Literature DB >> 23795015

Methyl (3S,10b'S)-5-chloro-9'-fluoro-1-methyl-2-oxo-5'-phenyl-10b'H-spiro-[indoline-3,1'-pyrazolo-[3,2-a]iso-quinoline]-2'-carboxyl-ate.

Piskala Subburaman Kannan1, Panneerselvam Yuvaraj, Boreddy Siva Rami Reddy, Rajamani Raja, Arunachalathevar Subbiahpandi.   

Abstract

In the title compound, C27H19ClFN3O3, the pyrazole ring has a twist conformation and the six-membered ring to which it is fused has a screw-boat conformation. The mean plane of the pyrazole ring is inclined to the 2-methyl-indoline ring by 85.03 (9) and by 28.17 (8)° to the mean plane of the iso-quinoline ring system. In the crystal, mol-ecules are linked by pairs of C-H⋯F hydrogen bonds, forming inversion dimers. These dimers are linked via C-H⋯O hydrogen bonds, forming a two-dimensional network lying parallel to (10-1).

Entities:  

Year:  2013        PMID: 23795015      PMCID: PMC3684913          DOI: 10.1107/S1600536813011549

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


Related literature

For the biological activity of pyrazoles, see: Huang et al. (1996 ▶); Li et al. (2005 ▶); Patel et al. (1990 ▶); Zhao et al. (2001 ▶). For the crystal structures of pyrazoles, see: Manivel et al. (2009 ▶); Khan et al. (2010a ▶,b ▶,c ▶). For the crystal structure of an isoquinazole, see: Hathwar et al. (2008 ▶). For the biological activity of fused iso­quinoline compounds, see: Aubry et al. (2004 ▶); Marco et al. (2005 ▶); Reddy et al. (1999 ▶). For related structures, see: Chen & Wu (2010 ▶); Ye et al. (2010 ▶); Yu et al. (2011a ▶,b ▶). For ring conformations, see: Cremer & Pople (1975 ▶).

Experimental

Crystal data

C27H19ClFN3O3 M = 487.90 Monoclinic, a = 15.1203 (3) Å b = 21.1088 (5) Å c = 15.6334 (3) Å β = 112.977 (1)° V = 4593.85 (17) Å3 Z = 8 Mo Kα radiation μ = 0.21 mm−1 T = 293 K 0.30 × 0.25 × 0.20 mm

Data collection

Bruker SMART APEXII area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2008 ▶) T min = 0.940, T max = 0.959 22581 measured reflections 5703 independent reflections 4241 reflections with I > 2σ(I) R int = 0.028

