Literature DB >> 23424569

3-{5-Eth-oxy-carbonyl-1-[3-(2-oxopyrrol-idin-1-yl)prop-yl]-1H-benzimidazol-2-yl}benzoic acid.

Yeong Keng Yoon1, Mohamed Ashraf Ali, Soo Choon Tan, Mohd Mustaqim Rosli, Ibrahim Abdul Razak.   

Abstract

In the title compound, C(24)H(25)N(3)O(5), the eth-oxy group is disordered over two orientations in a 0.853 (14):0.147 (14) ratio. The benzimadazole ring system (r.m.s. deviation = 0.016 Å) makes a dihedral angle of 35.47 (7)° with the attached benzene ring. The pyrrolidine ring adopts an envelope conformation with a methyl-ene C atom as the flap. In the crystal, inversion dimers linked by pairs of O-H⋯N hydrogen bonds generate R(2) (2)(16) loops. C-H⋯O inter-actions link the dimers into a three-dimensional network.

Entities:  

Year:  2013        PMID: 23424569      PMCID: PMC3569823          DOI: 10.1107/S1600536813001116

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


Related literature

For a related structure and background to benzimidazoles, see: Yoon et al. (2012 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶). For puckering parameters, see: Cremer & Pople (1975 ▶).

Experimental

Crystal data

C24H25N3O5 M = 435.47 Monoclinic, a = 9.3097 (3) Å b = 24.8252 (7) Å c = 9.6761 (3) Å β = 112.322 (1)° V = 2068.71 (11) Å3 Z = 4 Mo Kα radiation μ = 0.10 mm−1 T = 100 K 0.39 × 0.23 × 0.08 mm

Data collection

Bruker SMART APEXII CCD diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.963, T max = 0.992 23636 measured reflections 6010 independent reflections 3706 reflections with I > 2σ(I) R int = 0.065

