Literature DB >> 27006787

Crystal structure of 3-{5-[3-(4-fluoro-phen-yl)-1-isopropyl-1H-indol-2-yl]-1H-pyrazol-1-yl}indolin-2-one ethanol monosolvate.

Md Lutfor Rahman1, Ajaykumar D Kulkarni2, Mashitah Mohd Yusoff1, Huey Chong Kwong3, Ching Kheng Quah4.   

Abstract

The title indolin-2-one compound, C28H23FN4O·C2H6O, crystallizes as a 1:1 ethanol solvate. The ethanol mol-ecule is disordered over two positions with refined site occupancies of 0.560 (14) and 0.440 (14). The pyrazole ring makes dihedral angles of 84.16 (10) and 85.33 (9)° with the indolin-2-one and indole rings, respectively, whereas the dihedral angle between indolin-2-one and indole rings is 57.30 (7)°. In the crystal, the components are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming an inversion mol-ecule-solvate 2:2 dimer with R 4 (4)(12) ring motifs. The crystal structure is consolidated by π-π inter-action between pairs of inversion-related indolin-2-one rings [inter-planar spacing = 3.599 (2) Å].

Entities:  

Keywords:  C—H⋯π inter­actions; N—H⋯O and O—H⋯O hydrogen bonds; Schiff base; crystal structure; indol-2-one; indole; pyrazole

Year:  2016        PMID: 27006787      PMCID: PMC4778816          DOI: 10.1107/S2056989016001614

Source DB:  PubMed          Journal:  Acta Crystallogr E Crystallogr Commun


Chemical context

Heterocyclic compounds containing the pyrazolone nucleus, indole, and its derivatives play an important role in biological activities. The synthesis and biological activity of some new indole derivatives containing a pyrazole moiety have been reported (Raju et al., 2013 ▸). Pyrazole and its analogues have been found to exhibit industrial and biologically active applications (el-Kashef et al., 2000 ▸; Taha et al., 2001 ▸; Brzozowski & Sączewski,, 2002 ▸). Consequently, synthesis of indole derivatives has been a major topic in organic and medicinal chemistry over the past few decades. Nitro­gen-containing heterocycles are universal systems in nature and are consequently considered as privileged structures in drug discovery (Raju et al., 2013 ▸). A literature survey shows that some pyrazoles plays an essential role in biologically active compounds and also in medicinal chemistry (Penning et al., 2006 ▸), exhibiting phenomena such as anti­bacterial (Pevarello et al., 2006 ▸), anti­fungal, anti­viral (Meghashyam et al., 2011 ▸), anti-oxidant (Singarave & Sarkkarai, 2011 ▸), anti-inflammatory (Mana et al., 2010 ▸), and anti­cancer (Pathak et al., 2010 ▸) effects etc. Certain indole derivatives have also been reported to exhibit wide-spectrum activities such as anti­parkinsonian and anti­convulsant effects (Siddiqui et al., 2008 ▸; Archana et al., 2002 ▸). In addition, pyrazoles have played a crucial role in the development of theory in heterocyclic chemistry, and are also used extensively as useful synthons in organic synthesis. Isatin, an endogenous indole and its derivatives have been shown to exhibit a wide range of biological activities (Daisley & Shah, 1984 ▸; Pandeya et al., 1999 ▸). In addition, the biological significance of fluvastatin, an indole derivative, is well established (Repič et al., 2001 ▸). As part of our studies in this area, we now present a pyrazole as a central unit linked with 3-[3-(4-fluoro­phen­yl)-1-iso­propyl­indolin-2-yl]acryl­aldehyde and 3-hydrazonoindolin-2-one, synthesized according to a procedure reported in the literature (Elkanzi, 2013 ▸).

Structural commentary

The asymmetric unit of the title compound (Fig. 1 ▸) comprises of a 3-{5-[3-(4-fluoro­phen­yl)-1-isopropyl-1H-indol-2-yl]-1H-pyrazol-1-yl}indolin-2-one and an ethanol solvent mol­ecule. The pyrrolidin-2-one ring has an essentially planar conformation, with maximum deviation from the mean plane of the ring of 0.04 (2) Å at C25. The pyrazole ring is almost planar [maximum deviation of ±0.006 (2) Å for atoms N2 and C15], as are the fluoro­phenyl [maximum deviation of ± 0.011 (2) Å for atoms C10 and C13] and indole [maximum deviation of ± 0.0019 (2) Å for atom C14] rings. The connecting pyrazole ring is almost normal to both indol-2-one and indole rings with dihedral angles of 84.16 (10)° and 85.33 (9)°, respectively, while the indole and fluoro­phenyl rings are tilted toward one another by 40.74 (8)°. The bond lengths and angles in the fluoro­phenyl-indole moiety of the title mol­ecule are comparable to those of previously reported compounds (Kulkarni et al., 2015a ▸,b ▸).
Figure 1

The mol­ecular structure of the title compound. Displacement ellipsoids are drawn at the 30% probability level. Only the major component of the disordered ethanol solvent mol­ecule is shown.