Refinement

R[F 2 > 2σ(F 2)] = 0.041 wR(F 2) = 0.123 S = 1.03 5703 reflections 318 parameters H-atom parameters constrained Δρmax = 0.25 e Å−3 Δρmin = −0.30 e Å−3 Data collection: APEX2 (Bruker, 2008 ▶); cell refinement: SAINT (Bruker, 2008 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012 ▶); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009 ▶). Click here for additional data file. Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S1600536813011549/su2581sup1.cif Click here for additional data file. Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536813011549/su2581Isup2.hkl Click here for additional data file. Supplementary material file. DOI: 10.1107/S1600536813011549/su2581Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C27H19ClFN3O3F(000) = 2016
Mr = 487.90Dx = 1.411 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2ycCell parameters from 5703 reflections
a = 15.1203 (3) Åθ = 1.8–28.3°
b = 21.1088 (5) ŵ = 0.21 mm1
c = 15.6334 (3) ÅT = 293 K
β = 112.977 (1)°Block, colourless
V = 4593.85 (17) Å30.30 × 0.25 × 0.20 mm
Z = 8
Bruker SMART APEXII area-detector diffractometer5703 independent reflections
Radiation source: fine-focus sealed tube4241 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.028
ω and φ scansθmax = 28.3°, θmin = 1.8°
Absorption correction: multi-scan (SADABS; Bruker, 2008)h = −19→20
Tmin = 0.940, Tmax = 0.959k = −26→28
22581 measured reflectionsl = −20→20
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.041Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.123H-atom parameters constrained
S = 1.03w = 1/[σ2(Fo2) + (0.0562P)2 + 2.5788P] where P = (Fo2 + 2Fc2)/3
5703 reflections(Δ/σ)max < 0.001
318 parametersΔρmax = 0.25 e Å3
0 restraintsΔρmin = −0.30 e Å3
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 > 2sigma(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
C1−0.17222 (12)0.36693 (8)0.05994 (11)0.0504 (4)
C2−0.13286 (15)0.42416 (9)0.09683 (14)0.0633 (5)
H2−0.16820.45260.11620.076*
C3−0.04086 (15)0.44005 (9)0.10548 (14)0.0640 (5)
H3−0.01370.47880.13060.077*
C40.00932 (12)0.39673 (7)0.07581 (11)0.0472 (4)
C5−0.03056 (11)0.33864 (7)0.03903 (9)0.0391 (3)
C6−0.12155 (11)0.32268 (7)0.03097 (10)0.0428 (3)
H6−0.14830.28370.00700.051*
C70.04406 (10)0.30004 (7)0.02057 (9)0.0374 (3)
C80.13007 (11)0.34625 (7)0.04972 (10)0.0432 (3)
C90.02260 (11)0.27304 (7)−0.07765 (10)0.0380 (3)
H90.08210.2753−0.08850.046*
C10−0.05599 (11)0.30133 (7)−0.16069 (10)0.0390 (3)
C11−0.06588 (13)0.36633 (8)−0.17251 (11)0.0499 (4)
H11−0.02800.3938−0.12610.060*
C12−0.13297 (14)0.38943 (8)−0.25436 (12)0.0560 (4)
C13−0.19128 (13)0.35141 (9)−0.32462 (12)0.0539 (4)
H13−0.23650.3687−0.37870.065*
C14−0.18089 (11)0.28690 (8)−0.31272 (11)0.0465 (4)
H14−0.21980.2603−0.35980.056*
C15−0.11317 (10)0.26033 (7)−0.23147 (10)0.0389 (3)
C16−0.09822 (11)0.19251 (7)−0.22125 (10)0.0419 (3)
H16−0.12880.1667−0.27260.050*
C17−0.04200 (11)0.16548 (7)−0.14060 (10)0.0396 (3)
