Literature DB >> 23634043

2-Amino-6-methyl-5-{5-[(naphthalen-2-yl-oxy)meth-yl]-1,3,4-oxadiazol-2-ylsulfan-yl}-4-(3-nitro-phen-yl)pyridine-3-carbonitrile.

Hoong-Kun Fun1, C S Chidan Kumar, Prescilla Patrao, A M A Khader, Balakrishna Kalluraya.   

Abstract

The asymmetric unit of the title compound, C26H18N6O4S, contains two independent mol-ecules (A and B). The dihedral angles between the oxadiazole ring and naphthalene ring system are 42.59 (14) and 6.88 (14) Å in mol-ecules A and B, respectively. The dihedral angles between the pyridine and benzene rings in A and B are 65.53 (13 )and 87.67 (13) Å, respectively. In the crystal, mol-ecules A and B are linked through a pair of N-H⋯N hydrogen bonds involving one -NH2 group H atom and second pair of N-H⋯N hydrogen bonds involving the other -NH2 group H atom, forming an -ABAB- ribbon along [100] containing R 2 (2)(8) and R 2 (2)(12) ring motifs. These ribbons are further connected by weak C-H⋯N, C-H⋯O and C-H⋯π inter-actions, resulting in a three-dimensional network. The crystal studied was a non-merohedral twin with refined components 0.906 (1):0.094 (1).

Entities:  

Year:  2013        PMID: 23634043      PMCID: PMC3629525          DOI: 10.1107/S1600536813005837

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For background to pyridine chemistry, see: Youngdale (1980 ▶, 1982 ▶); Todd (1970a ▶,b ▶); Lohaus et al. (1968 ▶, 1970 ▶); Gachet et al. (1995 ▶); Yao et al. (1994 ▶); Umemura et al. (1995 ▶). For background to 1,3,4-oxadiazole chemistry, see: Jin et al. (2006 ▶); Bhandari et al. (2008 ▶); Krasovskii et al. (2000 ▶); Mishra et al. (1995 ▶); Suman et al. (1979 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For standard bond-length data, see: Allen et al. (1987 ▶). For the stability of the temperature controller used for the data collection, see: Cosier & Glazer (1986 ▶).

Experimental

Crystal data

C26H18N6O4S M = 510.52 Triclinic, a = 9.6132 (9) Å b = 9.8928 (10) Å c = 25.724 (2) Å α = 83.215 (2)° β = 84.102 (2)° γ = 72.564 (2)° V = 2311.8 (4) Å3 Z = 4 Mo Kα radiation μ = 0.19 mm−1 T = 100 K 0.23 × 0.19 × 0.09 mm

Data collection

Bruker SMART APEXII CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.958, T max = 0.983 9469 measured reflections 9469 independent reflections 8293 reflections with I > 2σ(I) R int = 0.000

