organic compounds
Ethyl 1-benzoyl-4-hydroxy-2,6-diphenyl-1,2,5,6-tetrahydropyridine-3-carboxylate
aDepartment of Image Science and Engineering, Pukyong National University, Busan 608-739, Republic of Korea, and bCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: ytjeong@pknu.ac.kr
In the title compound, C27H25NO4, the tetrahydropyridine ring adopts a half-chair conformation. The three phenyl rings form dihedral angles of 66.33 (7), 87.36 (8) and 36.90 (7)° with the least-squares plane through the tetrahydropyridine ring. The molecular conformation is stabilized by an intramolecular O—H⋯O hydrogen bond, generating an S(6) motif.
Related literature
For related structures, see: Subha Nandhini et al. (2003); Nithya et al. (2009); Aravindhan et al. (2009); Aridoss et al. (2009, 2010). For ring see: Cremer & Pople (1975); Nardelli (1983).
Experimental
Crystal data
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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: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811003266/is2669sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811003266/is2669Isup2.hkl
To a mixture of 3-carboxyethyl-2,6-diphenylpiperidin-4-one (1 equiv.) and triethylamine (1.5 equiv.) in benzene, freshly distilled benzoyl chloride in benzene was added dropwise and stirred well at room temperature until completion. The crude mass obtained by the base work upon purification and recrystallization in distilled ethanol gave fine white crystals suitable for X-ray study.
The C bound H atoms positioned geometrically (C—H = 0.93–0.98 Å) and allowed to ride on their parent atoms, with 1.5Ueq(C) for methyl H and 1.2Ueq(C) for other H atoms.
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: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C27H25NO4 | Z = 2 |
Mr = 427.48 | F(000) = 452 |
Triclinic, P1 | Dx = 1.281 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.2784 (7) Å | Cell parameters from 1225 reflections |
b = 10.6116 (9) Å | θ = 1.6–28.4° |
c = 12.7572 (11) Å | µ = 0.09 mm−1 |
α = 85.681 (4)° | T = 293 K |
β = 89.963 (4)° | Block, white |
γ = 82.508 (5)° | 0.25 × 0.23 × 0.20 mm |
V = 1107.91 (16) Å3 |
Bruker SMART APEXII area-detector diffractometer | 5526 independent reflections |
Radiation source: fine-focus sealed tube | 4179 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
ω and ϕ scans | θmax = 28.4°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −11→11 |
Tmin = 0.979, Tmax = 0.983 | k = −14→14 |