Supra­molecular features

In the crystal, the main mol­ecules and ethanol solvate mol­ecules are linked via pairs of N4—H1N1⋯O2 and O2—H1O2⋯O1 hydrogen bonds (Table 1 ▸), forming an inversion-related mol­ecule-solvate 2:2 dimer with an (12) ring motif (Fig. 2 ▸) (Bernstein et al., 1995 ▸). The crystal structure also features π–π inter­actions between pairs of inversion-related (1 − x, 1 − y, 1 − z) indolin-2-one rings with an inter­planar spacing of 3.599 (2) Å.
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯A D—HH⋯A DA D—H⋯A
N4—H1N1⋯O2i 0.85 (2)1.92 (3)2.750 (19)165 (2)
O2—H1O2⋯O1ii 0.98 (9)1.67 (9)2.650 (2)172 (11)

Symmetry codes: (i) ; (ii) .

Figure 2

The crystal packing of the title compound viewed along the b axis. The N—H⋯O and O—H⋯O hydrogen bonds are shown as dashed lines. H atoms not involved in hydrogen bonding have been omitted for clarity.

Database survey

A search of the Cambridge Structural Database (CSD, Version 35.6, last update May 2015; Groom & Allen, 2014 ▸) using 4-(λ1-azan­yl)-5-methyl-2,4-di­hydro-3H-1,2,4-triazole-3-thione as the main skeleton, revealed the presence of 57 structures containing the triazole-thione moiety but only four structures containing the fluvastatin nucleus. These include 5-[3-(4-fluoro­phen­yl)-1-isopropyl-1H-indol-2-yl]-1-(X)penta-2,4-diene-1-one, where X = 4-nitro­phenyl (NUHNAH), 2-hy­droxy­phenyl (NUHNEL), 4-meth­oxy­phenyl (NUHNIP) and 4-chloro­phenyl (NUHNOV) (Kalalbandi et al., 2015 ▸). In these four compounds, the 4-fluoro­phenyl ring of the fluvastatin nucleus is inclined to the indole ring by dihedral angles ranging from ca 46.66 to 68.59°, compared to 40.74 (8)° for the title compound.

Synthesis and crystallization

The title compound was synthesized by refluxing a hot methano­lic solution (30 mL) of 3-(3-(4-fluoro­phen­yl)-1-iso­propyl­indolin-2-yl)acryl­aldehyde (0.01mol) and a hot methano­lic solution (30 mL) of 3-hydrazonoeindolin-2-one (0.01mol) for 5 h with addition of 4 drops of conc. hydro­chloric acid (Ajaykumar et al., 2009 ▸). The product obtained after evaporation of the solvent was filtered, washed with cold MeOH and recrystallized from ETOH. The single crystal used for the crystal analysis was grown by the slow evaporation of a solution in chloro­form–ethanol (1:1). Yield (m.p.): 78% (551 K). 1HNMR (CDCl3) in p.p.m.: 7.94 (s, 1H, NH, indole), 7.76 (d, 1H, Ar-H), 7.72 (m, 2H, Ar–H), 7.37 (m, 2H, Ar-H), 7.32 (t, 1H, Ar-H), 7.20 (t, 1H, Ar-H), 7.13 (d, 1H, Ar-H), 7.10 (d, 2H, Ar-H), 6.77 (t, 1H, Ar-H), 6.70 (d, 1H, Ar-H), 6.67 (d, 1H, pyrazole), 5.48 (d, 2H, pyrazole), 5.37 (s, 1H, indole), 4.73 (m, 1H, isoprop­yl), 1.73 (m, 6H, meth­yl). IR (KBr) cm−1: 3250 (N—H, indole), 2827 (–CH3), 1720 (C=O, ketone), 1618 (C=C, Ar), 1520 (C—C, Ar), 1469 (–CH3), 1221 (C—N).

