Literature DB >> 21754212

rac-(3S,4S)-3-Hy-droxy-4-phenyl-1-[(S)-(3-phenyl-4,5-dihydro-1,2-oxazol-5-yl)meth-yl]-4,5-dihydro-1H-1,5-benzo-diazepin-2(3H)-one.

Mohamed Rida, El Mokhtar Essassi, Stéphane Massip, Saïd Lazar, Hafid Zouihri.   

Abstract

In the title compound, C(25)H(23)N(3)O(3), the seven-membered diazepine ring adopts a boat conformation with the hydroxy-substituted C atom at the prow and fused-ring C atoms at the stern. The crystal packing features C-H⋯O, C-H⋯π and N-H ⋯π inter-actions.

Entities:  

Year:  2011        PMID: 21754212      PMCID: PMC3100042          DOI: 10.1107/S1600536811010129

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


Related literature

For the preparation and biological activity of benzodiazepines, see: Ahabchane et al. (1999 ▶), Grunewald et al. (1996 ▶); Ding et al., (1999 ▶). For related structures, see: Saber et al. (2010a ▶,b ▶); Ballo et al. (2010 ▶). For puckering parameters, see: Cremer & Pople (1975 ▶).

Experimental

Crystal data

C25H23N3O3 M = 413.46 Triclinic, a = 8.981 (2) Å b = 9.044 (2) Å c = 13.685 (1) Å α = 95.373 (10)° β = 102.433 (10)° γ = 100.03 (2)° V = 1058.9 (3) Å3 Z = 2 Cu Kα radiation μ = 0.70 mm−1 T = 293 K 0.15 × 0.10 × 0.08 mm

Data collection

Enraf–Nonius CAD-4 diffractometer Absorption correction: ψ scan (North et al., 1968 ▶) T min = 0.903, T max = 0.946 3584 measured reflections 3584 independent reflections 3232 reflections with I > 2σ(I) R int = 0.000 2 standard reflections every 90 min intensity decay: none