C18−0.02320 (12)0.09669 (7)−0.12735 (11)0.0444 (3)
C190.06896 (14)0.07361 (8)−0.08048 (13)0.0564 (4)
H190.12010.1015−0.05440.068*
C200.08479 (18)0.00873 (10)−0.07247 (16)0.0731 (6)
H200.1468−0.0066−0.04130.088*
C210.0103 (2)−0.03290 (10)−0.10988 (17)0.0782 (7)
H210.0215−0.0763−0.10350.094*
C22−0.0807 (2)−0.01051 (10)−0.15659 (17)0.0778 (6)
H22−0.1313−0.0389−0.18240.093*
C23−0.09844 (15)0.05428 (9)−0.16584 (13)0.0605 (5)
H23−0.16060.0691−0.19780.073*
C240.06465 (10)0.23823 (7)0.07479 (10)0.0381 (3)
C250.10235 (11)0.23704 (8)0.17662 (10)0.0438 (3)
C260.14650 (18)0.17390 (11)0.31036 (13)0.0757 (6)
H26A0.21210.18790.33360.114*
H26B0.14420.13060.32810.114*
H26C0.11070.19980.33590.114*
C270.16737 (16)0.45421 (10)0.11482 (18)0.0786 (6)
H27A0.22590.44680.10600.118*
H27B0.18140.45880.17990.118*
H27C0.13750.49220.08280.118*
N10.00398 (10)0.20592 (6)−0.06590 (8)0.0428 (3)
N20.03649 (9)0.18827 (6)0.02346 (8)0.0406 (3)
N30.10284 (10)0.40106 (6)0.07812 (10)0.0519 (3)
O10.20707 (8)0.33595 (6)0.04558 (8)0.0542 (3)
O20.12795 (11)0.28419 (6)0.22236 (8)0.0679 (4)
O30.10528 (9)0.17891 (6)0.21056 (8)0.0561 (3)
Cl1−0.28762 (4)0.34823 (3)0.05025 (4)0.07239 (17)
F1−0.13982 (11)0.45332 (5)−0.26685 (8)0.0889 (4)
U11U22U33U12U13U23
C10.0494 (9)0.0546 (9)0.0479 (8)0.0061 (7)0.0196 (7)−0.0052 (7)
C20.0652 (12)0.0565 (11)0.0661 (11)0.0122 (9)0.0234 (9)−0.0172 (9)
C30.0694 (13)0.0430 (9)0.0703 (12)0.0002 (8)0.0171 (10)−0.0204 (8)
C40.0492 (9)0.0393 (8)0.0441 (8)−0.0023 (7)0.0085 (7)−0.0063 (6)
C50.0443 (8)0.0356 (7)0.0335 (7)0.0010 (6)0.0111 (6)−0.0034 (5)
C60.0457 (8)0.0400 (7)0.0421 (8)0.0000 (6)0.0164 (6)−0.0041 (6)
C70.0373 (7)0.0363 (7)0.0356 (7)−0.0032 (6)0.0108 (6)−0.0029 (5)
C80.0424 (8)0.0425 (8)0.0378 (7)−0.0061 (6)0.0080 (6)0.0005 (6)
C90.0397 (7)0.0380 (7)0.0359 (7)−0.0041 (6)0.0144 (6)−0.0034 (5)
C100.0412 (8)0.0420 (7)0.0356 (7)−0.0016 (6)0.0170 (6)−0.0004 (6)
C110.0630 (10)0.0433 (8)0.0394 (8)−0.0029 (7)0.0157 (7)−0.0006 (6)
C120.0731 (12)0.0450 (9)0.0482 (9)0.0071 (8)0.0220 (9)0.0073 (7)
C130.0524 (10)0.0635 (11)0.0414 (8)0.0107 (8)0.0134 (7)0.0082 (7)
C140.0382 (8)0.0600 (10)0.0391 (7)−0.0022 (7)0.0127 (6)−0.0030 (7)
C150.0366 (7)0.0461 (8)0.0363 (7)−0.0014 (6)0.0167 (6)−0.0021 (6)
C160.0413 (8)0.0462 (8)0.0387 (7)−0.0068 (6)0.0160 (6)−0.0104 (6)
C170.0424 (8)0.0391 (7)0.0399 (7)−0.0038 (6)0.0189 (6)−0.0083 (6)
C180.0566 (9)0.0383 (7)0.0425 (8)−0.0018 (7)0.0238 (7)−0.0074 (6)
C190.0611 (11)0.0460 (9)0.0634 (11)0.0044 (8)0.0256 (9)−0.0029 (8)
C200.0887 (15)0.0547 (11)0.0832 (14)0.0205 (11)0.0415 (13)0.0057 (10)
C210.118 (2)0.0417 (10)0.0919 (16)0.0034 (12)0.0594 (15)−0.0057 (10)
C220.1026 (18)0.0479 (11)0.0902 (16)−0.0224 (11)0.0456 (14)−0.0230 (10)
C230.0689 (12)0.0498 (10)0.0619 (11)−0.0118 (9)0.0247 (9)−0.0152 (8)
C240.0382 (7)0.0378 (7)0.0375 (7)0.0009 (6)0.0141 (6)−0.0009 (5)
C250.0419 (8)0.0494 (9)0.0379 (7)0.0009 (7)0.0133 (6)−0.0012 (6)
C260.0905 (16)0.0884 (15)0.0405 (9)0.0013 (12)0.0171 (10)0.0156 (9)