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2 ▸. The ethanol mol­ecule is disordered over two positions with refined site occupancies of 0.560 (14): 0.440 (14). The disorder components were restrained to have similar geometry. The N-bound H atom was located in a difference Fourier map and freely refined. The C-bound H atoms were positioned geometrically (C—H = 0.93–0.98 Å) and refined using a riding model with U iso(H) = 1.5U eq(C-meth­yl) and 1.2U eq(C) for other H atoms.
Table 2

Experimental details

Crystal data
Chemical formulaC28H23FN4O·C2H6O
M r 496.57
Crystal system, space groupTriclinic, P
Temperature (K)297
a, b, c (Å)9.9754 (8), 10.2139 (8), 14.0294 (11)
α, β, γ (°)75.7386 (15), 71.0062 (14), 83.1264 (14)
V3)1308.73 (18)
Z 2
Radiation typeMo Kα
μ (mm−1)0.09
Crystal size (mm)0.42 × 0.22 × 0.22
 
Data collection
DiffractometerBruker APEXII DUO CCD area detector
Absorption correctionMulti-scan (SADABS; Bruker, 2009)
T min, T max 0.884, 0.955
No. of measured, independent and observed [I > 2σ(I)] reflections32072, 5778, 3733
R int 0.032
(sin θ/λ)max−1)0.650
 
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S 0.057, 0.130, 1.21
No. of reflections5778
No. of parameters375
No. of restraints3
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å−3)0.15, −0.19

Computer programs: APEX2 (Bruker, 2009 ▸), SAINT (Bruker, 2009 ▸), SHELXS97 (Sheldrick, 2008 ▸), SHELXL2013 (Sheldrick, 2015 ▸), Mercury (Macrae et al., 2008 ▸) and PLATON (Spek, 2009 ▸).

Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S2056989016001614/pk2572sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989016001614/pk2572Isup2.hkl Click here for additional data file. Supporting information file. DOI: 10.1107/S2056989016001614/pk2572Isup3.cml CCDC reference: 1450044 Additional supporting information: crystallographic information; 3D view; checkCIF report
C28H23FN4O·C2H6OZ = 2
Mr = 496.57F(000) = 524
Triclinic, P1Dx = 1.260 Mg m3
a = 9.9754 (8) ÅMo Kα radiation, λ = 0.71073 Å
b = 10.2139 (8) ÅCell parameters from 9792 reflections
c = 14.0294 (11) Åθ = 2.3–27.6°
α = 75.7386 (15)°µ = 0.09 mm1
β = 71.0062 (14)°T = 297 K
γ = 83.1264 (14)°Block, colourless
V = 1308.73 (18) Å30.42 × 0.22 × 0.22 mm
Bruker APEXII DUO CCD area-detector diffractometer5778 independent reflections
Radiation source: fine-focus sealed tube3733 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.032
φ and ω scansθmax = 27.5°, θmin = 1.6°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −12→12
Tmin = 0.884, Tmax = 0.955k = −13→13
32072 measured reflectionsl = −18→18
Refinement on F23 restraints
Least-squares matrix: fullHydrogen site location: mixed
R[F2 > 2σ(F2)] = 0.057H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.130w = 1/[σ2(Fo2) + (0.0361P)2 + 0.3328P] where P = (Fo2 + 2Fc2)/3
S = 1.21(Δ/σ)max < 0.001
5778 reflectionsΔρmax = 0.15 e Å3
375 parametersΔρmin = −0.19 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.
xyzUiso*/UeqOcc. (<1)
F10.95103 (15)0.08376 (14)0.14670 (13)0.0965 (5)
N10.37863 (16)0.67252 (16)0.16316 (12)0.0496 (4)
H1N10.596 (2)0.795 (2)0.5053 (16)0.059*
N20.66480 (15)0.68580 (15)0.23475 (11)0.0477 (4)
N30.77904 (17)0.76065 (17)0.21225 (13)0.0571 (4)
N40.5929 (2)0.7342 (2)0.47443 (14)0.0662 (5)
O10.47523 (17)0.85895 (18)0.36321 (13)0.0801 (5)
C10.28456 (19)0.5768 (2)0.17372 (14)0.0500 (5)
C20.1405 (2)0.5909 (3)0.18238 (16)0.0638 (6)
H2A0.09240.67490.18060.077*
C30.0725 (2)0.4771 (3)0.19350 (18)0.0732 (7)
H3A−0.02360.48410.19960.088*
C40.1431 (2)0.3511 (3)0.19594 (18)0.0706 (6)
H4A0.09350.27560.20380.085*
C50.2849 (2)0.3364 (2)0.18689 (16)0.0587 (5)
H5A0.33160.25180.18820.070*
C60.35815 (19)0.45041 (19)0.17569 (13)0.0468 (4)
C70.50280 (18)0.47104 (18)0.16459 (13)0.0436 (4)
C80.62068 (19)0.36889 (18)0.16080 (14)0.0452 (4)
C90.6011 (2)0.2407 (2)0.22518 (16)0.0565 (5)
H9A0.51220.21970.27250.068*
C100.7109 (2)0.1441 (2)0.22023 (19)0.0671 (6)
H10A0.69640.05790.26240.081*
C110.8413 (2)0.1780 (2)0.15208 (19)0.0640 (6)
C120.8657 (2)0.3021 (2)0.08737 (18)0.0613 (5)
H12A0.95560.32250.04160.074*
C130.75482 (19)0.3966 (2)0.09108 (16)0.0522 (5)
H13A0.76990.48090.04600.063*
C140.51043 (18)0.60667 (18)0.15671 (13)0.0432 (4)
C150.63180 (18)0.68060 (17)0.14957 (14)0.0428 (4)
C160.7318 (2)0.75366 (19)0.06796 (15)0.0547 (5)
H16A0.73980.7686−0.00180.066*
C170.8187 (2)0.8008 (2)0.11080 (16)0.0549 (5)
H17A0.89570.85430.07250.066*
C180.5866 (2)0.6370 (2)0.34278 (14)0.0502 (5)
H18A0.50280.59040.34900.060*
C190.6725 (2)0.5487 (2)0.40595 (14)0.0523 (5)
C200.7444 (2)0.4273 (2)0.39863 (18)0.0666 (6)
H20A0.74230.38230.34900.080*
C210.8208 (3)0.3727 (3)0.4674 (2)0.0833 (7)
H21A0.87150.29060.46320.100*
C220.8225 (3)0.4381 (3)0.5413 (2)0.0877 (8)
H22A0.87460.39980.58630.105*
C230.7486 (3)0.5592 (3)0.55029 (17)0.0770 (7)