Refinement

R[F 2 > 2σ(F 2)] = 0.064 wR(F 2) = 0.134 S = 1.03 6010 reflections 317 parameters 69 restraints H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.37 e Å−3 Δρmin = −0.31 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) I, global. DOI: 10.1107/S1600536813001116/hb7017sup1.cif Click here for additional data file. Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536813001116/hb7017Isup2.hkl Click here for additional data file. Supplementary material file. DOI: 10.1107/S1600536813001116/hb7017Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C24H25N3O5F(000) = 920
Mr = 435.47Dx = 1.398 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 3829 reflections
a = 9.3097 (3) Åθ = 2.4–29.4°
b = 24.8252 (7) ŵ = 0.10 mm1
c = 9.6761 (3) ÅT = 100 K
β = 112.322 (1)°Plate, brown
V = 2068.71 (11) Å30.39 × 0.23 × 0.08 mm
Z = 4
Bruker SMART APEXII CCD diffractometer6010 independent reflections
Radiation source: fine-focus sealed tube3706 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.065
φ and ω scansθmax = 30.1°, θmin = 2.4°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −13→13
Tmin = 0.963, Tmax = 0.992k = −34→34
23636 measured reflectionsl = −8→13
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.064Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.134H atoms treated by a mixture of independent and constrained refinement
S = 1.03w = 1/[σ2(Fo2) + (0.0444P)2 + 0.6946P] where P = (Fo2 + 2Fc2)/3
6010 reflections(Δ/σ)max = 0.001
317 parametersΔρmax = 0.37 e Å3
69 restraintsΔρmin = −0.31 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*/UeqOcc. (<1)
O1−0.1036 (4)−0.15612 (14)0.1235 (6)0.0179 (7)0.853 (14)
C23−0.1927 (4)−0.20029 (16)0.1526 (4)0.0216 (8)0.853 (14)
H23A−0.3036−0.19640.08680.026*0.853 (14)
H23B−0.1847−0.19830.25750.026*0.853 (14)
C24−0.1357 (4)−0.25307 (15)0.1261 (8)0.0427 (14)0.853 (14)
H24A−0.1986−0.28170.14480.064*0.853 (14)
H24B−0.0270−0.25750.19350.064*0.853 (14)
H24C−0.1437−0.25510.02230.064*0.853 (14)
O1X−0.066 (4)−0.1693 (10)0.123 (4)0.043 (6)0.147 (14)
C23X−0.148 (5)−0.2161 (11)0.153 (3)0.054 (5)0.147 (14)
H23C−0.1018−0.22680.25910.064*0.147 (14)
H23D−0.2598−0.20800.12590.064*0.147 (14)
C24X−0.127 (4)−0.2575 (9)0.057 (3)0.054 (5)0.147 (14)
H24D−0.1522−0.29270.08790.080*0.147 (14)
H24E−0.0185−0.25750.06570.080*0.147 (14)
H24F−0.1952−0.2504−0.04660.080*0.147 (14)
O2−0.02946 (16)0.06006 (5)−0.61398 (17)0.0181 (3)
O30.12028 (16)0.11302 (5)−0.69174 (16)0.0201 (3)
O40.43579 (19)0.23361 (6)0.23971 (19)0.0333 (4)
