organic compounds
8-(2-Chlorophenyl)-1-(4-chlorophenyl)-4-[(E)-(2-chlorophenyl)methylidene]-6-methyl-4,5,6,7,7a,8-hexahydro-1,2,4-oxadiazolo[5,4-d]pyrido[3,4-c][1,5]benzothiazepine
aDepartment of Physics, Thiagarajar College, Madurai 625 009, India, bDepartment of Physics, The Standard Fireworks Rajaratnam College for Women, Sivakasi 626 123, India, and cDepartment of Physics, Saraswathy Narayanan College, Madurai 625 022, India
*Correspondence e-mail: vasan692000@yahoo.co.in
In the title compound, C33H26Cl3N3OS, the oxadiazole, piperidine and benzothiapezine rings adopt envelope, chair and twist-boat conformations, respectively. In the crystal, the molecular aggregation is characterized by chains of centrosymmetrically related pairs connected through Cl⋯Cl interactions [3.533 (2) Å], extending parallel to (202).
Related literature
For the biological importance of benziothiazepines and oxadiazol derivatives, see: Budriesi et al. (2007); Sahin et al. (2002). For ring geometry, see: Boeyens (1978); Cremer & Pople (1975). For a related structure, see: Srinivasan et al. (2007).
Experimental
Crystal data
|
Data collection: APEX2 (Bruker, 2004); cell SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810013309/nc2178sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810013309/nc2178Isup2.hkl
2-Methyl-11-(2-chlorophenyl)-4-[(E)-(2-chlorophenyl)methylidene]- 1,2,3,4,11,11a-hexahydro-pyrido[3,4-c][1,5]benzothiazepines (1 mmol) and 4-chloro-N-hydroxybenzenecarboximidoyl chloride (1 mmol) were dissolved in benzene (15 ml). Triethylamine (1 mmol) was added to the mixture and refluxed for 20 to 30 min. After completion of the reaction as evident from thin layer
the triethylamine hydrochloride was filtered off, solvent evaporated, product was purified by using petroleum ether:ethyl acetate (90:10 v/v) mixture and finally recrystallized from ethyl acetate to obtain pure 1-(4-chlorophenyl)-8-(2-chlorophenyl) -4-[(E)-(2-chlorophenyl)methylidene]-6-methyl-4,5,6,7,7a,8- hexahydro[1,2,4]oxa-diazolo[5,4-d]pyrido[3,4-c][1,5] benzothiazepine as colorless crystals.H atoms were positioned geometrically and refined using a riding model with C—H = 0.95–0.99 Å and with Uiso(H) = 1.2 (1.5 for methyl groups) times Ueq(C).
The title compound, C33H26N3OCl3 S, belongs to an important class of heterocycles which exhibit antihypertensive properties. The compound consists of a benzothiazepine, a oxadiazole and a methyl piperidine ring. Benziothiazepines are regarded as a class of calcium channel blockers (Budriesi et al., 2007), oxadiazol derivatives are established as micobicides (Sahin et al., 2002) and piperidines are established as key components of anti-Parkinson's drugs. Accurate description of the molecular geometry of such molecules are indispensable to proceed with the pharmacological investigations which may prove useful in the design of drugs with a wide range of activities. Also, the role of non-conventional hydrogen bonds viz. C—H···X (X= N, O, Cl, F, etc.) in influencing the geometry of the molecular packing can be unambiguously assessed. Recently, an anlogue of the title compound namely, the
of 1-(4-chlorophenyl)- 8-(4-fluorophenyl)-4-[(E)-(4-fluorophenyl)methylidene]-6-methyl-4,5,6,7,7a, 8-hexahydro[1,2,4]oxadiazolo[5,4-d]pyrido [3,4-c][1,5] benzothiazepine (Srinivasan et al., 2007) was elucidated.A least-squares plane calculations show that the 2-chlorophenyl attached to thiazepine, 2-chlorophenyl attached to piperidine and 4-chlorophenyl ring of the oxadiazole ring make a dihedral angle of 34.8 (1) °, 51.3 (1) ° and 73.9 (1) °, respectively, with respect to the benzene fused to the thiazepine ring. The torsion angles about the methylidene bond C4—C40—C41—C42 = 39.8 (2) ° and C4—C40—C41—C46 = -141.8 (2) ° indicates a significant twist of the 2-chlorophenyl ring which may be attributed to steric factors. These values that describe the molecular geometry slightly differ from those observed in the 4-fluoro-4-fluoro- 4-chloro analogue (Srinivasan et al., 2007). The oxadiazole, piperidine and benzothiapezine rings adopt the usually expected envelope, chair and twist-boat conformations, respectively. The molecular aggreagation is characterized by linear chains of centrosymmetrically related pairs extending parallel to the (202) plane and connected through Cl···Cl interactions [Cl1···Cl2(-x+1,-y,-z+2) = 3.533 (2) Å. Other Cl···Cl distances observed are Cl2···Cl2(-x+1,-y+1,-z+1) = 3.826 (2) Å and Cl1···Cl3(x,+y-1,+z+1) = 3.952 (2) Å.