H23A0.74890.60300.60100.092*
C240.6745 (2)0.6130 (2)0.48173 (15)0.0583 (5)
C250.5419 (2)0.7586 (2)0.39376 (17)0.0593 (5)
C260.3559 (2)0.8204 (2)0.14204 (17)0.0607 (5)
H26A0.44300.85760.14010.073*
C270.2370 (3)0.8682 (3)0.2271 (2)0.0910 (8)
H27A0.23500.96510.21450.137*
H27B0.25260.82990.29250.137*
H27C0.14800.84010.22810.137*
C280.3389 (3)0.8721 (3)0.0352 (2)0.0960 (9)
H28A0.33470.96910.01900.144*
H28B0.25290.84000.03410.144*
H28C0.41830.8397−0.01490.144*
O20.3483 (14)0.060 (2)0.4525 (12)0.115 (5)0.560 (14)
H1O20.401 (10)−0.016 (8)0.423 (8)0.138*0.560 (14)
C290.1962 (7)0.0616 (11)0.4632 (7)0.088 (2)0.560 (14)
H29A0.16540.14800.42740.106*0.560 (14)
H29B0.1769−0.00960.43530.106*0.560 (14)
C300.1250 (16)0.039 (2)0.5740 (8)0.186 (9)0.560 (14)
H30A0.02430.04000.58710.279*0.560 (14)
H30B0.14680.11000.60010.279*0.560 (14)
H30C0.1569−0.04640.60780.279*0.560 (14)
O2A0.3340 (15)0.080 (2)0.4359 (12)0.077 (3)0.440 (14)
H2O20.384 (13)0.024 (9)0.415 (9)0.092*0.440 (14)
C29A0.2173 (11)−0.0028 (13)0.5152 (12)0.101 (4)0.440 (14)
H29C0.1718−0.04910.48220.121*0.440 (14)
H29D0.2550−0.06990.56320.121*0.440 (14)
C30A0.1171 (11)0.089 (2)0.5688 (13)0.128 (6)0.440 (14)
H30D0.03190.04250.61020.192*0.440 (14)
H30E0.09530.16440.51940.192*0.440 (14)
H30F0.15730.11950.61240.192*0.440 (14)
U11U22U33U12U13U23
F10.0752 (9)0.0731 (9)0.1446 (14)0.0267 (7)−0.0456 (9)−0.0283 (9)
N10.0461 (9)0.0524 (9)0.0552 (9)0.0063 (8)−0.0226 (7)−0.0154 (7)
N20.0442 (9)0.0535 (9)0.0478 (9)−0.0089 (7)−0.0156 (7)−0.0103 (7)
N30.0507 (10)0.0629 (11)0.0610 (11)−0.0173 (8)−0.0171 (8)−0.0129 (8)
N40.0666 (12)0.0836 (14)0.0578 (11)−0.0107 (10)−0.0164 (9)−0.0328 (10)
O10.0743 (11)0.0801 (11)0.0922 (12)0.0141 (9)−0.0286 (9)−0.0347 (10)
C10.0439 (11)0.0653 (12)0.0441 (10)0.0005 (9)−0.0173 (8)−0.0139 (9)
C20.0469 (12)0.0835 (16)0.0632 (13)0.0037 (11)−0.0217 (10)−0.0167 (11)
C30.0428 (12)0.110 (2)0.0685 (15)−0.0097 (13)−0.0182 (11)−0.0177 (14)
C40.0574 (14)0.0905 (18)0.0691 (15)−0.0241 (13)−0.0209 (11)−0.0151 (12)
C50.0551 (12)0.0682 (13)0.0579 (12)−0.0115 (10)−0.0187 (10)−0.0172 (10)
C60.0435 (10)0.0590 (12)0.0415 (10)−0.0048 (9)−0.0152 (8)−0.0136 (8)
C70.0439 (10)0.0496 (10)0.0415 (10)−0.0010 (8)−0.0165 (8)−0.0139 (8)
C80.0456 (10)0.0481 (11)0.0489 (11)−0.0003 (8)−0.0200 (8)−0.0168 (9)
C90.0552 (12)0.0539 (12)0.0599 (12)−0.0033 (10)−0.0186 (10)−0.0103 (10)
C100.0733 (15)0.0502 (12)0.0804 (16)0.0023 (11)−0.0345 (13)−0.0066 (11)
C110.0553 (13)0.0572 (13)0.0909 (17)0.0167 (11)−0.0365 (12)−0.0273 (12)
C120.0465 (12)0.0613 (13)0.0792 (15)0.0015 (10)−0.0182 (10)−0.0244 (12)
C130.0480 (11)0.0476 (11)0.0623 (12)−0.0003 (9)−0.0169 (9)−0.0156 (9)
C140.0428 (10)0.0486 (10)0.0417 (10)0.0023 (8)−0.0172 (8)−0.0126 (8)
C150.0440 (10)0.0412 (10)0.0469 (10)0.0044 (8)−0.0189 (8)−0.0131 (8)
C160.0605 (12)0.0545 (12)0.0474 (11)−0.0048 (10)−0.0153 (10)−0.0085 (9)
C170.0509 (11)0.0497 (11)0.0587 (13)−0.0071 (9)−0.0102 (10)−0.0091 (9)
C180.0468 (11)0.0604 (12)0.0463 (11)−0.0129 (9)−0.0132 (9)−0.0133 (9)
C190.0498 (11)0.0611 (12)0.0459 (11)−0.0156 (10)−0.0143 (9)−0.0056 (9)
C200.0711 (14)0.0623 (14)0.0647 (14)−0.0098 (12)−0.0221 (12)−0.0062 (11)
C210.0802 (17)0.0738 (16)0.0876 (19)−0.0054 (13)−0.0323 (15)0.0069 (14)
C220.0842 (18)0.106 (2)0.0709 (17)−0.0246 (17)−0.0405 (14)0.0165 (16)