Refinement

R[F 2 > 2σ(F 2)] = 0.050 wR(F 2) = 0.157 S = 1.05 3584 reflections 286 parameters 1 restraint H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.20 e Å−3 Δρmin = −0.17 e Å−3 Data collection: CAD-4 Software (Enraf–Nonius, 1989 ▶); cell refinement: CAD-4 Software; data reduction: CAD-4 Software; 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: publCIF (Westrip, 2010 ▶). Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536811010129/ld2003sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536811010129/ld2003Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C25H23N3O3Z = 2
Mr = 413.46F(000) = 436
Triclinic, P1Dx = 1.297 Mg m3
Hall symbol: -P 1Cu Kα radiation, λ = 1.54180 Å
a = 8.981 (2) ÅCell parameters from 25 reflections
b = 9.044 (2) Åθ = 25–35°
c = 13.685 (1) ŵ = 0.70 mm1
α = 95.373 (10)°T = 293 K
β = 102.433 (10)°Prism, colourless
γ = 100.03 (2)°0.15 × 0.10 × 0.08 mm
V = 1058.9 (3) Å3
Enraf–Nonius CAD-4 diffractometer3232 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.0000
graphiteθmax = 64.9°, θmin = 5.0°
ω–2θ scansh = −10→10
Absorption correction: ψ scan (North et al., 1968)k = −10→10
Tmin = 0.903, Tmax = 0.946l = 0→16
3584 measured reflections2 standard reflections every 90 min
3584 independent reflections intensity decay: none
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.050H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.157w = 1/[σ2(Fo2) + (0.0902P)2 + 0.363P] where P = (Fo2 + 2Fc2)/3
S = 1.05(Δ/σ)max = 0.005
3584 reflectionsΔρmax = 0.20 e Å3
286 parametersΔρmin = −0.17 e Å3
1 restraintExtinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.086 (5)
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
O14−0.14283 (18)0.8107 (2)0.54940 (13)0.0717 (5)
O150.1367 (2)0.8258 (3)0.51556 (12)0.0931 (7)
O220.45964 (14)1.08367 (16)0.74426 (11)0.0562 (4)
N100.25123 (17)0.78999 (18)0.67247 (11)0.0479 (4)
N130.0378 (2)0.52139 (19)0.67025 (15)0.0621 (5)
N230.61410 (18)1.11628 (19)0.80393 (13)0.0534 (4)
C1−0.2338 (2)0.5566 (2)0.66492 (17)0.0546 (5)
C2−0.2327 (3)0.6165 (3)0.76241 (19)0.0742 (7)
C3−0.3594 (3)0.5798 (4)0.8033 (2)0.0860 (8)
C4−0.4916 (3)0.4842 (3)0.7485 (3)0.0888 (9)
C5−0.4981 (3)0.4269 (3)0.6516 (3)0.0944 (10)
C6−0.3691 (3)0.4630 (3)0.6095 (2)0.0768 (7)
C7−0.0924 (2)0.5884 (2)0.62070 (16)0.0550 (5)
C8−0.0343 (2)0.7579 (2)0.62179 (15)0.0521 (5)
C90.1256 (2)0.7912 (2)0.59864 (14)0.0560 (5)
C110.2384 (2)0.7330 (2)0.76507 (14)0.0478 (5)
C120.1330 (2)0.5989 (2)0.76299 (17)0.0543 (5)
C160.3373 (3)0.8063 (3)0.85519 (15)0.0599 (5)
C170.3345 (3)0.7461 (4)0.94383 (18)0.0787 (8)
C180.2311 (4)0.6129 (4)0.9423 (2)0.0884 (9)
C190.1311 (3)0.5418 (3)0.8540 (2)0.0733 (7)
C200.4057 (2)0.8317 (2)0.65084 (14)0.0497 (5)
C210.4573 (2)0.9998 (2)0.64844 (14)0.0492 (5)
C240.7062 (2)1.0913 (2)0.74752 (14)0.0455 (4)
C250.6252 (2)1.0381 (2)0.63910 (14)0.0505 (5)
C260.8751 (2)1.1172 (2)0.78925 (14)0.0460 (4)
C270.9750 (2)1.1281 (2)0.72391 (16)0.0529 (5)
C281.1338 (2)1.1536 (3)0.76154 (19)0.0634 (6)
C291.1953 (3)1.1658 (3)0.8629 (2)0.0721 (7)
C301.0978 (3)1.1550 (3)0.92885 (19)0.0741 (7)
C310.9385 (3)1.1308 (3)0.89236 (16)0.0611 (5)
H2−0.14430.68290.80100.089*
H3−0.35480.62080.86910.103*
H4−0.57620.45840.77680.107*
H5−0.58860.36350.61310.113*
H6−0.37520.42300.54330.092*
H7−0.12440.54200.54980.066*
H8−0.02830.81090.68880.062*
H130.001 (3)0.421 (2)0.677 (2)0.090 (8)*
H14−0.10160.83990.50480.108*
H160.40580.89640.85590.072*
H170.40160.79471.00420.094*
H180.22960.57141.00180.106*
H190.06030.45380.85460.088*