20295 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)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.120 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0497P)2 + 0.2116P] where P = (Fo2 + 2Fc2)/3 |
5526 reflections | (Δ/σ)max < 0.001 |
290 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.15 e Å−3 |
C27H25NO4 | γ = 82.508 (5)° |
Mr = 427.48 | V = 1107.91 (16) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.2784 (7) Å | Mo Kα radiation |
b = 10.6116 (9) Å | µ = 0.09 mm−1 |
c = 12.7572 (11) Å | T = 293 K |
α = 85.681 (4)° | 0.25 × 0.23 × 0.20 mm |
β = 89.963 (4)° |
Bruker SMART APEXII area-detector diffractometer | 5526 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 4179 reflections with I > 2σ(I) |
Tmin = 0.979, Tmax = 0.983 | Rint = 0.024 |
20295 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.120 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.20 e Å−3 |
5526 reflections | Δρmin = −0.15 e Å−3 |
290 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 | 0.35152 (15) | 0.26735 (12) | 0.41384 (9) | 0.0431 (3) | |
H1 | 0.3276 | 0.2416 | 0.4870 | 0.052* | |
C2 | 0.44264 (18) | 0.38303 (14) | 0.41541 (11) | 0.0551 (3) | |
H2A | 0.4025 | 0.4326 | 0.4731 | 0.066* | |
H2B | 0.5573 | 0.3539 | 0.4285 | 0.066* | |
C3 | 0.42551 (17) | 0.46663 (12) | 0.31645 (11) | 0.0483 (3) | |
C4 | 0.31584 (15) | 0.45704 (11) | 0.23982 (9) | 0.0421 (3) | |
C5 | 0.19897 (14) | 0.35828 (11) | 0.24886 (9) | 0.0382 (2) | |
H5 | 0.0906 | 0.4048 | 0.2328 | 0.046* | |
C6 | 0.22569 (15) | 0.25498 (11) | 0.17071 (9) | 0.0410 (3) | |
C7 | 0.34280 (18) | 0.25430 (15) | 0.09352 (12) | 0.0585 (4) | |
H7 | 0.4142 | 0.3152 | 0.0911 | 0.070* | |
C8 | 0.3555 (2) | 0.16428 (18) | 0.01975 (15) | 0.0758 (5) | |
H8 | 0.4340 | 0.1660 | −0.0324 | 0.091* | |
C9 | 0.2530 (2) | 0.07296 (16) | 0.02343 (14) | 0.0739 (5) | |
H9 | 0.2626 | 0.0117 | −0.0255 | 0.089* | |
C10 | 0.1359 (2) | 0.07199 (15) | 0.09956 (12) | 0.0663 (4) | |
H10 | 0.0657 | 0.0102 | 0.1020 | 0.080* | |
C11 | 0.12177 (19) | 0.16256 (13) | 0.17261 (11) | 0.0528 (3) | |
H11 | 0.0416 | 0.1614 | 0.2236 | 0.063* | |
C12 | 0.44595 (15) | 0.15211 (13) | 0.36780 (10) | 0.0447 (3) | |
C13 | 0.59156 (19) | 0.15546 (17) | 0.31517 (14) | 0.0692 (4) | |
H13 | 0.6367 | 0.2313 | 0.3062 | 0.083* | |
C14 | 0.6700 (2) | 0.0462 (2) | 0.27598 (19) | 0.0929 (7) | |
H14 | 0.7676 | 0.0494 | 0.2403 | 0.112* | |
C15 | 0.6072 (2) | −0.0660 (2) | 0.28857 (17) | 0.0873 (6) | |
H15 | 0.6602 | −0.1385 | 0.2606 | 0.105* | |