C230.0804 (17)0.104 (2)0.0514 (13)−0.0295 (15)−0.0261 (12)−0.0049 (13)
C240.0553 (12)0.0755 (15)0.0457 (11)−0.0182 (11)−0.0141 (9)−0.0107 (10)
C250.0486 (12)0.0704 (14)0.0597 (13)−0.0066 (11)−0.0112 (10)−0.0215 (11)
C260.0644 (13)0.0514 (12)0.0739 (14)0.0118 (10)−0.0336 (11)−0.0173 (10)
C270.0857 (18)0.0839 (18)0.113 (2)0.0301 (15)−0.0360 (16)−0.0465 (16)
C280.133 (2)0.0728 (17)0.090 (2)0.0009 (16)−0.0625 (19)0.0015 (14)
O20.070 (5)0.111 (9)0.192 (12)0.006 (4)−0.033 (6)−0.099 (9)
C290.081 (5)0.095 (5)0.094 (5)−0.007 (3)−0.031 (4)−0.025 (4)
C300.175 (13)0.31 (2)0.089 (7)−0.110 (12)−0.025 (7)−0.046 (9)
O2A0.064 (7)0.082 (5)0.085 (4)−0.007 (5)−0.006 (4)−0.041 (3)
C29A0.089 (7)0.106 (8)0.109 (9)−0.013 (5)−0.018 (6)−0.038 (7)
C30A0.041 (5)0.148 (9)0.186 (14)−0.015 (5)0.006 (6)−0.071 (8)
F1—C111.364 (2)C17—H17A0.9300
N1—C11.384 (2)C18—C191.500 (3)
N1—C141.389 (2)C18—C251.532 (3)
N1—C261.470 (2)C18—H18A0.9800
N2—C151.353 (2)C19—C201.365 (3)
N2—N31.356 (2)C19—C241.386 (3)
N2—C181.451 (2)C20—C211.391 (3)
N3—C171.317 (2)C20—H20A0.9300
N4—C251.344 (3)C21—C221.370 (4)
N4—C241.399 (3)C21—H21A0.9300
N4—H1N10.85 (2)C22—C231.374 (4)
O1—C251.218 (3)C22—H22A0.9300
C1—C21.395 (3)C23—C241.371 (3)
C1—C61.406 (3)C23—H23A0.9300
C2—C31.367 (3)C26—C271.515 (3)
C2—H2A0.9300C26—C281.519 (3)
C3—C41.389 (3)C26—H26A0.9800
C3—H3A0.9300C27—H27A0.9600
C4—C51.371 (3)C27—H27B0.9600
C4—H4A0.9300C27—H27C0.9600
C5—C61.398 (3)C28—H28A0.9600
C5—H5A0.9300C28—H28B0.9600
C6—C71.436 (2)C28—H28C0.9600
C7—C141.372 (2)O2—C291.474 (13)
C7—C81.472 (2)O2—H1O20.99 (9)
C8—C131.389 (3)C29—C301.456 (12)
C8—C91.390 (3)C29—H29A0.9700
C9—C101.380 (3)C29—H29B0.9700
C9—H9A0.9300C30—H30A0.9600
C10—C111.364 (3)C30—H30B0.9600
C10—H10A0.9300C30—H30C0.9600
C11—C121.361 (3)O2A—C29A1.497 (13)
C12—C131.375 (3)O2A—H2O20.76 (10)
C12—H12A0.9300C29A—C30A1.438 (14)
C13—H13A0.9300C29A—H29C0.9700
C14—C151.466 (2)C29A—H29D0.9700
C15—C161.370 (3)C30A—H30D0.9600
C16—C171.388 (3)C30A—H30E0.9600
C16—H16A0.9300C30A—H30F0.9600
C1—N1—C14107.55 (15)C25—C18—H18A110.2
C1—N1—C26127.68 (16)C20—C19—C24120.1 (2)
C14—N1—C26123.80 (16)C20—C19—C18131.91 (19)
C15—N2—N3112.64 (15)C24—C19—C18107.96 (18)
C15—N2—C18129.00 (15)C19—C20—C21118.2 (2)
N3—N2—C18117.92 (15)C19—C20—H20A120.9
C17—N3—N2104.16 (15)C21—C20—H20A120.9
C25—N4—C24111.97 (18)C22—C21—C20120.9 (3)
C25—N4—H1N1122.7 (14)C22—C21—H21A119.5
C24—N4—H1N1122.9 (14)C20—C21—H21A119.5
N1—C1—C2130.23 (19)C21—C22—C23121.3 (2)
N1—C1—C6108.26 (15)C21—C22—H22A119.4
C2—C1—C6121.50 (19)C23—C22—H22A119.4
C3—C2—C1117.7 (2)C24—C23—C22117.5 (2)
C3—C2—H2A121.2C24—C23—H23A121.3
C1—C2—H2A121.2C22—C23—H23A121.3
C2—C3—C4121.7 (2)C23—C24—C19122.0 (2)
C2—C3—H3A119.1C23—C24—N4128.3 (2)
C4—C3—H3A119.1C19—C24—N4109.66 (18)
C5—C4—C3121.0 (2)O1—C25—N4127.7 (2)
C5—C4—H4A119.5O1—C25—C18124.8 (2)
C3—C4—H4A119.5N4—C25—C18107.5 (2)
C4—C5—C6119.0 (2)N1—C26—C27112.74 (19)
C4—C5—H5A120.5N1—C26—C28110.06 (18)
C6—C5—H5A120.5C27—C26—C28113.7 (2)
C5—C6—C1119.09 (17)N1—C26—H26A106.6
C5—C6—C7133.46 (18)C27—C26—H26A106.6
C1—C6—C7107.45 (16)C28—C26—H26A106.6
C14—C7—C6106.08 (15)C26—C27—H27A109.5
C14—C7—C8126.39 (16)C26—C27—H27B109.5
C6—C7—C8127.53 (16)H27A—C27—H27B109.5
C13—C8—C9117.72 (17)C26—C27—H27C109.5
C13—C8—C7121.00 (17)H27A—C27—H27C109.5
C9—C8—C7121.27 (17)H27B—C27—H27C109.5
C10—C9—C8121.3 (2)C26—C28—H28A109.5