H20a0.40420.77700.58610.060*
H20b0.48170.79940.70180.060*
H210.38791.03360.59320.059*
H25a0.65900.94960.61260.061*
H25b0.64031.11740.59710.061*
H270.93421.11810.65460.064*
H281.19961.16260.71750.076*
H291.30251.18130.88770.086*
H301.13971.16410.99800.089*
H310.87351.12350.93700.073*
U11U22U33U12U13U23
O140.0543 (9)0.0779 (11)0.0738 (11)0.0015 (7)−0.0006 (7)0.0224 (8)
O150.0587 (10)0.1559 (19)0.0490 (9)−0.0199 (10)0.0048 (7)0.0315 (10)
O220.0372 (7)0.0582 (8)0.0719 (9)0.0069 (6)0.0176 (6)−0.0036 (6)
N100.0436 (8)0.0540 (9)0.0424 (8)−0.0008 (7)0.0114 (6)0.0051 (6)
N130.0544 (10)0.0427 (9)0.0903 (13)0.0053 (7)0.0271 (9)−0.0003 (9)
N230.0422 (9)0.0560 (9)0.0592 (10)0.0041 (7)0.0155 (7)−0.0031 (7)
C10.0456 (10)0.0480 (10)0.0690 (13)0.0034 (8)0.0147 (9)0.0102 (9)
C20.0495 (12)0.1070 (19)0.0675 (14)0.0148 (12)0.0178 (10)0.0111 (13)
C30.0662 (16)0.125 (2)0.0872 (18)0.0373 (16)0.0352 (14)0.0422 (17)
C40.0687 (17)0.0772 (17)0.146 (3)0.0275 (14)0.0540 (18)0.0518 (18)
C50.0519 (14)0.0548 (14)0.171 (3)−0.0052 (11)0.0279 (17)0.0121 (17)
C60.0554 (13)0.0520 (12)0.113 (2)−0.0036 (10)0.0177 (13)−0.0087 (12)
C70.0489 (11)0.0520 (11)0.0580 (11)−0.0035 (8)0.0162 (9)−0.0055 (9)
C80.0445 (10)0.0541 (11)0.0518 (11)−0.0007 (8)0.0082 (8)0.0049 (8)
C90.0467 (11)0.0674 (12)0.0446 (10)−0.0082 (9)0.0066 (8)0.0070 (9)
C110.0475 (10)0.0532 (10)0.0479 (10)0.0138 (8)0.0178 (8)0.0106 (8)
C120.0527 (11)0.0506 (11)0.0713 (13)0.0198 (9)0.0284 (10)0.0173 (9)
C160.0611 (12)0.0728 (13)0.0478 (11)0.0184 (10)0.0133 (9)0.0085 (9)
C170.0833 (17)0.113 (2)0.0503 (13)0.0401 (16)0.0175 (11)0.0187 (13)
C180.103 (2)0.115 (2)0.0788 (18)0.0539 (19)0.0466 (17)0.0552 (17)
C190.0775 (16)0.0741 (15)0.0921 (19)0.0343 (13)0.0428 (14)0.0422 (14)
C200.0439 (10)0.0563 (11)0.0471 (10)0.0031 (8)0.0152 (8)0.0016 (8)
C210.0375 (9)0.0577 (11)0.0511 (10)0.0055 (8)0.0104 (8)0.0083 (8)
C240.0401 (9)0.0447 (9)0.0519 (10)0.0050 (7)0.0147 (8)0.0056 (7)
C250.0389 (10)0.0609 (11)0.0508 (10)0.0030 (8)0.0136 (8)0.0092 (8)
C260.0398 (9)0.0439 (9)0.0531 (10)0.0051 (7)0.0110 (8)0.0069 (8)
C270.0437 (10)0.0561 (11)0.0585 (11)0.0078 (8)0.0141 (9)0.0046 (9)
C280.0406 (10)0.0675 (13)0.0827 (15)0.0112 (9)0.0182 (10)0.0046 (11)
C290.0412 (11)0.0707 (14)0.0983 (19)0.0137 (10)0.0022 (11)0.0102 (13)
C300.0646 (14)0.0812 (16)0.0663 (14)0.0123 (12)−0.0075 (11)0.0163 (12)
C310.0546 (12)0.0712 (13)0.0562 (12)0.0088 (10)0.0104 (9)0.0155 (10)
O14—C81.412 (3)C11—C161.386 (3)
O14—H140.8200C12—C191.395 (3)
O15—C91.227 (3)C16—C171.379 (4)
O22—N231.415 (2)C16—H160.9300
O22—C211.446 (2)C17—C181.383 (5)
N10—C91.345 (2)C17—H170.9300
N10—C111.432 (2)C18—C191.366 (4)
N10—C201.473 (2)C18—H180.9300
N13—C71.475 (3)C19—H190.9300
N13—C121.411 (3)C20—C211.516 (3)
N13—H130.931 (19)C20—H20a0.9700
N23—C241.280 (3)C20—H20b0.9700
C1—C21.390 (3)C21—C251.523 (3)
C1—C61.376 (3)C21—H210.9800
C1—C71.516 (3)C24—C251.497 (3)
C2—C31.377 (4)C24—C261.470 (3)
C2—H20.9300C25—H25a0.9700
C3—C41.363 (4)C25—H25b0.9700
C3—H30.9300C26—C271.395 (3)
C4—C51.363 (5)C26—C311.388 (3)
C4—H40.9300C27—C281.378 (3)
C5—C61.404 (4)C27—H270.9300
C5—H50.9300C28—C291.364 (4)
C6—H60.9300C28—H280.9300
C7—C81.529 (3)C29—C301.385 (4)
C7—H70.9800C29—H290.9300
C8—C91.522 (3)C30—C311.381 (4)
C8—H80.9800C30—H300.9300
C11—C121.396 (3)C31—H310.9300
C8—O14—H14109.00C17—C16—H16120.00
N23—O22—C21108.51 (14)C16—C17—C18119.5 (2)
C9—N10—C11122.14 (16)C16—C17—H17120.00
C9—N10—C20117.82 (15)C18—C17—H17120.00
C11—N10—C20119.62 (15)C17—C18—C19120.5 (3)
C7—N13—C12117.66 (16)C17—C18—H18120.00
C7—N13—H13109.8 (17)C19—C18—H18120.00