C270.0661 (13)0.0526 (11)0.0986 (17)−0.0201 (10)0.0120 (12)−0.0203 (11)
N10.0552 (8)0.0337 (6)0.0348 (6)−0.0014 (5)0.0122 (5)−0.0025 (5)
N20.0437 (7)0.0397 (6)0.0371 (6)0.0010 (5)0.0144 (5)−0.0013 (5)
N30.0491 (8)0.0403 (7)0.0564 (8)−0.0105 (6)0.0097 (6)−0.0086 (6)
O10.0412 (6)0.0587 (7)0.0583 (7)−0.0084 (5)0.0147 (5)−0.0007 (5)
O20.0896 (10)0.0578 (8)0.0428 (6)−0.0015 (7)0.0112 (6)−0.0112 (6)
O30.0682 (8)0.0573 (7)0.0379 (6)−0.0059 (6)0.0154 (5)0.0073 (5)
Cl10.0575 (3)0.0824 (4)0.0885 (4)0.0046 (2)0.0407 (3)−0.0143 (3)
F10.1338 (12)0.0469 (6)0.0633 (7)0.0117 (7)0.0138 (7)0.0139 (5)
C1—C21.370 (3)C15—C161.448 (2)
C1—C61.391 (2)C16—C171.342 (2)
C1—Cl11.7369 (18)C16—H160.9300
C2—C31.385 (3)C17—N11.3935 (18)
C2—H20.9300C17—C181.478 (2)
C3—C41.379 (2)C18—C191.385 (2)
C3—H30.9300C18—C231.387 (2)
C4—C51.388 (2)C19—C201.388 (3)
C4—N31.403 (2)C19—H190.9300
C5—C61.374 (2)C20—C211.367 (3)
C5—C71.508 (2)C20—H200.9300
C6—H60.9300C21—C221.366 (4)
C7—C241.521 (2)C21—H210.9300
C7—C81.545 (2)C22—C231.390 (3)
C7—C91.5489 (19)C22—H220.9300
C8—O11.2107 (19)C23—H230.9300
C8—N31.359 (2)C24—N21.2926 (18)
C9—N11.4701 (18)C24—C251.467 (2)
C9—C101.500 (2)C25—O21.1981 (19)
C9—H90.9800C25—O31.3308 (19)
C10—C111.385 (2)C26—O31.440 (2)
C10—C151.405 (2)C26—H26A0.9600
C11—C121.375 (2)C26—H26B0.9600
C11—H110.9300C26—H26C0.9600
C12—F11.361 (2)C27—N31.450 (2)
C12—C131.368 (3)C27—H27A0.9600
C13—C141.375 (2)C27—H27B0.9600
C13—H130.9300C27—H27C0.9600
C14—C151.400 (2)N1—N21.3401 (17)
C14—H140.9300
C2—C1—C6121.66 (17)C17—C16—C15122.56 (13)
C2—C1—Cl1119.58 (13)C17—C16—H16118.7
C6—C1—Cl1118.76 (13)C15—C16—H16118.7
C1—C2—C3120.61 (16)C16—C17—N1116.91 (13)
C1—C2—H2119.7C16—C17—C18124.46 (13)
C3—C2—H2119.7N1—C17—C18118.58 (13)
C4—C3—C2118.03 (16)C19—C18—C23119.20 (16)
C4—C3—H3121.0C19—C18—C17121.21 (15)
C2—C3—H3121.0C23—C18—C17119.53 (16)
C3—C4—C5121.20 (16)C18—C19—C20119.83 (19)
C3—C4—N3129.00 (15)C18—C19—H19120.1
C5—C4—N3109.79 (14)C20—C19—H19120.1
C6—C5—C4120.81 (14)C21—C20—C19120.8 (2)
C6—C5—C7130.34 (13)C21—C20—H20119.6
C4—C5—C7108.66 (13)C19—C20—H20119.6
C5—C6—C1117.69 (14)C22—C21—C20119.7 (2)
C5—C6—H6121.2C22—C21—H21120.1
C1—C6—H6121.2C20—C21—H21120.1
C5—C7—C24111.26 (11)C21—C22—C23120.6 (2)
C5—C7—C8102.06 (12)C21—C22—H22119.7
C24—C7—C8114.32 (12)C23—C22—H22119.7
C5—C7—C9120.38 (12)C18—C23—C22119.9 (2)
C24—C7—C998.91 (11)C18—C23—H23120.1
C8—C7—C9110.56 (12)C22—C23—H23120.1
O1—C8—N3126.20 (15)N2—C24—C25123.66 (13)
O1—C8—C7125.94 (14)N2—C24—C7114.07 (12)
N3—C8—C7107.83 (13)C25—C24—C7121.86 (12)
N1—C9—C10111.48 (12)O2—C25—O3125.12 (15)
N1—C9—C7101.95 (11)O2—C25—C24122.13 (15)
C10—C9—C7120.01 (12)O3—C25—C24112.75 (13)
N1—C9—H9107.6O3—C26—H26A109.5
C10—C9—H9107.6O3—C26—H26B109.5
C7—C9—H9107.6H26A—C26—H26B109.5
C11—C10—C15120.27 (14)O3—C26—H26C109.5
C11—C10—C9121.18 (13)H26A—C26—H26C109.5
C15—C10—C9118.20 (13)H26B—C26—H26C109.5
C12—C11—C10118.52 (15)N3—C27—H27A109.5
C12—C11—H11120.7N3—C27—H27B109.5
C10—C11—H11120.7H27A—C27—H27B109.5