C16 | 0.4653 (2) | −0.07137 (17) | 0.34282 (16) | 0.0748 (5) | |
H16 | 0.4226 | −0.1482 | 0.3531 | 0.090* | |
C17 | 0.38547 (18) | 0.03709 (14) | 0.38216 (12) | 0.0573 (4) | |
H17 | 0.2892 | 0.0326 | 0.4190 | 0.069* | |
C18 | 0.29783 (17) | 0.55330 (12) | 0.15177 (10) | 0.0477 (3) | |
C19 | 0.1465 (2) | 0.63209 (17) | −0.00422 (12) | 0.0685 (4) | |
H19A | 0.1880 | 0.7112 | 0.0078 | 0.082* | |
H19B | 0.0311 | 0.6514 | −0.0203 | 0.082* | |
C20 | 0.2327 (2) | 0.5731 (2) | −0.09393 (13) | 0.0832 (6) | |
H20A | 0.3479 | 0.5599 | −0.0799 | 0.125* | |
H20B | 0.2108 | 0.6286 | −0.1567 | 0.125* | |
H20C | 0.1954 | 0.4927 | −0.1033 | 0.125* | |
C21 | 0.04496 (15) | 0.30444 (11) | 0.40464 (10) | 0.0416 (3) | |
C22 | 0.03654 (15) | 0.27946 (12) | 0.52150 (10) | 0.0433 (3) | |
C23 | −0.04315 (18) | 0.18014 (14) | 0.56215 (11) | 0.0549 (3) | |
H23 | −0.0836 | 0.1265 | 0.5172 | 0.066* | |
C24 | −0.0628 (2) | 0.16050 (17) | 0.66984 (12) | 0.0655 (4) | |
H24 | −0.1142 | 0.0925 | 0.6971 | 0.079* | |
C25 | −0.0065 (2) | 0.24121 (17) | 0.73612 (12) | 0.0643 (4) | |
H25 | −0.0203 | 0.2280 | 0.8083 | 0.077* | |
C26 | 0.0700 (2) | 0.34139 (15) | 0.69651 (12) | 0.0620 (4) | |
H26 | 0.1068 | 0.3965 | 0.7417 | 0.074* | |
C27 | 0.09253 (18) | 0.36049 (13) | 0.58943 (11) | 0.0531 (3) | |
H27 | 0.1454 | 0.4280 | 0.5628 | 0.064* | |
N1 | 0.19330 (12) | 0.30648 (9) | 0.35920 (7) | 0.0388 (2) | |
O1 | 0.52511 (14) | 0.55669 (10) | 0.31367 (9) | 0.0663 (3) | |
H1A | 0.5089 | 0.6028 | 0.2592 | 0.099* | |
O2 | 0.38767 (14) | 0.63583 (10) | 0.13602 (9) | 0.0687 (3) | |
O3 | 0.17091 (12) | 0.54509 (9) | 0.08975 (7) | 0.0530 (2) | |
O4 | −0.08244 (11) | 0.32515 (10) | 0.35338 (8) | 0.0563 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0447 (6) | 0.0496 (7) | 0.0359 (6) | −0.0114 (5) | −0.0075 (5) | −0.0002 (5) |
C2 | 0.0608 (8) | 0.0598 (8) | 0.0487 (7) | −0.0218 (7) | −0.0139 (6) | −0.0056 (6) |
C3 | 0.0527 (7) | 0.0446 (7) | 0.0511 (7) | −0.0167 (6) | −0.0007 (6) | −0.0096 (5) |
C4 | 0.0474 (7) | 0.0384 (6) | 0.0417 (6) | −0.0098 (5) | 0.0013 (5) | −0.0042 (5) |
C5 | 0.0418 (6) | 0.0381 (6) | 0.0350 (6) | −0.0079 (5) | −0.0044 (5) | −0.0006 (4) |
C6 | 0.0457 (6) | 0.0398 (6) | 0.0372 (6) | −0.0047 (5) | −0.0091 (5) | −0.0016 (5) |
C7 | 0.0539 (8) | 0.0606 (9) | 0.0643 (9) | −0.0121 (7) | 0.0074 (7) | −0.0191 (7) |
C8 | 0.0766 (11) | 0.0824 (12) | 0.0721 (11) | −0.0086 (9) | 0.0160 (9) | −0.0333 (9) |
C9 | 0.0989 (13) | 0.0620 (10) | 0.0636 (10) | −0.0070 (9) | −0.0032 (9) | −0.0282 (8) |