C12—N13—H13110.1 (16)C12—C19—C18121.2 (3)
O22—N23—C24108.88 (16)C12—C19—H19119.00
C2—C1—C6117.1 (2)C18—C19—H19119.00
C2—C1—C7122.4 (2)N10—C20—C21114.08 (15)
C6—C1—C7120.5 (2)N10—C20—H20a109.00
C1—C2—C3121.6 (2)N10—C20—H20b109.00
C1—C2—H2119.00C21—C20—H20a109.00
C3—C2—H2119.00C21—C20—H20b109.00
C2—C3—C4120.8 (3)H20a—C20—H20b108.00
C2—C3—H3120.00O22—C21—C20109.67 (15)
C4—C3—H3120.00O22—C21—C25103.98 (14)
C3—C4—C5119.1 (3)O22—C21—H21110.00
C3—C4—H4120.00C20—C21—C25111.47 (15)
C5—C4—H4120.00C20—C21—H21111.00
C4—C5—C6120.5 (3)C25—C21—H21111.00
C4—C5—H5120.00N23—C24—C25113.70 (17)
C6—C5—H5120.00N23—C24—C26120.91 (17)
C1—C6—C5120.9 (3)C25—C24—C26125.39 (16)
C1—C6—H6120.00C21—C25—C24100.10 (15)
C5—C6—H6120.00C21—C25—H25a112.00
N13—C7—C1113.45 (17)C21—C25—H25b112.00
N13—C7—C8109.22 (16)C24—C25—H25a112.00
N13—C7—H7107.00C24—C25—H25b112.00
C1—C7—C8112.31 (15)H25a—C25—H25b109.00
C1—C7—H7107.00C24—C26—C27119.42 (17)
C8—C7—H7107.00C24—C26—C31121.77 (19)
O14—C8—C7108.40 (16)C27—C26—C31118.82 (19)
O14—C8—C9109.81 (16)C26—C27—C28120.3 (2)
O14—C8—H8109.00C26—C27—H27120.00
C7—C8—C9112.00 (15)C28—C27—H27120.00
C7—C8—H8109.00C27—C28—C29120.5 (2)
C9—C8—H8109.00C27—C28—H28120.00
O15—C9—N10122.11 (18)C29—C28—H28120.00
O15—C9—C8119.30 (18)C28—C29—C30119.9 (2)
N10—C9—C8118.48 (16)C28—C29—H29120.00
N10—C11—C12119.65 (17)C30—C29—H29120.00
N10—C11—C16119.64 (18)C29—C30—C31120.3 (2)
C12—C11—C16120.59 (19)C29—C30—H30120.00
N13—C12—C11120.15 (19)C31—C30—H30120.00
N13—C12—C19121.85 (19)C26—C31—C30120.2 (2)
C11—C12—C19117.9 (2)C26—C31—H31120.00
C11—C16—C17120.3 (2)C30—C31—H31120.00
C11—C16—H16120.00
O14—C8—C9—O15−15.0 (3)C7—C8—C9—O15105.5 (2)
O14—C8—C9—N10161.30 (17)C7—C8—C9—N10−78.2 (2)
O22—N23—C24—C250.4 (2)C9—N10—C11—C1242.8 (3)
O22—N23—C24—C26179.36 (16)C9—N10—C11—C16−141.1 (2)
O22—C21—C25—C2420.06 (17)C9—N10—C20—C2174.2 (2)
N10—C11—C12—N13−1.1 (3)C11—N10—C9—O15−172.6 (2)
N10—C11—C12—C19175.89 (19)C11—N10—C9—C811.3 (3)
N10—C11—C16—C17−174.9 (2)C11—N10—C20—C21−113.19 (18)
N10—C20—C21—O2258.2 (2)C11—C12—C19—C18−1.2 (4)
N10—C20—C21—C25172.78 (15)C11—C16—C17—C18−0.7 (4)
N13—C7—C8—O14162.39 (16)C12—N13—C7—C1−79.9 (2)
N13—C7—C8—C941.1 (2)C12—N13—C7—C846.2 (2)
N13—C12—C19—C18175.7 (3)C12—C11—C16—C171.1 (4)
N23—O22—C21—C2097.71 (17)C16—C11—C12—N13−177.1 (2)
N23—O22—C21—C25−21.61 (18)C16—C11—C12—C19−0.1 (3)
N23—C24—C25—C21−13.3 (2)C16—C17—C18—C19−0.7 (5)
N23—C24—C26—C27−163.20 (18)C17—C18—C19—C121.7 (5)
N23—C24—C26—C3117.0 (3)C20—N10—C9—O15−0.1 (3)
C1—C2—C3—C4−0.8 (5)C20—N10—C9—C8−176.28 (15)
C1—C7—C8—O14−70.8 (2)C20—N10—C11—C12−129.51 (19)
C1—C7—C8—C9167.85 (17)C20—N10—C11—C1646.5 (3)
C2—C1—C6—C5−1.8 (4)C20—C21—C25—C24−98.02 (17)
C2—C1—C7—N1367.0 (3)C21—O22—N23—C2413.9 (2)
C2—C1—C7—C8−57.4 (3)C24—C26—C27—C28179.47 (19)
C2—C3—C4—C5−1.1 (5)C24—C26—C31—C30180.0 (2)
C3—C4—C5—C61.5 (4)C25—C24—C26—C2715.6 (3)
C4—C5—C6—C10.0 (4)C25—C24—C26—C31−164.2 (2)
C6—C1—C2—C32.2 (4)C26—C24—C25—C21167.78 (17)
C6—C1—C7—N13−111.5 (2)C26—C27—C28—C291.2 (4)
C6—C1—C7—C8124.0 (2)C27—C26—C31—C300.1 (3)
C7—N13—C12—C11−73.2 (2)C27—C28—C29—C30−1.1 (4)
C7—N13—C12—C19110.0 (2)C28—C29—C30—C310.5 (4)
C7—C1—C2—C3−176.4 (2)C29—C30—C31—C260.0 (4)
C7—C1—C6—C5176.8 (2)C31—C26—C27—C28−0.7 (3)
Cg4 is the centroid of the C26–C31 ring.
D—H···AD—HH···AD···AD—H···A
O14—H14···O150.822.142.632 (3)118
C16—H16···O220.932.443.206 (3)140
C25—H25a···O14i0.972.593.493 (3)154
C27—H27···O15ii0.932.403.302 (3)162
C28—H28···O22i0.932.523.152 (2)125
C19—H19···Cg4iii0.932.783.534 (3)139
N13—H13···Cg4iii0.93 (2)2.77 (2)3.671 (3)164
Table 1