O50.06150 (17)−0.15773 (6)0.36566 (17)0.0231 (3)
N10.30457 (18)0.03432 (6)0.07554 (19)0.0142 (3)
N20.17804 (18)−0.02457 (6)−0.10670 (19)0.0147 (4)
N30.61523 (19)0.17298 (6)0.2256 (2)0.0184 (4)
C10.2460 (2)−0.00527 (7)0.1413 (2)0.0135 (4)
C20.2562 (2)−0.01238 (8)0.2868 (2)0.0145 (4)
H2A0.31060.01240.36380.017*
C30.1832 (2)−0.05727 (7)0.3144 (2)0.0151 (4)
H3A0.1897−0.06400.41330.018*
C40.0994 (2)−0.09329 (7)0.1994 (2)0.0147 (4)
C50.0890 (2)−0.08568 (8)0.0537 (2)0.0158 (4)
H5A0.0315−0.1097−0.02400.019*
C60.1663 (2)−0.04131 (7)0.0261 (2)0.0139 (4)
C70.2601 (2)0.02085 (7)−0.0722 (2)0.0139 (4)
C80.2977 (2)0.05271 (7)−0.1826 (2)0.0145 (4)
C90.1876 (2)0.05557 (7)−0.3289 (2)0.0148 (4)
H9A0.09240.0365−0.35480.018*
C100.2155 (2)0.08584 (7)−0.4364 (2)0.0148 (4)
C110.3555 (2)0.11325 (8)−0.3997 (2)0.0178 (4)
H11A0.37390.1347−0.47250.021*
C120.4683 (2)0.10921 (8)−0.2565 (2)0.0185 (4)
H12A0.56500.1271−0.23250.022*
C130.4402 (2)0.07915 (8)−0.1481 (2)0.0177 (4)
H13A0.51790.0765−0.05040.021*
C140.0980 (2)0.08844 (7)−0.5930 (2)0.0153 (4)
C150.3717 (2)0.08531 (7)0.1508 (2)0.0155 (4)
H15A0.30730.09890.20440.019*
H15B0.36790.11230.07420.019*
C160.5390 (2)0.07964 (8)0.2613 (2)0.0176 (4)
H16A0.60420.06560.20900.021*
H16B0.54350.05360.34040.021*
C170.6019 (3)0.13412 (8)0.3320 (2)0.0212 (5)
H17A0.53220.14890.37860.025*
H17B0.70540.12870.41210.025*
C180.7451 (3)0.17112 (9)0.1760 (3)0.0262 (5)
H18A0.74940.13600.12930.031*
H18B0.84510.17740.26040.031*
C190.7087 (3)0.21703 (9)0.0613 (3)0.0283 (5)
H19A0.80510.23480.06450.034*
H19B0.65050.2036−0.04110.034*
C200.6095 (3)0.25556 (8)0.1106 (3)0.0280 (5)
H20A0.67400.28460.17430.034*
H20B0.52690.27200.02300.034*
C210.5400 (2)0.22093 (8)0.1978 (2)0.0206 (5)
C220.0213 (2)−0.13958 (8)0.2405 (2)0.0181 (4)
H1O2−0.085 (4)0.0523 (13)−0.727 (4)0.088 (12)*
U11U22U33U12U13U23
O10.0142 (12)0.0183 (13)0.0183 (12)−0.0053 (9)0.0027 (10)0.0015 (11)
C230.0192 (16)0.0166 (16)0.0258 (16)−0.0079 (11)0.0050 (13)0.0021 (12)
C240.0372 (19)0.0253 (16)0.064 (4)−0.0002 (13)0.018 (2)−0.0081 (19)
O1X0.062 (15)0.034 (9)0.021 (8)−0.021 (9)0.004 (11)0.003 (9)
C23X0.090 (13)0.025 (8)0.054 (10)−0.008 (8)0.037 (10)−0.004 (8)
C24X0.090 (13)0.025 (8)0.054 (10)−0.008 (8)0.037 (10)−0.004 (8)
O20.0158 (7)0.0229 (7)0.0141 (8)−0.0050 (6)0.0041 (6)−0.0017 (6)
O30.0208 (7)0.0225 (7)0.0168 (8)−0.0016 (6)0.0069 (6)0.0022 (6)
O40.0335 (9)0.0364 (9)0.0320 (11)0.0089 (7)0.0148 (8)−0.0014 (8)
O50.0236 (8)0.0253 (8)0.0175 (8)−0.0030 (6)0.0047 (7)0.0059 (6)
N10.0123 (8)0.0176 (8)0.0125 (9)−0.0010 (6)0.0045 (7)−0.0019 (7)