C10 | 0.0967 (12) | 0.0514 (8) | 0.0556 (9) | −0.0254 (8) | −0.0139 (8) | −0.0085 (7) |
C11 | 0.0701 (9) | 0.0494 (7) | 0.0417 (7) | −0.0193 (6) | −0.0052 (6) | −0.0026 (5) |
C12 | 0.0398 (6) | 0.0529 (7) | 0.0400 (6) | −0.0036 (5) | −0.0081 (5) | 0.0025 (5) |
C13 | 0.0483 (8) | 0.0712 (10) | 0.0847 (12) | −0.0031 (7) | 0.0098 (8) | 0.0087 (9) |
C14 | 0.0584 (10) | 0.0983 (16) | 0.1135 (17) | 0.0163 (10) | 0.0255 (10) | 0.0017 (13) |
C15 | 0.0693 (12) | 0.0831 (13) | 0.1018 (15) | 0.0267 (10) | −0.0038 (10) | −0.0202 (11) |
C16 | 0.0639 (10) | 0.0571 (9) | 0.1021 (14) | 0.0026 (8) | −0.0138 (9) | −0.0147 (9) |
C17 | 0.0485 (8) | 0.0558 (8) | 0.0685 (9) | −0.0080 (6) | 0.0002 (7) | −0.0080 (7) |
C18 | 0.0531 (7) | 0.0427 (7) | 0.0476 (7) | −0.0077 (6) | 0.0080 (6) | −0.0022 (5) |
C19 | 0.0756 (10) | 0.0728 (10) | 0.0521 (8) | −0.0055 (8) | −0.0031 (7) | 0.0214 (7) |
C20 | 0.0807 (12) | 0.1220 (16) | 0.0467 (9) | −0.0197 (11) | 0.0016 (8) | 0.0062 (9) |
C21 | 0.0462 (7) | 0.0372 (6) | 0.0424 (6) | −0.0089 (5) | −0.0010 (5) | −0.0027 (5) |
C22 | 0.0443 (6) | 0.0419 (6) | 0.0430 (6) | −0.0025 (5) | 0.0029 (5) | −0.0030 (5) |
C23 | 0.0579 (8) | 0.0568 (8) | 0.0518 (8) | −0.0168 (6) | 0.0020 (6) | −0.0002 (6) |
C24 | 0.0652 (9) | 0.0736 (10) | 0.0566 (9) | −0.0149 (8) | 0.0087 (7) | 0.0130 (8) |
C25 | 0.0656 (9) | 0.0780 (11) | 0.0440 (8) | 0.0082 (8) | 0.0107 (7) | −0.0014 (7) |
C26 | 0.0753 (10) | 0.0596 (9) | 0.0489 (8) | 0.0073 (7) | −0.0004 (7) | −0.0188 (7) |
C27 | 0.0654 (9) | 0.0428 (7) | 0.0514 (8) | −0.0055 (6) | 0.0025 (6) | −0.0085 (6) |
N1 | 0.0415 (5) | 0.0405 (5) | 0.0347 (5) | −0.0073 (4) | −0.0034 (4) | −0.0013 (4) |
O1 | 0.0744 (7) | 0.0620 (6) | 0.0700 (7) | −0.0369 (5) | −0.0074 (5) | −0.0056 (5) |
O2 | 0.0769 (7) | 0.0583 (6) | 0.0731 (7) | −0.0273 (5) | 0.0042 (6) | 0.0116 (5) |
O3 | 0.0599 (6) | 0.0546 (5) | 0.0427 (5) | −0.0073 (4) | −0.0006 (4) | 0.0081 (4) |
O4 | 0.0445 (5) | 0.0718 (7) | 0.0530 (6) | −0.0128 (5) | −0.0049 (4) | 0.0030 (5) |
C1—N1 | 1.4798 (15) | C14—H14 | 0.9300 |
C1—C12 | 1.5197 (19) | C15—C16 | 1.369 (3) |
C1—C2 | 1.5237 (18) | C15—H15 | 0.9300 |
C1—H1 | 0.9800 | C16—C17 | 1.379 (2) |
C2—C3 | 1.4831 (19) | C16—H16 | 0.9300 |
C2—H2A | 0.9700 | C17—H17 | 0.9300 |
C2—H2B | 0.9700 | C18—O2 | 1.2263 (16) |
C3—O1 | 1.3397 (15) | C18—O3 | 1.3315 (17) |
C3—C4 | 1.3531 (18) | C19—O3 | 1.4545 (16) |
C4—C18 | 1.4543 (18) | C19—C20 | 1.484 (2) |
C4—C5 | 1.5145 (16) | C19—H19A | 0.9700 |
C5—N1 | 1.4751 (14) | C19—H19B | 0.9700 |
C5—C6 | 1.5315 (16) | C20—H20A | 0.9600 |