For the biological importance of benziothiazepines and oxadiazol derivatives, see: Budriesi et al. (2007); Sahin et al. (2002).For ring geometry, see: Boeyens (1978); Cremer & Pople (1975). For a related structure, see: Srinivasan et al. (2007).
Data collection: APEX2 (Bruker, 2004); cell
SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C33H26Cl3N3OS | Z = 2 |
Mr = 618.98 | F(000) = 640 |
Triclinic, P1 | Dx = 1.378 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 11.015 (3) Å | Cell parameters from 4125 reflections |
b = 11.758 (4) Å | θ = 2.0–30.0° |
c = 11.988 (4) Å | µ = 0.41 mm−1 |
α = 78.87 (2)° | T = 298 K |
β = 86.89 (3)° | Needle, colourless |
γ = 78.29 (2)° | 0.30 × 0.15 × 0.15 mm |
V = 1491.5 (8) Å3 |
Bruker Kappa APEXII CCD diffractometer | 11096 independent reflections |
Radiation source: fine-focus sealed tube | 7867 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
ω and φ scan | θmax = 33.0°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −16→16 |
Tmin = 0.90, Tmax = 0.94 | k = −17→17 |
42055 measured reflections | l = −18→18 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.146 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0605P)2 + 0.6302P] where P = (Fo2 + 2Fc2)/3 |
11096 reflections | (Δ/σ)max = 0.001 |
372 parameters | Δρmax = 0.64 e Å−3 |
0 restraints | Δρmin = −0.62 e Å−3 |
C33H26Cl3N3OS | γ = 78.29 (2)° |
Mr = 618.98 | V = 1491.5 (8) Å3 |
Triclinic, P1 | Z = 2 |
a = 11.015 (3) Å | Mo Kα radiation |
b = 11.758 (4) Å | µ = 0.41 mm−1 |
c = 11.988 (4) Å | T = 298 K |
α = 78.87 (2)° | 0.30 × 0.15 × 0.15 mm |
β = 86.89 (3)° |
Bruker Kappa APEXII CCD diffractometer | 11096 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 7867 reflections with I > 2σ(I) |
Tmin = 0.90, Tmax = 0.94 | Rint = 0.023 |
42055 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.146 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.64 e Å−3 |
11096 reflections | Δρmin = −0.62 e Å−3 |
372 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. |
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 | ||
Cl1 | 0.57470 (7) | −0.12556 (6) | 1.22882 (7) | 0.0878 (2) | |
Cl2 | 0.55422 (5) | 0.34566 (6) | 0.58843 (6) | 0.07294 (17) | |
Cl3 | 0.71901 (7) | 0.77874 (5) | 0.53545 (4) | 0.0769 (2) | |
C1 | 0.85278 (14) | 0.22540 (11) | 0.96401 (12) | 0.0336 (3) | |
N2 | 0.97082 (12) | 0.20144 (11) | 0.95229 (12) | 0.0404 (3) | |
O3 | 1.00715 (9) | 0.30577 (9) | 0.89247 (9) | 0.0378 (2) | |
C3A | 0.89581 (12) | 0.37735 (11) | 0.83332 (11) | 0.0300 (2) | |
C4 | 0.89945 (13) | 0.33994 (11) | 0.71870 (12) | 0.0320 (3) | |
C5 | 1.01522 (14) | 0.36089 (13) | 0.65093 (13) | 0.0368 (3) | |
H5A | 1.0857 | 0.3030 | 0.6843 | 0.044* | |
H5B | 1.0069 | 0.3495 | 0.5739 | 0.044* | |
N6 | 1.03901 (12) | 0.48001 (11) | 0.64726 (10) | 0.0353 (2) | |
C7 | 1.03493 (13) | 0.51369 (13) | 0.75868 (13) | 0.0355 (3) | |
H7A | 1.0489 | 0.5938 | 0.7497 | 0.043* | |
H7B | 1.1005 | 0.4617 | 0.8053 | 0.043* | |
C7A | 0.90965 (12) | 0.50621 (11) | 0.81809 (12) | 0.0307 (2) | |
H71A | 0.9104 | 0.5276 | 0.8931 | 0.037* | |