Refinement

R[F 2 > 2σ(F 2)] = 0.056 wR(F 2) = 0.164 S = 1.20 9469 reflections 686 parameters H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.32 e Å−3 Δρmin = −0.36 e Å−3 Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: 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 ▶). Click here for additional data file. Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S1600536813005837/lh5588sup1.cif Click here for additional data file. Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536813005837/lh5588Isup2.hkl Click here for additional data file. Supplementary material file. DOI: 10.1107/S1600536813005837/lh5588Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C26H18N6O4SZ = 4
Mr = 510.52F(000) = 1056
Triclinic, P1Dx = 1.467 Mg m3
Hall symbol: -P 1Melting point: 485 K
a = 9.6132 (9) ÅMo Kα radiation, λ = 0.71073 Å
b = 9.8928 (10) ÅCell parameters from 9913 reflections
c = 25.724 (2) Åθ = 2.2–31.8°
α = 83.215 (2)°µ = 0.19 mm1
β = 84.102 (2)°T = 100 K
γ = 72.564 (2)°Block, yellow
V = 2311.8 (4) Å30.23 × 0.19 × 0.09 mm
Bruker SMART APEXII CCD area-detector diffractometer9469 independent reflections
Radiation source: fine-focus sealed tube8293 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.000
φ and ω scansθmax = 26.5°, θmin = 0.8°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −11→12
Tmin = 0.958, Tmax = 0.983k = −12→12
9469 measured reflectionsl = −8→32
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.056Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.164H atoms treated by a mixture of independent and constrained refinement
S = 1.20w = 1/[σ2(Fo2) + (0.0612P)2 + 3.203P] where P = (Fo2 + 2Fc2)/3
9469 reflections(Δ/σ)max < 0.001
686 parametersΔρmax = 0.32 e Å3
0 restraintsΔρmin = −0.36 e Å3
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 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.
xyzUiso*/Ueq
S1A0.16398 (8)0.33559 (7)0.14782 (3)0.02095 (16)
O1A0.2069 (2)0.3638 (3)0.35113 (8)0.0280 (5)
O2A0.1303 (2)0.3595 (2)0.25050 (8)0.0213 (4)
O3A0.5886 (3)0.4263 (4)0.30149 (11)0.0575 (8)
O4A0.3665 (3)0.5428 (3)0.28534 (9)0.0396 (6)
N1A−0.0325 (3)0.5693 (3)0.25986 (10)0.0277 (6)
N2A−0.0094 (3)0.5480 (3)0.20579 (10)0.0287 (6)
N3A0.0759 (3)0.6626 (3)0.03544 (9)0.0204 (5)
N4A0.2071 (3)0.8008 (3)−0.01105 (10)0.0214 (5)
N5A0.5614 (3)0.6973 (3)0.03452 (11)0.0288 (6)
N6A0.4891 (3)0.4695 (3)0.27254 (11)0.0336 (6)
C1A0.3849 (3)0.2575 (3)0.41111 (12)0.0252 (6)
H1AA0.45610.24760.38220.030*
C2A0.4263 (3)0.2099 (3)0.46061 (13)0.0259 (6)
H2AA0.52670.16510.46580.031*
C3A0.3230 (3)0.2255 (3)0.50459 (12)0.0236 (6)
C4A0.3647 (4)0.1835 (3)0.55661 (13)0.0281 (7)
H4AA0.46490.14160.56290.034*
C5A0.2605 (4)0.2033 (3)0.59803 (13)0.0316 (7)
H5AA0.28950.17720.63290.038*
C6A0.1123 (4)0.2614 (3)0.58938 (13)0.0294 (7)
H6AA0.04120.27090.61830.035*
C7A0.0686 (3)0.3049 (3)0.53921 (12)0.0253 (6)
H7AA−0.03240.34500.53380.030*
C8A0.1731 (3)0.2905 (3)0.49567 (12)0.0209 (6)
C9A0.1316 (3)0.3385 (3)0.44375 (12)0.0216 (6)
H9AA0.03160.38220.43750.026*
C10A0.2355 (3)0.3217 (3)0.40290 (12)0.0232 (6)
C11A0.0578 (3)0.4200 (3)0.34090 (12)0.0245 (6)
H11A0.01220.50590.35970.029*
H11B0.00500.34880.35310.029*
C12A0.0495 (3)0.4566 (3)0.28371 (11)0.0217 (6)
C13A0.0851 (3)0.4250 (3)0.20303 (11)0.0194 (6)
C14A0.1813 (3)0.4818 (3)0.10292 (11)0.0198 (6)
C15A0.0658 (3)0.5560 (3)0.07162 (11)0.0210 (6)
C16A0.2025 (3)0.6962 (3)0.02677 (10)0.0188 (5)
C17A0.3244 (3)0.6238 (3)0.05665 (11)0.0192 (6)
C18A0.3120 (3)0.5182 (3)0.09630 (10)0.0182 (5)
C19A0.4320 (3)0.4553 (3)0.13243 (11)0.0196 (6)
C20A0.5712 (3)0.3765 (3)0.11430 (13)0.0259 (6)
H20A0.59010.35770.07850.031*
C21A0.6824 (3)0.3254 (3)0.14864 (13)0.0290 (7)
H21A0.77640.27060.13610.035*
C22A0.6573 (3)0.3536 (3)0.20104 (14)0.0300 (7)
H22A0.73300.32010.22450.036*
C23A0.5191 (3)0.4318 (3)0.21772 (12)0.0252 (6)
C24A0.4061 (3)0.4836 (3)0.18467 (11)0.0205 (6)
H24A0.31220.53760.19760.025*
C25A−0.0770 (3)0.5216 (4)0.07700 (13)0.0288 (7)
H25A−0.14390.58700.05270.043*
H25B−0.12000.53170.11310.043*
H25C−0.06050.42350.06870.043*
C26A0.4569 (3)0.6636 (3)0.04550 (11)0.0213 (6)
S1B0.12684 (8)0.83421 (8)0.21600 (3)0.02183 (17)
O1B−0.1561 (2)1.2195 (2)0.39059 (8)0.0265 (5)
O2B−0.0028 (2)0.9464 (2)0.30307 (8)0.0208 (4)
O3B0.6655 (3)1.0426 (3)0.29656 (11)0.0454 (7)
O4B0.4448 (3)1.1689 (3)0.28241 (10)0.0377 (6)
N1B−0.0584 (3)1.1801 (3)0.28436 (10)0.0276 (6)
N2B0.0113 (3)1.1138 (3)0.23840 (10)0.0262 (6)
N3B0.0583 (2)1.0526 (3)0.07428 (9)0.0192 (5)
N4B0.1950 (3)1.1622 (3)0.01522 (10)0.0247 (5)