C5—H5 | 0.9800 | C20—H20B | 0.9600 |
C6—C7 | 1.3812 (19) | C20—H20C | 0.9600 |
C6—C11 | 1.3852 (18) | C21—O4 | 1.2276 (15) |
C7—C8 | 1.385 (2) | C21—N1 | 1.3597 (16) |
C7—H7 | 0.9300 | C21—C22 | 1.4976 (17) |
C8—C9 | 1.367 (3) | C22—C23 | 1.3833 (19) |
C8—H8 | 0.9300 | C22—C27 | 1.3863 (18) |
C9—C10 | 1.372 (3) | C23—C24 | 1.387 (2) |
C9—H9 | 0.9300 | C23—H23 | 0.9300 |
C10—C11 | 1.383 (2) | C24—C25 | 1.371 (2) |
C10—H10 | 0.9300 | C24—H24 | 0.9300 |
C11—H11 | 0.9300 | C25—C26 | 1.372 (2) |
C12—C17 | 1.3782 (19) | C25—H25 | 0.9300 |
C12—C13 | 1.383 (2) | C26—C27 | 1.382 (2) |
C13—C14 | 1.381 (3) | C26—H26 | 0.9300 |
C13—H13 | 0.9300 | C27—H27 | 0.9300 |
C14—C15 | 1.359 (3) | O1—H1A | 0.8200 |
N1—C1—C12 | 111.53 (9) | C14—C15—C16 | 119.40 (17) |
N1—C1—C2 | 108.76 (10) | C14—C15—H15 | 120.3 |
C12—C1—C2 | 114.90 (11) | C16—C15—H15 | 120.3 |
N1—C1—H1 | 107.1 | C15—C16—C17 | 120.01 (18) |
C12—C1—H1 | 107.1 | C15—C16—H16 | 120.0 |
C2—C1—H1 | 107.1 | C17—C16—H16 | 120.0 |
C3—C2—C1 | 113.62 (10) | C12—C17—C16 | 121.14 (15) |
C3—C2—H2A | 108.8 | C12—C17—H17 | 119.4 |
C1—C2—H2A | 108.8 | C16—C17—H17 | 119.4 |
C3—C2—H2B | 108.8 | O2—C18—O3 | 122.55 (12) |
C1—C2—H2B | 108.8 | O2—C18—C4 | 124.16 (13) |
H2A—C2—H2B | 107.7 | O3—C18—C4 | 113.28 (11) |
O1—C3—C4 | 123.70 (12) | O3—C19—C20 | 109.75 (14) |
O1—C3—C2 | 112.47 (11) | O3—C19—H19A | 109.7 |
C4—C3—C2 | 123.74 (11) | C20—C19—H19A | 109.7 |
C3—C4—C18 | 118.69 (11) | O3—C19—H19B | 109.7 |
C3—C4—C5 | 122.01 (11) | C20—C19—H19B | 109.7 |
C18—C4—C5 | 118.95 (11) | H19A—C19—H19B | 108.2 |
N1—C5—C4 | 109.42 (9) | C19—C20—H20A | 109.5 |
N1—C5—C6 | 113.34 (9) | C19—C20—H20B | 109.5 |
C4—C5—C6 | 115.47 (10) | H20A—C20—H20B | 109.5 |
N1—C5—H5 | 105.9 | C19—C20—H20C | 109.5 |
C4—C5—H5 | 105.9 | H20A—C20—H20C | 109.5 |
C6—C5—H5 | 105.9 | H20B—C20—H20C | 109.5 |
C7—C6—C11 | 118.09 (12) | O4—C21—N1 | 122.22 (11) |
C7—C6—C5 | 122.82 (11) | O4—C21—C22 | 118.89 (11) |
C11—C6—C5 | 118.96 (11) | N1—C21—C22 | 118.87 (11) |
C6—C7—C8 | 121.02 (14) | C23—C22—C27 | 119.20 (13) |
C6—C7—H7 | 119.5 | C23—C22—C21 | 118.91 (12) |
C8—C7—H7 | 119.5 | C27—C22—C21 | 121.59 (12) |
C9—C8—C7 | 120.12 (16) | C22—C23—C24 | 120.09 (14) |
C9—C8—H8 | 119.9 | C22—C23—H23 | 120.0 |
C7—C8—H8 | 119.9 | C24—C23—H23 | 120.0 |
C8—C9—C10 | 119.73 (14) | C25—C24—C23 | 120.07 (15) |
C8—C9—H9 | 120.1 | C25—C24—H24 | 120.0 |
C10—C9—H9 | 120.1 | C23—C24—H24 | 120.0 |
C9—C10—C11 | 120.26 (15) | C24—C25—C26 | 120.31 (14) |
C9—C10—H10 | 119.9 | C24—C25—H25 | 119.8 |