C8 | 0.80644 (13) | 0.59400 (11) | 0.74674 (12) | 0.0315 (2) | |
H8 | 0.8252 | 0.5869 | 0.6672 | 0.038* | |
S9 | 0.65096 (3) | 0.56089 (3) | 0.77852 (3) | 0.03747 (9) | |
C9A | 0.65984 (13) | 0.52634 (12) | 0.92758 (13) | 0.0333 (3) | |
C10 | 0.59577 (15) | 0.60462 (13) | 0.99383 (16) | 0.0439 (3) | |
H10 | 0.5521 | 0.6780 | 0.9589 | 0.053* | |
C11 | 0.59637 (17) | 0.57444 (16) | 1.11118 (17) | 0.0484 (4) | |
H11 | 0.5521 | 0.6266 | 1.1549 | 0.058* | |
C12 | 0.66289 (16) | 0.46670 (16) | 1.16287 (14) | 0.0437 (3) | |
H12 | 0.6613 | 0.4453 | 1.2417 | 0.052* | |
C13 | 0.73233 (14) | 0.38968 (13) | 1.09826 (13) | 0.0368 (3) | |
H13 | 0.7803 | 0.3188 | 1.1340 | 0.044* | |
C13A | 0.73021 (12) | 0.41847 (11) | 0.98022 (12) | 0.0303 (2) | |
N14 | 0.79641 (11) | 0.34047 (9) | 0.91010 (10) | 0.0300 (2) | |
C61 | 1.15951 (16) | 0.48759 (16) | 0.59264 (15) | 0.0462 (4) | |
H61A | 1.1759 | 0.5652 | 0.5899 | 0.069* | |
H61B | 1.1591 | 0.4726 | 0.5168 | 0.069* | |
H61C | 1.2229 | 0.4299 | 0.6354 | 0.069* | |
C1E | 0.78313 (14) | 0.13884 (11) | 1.02695 (12) | 0.0350 (3) | |
C2E | 0.65779 (16) | 0.15047 (14) | 1.01121 (16) | 0.0458 (4) | |
H2E | 0.6168 | 0.2127 | 0.9579 | 0.055* | |
C3E | 0.59237 (19) | 0.07021 (16) | 1.07412 (19) | 0.0555 (5) | |
H3E | 0.5074 | 0.0796 | 1.0650 | 0.067* | |
C4E | 0.6548 (2) | −0.02356 (15) | 1.15020 (17) | 0.0527 (4) | |
C5E | 0.7800 (2) | −0.03845 (15) | 1.16498 (16) | 0.0529 (4) | |
H5E | 0.8211 | −0.1032 | 1.2156 | 0.063* | |
C6E | 0.84464 (17) | 0.04309 (13) | 1.10441 (14) | 0.0443 (3) | |
H6E | 0.9293 | 0.0341 | 1.1153 | 0.053* | |
C40 | 0.80948 (15) | 0.29252 (12) | 0.68793 (12) | 0.0364 (3) | |
H40 | 0.7441 | 0.2867 | 0.7398 | 0.044* | |
C41 | 0.79968 (17) | 0.24807 (13) | 0.58271 (13) | 0.0419 (3) | |
C42 | 0.9013 (2) | 0.18426 (17) | 0.53161 (17) | 0.0557 (5) | |
H42 | 0.9788 | 0.1682 | 0.5647 | 0.067* | |
C43 | 0.8879 (3) | 0.1446 (2) | 0.4319 (2) | 0.0757 (7) | |
H43 | 0.9568 | 0.1037 | 0.3980 | 0.091* | |
C44 | 0.7738 (3) | 0.1654 (2) | 0.38322 (19) | 0.0815 (8) | |
H44 | 0.7656 | 0.1387 | 0.3164 | 0.098* | |
C45 | 0.6718 (3) | 0.2253 (2) | 0.43257 (18) | 0.0690 (6) | |
H45 | 0.5942 | 0.2383 | 0.4002 | 0.083* | |
C46 | 0.68514 (19) | 0.26646 (16) | 0.53113 (15) | 0.0503 (4) | |
C81 | 0.80119 (13) | 0.72208 (12) | 0.75331 (12) | 0.0336 (3) | |
C82 | 0.82787 (18) | 0.75779 (14) | 0.85131 (15) | 0.0460 (4) | |
H82 | 0.8572 | 0.7006 | 0.9140 | 0.055* | |
C83 | 0.8122 (2) | 0.87629 (16) | 0.85885 (19) | 0.0585 (5) | |
H83 | 0.8297 | 0.8974 | 0.9262 | 0.070* | |
C84 | 0.7708 (2) | 0.96217 (16) | 0.7669 (2) | 0.0635 (5) | |
H84 | 0.7607 | 1.0416 | 0.7717 | 0.076* | |
C85 | 0.7445 (2) | 0.93064 (15) | 0.66774 (18) | 0.0598 (5) | |
H85 | 0.7168 | 0.9885 | 0.6050 | 0.072* | |
C86 | 0.75923 (17) | 0.81224 (14) | 0.66168 (14) | 0.0436 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.1016 (5) | 0.0606 (3) | 0.0984 (5) | −0.0388 (3) | 0.0198 (4) | 0.0104 (3) |
Cl2 | 0.0590 (3) | 0.0861 (4) | 0.0774 (4) | −0.0188 (3) | −0.0099 (3) | −0.0169 (3) |