N20.0119 (8)0.0194 (8)0.0115 (9)−0.0008 (6)0.0029 (7)0.0002 (7)
N30.0173 (9)0.0187 (8)0.0185 (10)−0.0009 (7)0.0060 (8)0.0018 (7)
C10.0100 (9)0.0159 (9)0.0143 (10)0.0005 (7)0.0042 (8)−0.0003 (8)
C20.0134 (9)0.0174 (9)0.0113 (10)0.0008 (7)0.0031 (8)0.0002 (7)
C30.0132 (9)0.0192 (10)0.0132 (10)0.0017 (8)0.0053 (8)0.0028 (8)
C40.0124 (9)0.0169 (9)0.0144 (10)0.0010 (7)0.0046 (8)0.0011 (8)
C50.0120 (9)0.0178 (9)0.0159 (11)0.0001 (7)0.0033 (8)−0.0019 (8)
C60.0122 (9)0.0183 (9)0.0097 (10)0.0015 (7)0.0024 (8)0.0003 (8)
C70.0105 (9)0.0166 (9)0.0128 (10)0.0021 (7)0.0026 (8)−0.0002 (8)
C80.0146 (10)0.0172 (9)0.0130 (10)0.0014 (7)0.0067 (8)−0.0001 (8)
C90.0125 (9)0.0162 (9)0.0156 (11)−0.0004 (7)0.0052 (8)−0.0014 (8)
C100.0154 (9)0.0154 (9)0.0139 (10)0.0018 (7)0.0058 (8)−0.0010 (8)
C110.0178 (10)0.0206 (10)0.0177 (11)−0.0034 (8)0.0096 (9)−0.0018 (8)
C120.0151 (10)0.0234 (10)0.0180 (11)−0.0038 (8)0.0076 (9)−0.0011 (9)
C130.0145 (10)0.0223 (10)0.0145 (11)−0.0004 (8)0.0036 (9)−0.0009 (8)
C140.0160 (10)0.0154 (9)0.0152 (11)0.0010 (8)0.0066 (9)−0.0007 (8)
C150.0168 (10)0.0145 (9)0.0158 (11)−0.0007 (8)0.0069 (9)−0.0024 (8)
C160.0175 (10)0.0176 (10)0.0149 (11)−0.0006 (8)0.0032 (9)0.0007 (8)
C170.0256 (11)0.0217 (10)0.0130 (11)−0.0055 (9)0.0037 (9)0.0013 (8)
C180.0201 (11)0.0253 (11)0.0361 (15)0.0011 (9)0.0141 (11)0.0038 (10)
C190.0347 (13)0.0267 (11)0.0276 (13)−0.0046 (10)0.0165 (11)0.0015 (10)
C200.0372 (14)0.0202 (11)0.0266 (13)−0.0011 (10)0.0120 (11)0.0029 (9)
C210.0219 (11)0.0209 (10)0.0169 (11)0.0007 (8)0.0048 (9)−0.0016 (8)
C220.0143 (10)0.0172 (9)0.0216 (12)0.0001 (8)0.0056 (9)0.0005 (9)
O1—C221.343 (5)C3—H3A0.9500
O1—C231.465 (3)C4—C51.388 (3)
C23—C241.472 (4)C4—C221.492 (3)
C23—H23A0.9900C5—C61.396 (3)
C23—H23B0.9900C5—H5A0.9500
C24—H24A0.9800C7—C81.475 (3)
C24—H24B0.9800C8—C91.399 (3)
C24—H24C0.9800C8—C131.402 (3)
O1X—C221.34 (3)C9—C101.386 (3)
O1X—C23X1.478 (17)C9—H9A0.9500
C23X—C24X1.446 (17)C10—C111.392 (3)
C23X—H23C0.9900C10—C141.495 (3)
C23X—H23D0.9900C11—C121.388 (3)
C24X—H24D0.9800C11—H11A0.9500
C24X—H24E0.9800C12—C131.390 (3)
C24X—H24F0.9800C12—H12A0.9500
O2—C141.328 (2)C13—H13A0.9500
O2—H1O21.03 (4)C15—C161.525 (3)
O3—C141.216 (2)C15—H15A0.9900
O4—C211.226 (2)C15—H15B0.9900
O5—C221.211 (2)C16—C171.528 (3)
N1—C71.370 (2)C16—H16A0.9900
N1—C11.390 (2)C16—H16B0.9900
N1—C151.475 (2)C17—H17A0.9900
N2—C71.331 (2)C17—H17B0.9900
N2—C61.394 (2)C18—C191.536 (3)
N3—C211.355 (3)C18—H18A0.9900
N3—C171.450 (3)C18—H18B0.9900
N3—C181.462 (3)C19—C201.527 (3)