C11—C10—H10 | 119.9 | C26—C25—H25 | 119.8 |
C10—C11—C6 | 120.77 (14) | C25—C26—C27 | 120.03 (14) |
C10—C11—H11 | 119.6 | C25—C26—H26 | 120.0 |
C6—C11—H11 | 119.6 | C27—C26—H26 | 120.0 |
C17—C12—C13 | 118.23 (14) | C26—C27—C22 | 120.27 (14) |
C17—C12—C1 | 118.10 (12) | C26—C27—H27 | 119.9 |
C13—C12—C1 | 123.64 (13) | C22—C27—H27 | 119.9 |
C14—C13—C12 | 120.02 (17) | C21—N1—C5 | 118.15 (10) |
C14—C13—H13 | 120.0 | C21—N1—C1 | 124.93 (10) |
C12—C13—H13 | 120.0 | C5—N1—C1 | 116.82 (9) |
C15—C14—C13 | 121.17 (18) | C3—O1—H1A | 109.5 |
C15—C14—H14 | 119.4 | C18—O3—C19 | 118.01 (12) |
C13—C14—H14 | 119.4 | ||
N1—C1—C2—C3 | −39.33 (16) | C1—C12—C17—C16 | −179.77 (14) |
C12—C1—C2—C3 | 86.47 (15) | C15—C16—C17—C12 | 0.1 (3) |
C1—C2—C3—O1 | −170.79 (12) | C3—C4—C18—O2 | 8.2 (2) |
C1—C2—C3—C4 | 12.3 (2) | C5—C4—C18—O2 | −178.52 (12) |
O1—C3—C4—C18 | −3.4 (2) | C3—C4—C18—O3 | −170.63 (12) |
C2—C3—C4—C18 | 173.15 (13) | C5—C4—C18—O3 | 2.68 (17) |
O1—C3—C4—C5 | −176.51 (12) | O4—C21—C22—C23 | 57.04 (17) |
C2—C3—C4—C5 | 0.1 (2) | N1—C21—C22—C23 | −124.55 (13) |
C3—C4—C5—N1 | 15.95 (16) | O4—C21—C22—C27 | −116.66 (15) |
C18—C4—C5—N1 | −157.13 (11) | N1—C21—C22—C27 | 61.75 (17) |
C3—C4—C5—C6 | −113.35 (13) | C27—C22—C23—C24 | −1.6 (2) |
C18—C4—C5—C6 | 73.57 (14) | C21—C22—C23—C24 | −175.44 (13) |
N1—C5—C6—C7 | −130.38 (13) | C22—C23—C24—C25 | 1.5 (2) |
C4—C5—C6—C7 | −3.03 (17) | C23—C24—C25—C26 | −0.3 (2) |
N1—C5—C6—C11 | 53.88 (14) | C24—C25—C26—C27 | −0.8 (2) |
C4—C5—C6—C11 | −178.77 (11) | C25—C26—C27—C22 | 0.6 (2) |
C11—C6—C7—C8 | 0.4 (2) | C23—C22—C27—C26 | 0.5 (2) |
C5—C6—C7—C8 | −175.42 (14) | C21—C22—C27—C26 | 174.22 (13) |
C6—C7—C8—C9 | −1.0 (3) | O4—C21—N1—C5 | 11.51 (17) |
C7—C8—C9—C10 | 1.0 (3) | C22—C21—N1—C5 | −166.85 (10) |
C8—C9—C10—C11 | −0.3 (3) | O4—C21—N1—C1 | −172.21 (11) |
C9—C10—C11—C6 | −0.4 (2) | C22—C21—N1—C1 | 9.43 (17) |
C7—C6—C11—C10 | 0.3 (2) | C4—C5—N1—C21 | 129.05 (11) |
C5—C6—C11—C10 | 176.29 (13) | C6—C5—N1—C21 | −100.50 (12) |
N1—C1—C12—C17 | −68.07 (15) | C4—C5—N1—C1 | −47.53 (13) |
C2—C1—C12—C17 | 167.57 (11) | C6—C5—N1—C1 | 82.92 (12) |
N1—C1—C12—C13 | 113.98 (14) | C12—C1—N1—C21 | 116.28 (12) |
C2—C1—C12—C13 | −10.38 (18) | C2—C1—N1—C21 | −115.98 (13) |
C17—C12—C13—C14 | 1.8 (2) | C12—C1—N1—C5 | −67.39 (13) |
C1—C12—C13—C14 | 179.77 (16) | C2—C1—N1—C5 | 60.35 (13) |
C12—C13—C14—C15 | −0.4 (3) | O2—C18—O3—C19 | 4.6 (2) |
C13—C14—C15—C16 | −1.3 (3) | C4—C18—O3—C19 | −176.56 (12) |
C14—C15—C16—C17 | 1.4 (3) | C20—C19—O3—C18 | 90.67 (17) |