C10—C9—H9A119.4C26—C28—H28B109.5
C8—C9—H9A119.4H28A—C28—H28B109.5
C11—C10—C9118.5 (2)C26—C28—H28C109.5
C11—C10—H10A120.8H28A—C28—H28C109.5
C9—C10—H10A120.8H28B—C28—H28C109.5
C12—C11—F1118.5 (2)C29—O2—H1O2111 (6)
C12—C11—C10122.39 (19)C30—C29—O2104.6 (11)
F1—C11—C10119.1 (2)C30—C29—H29A110.8
C11—C12—C13118.7 (2)O2—C29—H29A110.8
C11—C12—H12A120.7C30—C29—H29B110.8
C13—C12—H12A120.7O2—C29—H29B110.8
C12—C13—C8121.40 (19)H29A—C29—H29B108.9
C12—C13—H13A119.3C29—C30—H30A109.5
C8—C13—H13A119.3C29—C30—H30B109.5
C7—C14—N1110.64 (16)H30A—C30—H30B109.5
C7—C14—C15128.66 (16)C29—C30—H30C109.5
N1—C14—C15120.57 (15)H30A—C30—H30C109.5
N2—C15—C16105.47 (16)H30B—C30—H30C109.5
N2—C15—C14121.55 (16)C29A—O2A—H2O299 (10)
C16—C15—C14132.98 (17)C30A—C29A—O2A107.1 (13)
C15—C16—C17105.79 (18)C30A—C29A—H29C110.3
C15—C16—H16A127.1O2A—C29A—H29C110.3
C17—C16—H16A127.1C30A—C29A—H29D110.3
N3—C17—C16111.93 (18)O2A—C29A—H29D110.3
N3—C17—H17A124.0H29C—C29A—H29D108.5
C16—C17—H17A124.0C29A—C30A—H30D109.5
N2—C18—C19114.71 (15)C29A—C30A—H30E109.5
N2—C18—C25108.29 (16)H30D—C30A—H30E109.5
C19—C18—C25102.81 (16)C29A—C30A—H30F109.5
N2—C18—H18A110.2H30D—C30A—H30F109.5
C19—C18—H18A110.2H30E—C30A—H30F109.5
C15—N2—N3—C17−0.9 (2)N3—N2—C15—C161.2 (2)
C18—N2—N3—C17−174.05 (16)C18—N2—C15—C16173.39 (17)
C14—N1—C1—C2−179.41 (19)N3—N2—C15—C14−179.04 (15)
C26—N1—C1—C2−10.4 (3)C18—N2—C15—C14−6.9 (3)
C14—N1—C1—C61.1 (2)C7—C14—C15—N2−82.5 (2)
C26—N1—C1—C6170.05 (17)N1—C14—C15—N293.0 (2)
N1—C1—C2—C3−179.1 (2)C7—C14—C15—C1697.1 (3)
C6—C1—C2—C30.4 (3)N1—C14—C15—C16−87.3 (2)
C1—C2—C3—C4−0.2 (3)N2—C15—C16—C17−1.0 (2)
C2—C3—C4—C5−0.2 (4)C14—C15—C16—C17179.33 (18)
C3—C4—C5—C60.4 (3)N2—N3—C17—C160.3 (2)
C4—C5—C6—C1−0.2 (3)C15—C16—C17—N30.5 (2)
C4—C5—C6—C7180.0 (2)C15—N2—C18—C19129.10 (19)
N1—C1—C6—C5179.39 (16)N3—N2—C18—C19−59.1 (2)
C2—C1—C6—C5−0.2 (3)C15—N2—C18—C25−116.7 (2)
N1—C1—C6—C7−0.7 (2)N3—N2—C18—C2555.1 (2)
C2—C1—C6—C7179.69 (17)N2—C18—C19—C20−61.1 (3)
C5—C6—C7—C14180.0 (2)C25—C18—C19—C20−178.4 (2)
C1—C6—C7—C140.11 (19)N2—C18—C19—C24117.45 (18)
C5—C6—C7—C80.8 (3)C25—C18—C19—C240.1 (2)
C1—C6—C7—C8−179.11 (17)C24—C19—C20—C21−1.3 (3)
C14—C7—C8—C13−40.8 (3)C18—C19—C20—C21177.1 (2)
C6—C7—C8—C13138.22 (19)C19—C20—C21—C220.8 (4)
C14—C7—C8—C9140.51 (19)C20—C21—C22—C230.2 (4)
C6—C7—C8—C9−40.4 (3)C21—C22—C23—C24−0.8 (4)
C13—C8—C9—C100.0 (3)C22—C23—C24—C190.3 (3)
C7—C8—C9—C10178.73 (18)C22—C23—C24—N4−179.4 (2)
C8—C9—C10—C111.6 (3)C20—C19—C24—C230.8 (3)
C9—C10—C11—C12−1.7 (3)C18—C19—C24—C23−177.95 (19)
C9—C10—C11—F1179.68 (19)C20—C19—C24—N4−179.49 (18)
F1—C11—C12—C13178.76 (18)C18—C19—C24—N41.8 (2)
C10—C11—C12—C130.1 (3)C25—N4—C24—C23176.4 (2)
C11—C12—C13—C81.6 (3)C25—N4—C24—C19−3.3 (2)
C9—C8—C13—C12−1.7 (3)C24—N4—C25—O1−175.0 (2)
C7—C8—C13—C12179.65 (17)C24—N4—C25—C183.3 (2)
C6—C7—C14—N10.55 (19)N2—C18—C25—O154.6 (3)
C8—C7—C14—N1179.78 (16)C19—C18—C25—O1176.3 (2)
C6—C7—C14—C15176.46 (17)N2—C18—C25—N4−123.82 (18)
C8—C7—C14—C15−4.3 (3)C19—C18—C25—N4−2.0 (2)
C1—N1—C14—C7−1.0 (2)C1—N1—C26—C2762.8 (3)
C26—N1—C14—C7−170.54 (16)C14—N1—C26—C27−129.9 (2)
C1—N1—C14—C15−177.30 (15)C1—N1—C26—C28−65.4 (3)
C26—N1—C14—C1513.2 (3)C14—N1—C26—C28102.0 (2)
D—H···AD—HH···AD···AD—H···A
N4—H1N1···O2i0.85 (2)1.92 (3)2.750 (19)165 (2)
O2—H1O2···O1ii0.98 (9)1.67 (9)2.650 (2)172 (11)
  14 in total