N5B0.5528 (3)1.0738 (3)0.05879 (10)0.0270 (6)
N6B0.5503 (3)1.0651 (3)0.27607 (10)0.0266 (6)
C1B−0.1881 (3)1.1234 (3)0.48129 (11)0.0206 (6)
H1BA−0.14401.02820.47290.025*
C2B−0.2398 (3)1.1516 (3)0.53383 (12)0.0212 (6)
C3B−0.2306 (3)1.0404 (3)0.57422 (12)0.0230 (6)
H3BA−0.18900.94470.56620.028*
C4B−0.2807 (3)1.0679 (3)0.62501 (12)0.0256 (6)
H4BA−0.27460.99160.65170.031*
C5B−0.3413 (4)1.2102 (4)0.63744 (12)0.0291 (7)
H5BA−0.37441.22950.67260.035*
C6B−0.3525 (3)1.3201 (3)0.59898 (12)0.0265 (6)
H6BA−0.39351.41520.60780.032*
C7B−0.3041 (3)1.2946 (3)0.54617 (12)0.0225 (6)
C8B−0.3159 (3)1.4046 (3)0.50515 (13)0.0262 (6)
H8BA−0.35961.50040.51290.031*
C9B−0.2666 (3)1.3773 (3)0.45474 (13)0.0253 (6)
H9BA−0.27511.45330.42780.030*
C10B−0.2024 (3)1.2343 (3)0.44277 (12)0.0223 (6)
C11B−0.1193 (3)1.0798 (3)0.37579 (11)0.0231 (6)
H11C−0.20671.04500.38060.028*
H11D−0.04391.01570.39810.028*
C12B−0.0627 (3)1.0796 (3)0.31969 (11)0.0203 (6)
C13B0.0402 (3)0.9793 (3)0.25173 (11)0.0199 (6)
C14B0.1555 (3)0.9272 (3)0.15448 (11)0.0190 (5)
C15B0.0435 (3)0.9761 (3)0.11971 (11)0.0205 (6)
C16B0.1880 (3)1.0798 (3)0.05979 (11)0.0190 (5)
C17B0.3088 (3)1.0223 (3)0.09096 (11)0.0177 (5)
C18B0.2900 (3)0.9505 (3)0.13989 (11)0.0179 (5)
C19B0.4140 (3)0.9067 (3)0.17522 (11)0.0194 (6)
C20B0.5258 (3)0.7806 (3)0.17060 (12)0.0248 (6)
H20B0.52170.71800.14590.030*
C21B0.6430 (3)0.7456 (3)0.20176 (13)0.0285 (7)
H21B0.71790.65820.19880.034*
C22B0.6517 (3)0.8372 (3)0.23727 (12)0.0255 (6)
H22B0.73200.81430.25870.031*
C23B0.5406 (3)0.9624 (3)0.24066 (11)0.0216 (6)
C24B0.4199 (3)0.9991 (3)0.21079 (11)0.0214 (6)
H24B0.34361.08500.21470.026*
C25B−0.1006 (3)0.9448 (4)0.13195 (13)0.0278 (7)
H25D−0.16020.97890.10170.042*
H25E−0.15190.99310.16260.042*
H25F−0.08360.84190.13950.042*
C26B0.4452 (3)1.0496 (3)0.07378 (11)0.0209 (6)
H2NA0.283 (4)0.831 (4)−0.0159 (13)0.020 (8)*
H1NA0.129 (4)0.852 (4)−0.0238 (14)0.026 (9)*
H2NB0.116 (4)1.215 (4)−0.0027 (16)0.036 (10)*
H1NB0.274 (5)1.183 (4)0.0053 (16)0.040 (11)*
U11U22U33U12U13U23
S1A0.0232 (4)0.0202 (3)0.0190 (3)−0.0060 (3)−0.0007 (3)−0.0009 (3)
O1A0.0226 (11)0.0401 (13)0.0190 (10)−0.0072 (9)−0.0023 (8)0.0022 (9)
O2A0.0244 (10)0.0202 (10)0.0169 (10)−0.0032 (8)−0.0009 (8)−0.0007 (8)
O3A0.0607 (19)0.080 (2)0.0346 (15)−0.0171 (16)−0.0291 (14)−0.0020 (14)
O4A0.0553 (17)0.0385 (14)0.0248 (12)−0.0119 (12)−0.0011 (11)−0.0082 (10)
N1A0.0297 (14)0.0243 (13)0.0229 (13)0.0009 (11)−0.0020 (11)−0.0003 (10)
N2A0.0278 (14)0.0284 (14)0.0227 (13)0.0029 (11)−0.0025 (11)−0.0019 (11)
N3A0.0177 (11)0.0284 (13)0.0156 (11)−0.0074 (10)−0.0018 (9)−0.0018 (10)
N4A0.0155 (12)0.0284 (13)0.0199 (12)−0.0068 (11)−0.0027 (10)0.0016 (10)
N5A0.0200 (13)0.0388 (15)0.0268 (14)−0.0109 (11)−0.0056 (10)0.0103 (11)
N6A0.0445 (17)0.0364 (16)0.0245 (14)−0.0167 (14)−0.0128 (13)0.0004 (12)
C1A0.0199 (14)0.0292 (16)0.0268 (15)−0.0081 (12)0.0018 (12)−0.0045 (12)
C2A0.0186 (14)0.0261 (15)0.0338 (17)−0.0069 (12)−0.0062 (12)−0.0014 (13)
C3A0.0269 (15)0.0174 (13)0.0283 (16)−0.0085 (12)−0.0057 (12)−0.0007 (11)
C4A0.0319 (16)0.0250 (15)0.0303 (17)−0.0124 (13)−0.0112 (13)0.0050 (12)
C5A0.048 (2)0.0266 (16)0.0243 (16)−0.0156 (15)−0.0109 (14)0.0040 (13)
C6A0.0421 (19)0.0228 (15)0.0234 (15)−0.0116 (14)0.0031 (13)−0.0011 (12)
C7A0.0294 (16)0.0194 (14)0.0269 (16)−0.0070 (12)−0.0010 (12)−0.0021 (12)
C8A0.0260 (15)0.0142 (13)0.0239 (14)−0.0078 (11)−0.0027 (12)−0.0013 (11)
C9A0.0213 (14)0.0180 (13)0.0248 (15)−0.0045 (11)−0.0037 (11)−0.0006 (11)
C10A0.0260 (15)0.0244 (14)0.0207 (14)−0.0088 (12)−0.0034 (12)−0.0020 (11)
C11A0.0233 (15)0.0260 (15)0.0213 (15)−0.0039 (12)−0.0009 (11)−0.0004 (12)
C12A0.0185 (14)0.0236 (14)0.0211 (14)−0.0035 (11)0.0010 (11)−0.0028 (11)
C13A0.0175 (13)0.0229 (14)0.0165 (13)−0.0049 (11)−0.0027 (10)0.0024 (11)
C14A0.0181 (13)0.0233 (14)0.0182 (13)−0.0063 (11)0.0007 (11)−0.0032 (11)
C15A0.0183 (13)0.0281 (15)0.0158 (13)−0.0064 (11)−0.0006 (11)−0.0009 (11)
C16A0.0180 (13)0.0254 (14)0.0130 (12)−0.0056 (11)−0.0019 (10)−0.0025 (11)
C17A0.0153 (13)0.0271 (15)0.0151 (13)−0.0054 (11)−0.0018 (10)−0.0033 (11)
C18A0.0176 (13)0.0210 (13)0.0147 (13)−0.0028 (11)−0.0001 (10)−0.0051 (10)
C19A0.0182 (13)0.0212 (14)0.0202 (14)−0.0069 (11)−0.0023 (11)−0.0009 (11)
C20A0.0233 (15)0.0243 (15)0.0272 (16)−0.0036 (12)0.0009 (12)−0.0021 (12)
C21A0.0183 (14)0.0247 (15)0.0390 (18)−0.0007 (12)−0.0009 (13)0.0015 (13)
C22A0.0235 (15)0.0277 (16)0.0376 (18)−0.0058 (13)−0.0127 (13)0.0064 (13)
C23A0.0317 (16)0.0261 (15)0.0206 (14)−0.0120 (13)−0.0065 (12)0.0008 (12)