C13—C12—C17—C16 | −1.7 (2) |
Experimental details
Crystal data | |
Chemical formula | C27H25NO4 |
Mr | 427.48 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 8.2784 (7), 10.6116 (9), 12.7572 (11) |
α, β, γ (°) | 85.681 (4), 89.963 (4), 82.508 (5) |
V (Å3) | 1107.91 (16) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.25 × 0.23 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART APEXII area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.979, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 20295, 5526, 4179 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.669 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.120, 1.04 |
No. of reflections | 5526 |
No. of parameters | 290 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.15 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
Acknowledgements
This research was supported by the Industrial Technology Development Program, which was conducted by the Ministry of Knowledge Economy of the Korean Government. SS and DV thank the TBI X-ray Facility, CAS in Crystallography and Biophysics, University of Madras, India, for the data collection and the University Grants Commission (UGC&SAP) for financial support.
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.
Owing to the relevance of piperidine-containing bioactive compounds, the development of new piperidine based derivatives continues to be a subject of considerable interest. The pharmacological effects of potential new drugs depend entirely on the stereochemistry and ring conformations of the compounds and hence the crystallographic study of the title compound has been carried out.
The ORTEP diagram of the title compound is shown in Fig. 1. The tetrahydropyridine ring adopts a half-chair conformation. The puckering parameters (Cremer & Pople, 1975) and the smallest displacement asymmetry parameters (Nardelli, 1983) for this ring are q2 = 0.344 (1) Å, q3 = -0.288 (1) Å; QT = 0.4485 Å and θ = 130.02 (2)°, ϕ2 = 205.6 (2)°, respectively. The three phenyl rings are twisted away from the best plane of the tetrahydropyridine ring by 66.33 (7), 87.36 (8) and 36.90 (7)°, respectively. The sum of the bond angles around the atom N1 [360.09 (10)°] of the tetrahydropyridine ring in the molecule is in accordance with sp2 hybridization. The ethyl acetate group shows an extended conformation [C18—O3—C19—C20 = 90.67 (2)°]. The molecular structure is stabilized by a strong O—H···O hydrogen bond, wherein, atom O1 acts as a donor to O2, generating an S(6) motif.