C1—C21.386 (3)C19—H19A0.9900
C1—C61.401 (3)C19—H19B0.9900
C2—C31.383 (3)C20—C211.511 (3)
C2—H2A0.9500C20—H20A0.9900
C3—C41.410 (3)C20—H20B0.9900
C22—O1—C23116.1 (4)C12—C11—C10119.99 (19)
O1—C23—C24111.4 (3)C12—C11—H11A120.0
O1—C23—H23A109.3C10—C11—H11A120.0
C24—C23—H23A109.3C11—C12—C13120.27 (19)
O1—C23—H23B109.3C11—C12—H12A119.9
C24—C23—H23B109.3C13—C12—H12A119.9
H23A—C23—H23B108.0C12—C13—C8120.24 (19)
C22—O1X—C23X117 (2)C12—C13—H13A119.9
C24X—C23X—O1X103.0 (18)C8—C13—H13A119.9
C24X—C23X—H23C111.2O3—C14—O2123.72 (19)
O1X—C23X—H23C111.2O3—C14—C10122.72 (18)
C24X—C23X—H23D111.2O2—C14—C10113.53 (17)
O1X—C23X—H23D111.2N1—C15—C16113.28 (15)
H23C—C23X—H23D109.1N1—C15—H15A108.9
C23X—C24X—H24D109.5C16—C15—H15A108.9
C23X—C24X—H24E109.5N1—C15—H15B108.9
H24D—C24X—H24E109.5C16—C15—H15B108.9
C23X—C24X—H24F109.5H15A—C15—H15B107.7
H24D—C24X—H24F109.5C15—C16—C17110.36 (16)
H24E—C24X—H24F109.5C15—C16—H16A109.6
C14—O2—H1O2108.8 (19)C17—C16—H16A109.6
C7—N1—C1106.81 (15)C15—C16—H16B109.6
C7—N1—C15128.88 (16)C17—C16—H16B109.6
C1—N1—C15123.18 (16)H16A—C16—H16B108.1
C7—N2—C6105.04 (16)N3—C17—C16113.13 (17)
C21—N3—C17123.25 (18)N3—C17—H17A109.0
C21—N3—C18113.08 (17)C16—C17—H17A109.0
C17—N3—C18121.13 (17)N3—C17—H17B109.0
C2—C1—N1131.88 (18)C16—C17—H17B109.0
C2—C1—C6122.52 (18)H17A—C17—H17B107.8
N1—C1—C6105.60 (17)N3—C18—C19103.34 (17)
C3—C2—C1116.74 (18)N3—C18—H18A111.1
C3—C2—H2A121.6C19—C18—H18A111.1
C1—C2—H2A121.6N3—C18—H18B111.1
C2—C3—C4121.57 (19)C19—C18—H18B111.1
C2—C3—H3A119.2H18A—C18—H18B109.1
C4—C3—H3A119.2C20—C19—C18103.47 (18)
C5—C4—C3121.29 (18)C20—C19—H19A111.1
C5—C4—C22121.47 (18)C18—C19—H19A111.1
C3—C4—C22117.23 (18)C20—C19—H19B111.1
C4—C5—C6117.34 (18)C18—C19—H19B111.1
C4—C5—H5A121.3H19A—C19—H19B109.0
C6—C5—H5A121.3C21—C20—C19104.83 (17)
N2—C6—C5129.66 (18)C21—C20—H20A110.8
N2—C6—C1109.85 (17)C19—C20—H20A110.8
C5—C6—C1120.48 (19)C21—C20—H20B110.8
N2—C7—N1112.70 (17)C19—C20—H20B110.8
N2—C7—C8122.94 (18)H20A—C20—H20B108.9
N1—C7—C8124.36 (17)O4—C21—N3125.0 (2)
C9—C8—C13118.74 (18)O4—C21—C20126.77 (19)
C9—C8—C7118.40 (17)N3—C21—C20108.20 (18)
C13—C8—C7122.84 (19)O5—C22—O1X120.1 (11)
C10—C9—C8120.84 (18)O5—C22—O1124.7 (2)
C10—C9—H9A119.6O1X—C22—O120.7 (16)
C8—C9—H9A119.6O5—C22—C4123.81 (19)
C9—C10—C11119.84 (19)O1X—C22—C4113.4 (11)
C9—C10—C14120.71 (17)O1—C22—C4111.4 (2)
C11—C10—C14119.43 (18)
C22—O1—C23—C24−90.3 (5)C10—C11—C12—C13−1.9 (3)
C22—O1X—C23X—C24X−138 (3)C11—C12—C13—C80.0 (3)
C7—N1—C1—C2179.4 (2)C9—C8—C13—C122.4 (3)
C15—N1—C1—C2−11.8 (3)C7—C8—C13—C12−179.14 (18)