F1—C12—C13118.49 (16)N3—C27—H27C109.5
F1—C12—C11118.17 (16)H27A—C27—H27C109.5
C13—C12—C11123.32 (16)H27B—C27—H27C109.5
C12—C13—C14117.94 (15)N2—N1—C17124.28 (12)
C12—C13—H13121.0N2—N1—C9112.83 (11)
C14—C13—H13121.0C17—N1—C9122.89 (12)
C13—C14—C15121.58 (15)C24—N2—N1108.56 (12)
C13—C14—H14119.2C8—N3—C4111.52 (13)
C15—C14—H14119.2C8—N3—C27123.02 (16)
C14—C15—C10118.36 (14)C4—N3—C27125.18 (16)
C14—C15—C16121.55 (14)C25—O3—C26115.63 (14)
C10—C15—C16120.02 (13)
C6—C1—C2—C30.7 (3)C14—C15—C16—C17−172.17 (14)
Cl1—C1—C2—C3179.82 (16)C10—C15—C16—C1710.8 (2)
C1—C2—C3—C40.1 (3)C15—C16—C17—N1−1.3 (2)
C2—C3—C4—C5−0.5 (3)C15—C16—C17—C18−178.81 (14)
C2—C3—C4—N3−179.09 (18)C16—C17—C18—C19134.10 (17)
C3—C4—C5—C60.1 (2)N1—C17—C18—C19−43.4 (2)
N3—C4—C5—C6178.94 (14)C16—C17—C18—C23−43.1 (2)
C3—C4—C5—C7−175.39 (16)N1—C17—C18—C23139.34 (16)
N3—C4—C5—C73.42 (17)C23—C18—C19—C20−0.1 (3)
C4—C5—C6—C10.7 (2)C17—C18—C19—C20−177.38 (16)
C7—C5—C6—C1175.11 (15)C18—C19—C20—C21−0.4 (3)
C2—C1—C6—C5−1.1 (2)C19—C20—C21—C220.7 (3)
Cl1—C1—C6—C5179.79 (12)C20—C21—C22—C23−0.5 (4)
C6—C5—C7—C24−54.3 (2)C19—C18—C23—C220.3 (3)
C4—C5—C7—C24120.63 (13)C17—C18—C23—C22177.63 (17)
C6—C5—C7—C8−176.67 (15)C21—C22—C23—C180.0 (3)
C4—C5—C7—C8−1.71 (15)C5—C7—C24—N2112.23 (14)
C6—C5—C7—C960.6 (2)C8—C7—C24—N2−132.82 (14)
C4—C5—C7—C9−124.49 (14)C9—C7—C24—N2−15.38 (15)
C5—C7—C8—O1−178.81 (15)C5—C7—C24—C25−60.72 (17)
C24—C7—C8—O160.97 (19)C8—C7—C24—C2554.23 (18)
C9—C7—C8—O1−49.6 (2)C9—C7—C24—C25171.67 (13)
C5—C7—C8—N3−0.59 (15)N2—C24—C25—O2179.97 (16)
C24—C7—C8—N3−120.82 (14)C7—C24—C25—O2−7.8 (2)
C9—C7—C8—N3128.63 (13)N2—C24—C25—O30.6 (2)
C5—C7—C9—N1−103.57 (14)C7—C24—C25—O3172.85 (13)
C24—C7—C9—N117.58 (13)C16—C17—N1—N2157.90 (14)
C8—C7—C9—N1137.85 (12)C18—C17—N1—N2−24.4 (2)
C5—C7—C9—C1020.10 (19)C16—C17—N1—C9−22.7 (2)
C24—C7—C9—C10141.26 (13)C18—C17—N1—C9155.05 (14)
C8—C7—C9—C10−98.48 (15)C10—C9—N1—N2−146.49 (12)
N1—C9—C10—C11164.24 (13)C7—C9—N1—N2−17.24 (16)
C7—C9—C10—C1145.3 (2)C10—C9—N1—C1734.01 (19)
N1—C9—C10—C15−22.57 (18)C7—C9—N1—C17163.25 (13)
C7—C9—C10—C15−141.53 (13)C25—C24—N2—N1178.35 (13)
C15—C10—C11—C120.4 (2)C7—C24—N2—N15.55 (17)
C9—C10—C11—C12173.48 (15)C17—N1—N2—C24−172.44 (14)
C10—C11—C12—F1−177.63 (15)C9—N1—N2—C248.07 (17)
C10—C11—C12—C130.6 (3)O1—C8—N3—C4−179.07 (15)
F1—C12—C13—C14177.34 (16)C7—C8—N3—C42.72 (18)
C11—C12—C13—C14−0.9 (3)O1—C8—N3—C27−4.9 (3)
C12—C13—C14—C150.1 (2)C7—C8—N3—C27176.88 (16)
C13—C14—C15—C100.9 (2)C3—C4—N3—C8174.74 (18)
C13—C14—C15—C16−176.19 (15)C5—C4—N3—C8−3.95 (19)
C11—C10—C15—C14−1.1 (2)C3—C4—N3—C270.7 (3)
C9—C10—C15—C14−174.39 (13)C5—C4—N3—C27−177.97 (17)
C11—C10—C15—C16175.96 (14)O2—C25—O3—C26−2.6 (3)
C9—C10—C15—C162.7 (2)C24—C25—O3—C26176.75 (16)
D—H···AD—HH···AD···AD—H···A
C27—H27B···F1i0.962.523.226 (3)130
C14—H14···O1ii0.932.503.402 (2)163
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯A D—HH⋯A DA D—H⋯A
C27—H27B⋯F1i 0.962.523.226 (3)130
C14—H14⋯O1ii 0.932.503.402 (2)163