C24A0.0205 (14)0.0206 (14)0.0208 (14)−0.0070 (11)−0.0019 (11)−0.0009 (11)
C25A0.0219 (15)0.0364 (18)0.0287 (16)−0.0115 (13)−0.0066 (12)0.0064 (13)
C26A0.0206 (14)0.0263 (15)0.0147 (13)−0.0039 (12)−0.0049 (11)0.0025 (11)
S1B0.0244 (4)0.0207 (3)0.0181 (3)−0.0055 (3)0.0014 (3)0.0021 (3)
O1B0.0316 (12)0.0241 (11)0.0218 (11)−0.0076 (9)0.0063 (9)−0.0027 (8)
O2B0.0193 (10)0.0233 (10)0.0165 (10)−0.0022 (8)−0.0020 (8)0.0013 (8)
O3B0.0428 (15)0.0419 (15)0.0556 (17)−0.0091 (12)−0.0321 (13)−0.0043 (13)
O4B0.0333 (13)0.0393 (14)0.0402 (14)−0.0031 (11)−0.0077 (11)−0.0170 (11)
N1B0.0301 (14)0.0273 (14)0.0220 (13)−0.0054 (11)0.0050 (11)−0.0027 (10)
N2B0.0308 (14)0.0245 (13)0.0201 (13)−0.0062 (11)0.0053 (10)−0.0003 (10)
N3B0.0139 (11)0.0262 (12)0.0172 (11)−0.0054 (9)−0.0023 (9)−0.0011 (9)
N4B0.0155 (12)0.0376 (15)0.0205 (13)−0.0103 (11)−0.0027 (10)0.0072 (11)
N5B0.0196 (13)0.0344 (15)0.0262 (14)−0.0087 (11)−0.0045 (10)0.0051 (11)
N6B0.0297 (14)0.0279 (14)0.0242 (13)−0.0101 (11)−0.0101 (11)0.0018 (11)
C1B0.0180 (13)0.0185 (13)0.0245 (15)−0.0046 (11)0.0003 (11)−0.0027 (11)
C2B0.0177 (13)0.0220 (14)0.0264 (15)−0.0077 (11)−0.0012 (11)−0.0071 (12)
C3B0.0231 (14)0.0227 (14)0.0234 (15)−0.0058 (12)−0.0017 (12)−0.0050 (12)
C4B0.0273 (15)0.0292 (16)0.0221 (15)−0.0112 (13)−0.0034 (12)−0.0005 (12)
C5B0.0313 (17)0.0372 (18)0.0213 (15)−0.0121 (14)0.0022 (12)−0.0097 (13)
C6B0.0275 (15)0.0256 (15)0.0289 (16)−0.0095 (12)0.0036 (12)−0.0127 (13)
C7B0.0173 (13)0.0221 (14)0.0288 (15)−0.0061 (11)0.0019 (11)−0.0075 (12)
C8B0.0234 (15)0.0197 (14)0.0354 (17)−0.0063 (12)0.0015 (13)−0.0059 (12)
C9B0.0232 (15)0.0204 (14)0.0311 (16)−0.0069 (12)0.0016 (12)0.0016 (12)
C10B0.0199 (14)0.0253 (15)0.0212 (14)−0.0074 (11)0.0043 (11)−0.0027 (11)
C11B0.0239 (14)0.0249 (15)0.0202 (14)−0.0077 (12)0.0000 (11)−0.0004 (11)
C12B0.0169 (13)0.0254 (14)0.0185 (14)−0.0064 (11)−0.0008 (10)−0.0012 (11)
C13B0.0188 (13)0.0257 (14)0.0150 (13)−0.0086 (11)0.0003 (10)0.0029 (11)
C14B0.0193 (13)0.0188 (13)0.0170 (13)−0.0032 (11)−0.0003 (11)−0.0010 (10)
C15B0.0201 (14)0.0216 (14)0.0201 (14)−0.0070 (11)0.0003 (11)−0.0022 (11)
C16B0.0162 (13)0.0237 (14)0.0179 (13)−0.0065 (11)−0.0015 (10)−0.0029 (11)
C17B0.0132 (12)0.0199 (13)0.0188 (13)−0.0033 (10)−0.0008 (10)−0.0016 (10)
C18B0.0191 (13)0.0155 (12)0.0177 (13)−0.0026 (10)−0.0024 (10)−0.0019 (10)
C19B0.0175 (13)0.0220 (14)0.0191 (13)−0.0084 (11)−0.0005 (11)0.0028 (11)
C20B0.0231 (15)0.0236 (15)0.0262 (15)−0.0051 (12)−0.0033 (12)0.0000 (12)
C21B0.0208 (15)0.0264 (16)0.0339 (17)−0.0004 (12)−0.0049 (13)0.0000 (13)
C22B0.0181 (14)0.0305 (16)0.0250 (15)−0.0050 (12)−0.0065 (11)0.0077 (12)
C23B0.0235 (14)0.0252 (14)0.0164 (13)−0.0077 (12)−0.0044 (11)0.0008 (11)
C24B0.0193 (14)0.0215 (14)0.0204 (14)−0.0021 (11)−0.0045 (11)0.0024 (11)
C25B0.0237 (15)0.0347 (17)0.0258 (16)−0.0122 (13)−0.0032 (12)0.0052 (13)
C26B0.0191 (14)0.0230 (14)0.0186 (14)−0.0036 (11)−0.0053 (11)0.0030 (11)
S1A—C13A1.746 (3)S1B—C13B1.742 (3)
S1A—C14A1.779 (3)S1B—C14B1.773 (3)
O1A—C10A1.378 (4)O1B—C10B1.381 (4)
O1A—C11A1.414 (4)O1B—C11B1.409 (4)
O2A—C13A1.361 (3)O2B—C12B1.370 (4)
O2A—C12A1.366 (3)O2B—C13B1.374 (3)
O3A—N6A1.216 (4)O3B—N6B1.224 (3)
O4A—N6A1.219 (4)O4B—N6B1.221 (4)
N1A—C12A1.285 (4)N1B—C12B1.273 (4)
N1A—N2A1.416 (4)N1B—N2B1.426 (4)
N2A—C13A1.287 (4)N2B—C13B1.287 (4)
N3A—C15A1.341 (4)N3B—C15B1.334 (4)
N3A—C16A1.346 (4)N3B—C16B1.359 (3)
N4A—C16A1.342 (4)N4B—C16B1.334 (4)
N4A—H2NA0.86 (4)N4B—H2NB0.92 (4)
N4A—H1NA0.84 (4)N4B—H1NB0.85 (4)
N5A—C26A1.149 (4)N5B—C26B1.149 (4)
N6A—C23A1.479 (4)N6B—C23B1.471 (4)
C1A—C2A1.361 (4)C1B—C10B1.374 (4)
C1A—C10A1.413 (4)C1B—C2B1.421 (4)
C1A—H1AA0.9500C1B—H1BA0.9500
C2A—C3A1.417 (4)C2B—C3B1.410 (4)
C2A—H2AA0.9500C2B—C7B1.424 (4)
C3A—C4A1.415 (4)C3B—C4B1.374 (4)
C3A—C8A1.422 (4)C3B—H3BA0.9500
C4A—C5A1.375 (5)C4B—C5B1.414 (5)
C4A—H4AA0.9500C4B—H4BA0.9500
C5A—C6A1.398 (5)C5B—C6B1.368 (5)
C5A—H5AA0.9500C5B—H5BA0.9500
C6A—C7A1.378 (4)C6B—C7B1.416 (4)
C6A—H6AA0.9500C6B—H6BA0.9500
C7A—C8A1.416 (4)C7B—C8B1.410 (4)
C7A—H7AA0.9500C8B—C9B1.363 (5)
C8A—C9A1.419 (4)C8B—H8BA0.9500
C9A—C10A1.362 (4)C9B—C10B1.420 (4)
C9A—H9AA0.9500C9B—H9BA0.9500
C11A—C12A1.477 (4)C11B—C12B1.489 (4)
C11A—H11A0.9900C11B—H11C0.9900
C11A—H11B0.9900C11B—H11D0.9900
C14A—C18A1.397 (4)C14B—C18B1.388 (4)
C14A—C15A1.405 (4)C14B—C15B1.405 (4)
C15A—C25A1.499 (4)C15B—C25B1.503 (4)
C16A—C17A1.425 (4)C16B—C17B1.415 (4)
C17A—C18A1.395 (4)C17B—C18B1.393 (4)
C17A—C26A1.434 (4)C17B—C26B1.432 (4)
C18A—C19A1.495 (4)C18B—C19B1.501 (4)
C19A—C24A1.387 (4)C19B—C24B1.383 (4)
