Literature DB >> 21754823

3-(4-Chloro-benzo-yl)-4-(4-chloro-phen-yl)-1-phenethyl-piperidin-4-ol.

Abdullah Aydın, Mehmet Akkurt, Ebru Mete, Ertan Sahin, Halise Inci Gul.   

Abstract

In the title compound, C(26)H(25)Cl(2)NO(2), the piperidine ring adopts a chair conformation with a cis configuration of the carbonyl and hy-droxy substituents. The dihedral angle between the aromatic rings of the chloro-benzene groups is 24.3 (2)°. The phenyl ring forms dihedral angles of 59.4 (3) and 44.1 (3)° with the benzene rings. In the crystal, mol-ecules are linked by inter-molecular O-H⋯N and C-H⋯O hydrogen bonds and C-H⋯π inter-actions into layers parallel to the bc plane.

Entities:  

Year:  2011        PMID: 21754823      PMCID: PMC3120371          DOI: 10.1107/S1600536811018034

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


Related literature

For the synthesis and biological activity of Mannich bases, see: Dimmock et al. (1991 ▶); Dimmock & Kumar (1997) ▶; Gul et al. (2001 ▶, 2004 ▶, 2005 ▶); Atwal et al. (1969 ▶); Gul (2005 ▶); Erciyas et al. (1994 ▶); Porretta et al. (1995 ▶); Piscopo et al. (1986 ▶); Manavathu et al. (1998 ▶); Vashishtha et al. (1998 ▶); Canturk et al. (2008 ▶); Suleyman et al. (2007 ▶); Yogeeswari et al. (2005 ▶); Mete et al. (2010a ▶,b ▶) For MOPAC AM1 theoretical full-geometry optimization, see: Dewar et al. (1985 ▶); Stewart (1993 ▶). For bond-length data, see: Allen et al. (1987 ▶). For puckering parameters, see: Cremer & Pople (1975 ▶).

Experimental

Crystal data

C26H25Cl2NO2 M = 454.37 Monoclinic, a = 16.950 (4) Å b = 12.863 (3) Å c = 10.792 (2) Å β = 97.779 (13)° V = 2331.3 (9) Å3 Z = 4 Mo Kα radiation μ = 0.30 mm−1 T = 294 K 0.23 × 0.14 × 0.12 mm

Data collection

Rigaku R-AXIS RAPID-S diffractometer Absorption correction: multi-scan [XABS2 (Parkin et al., 1995 ▶); cubic fit to sin(θ)/λ, 24 parameters] T min = 0.934, T max = 0.965 4830 measured reflections 4830 independent reflections 1939 reflections with I > 2σ(I)