C7—N1—C1—C6−0.3 (2)C9—C10—C14—O3−177.43 (18)
C15—N1—C1—C6168.44 (16)C11—C10—C14—O31.2 (3)
N1—C1—C2—C3−179.75 (19)C9—C10—C14—O20.5 (3)
C6—C1—C2—C30.0 (3)C11—C10—C14—O2179.16 (17)
C1—C2—C3—C4−1.5 (3)C7—N1—C15—C16−113.5 (2)
C2—C3—C4—C51.2 (3)C1—N1—C15—C1680.4 (2)
C2—C3—C4—C22−178.28 (18)N1—C15—C16—C17178.68 (17)
C3—C4—C5—C60.8 (3)C21—N3—C17—C16120.6 (2)
C22—C4—C5—C6−179.84 (17)C18—N3—C17—C16−78.7 (2)
C7—N2—C6—C5178.0 (2)C15—C16—C17—N3−65.6 (2)
C7—N2—C6—C1−1.1 (2)C21—N3—C18—C19−20.0 (2)
C4—C5—C6—N2178.75 (18)C17—N3—C18—C19177.57 (18)
C4—C5—C6—C1−2.2 (3)N3—C18—C19—C2026.0 (2)
C2—C1—C6—N2−178.87 (17)C18—C19—C20—C21−23.6 (2)
N1—C1—C6—N20.9 (2)C17—N3—C21—O4−11.8 (3)
C2—C1—C6—C52.0 (3)C18—N3—C21—O4−173.9 (2)
N1—C1—C6—C5−178.27 (17)C17—N3—C21—C20166.91 (18)
C6—N2—C7—N10.9 (2)C18—N3—C21—C204.9 (2)
C6—N2—C7—C8−179.02 (17)C19—C20—C21—O4−168.8 (2)
C1—N1—C7—N2−0.4 (2)C19—C20—C21—N312.5 (2)
C15—N1—C7—N2−168.29 (17)C23X—O1X—C22—O518 (3)
C1—N1—C7—C8179.56 (17)C23X—O1X—C22—O1−91 (4)
C15—N1—C7—C811.6 (3)C23X—O1X—C22—C4−179.9 (15)
N2—C7—C8—C935.6 (3)C23—O1—C22—O5−1.6 (4)
N1—C7—C8—C9−144.28 (19)C23—O1—C22—O1X82 (4)
N2—C7—C8—C13−142.87 (19)C23—O1—C22—C4−177.9 (2)
N1—C7—C8—C1337.2 (3)C5—C4—C22—O5156.8 (2)
C13—C8—C9—C10−2.8 (3)C3—C4—C22—O5−23.7 (3)
C7—C8—C9—C10178.65 (17)C5—C4—C22—O1X−4.5 (18)
C8—C9—C10—C110.9 (3)C3—C4—C22—O1X174.9 (18)
C8—C9—C10—C14179.48 (17)C5—C4—C22—O1−26.8 (3)
C9—C10—C11—C121.5 (3)C3—C4—C22—O1152.6 (2)
C14—C10—C11—C12−177.12 (18)
D—H···AD—HH···AD···AD—H···A
O2—H1O2···N2i1.04 (4)1.66 (4)2.675 (2)166 (3)
C5—H5A···O3i0.952.573.367 (2)141
C9—H9A···O2i0.952.463.177 (2)132
C15—H15A···O3ii0.992.343.314 (3)167
C17—H17B···O5iii0.992.513.429 (3)154
C20—H20B···O4iv0.992.553.340 (3)137
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯A D—HH⋯A DA D—H⋯A
O2—H1O2⋯N2i 1.04 (4)1.66 (4)2.675 (2)166 (3)
C5—H5A⋯O3i 0.952.573.367 (2)141
C9—H9A⋯O2i 0.952.463.177 (2)132
C15—H15A⋯O3ii 0.992.343.314 (3)167
C17—H17B⋯O5iii 0.992.513.429 (3)154
C20—H20B⋯O4iv 0.992.553.340 (3)137

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

  3 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.  Ethyl 2-(4-nitro-phen-yl)-1-[3-(2-oxopyrrolidin-1-yl)prop-yl]-1H-benzimidazole-5-carboxyl-ate.

Authors:  Yeong Keng Yoon; Mohamed Ashraf Ali; Tan Soo Choon; Safra Izuani Jama Asik; Ibrahim Abdul Razak
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-12-10

3.  Structure validation in chemical crystallography.

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

北京卡尤迪生物科技股份有限公司 © 2022-2023.