1.  Synthesis, antibacterial, antifungal and anti-HIV activities of Schiff and Mannich bases derived from isatin derivatives and N-[4-(4'-chlorophenyl)thiazol-2-yl] thiosemicarbazide.

Authors:  S N Pandeya; D Sriram; G Nath; E DeClercq
Journal:  Eur J Pharm Sci       Date:  1999-10       Impact factor: 4.384

2.  Synthesis of pyrazoles and isoxazoles as potent alpha(v)beta3 receptor antagonists.

Authors:  Thomas D Penning; Albert Khilevich; Barbara B Chen; Mark A Russell; Mark L Boys; Yaping Wang; Tiffany Duffin; V Wayne Engleman; Mary Beth Finn; Sandra K Freeman; Melanie L Hanneke; Jeffery L Keene; Jon A Klover; G Allen Nickols; Maureen A Nickols; Randall K Rader; Steven L Settle; Kristen E Shannon; Christina N Steininger; Marisa M Westlin; William F Westlin
Journal:  Bioorg Med Chem Lett       Date:  2006-04-18       Impact factor: 2.823

3.  3-Amino-1,4,5,6-tetrahydropyrrolo[3,4-c]pyrazoles: a new class of CDK2 inhibitors.

Authors:  Paolo Pevarello; Daniele Fancelli; Anna Vulpetti; Raffaella Amici; Manuela Villa; Valeria Pittalà; Paola Vianello; Alexander Cameron; Marina Ciomei; Ciro Mercurio; James R Bischoff; Fulvia Roletto; Mario Varasi; Maria Gabriella Brasca
Journal:  Bioorg Med Chem Lett       Date:  2005-11-14       Impact factor: 2.823

4.  Synthesis and preliminary biological studies of 3-substituted indoles accessed by a palladium-catalyzed enantioselective alkene difunctionalization reaction.

Authors:  Tejas P Pathak; Keith M Gligorich; Bryan E Welm; Matthew S Sigman
Journal:  J Am Chem Soc       Date:  2010-06-16       Impact factor: 15.419

5.  Synthesis of some acyclonucleosides alpha-(pyrazolo[3,4-d]pyrimidin-4-ylthio)alkylamides.

Authors:  M L Taha; O Moukha-Chafiq; H B Lazrek; J J Vasseur; J L Imbach
Journal:  Nucleosides Nucleotides Nucleic Acids       Date:  2001 Apr-Jul       Impact factor: 1.381

6.  New pyrazolo[3,4-b]pyrazines: synthesis and biological activity.

Authors:  H S el-Kashef; T I el-Emary; M Gasquet; P Timon-David; J Maldonado; P Vanelle
Journal:  Pharmazie       Date:  2000-08       Impact factor: 1.267

7.  Synthesis of newer thiadiazolyl and thiazolidinonyl quinazolin-4 3H-ones as potential anticonvulsant agents.

Authors:  V K Srivastava; Ashok Kumar
Journal:  Eur J Med Chem       Date:  2002-11       Impact factor: 6.514

8.  Synthesis and antitumor activity of novel 2-amino-4-(3,5,5-trimethyl-2-pyrazolino)-1,3,5-triazine derivatives.

Authors:  Z Brzozowski; F Saczewski
Journal:  Eur J Med Chem       Date:  2002-09       Impact factor: 6.514

9.  Crystal structure refinement with SHELXL.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr C Struct Chem       Date:  2015-01-01       Impact factor: 1.172

10.  Structure validation in chemical crystallography.

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