Refinement

R[F 2 > 2σ(F 2)] = 0.097 wR(F 2) = 0.148 S = 1.07 4830 reflections 282 parameters H-atom parameters constrained Δρmax = 0.18 e Å−3 Δρmin = −0.13 e Å−3 Data collection: CrystalClear (Rigaku/MSC, 2005 ▶); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SIR97 (Altomare et al., 1999 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997 ▶) and PLATON (Spek, 2009 ▶); software used to prepare material for publication: WinGX (Farrugia, 1999 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536811018034/rz2590sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536811018034/rz2590Isup2.hkl Supplementary material file. DOI: 10.1107/S1600536811018034/rz2590Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C26H25Cl2NO2F(000) = 952
Mr = 454.37Dx = 1.295 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 5626 reflections
a = 16.950 (4) Åθ = 2.4–30.5°
b = 12.863 (3) ŵ = 0.30 mm1
c = 10.792 (2) ÅT = 294 K
β = 97.779 (13)°Block, colourless
V = 2331.3 (9) Å30.23 × 0.14 × 0.12 mm
Z = 4
Rigaku R-AXIS RAPID-S diffractometer4830 independent reflections
Radiation source: Sealed Tube1939 reflections with I > 2σ(I)
Graphite MonochromatorRint = 0.000
Detector resolution: 10.00 pixels mm-1θmax = 26.5°, θmin = 2.4°
dtprofit.ref scansh = −21→21
Absorption correction: multi-scan [XABS2 (Parkin et al., 1995); cubic fit to sin(θ)/λ - 24 parameters]k = 0→16
Tmin = 0.934, Tmax = 0.965l = 0→13
4830 measured reflections
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.097Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.148H-atom parameters constrained
S = 1.07w = 1/[σ2(Fo2) + (0.0094P)2 + 1.4373P] where P = (Fo2 + 2Fc2)/3
4830 reflections(Δ/σ)max < 0.001
282 parametersΔρmax = 0.18 e Å3
0 restraintsΔρmin = −0.13 e Å3
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles
Refinement. Refinement on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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
Cl10.45921 (10)0.30278 (16)0.49332 (19)0.1484 (10)
Cl20.47453 (11)0.57277 (17)0.1905 (2)0.1803 (13)
O10.0660 (2)0.3454 (2)0.3384 (3)0.0716 (12)
O20.08304 (19)0.5228 (2)0.1541 (3)0.0769 (14)
N1−0.0050 (2)0.2257 (3)0.0508 (3)0.0590 (16)
C1−0.1997 (4)0.1029 (5)−0.2619 (7)0.112 (3)
C2−0.2733 (7)0.1035 (6)−0.3331 (8)0.146 (5)
C3−0.3396 (5)0.1102 (6)−0.2802 (11)0.136 (5)
C4−0.3367 (5)0.1168 (5)−0.1543 (9)0.128 (4)
C5−0.2612 (4)0.1186 (5)−0.0817 (6)0.106 (3)
C6−0.1933 (3)0.1121 (4)−0.1342 (6)0.074 (2)
C7−0.1130 (3)0.1128 (4)−0.0571 (5)0.089 (3)
C8−0.0868 (3)0.2217 (3)−0.0146 (4)0.0683 (17)
C90.0000 (3)0.1708 (4)0.1714 (4)0.0685 (17)
C100.0822 (3)0.1743 (3)0.2431 (4)0.0651 (17)