Cl3 | 0.1281 (5) | 0.0532 (3) | 0.0411 (2) | 0.0047 (3) | −0.0262 (3) | −0.0051 (2) |
C1 | 0.0396 (7) | 0.0255 (5) | 0.0314 (6) | 0.0003 (5) | 0.0013 (5) | −0.0025 (5) |
N2 | 0.0403 (6) | 0.0324 (6) | 0.0411 (7) | 0.0011 (5) | 0.0000 (5) | 0.0022 (5) |
O3 | 0.0318 (5) | 0.0364 (5) | 0.0399 (5) | −0.0018 (4) | −0.0024 (4) | 0.0015 (4) |
C3A | 0.0312 (6) | 0.0271 (5) | 0.0302 (6) | −0.0029 (4) | −0.0011 (5) | −0.0043 (4) |
C4 | 0.0377 (7) | 0.0256 (5) | 0.0318 (6) | −0.0046 (5) | 0.0018 (5) | −0.0054 (4) |
C5 | 0.0399 (7) | 0.0343 (6) | 0.0366 (7) | −0.0070 (5) | 0.0049 (6) | −0.0091 (5) |
N6 | 0.0375 (6) | 0.0350 (6) | 0.0335 (6) | −0.0097 (5) | 0.0018 (5) | −0.0044 (4) |
C7 | 0.0357 (7) | 0.0349 (6) | 0.0371 (7) | −0.0096 (5) | −0.0016 (5) | −0.0067 (5) |
C7A | 0.0334 (6) | 0.0278 (5) | 0.0314 (6) | −0.0065 (5) | −0.0025 (5) | −0.0055 (5) |
C8 | 0.0366 (6) | 0.0276 (5) | 0.0303 (6) | −0.0060 (5) | −0.0027 (5) | −0.0048 (4) |
S9 | 0.03504 (17) | 0.03241 (16) | 0.0429 (2) | −0.00581 (13) | −0.00816 (14) | −0.00064 (13) |
C9A | 0.0302 (6) | 0.0275 (6) | 0.0415 (7) | −0.0045 (5) | 0.0010 (5) | −0.0063 (5) |
C10 | 0.0401 (8) | 0.0306 (6) | 0.0599 (10) | −0.0017 (6) | 0.0067 (7) | −0.0133 (6) |
C11 | 0.0483 (9) | 0.0447 (8) | 0.0581 (10) | −0.0099 (7) | 0.0122 (8) | −0.0266 (8) |
C12 | 0.0472 (8) | 0.0509 (9) | 0.0387 (8) | −0.0146 (7) | 0.0045 (6) | −0.0187 (7) |
C13 | 0.0387 (7) | 0.0368 (7) | 0.0357 (7) | −0.0069 (5) | −0.0009 (5) | −0.0092 (5) |
C13A | 0.0294 (6) | 0.0271 (5) | 0.0349 (6) | −0.0046 (4) | 0.0007 (5) | −0.0080 (5) |
N14 | 0.0330 (5) | 0.0231 (4) | 0.0310 (5) | −0.0016 (4) | 0.0021 (4) | −0.0031 (4) |
C61 | 0.0456 (8) | 0.0512 (9) | 0.0429 (8) | −0.0179 (7) | 0.0091 (7) | −0.0052 (7) |
C1E | 0.0426 (7) | 0.0238 (5) | 0.0351 (7) | −0.0006 (5) | 0.0046 (5) | −0.0046 (5) |
C2E | 0.0457 (8) | 0.0315 (7) | 0.0553 (10) | −0.0037 (6) | −0.0005 (7) | −0.0006 (6) |
C3E | 0.0514 (10) | 0.0409 (8) | 0.0724 (13) | −0.0125 (7) | 0.0056 (9) | −0.0042 (8) |
C4E | 0.0684 (12) | 0.0340 (7) | 0.0553 (10) | −0.0164 (7) | 0.0136 (9) | −0.0042 (7) |
C5E | 0.0704 (12) | 0.0319 (7) | 0.0474 (9) | −0.0029 (7) | 0.0042 (8) | 0.0057 (6) |
C6E | 0.0503 (9) | 0.0322 (7) | 0.0434 (8) | 0.0006 (6) | 0.0012 (7) | 0.0006 (6) |
C40 | 0.0456 (8) | 0.0308 (6) | 0.0342 (7) | −0.0119 (5) | 0.0033 (6) | −0.0062 (5) |
C41 | 0.0631 (10) | 0.0334 (7) | 0.0341 (7) | −0.0221 (7) | 0.0032 (7) | −0.0061 (5) |
C42 | 0.0753 (13) | 0.0449 (9) | 0.0521 (10) | −0.0158 (9) | 0.0077 (9) | −0.0201 (8) |
C43 | 0.118 (2) | 0.0592 (12) | 0.0582 (13) | −0.0252 (13) | 0.0204 (14) | −0.0288 (10) |
C44 | 0.141 (3) | 0.0757 (15) | 0.0429 (11) | −0.0470 (17) | 0.0015 (14) | −0.0220 (10) |
C45 | 0.1051 (18) | 0.0694 (13) | 0.0436 (10) | −0.0437 (13) | −0.0145 (11) | −0.0061 (9) |
C46 | 0.0713 (12) | 0.0456 (8) | 0.0402 (8) | −0.0299 (8) | −0.0033 (8) | −0.0028 (7) |
C81 | 0.0385 (7) | 0.0273 (5) | 0.0346 (7) | −0.0064 (5) | −0.0007 (5) | −0.0051 (5) |
C82 | 0.0612 (10) | 0.0329 (7) | 0.0447 (8) | −0.0057 (7) | −0.0120 (7) | −0.0100 (6) |