C19A—C20A1.395 (4)C19B—C20B1.389 (4)
C20A—C21A1.394 (4)C20B—C21B1.385 (4)
C20A—H20A0.9500C20B—H20B0.9500
C21A—C22A1.391 (5)C21B—C22B1.386 (5)
C21A—H21A0.9500C21B—H21B0.9500
C22A—C23A1.376 (5)C22B—C23B1.377 (4)
C22A—H22A0.9500C22B—H22B0.9500
C23A—C24A1.385 (4)C23B—C24B1.391 (4)
C24A—H24A0.9500C24B—H24B0.9500
C25A—H25A0.9800C25B—H25D0.9800
C25A—H25B0.9800C25B—H25E0.9800
C25A—H25C0.9800C25B—H25F0.9800
C13A—S1A—C14A99.92 (13)C13B—S1B—C14B98.96 (13)
C10A—O1A—C11A116.0 (2)C10B—O1B—C11B115.3 (2)
C13A—O2A—C12A101.6 (2)C12B—O2B—C13B101.0 (2)
C12A—N1A—N2A105.9 (2)C12B—N1B—N2B106.1 (2)
C13A—N2A—N1A105.5 (2)C13B—N2B—N1B105.2 (2)
C15A—N3A—C16A119.5 (2)C15B—N3B—C16B119.2 (2)
C16A—N4A—H2NA119 (2)C16B—N4B—H2NB125 (2)
C16A—N4A—H1NA119 (2)C16B—N4B—H1NB119 (3)
H2NA—N4A—H1NA119 (3)H2NB—N4B—H1NB115 (4)
O3A—N6A—O4A124.7 (3)O4B—N6B—O3B124.0 (3)
O3A—N6A—C23A117.7 (3)O4B—N6B—C23B118.3 (2)
O4A—N6A—C23A117.6 (3)O3B—N6B—C23B117.7 (3)
C2A—C1A—C10A119.6 (3)C10B—C1B—C2B119.6 (3)
C2A—C1A—H1AA120.2C10B—C1B—H1BA120.2
C10A—C1A—H1AA120.2C2B—C1B—H1BA120.2
C1A—C2A—C3A121.5 (3)C3B—C2B—C1B121.4 (3)
C1A—C2A—H2AA119.2C3B—C2B—C7B118.9 (3)
C3A—C2A—H2AA119.2C1B—C2B—C7B119.7 (3)
C4A—C3A—C2A122.3 (3)C4B—C3B—C2B121.3 (3)
C4A—C3A—C8A119.5 (3)C4B—C3B—H3BA119.4
C2A—C3A—C8A118.2 (3)C2B—C3B—H3BA119.4
C5A—C4A—C3A120.1 (3)C3B—C4B—C5B119.7 (3)
C5A—C4A—H4AA120.0C3B—C4B—H4BA120.1
C3A—C4A—H4AA120.0C5B—C4B—H4BA120.1
C4A—C5A—C6A120.7 (3)C6B—C5B—C4B120.2 (3)
C4A—C5A—H5AA119.7C6B—C5B—H5BA119.9
C6A—C5A—H5AA119.7C4B—C5B—H5BA119.9
C7A—C6A—C5A120.5 (3)C5B—C6B—C7B121.2 (3)
C7A—C6A—H6AA119.8C5B—C6B—H6BA119.4
C5A—C6A—H6AA119.8C7B—C6B—H6BA119.4
C6A—C7A—C8A120.5 (3)C8B—C7B—C6B123.1 (3)
C6A—C7A—H7AA119.8C8B—C7B—C2B118.3 (3)
C8A—C7A—H7AA119.8C6B—C7B—C2B118.6 (3)
C7A—C8A—C9A121.7 (3)C9B—C8B—C7B121.9 (3)
C7A—C8A—C3A118.7 (3)C9B—C8B—H8BA119.1
C9A—C8A—C3A119.6 (3)C7B—C8B—H8BA119.1
C10A—C9A—C8A119.8 (3)C8B—C9B—C10B119.5 (3)
C10A—C9A—H9AA120.1C8B—C9B—H9BA120.3
C8A—C9A—H9AA120.1C10B—C9B—H9BA120.3
C9A—C10A—O1A124.5 (3)C1B—C10B—O1B124.6 (3)
C9A—C10A—C1A121.2 (3)C1B—C10B—C9B121.0 (3)
O1A—C10A—C1A114.3 (3)O1B—C10B—C9B114.4 (3)
O1A—C11A—C12A108.0 (2)O1B—C11B—C12B108.9 (2)
O1A—C11A—H11A110.1O1B—C11B—H11C109.9
C12A—C11A—H11A110.1C12B—C11B—H11C109.9
O1A—C11A—H11B110.1O1B—C11B—H11D109.9
C12A—C11A—H11B110.1C12B—C11B—H11D109.9
H11A—C11A—H11B108.4H11C—C11B—H11D108.3
N1A—C12A—O2A113.3 (3)N1B—C12B—O2B113.9 (2)
N1A—C12A—C11A127.7 (3)N1B—C12B—C11B132.0 (3)
O2A—C12A—C11A118.9 (2)O2B—C12B—C11B114.1 (2)
N2A—C13A—O2A113.7 (3)N2B—C13B—O2B113.7 (3)
N2A—C13A—S1A129.3 (2)N2B—C13B—S1B130.8 (2)
O2A—C13A—S1A117.1 (2)O2B—C13B—S1B115.5 (2)
C18A—C14A—C15A119.7 (3)C18B—C14B—C15B119.3 (3)
C18A—C14A—S1A120.4 (2)C18B—C14B—S1B120.1 (2)
C15A—C14A—S1A119.8 (2)C15B—C14B—S1B120.6 (2)
N3A—C15A—C14A122.1 (3)N3B—C15B—C14B122.4 (3)
N3A—C15A—C25A115.9 (2)N3B—C15B—C25B116.2 (2)
C14A—C15A—C25A122.0 (3)C14B—C15B—C25B121.4 (3)
N4A—C16A—N3A116.6 (2)N4B—C16B—N3B116.8 (2)
N4A—C16A—C17A122.3 (3)N4B—C16B—C17B122.3 (3)
N3A—C16A—C17A121.1 (3)N3B—C16B—C17B120.8 (3)
C18A—C17A—C16A119.6 (3)C18B—C17B—C16B119.5 (2)
C18A—C17A—C26A121.6 (2)C18B—C17B—C26B120.8 (2)
C16A—C17A—C26A118.7 (3)C16B—C17B—C26B119.4 (2)
C17A—C18A—C14A117.8 (3)C14B—C18B—C17B118.3 (2)
C17A—C18A—C19A119.9 (2)C14B—C18B—C19B123.0 (2)
C14A—C18A—C19A122.1 (3)C17B—C18B—C19B118.7 (2)
C24A—C19A—C20A119.4 (3)C24B—C19B—C20B120.0 (3)
C24A—C19A—C18A118.8 (2)C24B—C19B—C18B118.5 (2)
C20A—C19A—C18A121.7 (3)C20B—C19B—C18B121.4 (3)
C19A—C20A—C21A120.1 (3)C21B—C20B—C19B120.5 (3)
C19A—C20A—H20A119.9C21B—C20B—H20B119.7
C21A—C20A—H20A119.9C19B—C20B—H20B119.7
C22A—C21A—C20A120.8 (3)C22B—C21B—C20B120.4 (3)
C22A—C21A—H21A119.6C22B—C21B—H21B119.8
C20A—C21A—H21A119.6C20B—C21B—H21B119.8
C23A—C22A—C21A117.7 (3)C23B—C22B—C21B118.1 (3)
C23A—C22A—H22A121.1C23B—C22B—H22B121.0
C21A—C22A—H22A121.1C21B—C22B—H22B121.0
C22A—C23A—C24A122.9 (3)C22B—C23B—C24B122.9 (3)
C22A—C23A—N6A119.6 (3)C22B—C23B—N6B119.3 (3)
C24A—C23A—N6A117.4 (3)C24B—C23B—N6B117.8 (3)
C23A—C24A—C19A119.1 (3)C19B—C24B—C23B118.1 (3)
C23A—C24A—H24A120.5C19B—C24B—H24B120.9
C19A—C24A—H24A120.5C23B—C24B—H24B120.9
C15A—C25A—H25A109.5C15B—C25B—H25D109.5
C15A—C25A—H25B109.5C15B—C25B—H25E109.5
H25A—C25A—H25B109.5H25D—C25B—H25E109.5
C15A—C25A—H25C109.5C15B—C25B—H25F109.5
H25A—C25A—H25C109.5H25D—C25B—H25F109.5
H25B—C25A—H25C109.5H25E—C25B—H25F109.5
N5A—C26A—C17A177.2 (3)N5B—C26B—C17B178.0 (3)
C12A—N1A—N2A—C13A−0.5 (3)C12B—N1B—N2B—C13B0.4 (3)
C10A—C1A—C2A—C3A−1.2 (5)C10B—C1B—C2B—C3B178.3 (3)