Hydrogen-bond geometry (Å, °)

Cg4 is the centroid of the C26–C31 ring.

D—H⋯AD—HH⋯ADAD—H⋯A
C16—H16⋯O220.932.443.206 (3)140
C25—H25a⋯O14i0.972.593.493 (3)154
C27—H27⋯O15ii0.932.403.302 (3)162
C28—H28⋯O22i0.932.523.152 (2)125
C19—H19⋯Cg4iii0.932.783.534 (3)139
N13—H13⋯Cg4iii0.93 (2)2.77 (2)3.671 (3)164

Symmetry codes: (i) ; (ii) ; (iii) .

  7 in total

1.  A short history of SHELX.

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

2.  Effect of ring size or an additional heteroatom on the potency and selectivity of bicyclic benzylamine-type inhibitors of phenylethanolamine N-methyltransferase.

Authors:  G L Grunewald; V H Dahanukar; P Ching; K R Criscione
Journal:  J Med Chem       Date:  1996-08-30       Impact factor: 7.446

3.  Discovery and structure-activity relationships of imidazole-containing tetrahydrobenzodiazepine inhibitors of farnesyltransferase.

Authors:  C Z Ding; R Batorsky; R Bhide; H J Chao; Y Cho; S Chong; J Gullo-Brown; P Guo; S H Kim; F Lee; K Leftheris; A Miller; T Mitt; M Patel; B A Penhallow; C Ricca; W C Rose; R Schmidt; W A Slusarchyk; G Vite; N Yan; V Manne; J T Hunt
Journal:  J Med Chem       Date:  1999-12-16       Impact factor: 7.446

4.  1-Allyl-4-phenyl-2,3-dihydro-1H-1,5-benzodiazepin-2-one.

Authors:  Daouda Ballo; Noureddine Hamou Ahabchane; Hafid Zouihri; El Mokhtar Essassi; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-05-08

5.  1-Isopropenyl-1H-1,3-benzimidazol-2(3H)-one.

Authors:  Asmaa Saber; Hafid Zouihri; El Mokhtar Essassi; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-05-22

6.  3,4-Dimethyl-1H-1,2,4-triazepino[2,3-a]benzimidazol-2(3H)-one.

Authors:  Asmae Saber; Abdusalam Al Subari; Hafid Zouihri; El Mokhtar Essassi; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-04-17

7.  Structure validation in chemical crystallography.

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

1.  3-Hy-droxy-4-phenyl-1-(prop-2-en-1-yl)-2,3,4,5-tetra-hydro-1H-1,5-benzodiazepin-2-one.

Authors:  Mohamed Rida; Khalil Mamari; El Mokhtar Essassi; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-12-23

2.  5-Acetyl-3-hy-droxy-4-phenyl-4,5-dihydro-1H-1,5-benzodiazepin-2(3H)-one.

Authors:  Mohamed Rida; Abdusalam Alsubari; El Mokhtar Essassi; Hafid Zouihri; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-11-16
  2 in total

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