C83 | 0.0764 (13) | 0.0389 (8) | 0.0653 (12) | −0.0070 (8) | −0.0167 (10) | −0.0223 (8) |
C84 | 0.0848 (15) | 0.0293 (7) | 0.0776 (14) | −0.0098 (8) | −0.0056 (11) | −0.0131 (8) |
C85 | 0.0850 (14) | 0.0296 (7) | 0.0580 (11) | −0.0053 (8) | −0.0037 (10) | 0.0032 (7) |
C86 | 0.0584 (10) | 0.0328 (7) | 0.0365 (7) | −0.0057 (6) | −0.0010 (7) | −0.0022 (5) |
Cl1—C4E | 1.7345 (19) | C13A—N14 | 1.4279 (17) |
Cl2—C46 | 1.736 (2) | C61—H61A | 0.9600 |
Cl3—C86 | 1.7364 (19) | C61—H61B | 0.9600 |
C1—N2 | 1.279 (2) | C61—H61C | 0.9600 |
C1—N14 | 1.4138 (17) | C1E—C2E | 1.379 (2) |
C1—C1E | 1.467 (2) | C1E—C6E | 1.394 (2) |
N2—O3 | 1.4169 (17) | C2E—C3E | 1.386 (3) |
O3—C3A | 1.4698 (17) | C2E—H2E | 0.9300 |
C3A—N14 | 1.4708 (18) | C3E—C4E | 1.376 (3) |
C3A—C4 | 1.518 (2) | C3E—H3E | 0.9300 |
C3A—C7A | 1.5285 (19) | C4E—C5E | 1.371 (3) |
C4—C40 | 1.331 (2) | C5E—C6E | 1.381 (2) |
C4—C5 | 1.511 (2) | C5E—H5E | 0.9300 |
C5—N6 | 1.4684 (19) | C6E—H6E | 0.9300 |
C5—H5A | 0.9700 | C40—C41 | 1.472 (2) |
C5—H5B | 0.9700 | C40—H40 | 0.9300 |
N6—C61 | 1.459 (2) | C41—C46 | 1.394 (3) |
N6—C7 | 1.461 (2) | C41—C42 | 1.398 (3) |
C7—C7A | 1.529 (2) | C42—C43 | 1.389 (3) |
C7—H7A | 0.9700 | C42—H42 | 0.9300 |
C7—H7B | 0.9700 | C43—C44 | 1.372 (4) |
C7A—C8 | 1.5420 (19) | C43—H43 | 0.9300 |
C7A—H71A | 0.9800 | C44—C45 | 1.370 (4) |
C8—C81 | 1.5124 (19) | C44—H44 | 0.9300 |
C8—S9 | 1.8364 (16) | C45—C46 | 1.386 (3) |
C8—H8 | 0.9800 | C45—H45 | 0.9300 |
S9—C9A | 1.7580 (17) | C81—C82 | 1.386 (2) |
C9A—C10 | 1.391 (2) | C81—C86 | 1.397 (2) |
C9A—C13A | 1.3974 (19) | C82—C83 | 1.389 (2) |
C10—C11 | 1.383 (3) | C82—H82 | 0.9300 |
C10—H10 | 0.9300 | C83—C84 | 1.371 (3) |
C11—C12 | 1.377 (3) | C83—H83 | 0.9300 |
C11—H11 | 0.9300 | C84—C85 | 1.373 (3) |
C12—C13 | 1.389 (2) | C84—H84 | 0.9300 |
C12—H12 | 0.9300 | C85—C86 | 1.384 (2) |
C13—C13A | 1.390 (2) | C85—H85 | 0.9300 |
C13—H13 | 0.9300 | ||
N2—C1—N14 | 114.41 (13) | N6—C61—H61A | 109.5 |
N2—C1—C1E | 122.05 (12) | N6—C61—H61B | 109.5 |
N14—C1—C1E | 123.53 (13) | H61A—C61—H61B | 109.5 |
C1—N2—O3 | 106.95 (11) | N6—C61—H61C | 109.5 |
N2—O3—C3A | 105.63 (10) | H61A—C61—H61C | 109.5 |
O3—C3A—N14 | 101.63 (10) | H61B—C61—H61C | 109.5 |
O3—C3A—C4 | 105.55 (10) | C2E—C1E—C6E | 119.32 (15) |
N14—C3A—C4 | 113.86 (11) | C2E—C1E—C1 | 121.26 (13) |
O3—C3A—C7A | 106.44 (11) | C6E—C1E—C1 | 119.43 (15) |
N14—C3A—C7A | 117.54 (11) | C1E—C2E—C3E | 120.60 (16) |
C4—C3A—C7A | 110.41 (11) | C1E—C2E—H2E | 119.7 |
C40—C4—C5 | 126.87 (13) | C3E—C2E—H2E | 119.7 |
C40—C4—C3A | 121.26 (13) | C4E—C3E—C2E | 119.13 (19) |
C5—C4—C3A | 111.85 (12) | C4E—C3E—H3E | 120.4 |
N6—C5—C4 | 112.64 (11) | C2E—C3E—H3E | 120.4 |
N6—C5—H5A | 109.1 | C5E—C4E—C3E | 121.18 (16) |
C4—C5—H5A | 109.1 | C5E—C4E—Cl1 | 119.05 (15) |
N6—C5—H5B | 109.1 | C3E—C4E—Cl1 | 119.77 (17) |
C4—C5—H5B | 109.1 | C4E—C5E—C6E | 119.72 (16) |
H5A—C5—H5B | 107.8 | C4E—C5E—H5E | 120.1 |
C61—N6—C7 | 109.80 (12) | C6E—C5E—H5E | 120.1 |
C61—N6—C5 | 108.88 (12) | C5E—C6E—C1E | 120.02 (17) |
C7—N6—C5 | 113.90 (11) | C5E—C6E—H6E | 120.0 |