C1A—C2A—C3A—C4A−176.6 (3)C10B—C1B—C2B—C7B−0.8 (4)
C1A—C2A—C3A—C8A1.1 (4)C1B—C2B—C3B—C4B−179.9 (3)
C2A—C3A—C4A—C5A178.8 (3)C7B—C2B—C3B—C4B−0.8 (4)
C8A—C3A—C4A—C5A1.1 (4)C2B—C3B—C4B—C5B−0.7 (5)
C3A—C4A—C5A—C6A1.7 (5)C3B—C4B—C5B—C6B1.1 (5)
C4A—C5A—C6A—C7A−2.5 (5)C4B—C5B—C6B—C7B−0.1 (5)
C5A—C6A—C7A—C8A0.5 (5)C5B—C6B—C7B—C8B178.8 (3)
C6A—C7A—C8A—C9A−178.0 (3)C5B—C6B—C7B—C2B−1.4 (4)
C6A—C7A—C8A—C3A2.3 (4)C3B—C2B—C7B—C8B−178.4 (3)
C4A—C3A—C8A—C7A−3.1 (4)C1B—C2B—C7B—C8B0.7 (4)
C2A—C3A—C8A—C7A179.1 (3)C3B—C2B—C7B—C6B1.9 (4)
C4A—C3A—C8A—C9A177.2 (3)C1B—C2B—C7B—C6B−179.0 (3)
C2A—C3A—C8A—C9A−0.6 (4)C6B—C7B—C8B—C9B179.1 (3)
C7A—C8A—C9A—C10A−179.5 (3)C2B—C7B—C8B—C9B−0.6 (4)
C3A—C8A—C9A—C10A0.1 (4)C7B—C8B—C9B—C10B0.5 (5)
C8A—C9A—C10A—O1A179.7 (3)C2B—C1B—C10B—O1B179.9 (3)
C8A—C9A—C10A—C1A−0.2 (4)C2B—C1B—C10B—C9B0.7 (4)
C11A—O1A—C10A—C9A−3.9 (4)C11B—O1B—C10B—C1B12.9 (4)
C11A—O1A—C10A—C1A176.0 (3)C11B—O1B—C10B—C9B−167.9 (3)
C2A—C1A—C10A—C9A0.8 (5)C8B—C9B—C10B—C1B−0.6 (4)
C2A—C1A—C10A—O1A−179.2 (3)C8B—C9B—C10B—O1B−179.8 (3)
C10A—O1A—C11A—C12A−179.1 (2)C10B—O1B—C11B—C12B−176.4 (2)
N2A—N1A—C12A—O2A1.3 (3)N2B—N1B—C12B—O2B−0.3 (3)
N2A—N1A—C12A—C11A−174.9 (3)N2B—N1B—C12B—C11B179.0 (3)
C13A—O2A—C12A—N1A−1.5 (3)C13B—O2B—C12B—N1B0.2 (3)
C13A—O2A—C12A—C11A175.1 (3)C13B—O2B—C12B—C11B−179.3 (2)
O1A—C11A—C12A—N1A−136.7 (3)O1B—C11B—C12B—N1B−8.7 (4)
O1A—C11A—C12A—O2A47.3 (4)O1B—C11B—C12B—O2B170.6 (2)
N1A—N2A—C13A—O2A−0.4 (3)N1B—N2B—C13B—O2B−0.3 (3)
N1A—N2A—C13A—S1A−178.7 (2)N1B—N2B—C13B—S1B−179.0 (2)
C12A—O2A—C13A—N2A1.1 (3)C12B—O2B—C13B—N2B0.1 (3)
C12A—O2A—C13A—S1A179.6 (2)C12B—O2B—C13B—S1B179.02 (19)
C14A—S1A—C13A—N2A36.7 (3)C14B—S1B—C13B—N2B−2.7 (3)
C14A—S1A—C13A—O2A−141.5 (2)C14B—S1B—C13B—O2B178.5 (2)
C13A—S1A—C14A—C18A94.8 (2)C13B—S1B—C14B—C18B98.0 (2)
C13A—S1A—C14A—C15A−89.0 (2)C13B—S1B—C14B—C15B−83.0 (2)
C16A—N3A—C15A—C14A3.2 (4)C16B—N3B—C15B—C14B2.7 (4)
C16A—N3A—C15A—C25A−177.4 (3)C16B—N3B—C15B—C25B−177.3 (3)
C18A—C14A—C15A—N3A−0.6 (4)C18B—C14B—C15B—N3B−4.4 (4)
S1A—C14A—C15A—N3A−176.8 (2)S1B—C14B—C15B—N3B176.5 (2)
C18A—C14A—C15A—C25A180.0 (3)C18B—C14B—C15B—C25B175.7 (3)
S1A—C14A—C15A—C25A3.8 (4)S1B—C14B—C15B—C25B−3.4 (4)
C15A—N3A—C16A—N4A178.0 (3)C15B—N3B—C16B—N4B−177.0 (3)
C15A—N3A—C16A—C17A−2.3 (4)C15B—N3B—C16B—C17B3.1 (4)
N4A—C16A—C17A—C18A178.5 (3)N4B—C16B—C17B—C18B172.8 (3)
N3A—C16A—C17A—C18A−1.2 (4)N3B—C16B—C17B—C18B−7.3 (4)
N4A—C16A—C17A—C26A−0.6 (4)N4B—C16B—C17B—C26B−1.8 (4)
N3A—C16A—C17A—C26A179.7 (3)N3B—C16B—C17B—C26B178.2 (3)
C16A—C17A—C18A—C14A3.7 (4)C15B—C14B—C18B—C17B0.1 (4)
C26A—C17A—C18A—C14A−177.2 (3)S1B—C14B—C18B—C17B179.2 (2)
C16A—C17A—C18A—C19A−171.9 (2)C15B—C14B—C18B—C19B177.7 (3)
C26A—C17A—C18A—C19A7.2 (4)S1B—C14B—C18B—C19B−3.2 (4)
C15A—C14A—C18A—C17A−2.9 (4)C16B—C17B—C18B—C14B5.5 (4)
S1A—C14A—C18A—C17A173.3 (2)C26B—C17B—C18B—C14B180.0 (3)
C15A—C14A—C18A—C19A172.7 (3)C16B—C17B—C18B—C19B−172.3 (3)
S1A—C14A—C18A—C19A−11.2 (4)C26B—C17B—C18B—C19B2.2 (4)
C17A—C18A—C19A—C24A111.4 (3)C14B—C18B—C19B—C24B−86.1 (3)
C14A—C18A—C19A—C24A−64.0 (4)C17B—C18B—C19B—C24B91.5 (3)
C17A—C18A—C19A—C20A−64.7 (4)C14B—C18B—C19B—C20B97.7 (3)
C14A—C18A—C19A—C20A119.8 (3)C17B—C18B—C19B—C20B−84.6 (3)
C24A—C19A—C20A—C21A0.8 (4)C24B—C19B—C20B—C21B0.6 (4)
C18A—C19A—C20A—C21A176.9 (3)C18B—C19B—C20B—C21B176.7 (3)
C19A—C20A—C21A—C22A−0.9 (5)C19B—C20B—C21B—C22B−1.2 (5)
C20A—C21A—C22A—C23A0.8 (5)C20B—C21B—C22B—C23B0.4 (5)
C21A—C22A—C23A—C24A−0.5 (5)C21B—C22B—C23B—C24B1.2 (5)
C21A—C22A—C23A—N6A−177.4 (3)C21B—C22B—C23B—N6B−177.0 (3)
O3A—N6A—C23A—C22A−1.7 (5)O4B—N6B—C23B—C22B−173.0 (3)
O4A—N6A—C23A—C22A177.7 (3)O3B—N6B—C23B—C22B8.5 (4)
O3A—N6A—C23A—C24A−178.8 (3)O4B—N6B—C23B—C24B8.7 (4)
O4A—N6A—C23A—C24A0.6 (4)O3B—N6B—C23B—C24B−169.7 (3)
C22A—C23A—C24A—C19A0.4 (5)C20B—C19B—C24B—C23B0.8 (4)
N6A—C23A—C24A—C19A177.3 (3)C18B—C19B—C24B—C23B−175.3 (3)
C20A—C19A—C24A—C23A−0.5 (4)C22B—C23B—C24B—C19B−1.8 (4)
C18A—C19A—C24A—C23A−176.7 (3)N6B—C23B—C24B—C19B176.4 (3)
D—H···AD—HH···AD···AD—H···A
N4A—H2NA···N5Bi0.86 (4)2.21 (4)3.025 (4)158 (3)
N4A—H1NA···N3Bii0.84 (4)2.23 (4)3.056 (4)165 (4)
N4B—H2NB···N3Aii0.92 (4)2.08 (4)2.991 (4)174 (4)
N4B—H1NB···N5Ai0.85 (5)2.34 (5)3.157 (4)162 (4)
C11A—H11B···O1Biii0.992.363.332 (4)168
C11B—H11C···O3Biv0.992.603.173 (4)117
C21B—H21B···N2Av0.952.543.333 (4)142
C22A—H22A···N1Bvi0.952.603.540 (4)169
C2A—H2AA···Cg1vi0.952.783.492 (3)133
C4A—H4AA···Cg2vi0.952.623.457 (4)147
C7A—H7AA···Cg1iii0.952.803.557 (3)138
C3B—H3BA···Cg3vii0.952.673.440 (3)138
C8B—H8BA···Cg3viii0.952.833.599 (3)139
C24A—H24A···Cg40.952.923.652 (3)135
Table 1