C110.1144 (3)0.2856 (3)0.2674 (4)0.0601 (17)
C120.1052 (2)0.3410 (3)0.1367 (4)0.0521 (17)
C130.0195 (2)0.3339 (3)0.0750 (4)0.0598 (17)
C140.1317 (3)0.4537 (4)0.1482 (4)0.0581 (17)
C150.2176 (3)0.4812 (4)0.1536 (4)0.0581 (17)
C160.2732 (3)0.4180 (4)0.1104 (4)0.070 (2)
C170.3525 (3)0.4459 (4)0.1192 (5)0.089 (2)
C180.3752 (3)0.5378 (5)0.1759 (6)0.096 (3)
C190.3223 (4)0.6037 (4)0.2184 (6)0.102 (3)
C200.2425 (3)0.5758 (4)0.2084 (5)0.082 (3)
C210.2001 (3)0.2836 (4)0.3290 (4)0.0582 (17)
C220.2562 (3)0.2166 (4)0.2909 (4)0.0733 (19)
C230.3354 (3)0.2222 (4)0.3407 (5)0.087 (3)
C240.3593 (3)0.2945 (5)0.4313 (5)0.084 (2)
C250.3063 (4)0.3599 (4)0.4732 (5)0.085 (3)
C260.2267 (3)0.3553 (4)0.4218 (4)0.0694 (19)
H1−0.154100.09610−0.300300.1340*
H1A0.057000.311900.399600.1070*
H2−0.276900.09920−0.419700.1750*
H3−0.388700.11030−0.330400.1630*
H4−0.383000.12010−0.117100.1540*
H5−0.257900.124300.004800.1270*
H7A−0.074300.08360−0.105700.1070*
H7B−0.114500.069100.015800.1070*
H8A−0.090800.26700−0.087100.0820*
H8B−0.122800.248100.040600.0820*
H9A−0.015600.098800.156300.0820*
H9B−0.037200.202100.221400.0820*
H10A0.118100.136300.196800.0780*
H10B0.081700.139500.322600.0780*
H120.138900.304700.083700.0620*
H13A−0.015000.366000.128800.0720*
H13B0.013700.37200−0.003300.0720*
H160.257000.354600.074200.0840*
H170.389200.403200.087400.1060*
H190.339300.667100.254000.1220*
H200.205800.620000.238100.0990*
H220.240100.166800.230400.0880*
H230.372300.177200.313100.1040*
H250.323100.407600.535900.1020*
H260.190600.401000.450100.0830*
U11U22U33U12U13U23
Cl10.0835 (12)0.1827 (19)0.1682 (18)−0.0113 (12)−0.0226 (11)−0.0167 (15)
Cl20.1017 (14)0.190 (2)0.243 (3)−0.0701 (14)0.0008 (15)−0.0200 (18)
O10.086 (2)0.076 (2)0.058 (2)0.0178 (19)0.0290 (18)0.0100 (17)
O20.084 (2)0.063 (2)0.085 (3)0.0156 (19)0.016 (2)−0.0046 (19)
N10.063 (3)0.059 (3)0.056 (2)−0.004 (2)0.012 (2)0.005 (2)
C10.121 (6)0.112 (5)0.103 (6)−0.018 (4)0.016 (5)−0.025 (4)
C20.192 (10)0.118 (6)0.113 (7)−0.012 (7)−0.033 (8)−0.029 (5)
C30.104 (7)0.109 (6)0.184 (10)−0.020 (5)−0.020 (7)0.010 (7)
C40.100 (6)0.117 (6)0.171 (8)−0.004 (4)0.032 (6)0.036 (6)
C50.076 (4)0.131 (6)0.112 (5)−0.012 (4)0.014 (4)0.029 (4)
C60.077 (4)0.067 (3)0.079 (4)−0.016 (3)0.014 (4)0.001 (3)
C70.078 (4)0.074 (4)0.114 (5)−0.015 (3)0.006 (4)−0.002 (3)
C80.070 (3)0.066 (3)0.070 (3)−0.001 (3)0.013 (3)0.005 (3)
C90.076 (3)0.065 (3)0.067 (3)−0.003 (3)0.019 (3)0.014 (3)
C100.073 (3)0.060 (3)0.064 (3)0.003 (3)0.015 (3)0.010 (3)
C110.070 (3)0.063 (3)0.049 (3)0.012 (3)0.014 (3)0.002 (3)
C120.059 (3)0.050 (3)0.049 (3)0.001 (2)0.014 (2)0.000 (2)
C130.068 (3)0.059 (3)0.054 (3)0.003 (2)0.014 (2)0.002 (2)