N6—C7—C7A | 110.94 (12) | C1E—C6E—H6E | 120.0 |
N6—C7—H7A | 109.5 | C4—C40—C41 | 128.64 (14) |
C7A—C7—H7A | 109.5 | C4—C40—H40 | 115.7 |
N6—C7—H7B | 109.5 | C41—C40—H40 | 115.7 |
C7A—C7—H7B | 109.5 | C46—C41—C42 | 117.06 (16) |
H7A—C7—H7B | 108.0 | C46—C41—C40 | 120.18 (16) |
C3A—C7A—C7 | 106.66 (11) | C42—C41—C40 | 122.74 (17) |
C3A—C7A—C8 | 113.68 (11) | C43—C42—C41 | 120.8 (2) |
C7—C7A—C8 | 109.23 (12) | C43—C42—H42 | 119.6 |
C3A—C7A—H71A | 109.1 | C41—C42—H42 | 119.6 |
C7—C7A—H71A | 109.1 | C44—C43—C42 | 120.4 (2) |
C8—C7A—H71A | 109.1 | C44—C43—H43 | 119.8 |
C81—C8—C7A | 114.25 (11) | C42—C43—H43 | 119.8 |
C81—C8—S9 | 108.47 (10) | C45—C44—C43 | 120.3 (2) |
C7A—C8—S9 | 113.89 (10) | C45—C44—H44 | 119.9 |
C81—C8—H8 | 106.6 | C43—C44—H44 | 119.9 |
C7A—C8—H8 | 106.6 | C44—C45—C46 | 119.5 (2) |
S9—C8—H8 | 106.6 | C44—C45—H45 | 120.3 |
C9A—S9—C8 | 98.49 (6) | C46—C45—H45 | 120.3 |
C10—C9A—C13A | 119.60 (14) | C45—C46—C41 | 122.0 (2) |
C10—C9A—S9 | 120.58 (12) | C45—C46—Cl2 | 117.89 (18) |
C13A—C9A—S9 | 119.82 (11) | C41—C46—Cl2 | 120.09 (14) |
C11—C10—C9A | 120.63 (15) | C82—C81—C86 | 116.15 (14) |
C11—C10—H10 | 119.7 | C82—C81—C8 | 122.89 (13) |
C9A—C10—H10 | 119.7 | C86—C81—C8 | 120.79 (13) |
C12—C11—C10 | 119.64 (15) | C81—C82—C83 | 122.09 (16) |
C12—C11—H11 | 120.2 | C81—C82—H82 | 119.0 |
C10—C11—H11 | 120.2 | C83—C82—H82 | 119.0 |
C11—C12—C13 | 120.55 (16) | C84—C83—C82 | 119.96 (18) |
C11—C12—H12 | 119.7 | C84—C83—H83 | 120.0 |
C13—C12—H12 | 119.7 | C82—C83—H83 | 120.0 |
C12—C13—C13A | 120.05 (14) | C83—C84—C85 | 119.84 (17) |
C12—C13—H13 | 120.0 | C83—C84—H84 | 120.1 |
C13A—C13—H13 | 120.0 | C85—C84—H84 | 120.1 |
C13—C13A—C9A | 119.41 (13) | C84—C85—C86 | 119.65 (17) |
C13—C13A—N14 | 122.17 (12) | C84—C85—H85 | 120.2 |
C9A—C13A—N14 | 118.41 (13) | C86—C85—H85 | 120.2 |
C1—N14—C13A | 117.65 (11) | C85—C86—C81 | 122.31 (16) |
C1—N14—C3A | 102.39 (10) | C85—C86—Cl3 | 117.21 (14) |
C13A—N14—C3A | 119.70 (11) | C81—C86—Cl3 | 120.46 (12) |
N14—C1—N2—O3 | 3.72 (17) | C9A—C13A—N14—C3A | 63.38 (17) |
C1E—C1—N2—O3 | −177.20 (13) | O3—C3A—N14—C1 | −26.29 (12) |
C1—N2—O3—C3A | −21.41 (15) | C4—C3A—N14—C1 | 86.69 (13) |
N2—O3—C3A—N14 | 29.51 (12) | C7A—C3A—N14—C1 | −141.96 (12) |
N2—O3—C3A—C4 | −89.57 (12) | O3—C3A—N14—C13A | 105.95 (12) |
N2—O3—C3A—C7A | 153.08 (11) | C4—C3A—N14—C13A | −141.07 (12) |
O3—C3A—C4—C40 | 119.11 (14) | C7A—C3A—N14—C13A | −9.72 (17) |
N14—C3A—C4—C40 | 8.51 (18) | N2—C1—C1E—C2E | −160.17 (16) |
C7A—C3A—C4—C40 | −126.24 (14) | N14—C1—C1E—C2E | 18.8 (2) |
O3—C3A—C4—C5 | −59.56 (14) | N2—C1—C1E—C6E | 20.0 (2) |
N14—C3A—C4—C5 | −170.17 (11) | N14—C1—C1E—C6E | −161.01 (14) |
C7A—C3A—C4—C5 | 55.08 (14) | C6E—C1E—C2E—C3E | 2.1 (3) |
C40—C4—C5—N6 | 132.87 (15) | C1—C1E—C2E—C3E | −177.78 (16) |
C3A—C4—C5—N6 | −48.55 (16) | C1E—C2E—C3E—C4E | −2.0 (3) |
C4—C5—N6—C61 | 173.08 (13) | C2E—C3E—C4E—C5E | 0.3 (3) |
C4—C5—N6—C7 | 50.17 (17) | C2E—C3E—C4E—Cl1 | −179.47 (16) |
C61—N6—C7—C7A | −179.84 (12) | C3E—C4E—C5E—C6E | 1.3 (3) |
C5—N6—C7—C7A | −57.44 (16) | Cl1—C4E—C5E—C6E | −178.92 (15) |