Hydrogen-bond geometry (Å, °)

Cg1, Cg2, Cg3 and Cg4 are the centroids of the C1B/C2B/C7B–C10B, C2B–C7B, C1A/C2A/C3A/C8A–C10A and O2A/C12A/N1A/N2A/C13A rings, respecively.

D—H⋯A D—HH⋯A DA D—H⋯A
N4A—H2NA⋯N5B i 0.86 (4)2.21 (4)3.025 (4)158 (3)
N4A—H1NA⋯N3B ii 0.84 (4)2.23 (4)3.056 (4)165 (4)
N4B—H2NB⋯N3A ii 0.92 (4)2.08 (4)2.991 (4)174 (4)
N4B—H1NB⋯N5A i 0.85 (5)2.34 (5)3.157 (4)162 (4)
C11A—H11B⋯O1B iii 0.992.363.332 (4)168
C11B—H11C⋯O3B iv 0.992.603.173 (4)117
C21B—H21B⋯N2A v 0.952.543.333 (4)142
C22A—H22A⋯N1B vi 0.952.603.540 (4)169
C2A—H2AACg1vi 0.952.783.492 (3)133
C4A—H4AACg2vi 0.952.623.457 (4)147
C7A—H7AACg1iii 0.952.803.557 (3)138
C3B—H3BACg3vii 0.952.673.440 (3)138
C8B—H8BACg3viii 0.952.833.599 (3)139
C24A—H24ACg40.952.923.652 (3)135