C140.074 (3)0.057 (3)0.045 (3)−0.003 (3)0.014 (2)0.002 (2)
C150.069 (3)0.051 (3)0.053 (3)−0.007 (3)0.004 (3)0.010 (2)
C160.061 (3)0.073 (4)0.076 (4)−0.005 (3)0.007 (3)−0.002 (3)
C170.073 (4)0.094 (4)0.098 (4)−0.016 (3)0.010 (3)−0.004 (4)
C180.079 (4)0.092 (5)0.109 (5)−0.025 (4)−0.014 (4)0.008 (4)
C190.118 (6)0.068 (4)0.112 (5)−0.031 (4)−0.013 (4)−0.004 (4)
C200.101 (5)0.061 (4)0.082 (4)−0.007 (3)0.003 (3)0.004 (3)
C210.071 (3)0.060 (3)0.044 (3)0.009 (3)0.009 (2)0.006 (2)
C220.064 (3)0.085 (4)0.070 (3)0.010 (3)0.006 (3)−0.010 (3)
C230.071 (4)0.101 (5)0.088 (4)0.018 (3)0.006 (3)−0.007 (4)
C240.066 (4)0.091 (4)0.091 (4)0.000 (3)−0.002 (3)0.008 (4)
C250.098 (5)0.078 (4)0.075 (4)0.000 (3)−0.004 (4)−0.001 (3)
C260.087 (4)0.063 (3)0.060 (3)0.012 (3)0.017 (3)0.006 (3)
Cl1—C241.738 (5)C21—C221.386 (7)
Cl2—C181.729 (6)C22—C231.379 (7)
O1—C111.422 (6)C23—C241.370 (8)
O2—C141.220 (6)C24—C251.353 (8)
O1—H1A0.8200C25—C261.389 (8)
N1—C91.473 (6)C1—H10.9300
N1—C131.466 (5)C2—H20.9300
N1—C81.469 (6)C3—H30.9300
C1—C21.374 (13)C4—H40.9300
C1—C61.373 (10)C5—H50.9300
C2—C31.330 (15)C7—H7A0.9700
C3—C41.356 (15)C7—H7B0.9700
C4—C51.407 (11)C8—H8A0.9700
C5—C61.352 (9)C8—H8B0.9700
C6—C71.496 (8)C9—H9A0.9700
C7—C81.521 (7)C9—H9B0.9700
C9—C101.500 (7)C10—H10A0.9700
C10—C111.542 (6)C10—H10B0.9700
C11—C121.569 (6)C12—H120.9800
C11—C211.514 (7)C13—H13A0.9700
C12—C141.518 (6)C13—H13B0.9700
C12—C131.517 (5)C16—H160.9300
C14—C151.492 (7)C17—H170.9300
C15—C161.373 (7)C19—H190.9300
C15—C201.393 (7)C20—H200.9300
C16—C171.382 (7)C22—H220.9300
C17—C181.362 (8)C23—H230.9300
C18—C191.358 (8)C25—H250.9300
C19—C201.389 (8)C26—H260.9300
C21—C261.391 (7)
C11—O1—H1A109.00C3—C2—H2119.00
C8—N1—C9110.2 (3)C2—C3—H3119.00
C8—N1—C13110.2 (3)C4—C3—H3119.00
C9—N1—C13108.5 (3)C3—C4—H4121.00
C2—C1—C6120.2 (7)C5—C4—H4121.00
C1—C2—C3121.1 (9)C4—C5—H5119.00
C2—C3—C4121.1 (9)C6—C5—H5119.00
C3—C4—C5117.8 (8)C6—C7—H7A109.00
C4—C5—C6121.8 (7)C6—C7—H7B109.00
C1—C6—C5118.0 (6)C8—C7—H7A109.00
C1—C6—C7120.1 (5)C8—C7—H7B109.00
C5—C6—C7121.9 (6)H7A—C7—H7B108.00
C6—C7—C8112.3 (4)N1—C8—H8A109.00
N1—C8—C7113.3 (4)N1—C8—H8B109.00
N1—C9—C10112.3 (4)C7—C8—H8A109.00
C9—C10—C11113.5 (4)C7—C8—H8B109.00
O1—C11—C10112.2 (4)H8A—C8—H8B108.00
O1—C11—C12104.1 (3)N1—C9—H9A109.00
C10—C11—C12106.2 (3)N1—C9—H9B109.00
C10—C11—C21110.8 (4)C10—C9—H9A109.00
C12—C11—C21112.0 (4)C10—C9—H9B109.00
O1—C11—C21111.2 (4)H9A—C9—H9B108.00
C11—C12—C13109.9 (3)C9—C10—H10A109.00
C11—C12—C14111.6 (3)C9—C10—H10B109.00
C13—C12—C14110.4 (3)C11—C10—H10A109.00
N1—C13—C12111.5 (3)C11—C10—H10B109.00
O2—C14—C12120.4 (4)H10A—C10—H10B108.00
C12—C14—C15120.4 (4)C11—C12—H12108.00
O2—C14—C15119.2 (4)C13—C12—H12108.00
