |
C4—C5—C6 | 121.71 (16) | H20A—C20—H20B | 108.8 |
C4—C5—H5A | 119.1 | N1—C21—H21A | 109.5 |
C6—C5—H5A | 119.1 | N1—C21—H21B | 109.5 |
C7—C6—C5 | 120.53 (16) | H21A—C21—H21B | 109.5 |
C7—C6—H6A | 119.7 | N1—C21—H21C | 109.5 |
C5—C6—H6A | 119.7 | H21A—C21—H21C | 109.5 |
C8—C7—C6 | 117.91 (16) | H21B—C21—H21C | 109.5 |
C8—C7—H7A | 121.0 | C26—C22—C23 | 116.61 (15) |
C6—C7—H7A | 121.0 | C26—C22—C19 | 123.18 (14) |
C7—C8—C3 | 121.11 (15) | C23—C22—C19 | 120.18 (14) |
C7—C8—C9 | 129.14 (16) | N2—C23—C22 | 124.41 (16) |
C3—C8—C9 | 109.66 (14) | N2—C23—H23A | 117.8 |
O2—C9—C8 | 126.60 (15) | C22—C23—H23A | 117.8 |
O2—C9—C1 | 125.80 (15) | N2—C24—C25 | 123.58 (16) |
C8—C9—C1 | 107.55 (13) | N2—C24—H24A | 118.2 |
C11—C10—C18 | 104.44 (12) | C25—C24—H24A | 118.2 |
C11—C10—C19 | 114.49 (13) | C26—C25—C24 | 117.20 (15) |
C18—C10—C19 | 116.40 (13) | C26—C25—C27 | 120.58 (15) |
C11—C10—C1 | 111.14 (13) | C24—C25—C27 | 122.22 (15) |
C18—C10—C1 | 111.13 (13) | C22—C26—C25 | 120.82 (15) |
C19—C10—C1 | 99.42 (12) | C22—C26—H26A | 119.6 |
O3—C11—C12 | 127.60 (15) | C25—C26—H26A | 119.6 |
O3—C11—C10 | 124.71 (15) | C28—C27—C32 | 118.59 (16) |
C12—C11—C10 | 107.67 (13) | C28—C27—C25 | 121.06 (15) |
C17—C12—C13 | 121.85 (15) | C32—C27—C25 | 120.32 (15) |
C17—C12—C11 | 109.63 (14) | C29—C28—C27 | 120.67 (17) |
C13—C12—C11 | 128.51 (15) | C29—C28—H28A | 119.7 |
C14—C13—C12 | 117.71 (16) | C27—C28—H28A | 119.7 |
C14—C13—H13A | 121.1 | C30—C29—C28 | 118.33 (17) |
C12—C13—H13A | 121.1 | C30—C29—H29A | 120.8 |
C13—C14—C15 | 120.88 (16) | C28—C29—H29A | 120.8 |
C13—C14—H14A | 119.6 | F1—C30—C29 | 118.38 (16) |
C15—C14—H14A | 119.6 | F1—C30—C31 | 118.15 (17) |
C16—C15—C14 | 121.10 (16) | C29—C30—C31 | 123.47 (17) |
C16—C15—H15A | 119.5 | C30—C31—C32 | 117.89 (17) |
C14—C15—H15A | 119.5 | C30—C31—H31A | 121.1 |
C15—C16—C17 | 118.59 (16) | C32—C31—H31A | 121.1 |
C15—C16—H16A | 120.7 | C31—C32—C27 | 121.03 (17) |
C17—C16—H16A | 120.7 | C31—C32—H32A | 119.5 |
C12—C17—C16 | 119.84 (15) | C27—C32—H32A | 119.5 |
C21—N1—C1—C9 | 62.03 (19) | C10—C11—C12—C13 | −171.27 (16) |
C20—N1—C1—C9 | −168.47 (13) | C17—C12—C13—C14 | 0.6 (3) |
C21—N1—C1—C2 | −56.37 (19) | C11—C12—C13—C14 | 179.77 (16) |
C20—N1—C1—C2 | 73.13 (16) | C12—C13—C14—C15 | 0.8 (3) |
C21—N1—C1—C10 | −177.04 (13) | C13—C14—C15—C16 | −0.8 (3) |
C20—N1—C1—C10 | −47.54 (15) | C14—C15—C16—C17 | −0.4 (3) |
N1—C1—C2—O1 | −34.0 (2) | C13—C12—C17—C16 | −1.9 (3) |
C9—C1—C2—O1 | −159.71 (16) | C11—C12—C17—C16 | 178.80 (15) |
C10—C1—C2—O1 | 79.72 (19) | C13—C12—C17—C18 | 179.42 (15) |
N1—C1—C2—C3 | 142.07 (13) | C11—C12—C17—C18 | 0.13 (19) |
C9—C1—C2—C3 | 16.34 (16) | C15—C16—C17—C12 | 1.8 (2) |
C10—C1—C2—C3 | −104.23 (15) | C15—C16—C17—C18 | −179.80 (16) |
O1—C2—C3—C4 | −11.5 (3) | C12—C17—C18—C10 | −8.03 (18) |
C1—C2—C3—C4 | 172.51 (15) | C16—C17—C18—C10 | 173.44 (16) |
O1—C2—C3—C8 | 167.33 (16) | C11—C10—C18—C17 | 12.09 (16) |
C1—C2—C3—C8 | −8.67 (18) | C19—C10—C18—C17 | 139.37 (14) |
C8—C3—C4—C5 | 1.0 (2) | C1—C10—C18—C17 | −107.82 (14) |
C2—C3—C4—C5 | 179.71 (16) | C11—C10—C19—C22 | 82.84 (17) |
C3—C4—C5—C6 | 0.3 (2) | C18—C10—C19—C22 | −39.30 (19) |