Symmetry codes: (i) ; (ii) .

  13 in total

1.  Efficient generation of biologically active H-pyrazolo[5,1-a]isoquinolines via multicomponent reaction.

Authors:  Zhiyuan Chen; Jie Wu
Journal:  Org Lett       Date:  2010-11-05       Impact factor: 6.005

2.  An efficient approach to pyrazolo[5,1-a]isoquinolin-2-amines via a silver(I)-catalyzed three-component reaction of 2-alkynylbenzaldehyde, sulfonohydrazide, and nitrile.

Authors:  Xingxin Yu; Qin Yang; Honglei Lou; Yiyuan Peng; Jie Wu
Journal:  Org Biomol Chem       Date:  2011-08-03       Impact factor: 3.876

3.  Silver triflate-catalyzed three-component reaction of 2-alkynylbenzaldehyde, sulfonohydrazide, and alpha,beta-unsaturated carbonyl compound.

Authors:  Shengqing Ye; Xiaodi Yang; Jie Wu
Journal:  Chem Commun (Camb)       Date:  2010-06-28       Impact factor: 6.222

4.  Molecular determinants of topoisomerase I poisoning by lamellarins: comparison with camptothecin and structure-activity relationships.

Authors:  Esther Marco; William Laine; Christelle Tardy; Amélie Lansiaux; Masatomo Iwao; Fumito Ishibashi; Christian Bailly; Federico Gago
Journal:  J Med Chem       Date:  2005-06-02       Impact factor: 7.446

5.  3-Methyl-5-phenyl-1-(3-phenyl-isoquinolin-1-yl)-1H-pyrazole.

Authors:  F Nawaz Khan; P Manivel; Sriramakrishnaswamy Kone; Venkatesha R Hathwar; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-01-16

6.  1-(3,5-Dimethyl-1H-pyrazol-1-yl)-3-phenyl-isoquinoline.

Authors:  P Manivel; Venkatesha R Hathwar; T Maiyalagan; V Krishnakumar; F Nawaz Khan
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2009-07-08

7.  1-[3-(4-Chloro-phen-yl)isoquinolin-1-yl]-3,5-diphenyl-1H-pyrazole.

Authors:  F Nawaz Khan; P Manivel; V Krishnakumar; Venkatesha R Hathwar; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-01-16

8.  Mycobacterium tuberculosis DNA gyrase: interaction with quinolones and correlation with antimycobacterial drug activity.

Authors:  Alexandra Aubry; Xiao-Su Pan; L Mark Fisher; Vincent Jarlier; Emmanuelle Cambau
Journal:  Antimicrob Agents Chemother       Date:  2004-04       Impact factor: 5.191

9.  1-[3-(4-Chloro-phen-yl)isoquinolin-1-yl]-3,5-diethyl-1H-pyrazole.

Authors:  F Nawaz Khan; P Manivel; K Prabakaran; Venkatesha R Hathwar; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-01-16

10.  Structure validation in chemical crystallography.

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