C14—C15—C16123.9 (5)C14—C12—H12108.00
C14—C15—C20117.5 (4)N1—C13—H13A109.00
C16—C15—C20118.6 (5)N1—C13—H13B109.00
C15—C16—C17121.9 (5)C12—C13—H13A109.00
C16—C17—C18118.0 (5)C12—C13—H13B109.00
Cl2—C18—C19119.1 (5)H13A—C13—H13B108.00
C17—C18—C19122.3 (5)C15—C16—H16119.00
Cl2—C18—C17118.6 (4)C17—C16—H16119.00
C18—C19—C20119.5 (5)C16—C17—H17121.00
C15—C20—C19119.6 (5)C18—C17—H17121.00
C11—C21—C26120.2 (4)C18—C19—H19120.00
C22—C21—C26117.2 (5)C20—C19—H19120.00
C11—C21—C22122.4 (4)C15—C20—H20120.00
C21—C22—C23121.5 (5)C19—C20—H20120.00
C22—C23—C24119.5 (5)C21—C22—H22119.00
Cl1—C24—C23119.7 (4)C23—C22—H22119.00
Cl1—C24—C25119.3 (5)C22—C23—H23120.00
C23—C24—C25121.0 (5)C24—C23—H23120.00
C24—C25—C26119.6 (5)C24—C25—H25120.00
C21—C26—C25121.2 (5)C26—C25—H25120.00
C2—C1—H1120.00C21—C26—H26119.00
C6—C1—H1120.00C25—C26—H26119.00
C1—C2—H2120.00
C9—N1—C13—C1262.1 (4)C10—C11—C12—C14177.6 (4)
C9—N1—C8—C7−67.4 (5)C14—C12—C13—N1174.0 (3)
C13—N1—C8—C7173.0 (4)C11—C12—C14—O2−96.0 (5)
C8—N1—C13—C12−177.2 (3)C13—C12—C14—O226.5 (6)
C13—N1—C9—C10−58.3 (5)C13—C12—C14—C15−154.0 (4)
C8—N1—C9—C10−179.0 (4)C11—C12—C14—C1583.5 (5)
C2—C1—C6—C7−179.2 (6)C11—C12—C13—N1−62.5 (4)
C6—C1—C2—C3−1.8 (11)O2—C14—C15—C16−159.1 (4)
C2—C1—C6—C51.9 (9)O2—C14—C15—C2022.4 (6)
C1—C2—C3—C40.1 (12)C12—C14—C15—C1621.5 (6)
C2—C3—C4—C51.4 (11)C12—C14—C15—C20−157.1 (4)
C3—C4—C5—C6−1.2 (10)C14—C15—C16—C17−178.9 (4)
C4—C5—C6—C1−0.4 (9)C20—C15—C16—C17−0.4 (7)
C4—C5—C6—C7−179.3 (5)C14—C15—C20—C19178.4 (5)
C1—C6—C7—C8102.4 (6)C16—C15—C20—C19−0.2 (7)
C5—C6—C7—C8−78.7 (6)C15—C16—C17—C181.9 (8)
C6—C7—C8—N1−174.4 (4)C16—C17—C18—Cl2178.8 (4)
N1—C9—C10—C1156.4 (5)C16—C17—C18—C19−2.9 (9)
C9—C10—C11—C12−52.7 (5)Cl2—C18—C19—C20−179.3 (5)
C9—C10—C11—C21−174.6 (4)C17—C18—C19—C202.4 (10)
C9—C10—C11—O160.4 (5)C18—C19—C20—C15−0.8 (9)
C10—C11—C12—C1354.7 (4)C11—C21—C22—C23174.2 (4)
O1—C11—C12—C13−63.8 (4)C26—C21—C22—C23−1.5 (7)
O1—C11—C12—C1459.0 (4)C11—C21—C26—C25−175.3 (4)
C21—C11—C12—C14−61.3 (5)C22—C21—C26—C250.5 (7)
O1—C11—C21—C22168.5 (4)C21—C22—C23—C241.0 (8)
O1—C11—C21—C26−16.0 (6)C22—C23—C24—Cl1−179.4 (4)
C10—C11—C21—C2243.0 (6)C22—C23—C24—C250.5 (8)
C10—C11—C21—C26−141.5 (4)Cl1—C24—C25—C26178.5 (4)
C12—C11—C21—C22−75.4 (5)C23—C24—C25—C26−1.4 (8)
C12—C11—C21—C26100.1 (5)C24—C25—C26—C210.9 (8)
C21—C11—C12—C13175.9 (3)
Cg2 and Cg3 are the centroids of the C15–C20 and C21–C26 benzene rings, respectively.
D—H···AD—HH···AD···AD—H···A
O1—H1A···N1i0.822.112.879 (5)155
C13—H13B···O2ii0.972.543.372 (5)144
C2—H2···Cg2iii0.932.853.739 (9)159
C16—H16···Cg3iv0.932.853.646 (5)144
X-rayAM1X-rayAM1
Ring-2Ring-2Ring-3Ring-3
Ring-159.5 (3)69.4744.2 (3)89.21
Ring-224.4 (3)28.56
Table 1