C4—C5—C6—C7 | −1.2 (3) | C1—C10—C19—C22 | −158.66 (13) |
C5—C6—C7—C8 | 0.8 (3) | C11—C10—C19—C20 | −149.54 (13) |
C6—C7—C8—C3 | 0.5 (2) | C18—C10—C19—C20 | 88.32 (16) |
C6—C7—C8—C9 | −175.63 (16) | C1—C10—C19—C20 | −31.03 (14) |
C4—C3—C8—C7 | −1.4 (2) | C1—N1—C20—C19 | 27.63 (16) |
C2—C3—C8—C7 | 179.65 (15) | C21—N1—C20—C19 | 157.41 (13) |
C4—C3—C8—C9 | 175.39 (14) | C22—C19—C20—N1 | 130.35 (14) |
C2—C3—C8—C9 | −3.53 (18) | C10—C19—C20—N1 | 4.16 (16) |
C7—C8—C9—O2 | 13.4 (3) | C20—C19—C22—C26 | −31.0 (2) |
C3—C8—C9—O2 | −163.05 (16) | C10—C19—C22—C26 | 90.10 (18) |
C7—C8—C9—C1 | −169.08 (16) | C20—C19—C22—C23 | 150.83 (15) |
C3—C8—C9—C1 | 14.43 (18) | C10—C19—C22—C23 | −88.05 (18) |
N1—C1—C9—O2 | 33.2 (2) | C24—N2—C23—C22 | −1.3 (2) |
C2—C1—C9—O2 | 159.15 (16) | C26—C22—C23—N2 | 1.8 (2) |
C10—C1—C9—O2 | −80.52 (19) | C19—C22—C23—N2 | −179.93 (15) |
N1—C1—C9—C8 | −144.31 (14) | C23—N2—C24—C25 | −0.5 (2) |
C2—C1—C9—C8 | −18.35 (16) | N2—C24—C25—C26 | 1.6 (2) |
C10—C1—C9—C8 | 101.97 (15) | N2—C24—C25—C27 | −177.84 (15) |
N1—C1—C10—C11 | 168.49 (13) | C23—C22—C26—C25 | −0.5 (2) |
C9—C1—C10—C11 | −68.64 (16) | C19—C22—C26—C25 | −178.74 (15) |
C2—C1—C10—C11 | 45.39 (17) | C24—C25—C26—C22 | −1.0 (2) |
N1—C1—C10—C18 | −75.66 (15) | C27—C25—C26—C22 | 178.41 (15) |
C9—C1—C10—C18 | 47.21 (17) | C26—C25—C27—C28 | −145.25 (17) |
C2—C1—C10—C18 | 161.23 (13) | C24—C25—C27—C28 | 34.2 (2) |
N1—C1—C10—C19 | 47.52 (14) | C26—C25—C27—C32 | 32.6 (2) |
C9—C1—C10—C19 | 170.39 (12) | C24—C25—C27—C32 | −147.97 (17) |
C2—C1—C10—C19 | −75.59 (14) | C32—C27—C28—C29 | −1.2 (3) |
C18—C10—C11—O3 | 169.18 (15) | C25—C27—C28—C29 | 176.67 (16) |
C19—C10—C11—O3 | 40.7 (2) | C27—C28—C29—C30 | 0.0 (3) |
C1—C10—C11—O3 | −70.9 (2) | C28—C29—C30—F1 | −178.37 (16) |
C18—C10—C11—C12 | −12.43 (17) | C28—C29—C30—C31 | 0.9 (3) |
C19—C10—C11—C12 | −140.87 (14) | F1—C30—C31—C32 | 178.73 (16) |
C1—C10—C11—C12 | 107.48 (15) | C29—C30—C31—C32 | −0.6 (3) |
O3—C11—C12—C17 | −173.71 (16) | C30—C31—C32—C27 | −0.7 (3) |
C10—C11—C12—C17 | 7.96 (18) | C28—C27—C32—C31 | 1.6 (3) |
O3—C11—C12—C13 | 7.1 (3) | C25—C27—C32—C31 | −176.31 (16) |
Cg1 is the centroid of the N2/C22–C26 pyridyl ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6A···N2i | 0.95 | 2.56 | 3.476 (2) | 163 |
C13—H13A···N1ii | 0.95 | 2.45 | 3.387 (2) | 168 |
C15—H15A···O2iii | 0.95 | 2.44 | 3.381 (3) | 169 |
C18—H18A···O2 | 0.99 | 2.40 | 3.077 (2) | 125 |
C20—H20A···O3iv | 0.99 | 2.55 | 3.318 (2) | 135 |
C4—H4A···Cg1v | 0.95 | 2.65 | 3.552 (2) | 159 |
Symmetry codes: (i) x, −y−1/2, z+1/2; (ii) x, y−1, z; (iii) −x, y−1/2, −z+3/2; (iv) −x+1, y+1/2, −z+3/2; (v) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C32H23FN2O3 |
Mr | 502.52 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 100 |
a, b, c (Å) | 14.8997 (2), 7.7993 (1), 23.0188 (3) |
β (°) | 112.638 (1) |
V (Å3) | 2468.86 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.36 × 0.17 × 0.05 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.968, 0.996 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 27325, 7184, 4664 |
Rint | 0.057 |
(sin θ/λ)max (Å−1) | 0.705 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.135, 0.99 |