O3—C3A—C7A—C7 | 53.94 (13) | C4E—C5E—C6E—C1E | −1.2 (3) |
N14—C3A—C7A—C7 | 166.95 (11) | C2E—C1E—C6E—C5E | −0.4 (2) |
C4—C3A—C7A—C7 | −60.14 (14) | C1—C1E—C6E—C5E | 179.41 (15) |
O3—C3A—C7A—C8 | 174.39 (11) | C5—C4—C40—C41 | 0.6 (3) |
N14—C3A—C7A—C8 | −72.60 (15) | C3A—C4—C40—C41 | −177.89 (14) |
C4—C3A—C7A—C8 | 60.30 (15) | C4—C40—C41—C46 | −141.76 (17) |
N6—C7—C7A—C3A | 61.13 (14) | C4—C40—C41—C42 | 39.8 (2) |
N6—C7—C7A—C8 | −62.13 (14) | C46—C41—C42—C43 | 1.9 (3) |
C3A—C7A—C8—C81 | 166.54 (12) | C40—C41—C42—C43 | −179.61 (17) |
C7—C7A—C8—C81 | −74.47 (14) | C41—C42—C43—C44 | −1.4 (3) |
C3A—C7A—C8—S9 | 41.12 (14) | C42—C43—C44—C45 | −0.1 (4) |
C7—C7A—C8—S9 | 160.11 (9) | C43—C44—C45—C46 | 1.0 (4) |
C81—C8—S9—C9A | −85.63 (10) | C44—C45—C46—C41 | −0.5 (3) |
C7A—C8—S9—C9A | 42.81 (11) | C44—C45—C46—Cl2 | 178.16 (17) |
C8—S9—C9A—C10 | 106.47 (13) | C42—C41—C46—C45 | −1.0 (2) |
C8—S9—C9A—C13A | −74.58 (12) | C40—C41—C46—C45 | −179.52 (16) |
C13A—C9A—C10—C11 | −3.0 (2) | C42—C41—C46—Cl2 | −179.57 (13) |
S9—C9A—C10—C11 | 175.92 (13) | C40—C41—C46—Cl2 | 1.9 (2) |
C9A—C10—C11—C12 | 1.2 (3) | C7A—C8—C81—C82 | −35.1 (2) |
C10—C11—C12—C13 | 2.0 (3) | S9—C8—C81—C82 | 93.14 (16) |
C11—C12—C13—C13A | −3.2 (2) | C7A—C8—C81—C86 | 149.96 (14) |
C12—C13—C13A—C9A | 1.3 (2) | S9—C8—C81—C86 | −81.81 (16) |
C12—C13—C13A—N14 | −177.72 (13) | C86—C81—C82—C83 | 0.9 (3) |
C10—C9A—C13A—C13 | 1.8 (2) | C8—C81—C82—C83 | −174.28 (18) |
S9—C9A—C13A—C13 | −177.20 (11) | C81—C82—C83—C84 | −1.0 (3) |
C10—C9A—C13A—N14 | −179.17 (13) | C82—C83—C84—C85 | 0.3 (4) |
S9—C9A—C13A—N14 | 1.87 (17) | C83—C84—C85—C86 | 0.3 (4) |
N2—C1—N14—C13A | −118.19 (14) | C84—C85—C86—C81 | −0.4 (3) |
C1E—C1—N14—C13A | 62.74 (18) | C84—C85—C86—Cl3 | 177.80 (18) |
N2—C1—N14—C3A | 15.27 (16) | C82—C81—C86—C85 | −0.2 (3) |
C1E—C1—N14—C3A | −163.80 (13) | C8—C81—C86—C85 | 175.07 (17) |
C13—C13A—N14—C1 | 7.71 (19) | C82—C81—C86—Cl3 | −178.35 (14) |
C9A—C13A—N14—C1 | −171.33 (12) | C8—C81—C86—Cl3 | −3.1 (2) |
C13—C13A—N14—C3A | −117.57 (15) |
Experimental details
Crystal data | |
Chemical formula | C33H26Cl3N3OS |
Mr | 618.98 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 11.015 (3), 11.758 (4), 11.988 (4) |
α, β, γ (°) | 78.87 (2), 86.89 (3), 78.29 (2) |
V (Å3) | 1491.5 (8) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.41 |
Crystal size (mm) | 0.30 × 0.15 × 0.15 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.90, 0.94 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 42055, 11096, 7867 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.766 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.146, 1.03 |
No. of reflections | 11096 |
No. of parameters | 372 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.64, −0.62 |
Computer programs: APEX2 (Bruker, 2004), SAINT-Plus (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
Acknowledgements
The authors thank the Sophisticated Analytical Instrumentation Facility (SAIF), Indian Institute of Technology, Chennai, for the
data collection.References