Hydrogen-bond geometry (Å, °)

Cg2 and Cg3 are the centroids of the C15–C20 and C21–C26 benzene rings, respectively.

D—H⋯AD—HH⋯ADAD—H⋯A
O1—H1A⋯N1i0.822.112.879 (5)155
C13—H13B⋯O2ii0.972.543.372 (5)144
C2—H2⋯Cg2iii0.932.853.739 (9)159
C16—H16⋯Cg3iv0.932.853.646 (5)144

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

  17 in total

1.  Anti-inflammatory activity of bis(3-aryl-3-oxo-propyl)methylamine hydrochloride in rat.

Authors:  Halis Suleyman; Halise Inci Gul; Mustafa Gul; Mustafa Alkan; Fatma Gocer
Journal:  Biol Pharm Bull       Date:  2007-01       Impact factor: 2.233

2.  Evaluation of some Mannich bases of 1-aryl-1-ethanones and related ketones for anticonvulsant activities.

Authors:  J R Dimmock; S A Patil; K Shyam
Journal:  Pharmazie       Date:  1991-07       Impact factor: 1.267

3.  Synthesis and antifungal activity of 1-aryl-3-phenethylamino-1-propanone hydrochlorides and 3-aroyl-4-aryl-1-phenethyl-4-piperidinols.

Authors:  Ebru Mete; Canan Ozelgul; Cavit Kazaz; Dilsad Yurdakul; Fikrettin Sahin; Halise Inci Gul
Journal:  Arch Pharm (Weinheim)       Date:  2010-05       Impact factor: 3.751

4.  Biological activity of 1-aryl-3-phenethylamino-1-propanone hydrochlorides and 3-aroyl-4-aryl-1-phenethyl-4-piperidinols on PC-3 cells and DNA topoisomerase I enzyme.

Authors:  Ebru Mete; Halise Inci Gul; Pakize Canturk; Zeki Topcu; Bulbul Pandit; Mustafa Gul; Pui-Kai Li
Journal:  Z Naturforsch C J Biosci       Date:  2010 Nov-Dec

5.  Antifungal activity of some mono, bis and quaternary Mannich bases derived from acetophenone.

Authors:  H I Gul; T Ojanen; J Vepsalainen; M Gul; E Erciyas; O Hanninen
Journal:  Arzneimittelforschung       Date:  2001-01

6.  The effects of some Mannich bases on heat shock proteins HSC70 and GRP75, and thioredoxin and glutaredoxin levels in Jurkat cells.

Authors:  Mustafa Gul; Mustafa Atalay; Halise Inci Gul; Chitose Nakao; Jani Lappalainen; Osmo Hänninen
Journal:  Toxicol In Vitro       Date:  2005-04-22       Impact factor: 3.500

7.  In vitro antifungal activity of some Mannich bases of conjugated styryl ketones.

Authors:  E K Manavathu; S C Vashishtha; G J Alangaden; J R Dimmock
Journal:  Can J Microbiol       Date:  1998-01       Impact factor: 2.419

8.  Effect of some bis Mannich bases and corresponding piperidinols on DNA topoisomerase I.

Authors:  Pakize Canturk; Kaan Kucukoglu; Zeki Topcu; Mustafa Gul; Halise Inci Gul
Journal:  Arzneimittelforschung       Date:  2008

9.  Antimicrobial evaluation of some styryl ketone derivatives and related thiol adducts.

Authors:  E Erciyas; H I Erkaleli; G Cosar
Journal:  J Pharm Sci       Date:  1994-04       Impact factor: 3.534

10.  Structure validation in chemical crystallography.

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