No. of reflections | 7184 |
No. of parameters | 344 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.29, −0.27 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Cg1 is the centroid of the N2/C22–C26 pyridyl ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6A···N2i | 0.95 | 2.56 | 3.476 (2) | 163 |
C13—H13A···N1ii | 0.95 | 2.45 | 3.387 (2) | 168 |
C15—H15A···O2iii | 0.95 | 2.44 | 3.381 (3) | 169 |
C18—H18A···O2 | 0.99 | 2.40 | 3.077 (2) | 125 |
C20—H20A···O3iv | 0.99 | 2.55 | 3.318 (2) | 135 |
C4—H4A···Cg1v | 0.95 | 2.65 | 3.552 (2) | 159 |
Symmetry codes: (i) x, −y−1/2, z+1/2; (ii) x, y−1, z; (iii) −x, y−1/2, −z+3/2; (iv) −x+1, y+1/2, −z+3/2; (v) −x+1, y−1/2, −z+3/2. |
Acknowledgements
The authors thank Universiti Sains Malaysia (USM) for providing research facilities. HKF and CKQ also thank USM for the Research University Grant (No. 1001/PFIZIK/811160).
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.
Spiro compounds have drawn considerable attention due to their antiseptic, analgesic and broad-spectrum antimicrobial activities (Chande et al., 2005). Many of these compounds are found to have comparable or even better antimycobacterial activities than some of the first-line TB drugs currently available (Prasanna et al., 2010; Karthikeyan et al., 2010). Tuberculosis (TB) is a chronic illness caused by Mycobacterium tuberculosis and kills approximately 2 million people each year (Dye, 2002). Thus there is an urgent need to develop potent new antitubercular agents with new mechanisms of action and low toxicity profiles which are effective against drug-susceptible and drug-resistant strains of M. tuberculosis (Duncan & Barry, 2004).
The molecular structure is shown in Fig. 1. Bond lengths (Allen et al., 1987) and angles are within normal ranges and are comparable to those in related crystal structures (Kumar et al., 2010; Wei et al., 2011).
The pyrrolidine ring (N1/C1/C10/C19/C20) adopts an envelope conformation, puckering parameters (Cremer & Pople, 1975) Q = 0.4855 (18) Å and ϕ = 41.8 (2)°, with atom C1 at the flap. The five-membered carbocyclic ring, C1-C3/C8/C9 is twisted on C9—C1, with puckering parameters Q = 0.1846 (18) Å and ϕ = 170.4 (6)°, thereby adopting a half-chair conformation. The five-membered carbocyclic ring, C10-C12/C17/C18 adopts an envelope conformation, with puckering parameters Q = 0.1277 (18) Å and ϕ = 359.4 (8)°, and with atom C10 at the flap.
If the six-membered rings N2/C22–C26, C3–C8, C12–C17 and C27–32 are denoted by R4, R5, R6, R7 then the dihedral angles for R4^R5, R5^R6, R4^R6 and R4^R7 are 69.10 (8), 39.95 (8), 78.82 (9) and 33.46 (9)°, respectively.
The molecular structure is stabilized by an intramolecular C18–H18A···O2 hydrogen bond (Table 1), which generates an S(6) ring motif (Fig. 1, Bernstein et al., 1995). In the crystal structure, Fig. 2, molecules are linked via intermolecular C6—H6A···N2, C13—H13A···N1, C15—H15A···O2 and C20—H20A···O3 hydrogen bonds (Table 1) into a three-dimensional network. The crystal structure is further consolidated by C4—H4A···Cg1 (Table 1) interactions, where Cg1 is the centroid of the N2/C22-C26 pyridyl ring.