Boeyens, J. C. A. (1978). J. Cryst. Mol. Struct. 8, 317-320. CrossRef Web of Science Google Scholar
Bruker (2004). APEX2 and SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Budriesi, R., Cosimelli, B., Ioan, P., Carosati, E., Ugenti, M. P. & Spisani, R. (2007). Curr. Med. Chem. 14, 279–287. Web of Science CrossRef PubMed CAS Google Scholar
Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358. CrossRef CAS Web of Science Google Scholar
Sahin, G., Palaska, E., Ekizoglu, M. & Ozalp, M. (2002). Il Farm. 57, 539–542. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Srinivasan, N., Sribala, R., Ranjith Kumar, R., Perumal, S. & Krishnakumar, R. V. (2007). Acta Cryst. E63, o4268. Web of Science CSD CrossRef IUCr Journals Google Scholar
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.
The title compound, C33H26N3OCl3 S, belongs to an important class of heterocycles which exhibit antihypertensive properties. The compound consists of a benzothiazepine, a oxadiazole and a methyl piperidine ring. Benziothiazepines are regarded as a class of calcium channel blockers (Budriesi et al., 2007), oxadiazol derivatives are established as micobicides (Sahin et al., 2002) and piperidines are established as key components of anti-Parkinson's drugs. Accurate description of the molecular geometry of such molecules are indispensable to proceed with the pharmacological investigations which may prove useful in the design of drugs with a wide range of activities. Also, the role of non-conventional hydrogen bonds viz. C—H···X (X= N, O, Cl, F, etc.) in influencing the geometry of the molecular packing can be unambiguously assessed. Recently, an anlogue of the title compound namely, the crystal structure of 1-(4-chlorophenyl)- 8-(4-fluorophenyl)-4-[(E)-(4-fluorophenyl)methylidene]-6-methyl-4,5,6,7,7a, 8-hexahydro[1,2,4]oxadiazolo[5,4-d]pyrido [3,4-c][1,5] benzothiazepine (Srinivasan et al., 2007) was elucidated.
A least-squares plane calculations show that the 2-chlorophenyl attached to thiazepine, 2-chlorophenyl attached to piperidine and 4-chlorophenyl ring of the oxadiazole ring make a dihedral angle of 34.8 (1) °, 51.3 (1) ° and 73.9 (1) °, respectively, with respect to the benzene fused to the thiazepine ring. The torsion angles about the methylidene bond C4—C40—C41—C42 = 39.8 (2) ° and C4—C40—C41—C46 = -141.8 (2) ° indicates a significant twist of the 2-chlorophenyl ring which may be attributed to steric factors. These values that describe the molecular geometry slightly differ from those observed in the 4-fluoro-4-fluoro- 4-chloro analogue (Srinivasan et al., 2007). The oxadiazole, piperidine and benzothiapezine rings adopt the usually expected envelope, chair and twist-boat conformations, respectively. The molecular aggreagation is characterized by linear chains of centrosymmetrically related pairs extending parallel to the (202) plane and connected through Cl···Cl interactions [Cl1···Cl2(-x+1,-y,-z+2) = 3.533 (2) Å. Other Cl···Cl distances observed are Cl2···Cl2(-x+1,-y+1,-z+1) = 3.826 (2) Å and Cl1···Cl3(x,+y-1,+z+1) = 3.952 (2) Å.