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) ; (viii) .

  8 in total

1.  Synthesis, structure, and bioactivity of N'-substituted benzylidene-3,4,5-trimethoxybenzohydrazide and 3-acetyl-2-substituted phenyl-5-(3,4,5-trimethoxyphenyl)-2,3-dihydro-1,3,4-oxadiazole derivatives.

Authors:  Linhong Jin; Jiang Chen; Baoan Song; Zhuo Chen; Song Yang; Qianzhu Li; Deyu Hu; Ruiqing Xu
Journal:  Bioorg Med Chem Lett       Date:  2006-07-28       Impact factor: 2.823

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  Purinoceptors on blood platelets: further pharmacological and clinical evidence to suggest the presence of two ADP receptors.

Authors:  C Gachet; M Cattaneo; P Ohlmann; B Hechler; A Lecchi; J Chevalier; D Cassel; P M Mannucci; J P Cazenave
Journal:  Br J Haematol       Date:  1995-10       Impact factor: 6.998

4.  Antitumor and antimicrobial activities of Fe(II)/Fe(III) complexes derived from some heterocyclic compounds.

Authors:  L Mishra; M K Said; H Itokawa; K Takeya
Journal:  Bioorg Med Chem       Date:  1995-09       Impact factor: 3.641

5.  Clopidogrel is more effective than aspirin as adjuvant treatment to prevent reocclusion after thrombolysis.

Authors:  S K Yao; J C Ober; J J Ferguson; J P Maffrand; H V Anderson; L M Buja; J T Willerson
Journal:  Am J Physiol       Date:  1994-08

6.  Design, synthesis and evaluation of antiinflammatory, analgesic and ulcerogenicity studies of novel S-substituted phenacyl-1,3,4-oxadiazole-2-thiol and Schiff bases of diclofenac acid as nonulcerogenic derivatives.

Authors:  Shashikant V Bhandari; Kailash G Bothara; Mayuresh K Raut; Ajit A Patil; Aniket P Sarkate; Vinod J Mokale
Journal:  Bioorg Med Chem       Date:  2007-11-19       Impact factor: 3.641

7.  Inhibitory effect of clopidogrel, vapiprost and argatroban on the middle cerebral artery thrombosis in the rat.

Authors:  K Umemura; H Kawai; H Ishihara; M Nakashima
Journal:  Jpn J Pharmacol       Date:  1995-03

8.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
  8 in total

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