Novel 2-pyrazoline derivatives as potential anticonvulsant agents
摘要:
A series of new 2-pyrazoline derivatives has been synthesized by reacting 3-(substituted-phenyl)-1-pyridin-2-yl-propenones using two routes one using thiosemicarbazide and the other by hydrazine hydrate. The chemical structures were established by IR, Mass, H-1-NMR, C-13-NMR spectroscopic data, and elemental analysis. The anticonvulsant activity of the synthesized compounds was evaluated by the "maximal electroshock seizure" (MES) test and pentylenetetrazole (PTZ) test using male albino mice. Compounds 2e, 5-(naphthalene-1-yl)-3-(pyridine-2-yl)-4,5-dihydro-1H-pyrazole-1-carbothioic acid amide, and 3c, N-ethyl-5-(naphthalene-1-yl)-3-(pyridine-2-yl)-4,5-dihydro-1H-pyrazole-1-carbothioamide showed appreciable activity in the MES as well as PTZ test at all the evaluated doses.
Enantioselective synthesis of chiral α,β-unsaturated γ-substituted butyrolactams by organocatalyzed direct asymmetric vinylogous Michael addition of α,β-unsaturated γ-butyrolactam to 2-enoylpyridines
organocatalyzed direct asymmetric vinylogous Michaeladdition reaction of α,β-unsaturated γ-butyrolactam to 2-enoylpyridines has been developed with a chiral bifunctional amine-squaramide as the catalyst. This approach provides easy access to a series of optically active α,β-unsaturated γ-substituted butyrolactams in high yields (up to 99%) with excellent diastereoselectivities (up to >99 : 1) and enantioselectivities
Spectroscopic Study of DNA Hydrolysis, DNA Intercalative, and Electrostatic Interaction Activity Exerted by Drug Based Coordination Compounds
作者:Mohan N. Patel、Bhupesh S. Bhatt、Promise A. Dosi
DOI:10.1002/zaac.201100307
日期:2012.1
mononuclear copper(II) complexes with second generation fluoroquinolone drug ciprofloxacin (CFL) and some bipyridine derivatives (An) of type [Cu(CFL)(An)Cl]·2H2O. The DNA binding free energies were evaluated by studying the effect of salt concentrations on DNA binding. DNAinteractions were investigated by using DNA melting temperature studies, viscosity measurements, absorption titration, and gel electrophoresis
我们的工作重点是合成和表征中性单核铜 (II) 配合物与第二代氟喹诺酮类药物环丙沙星 (CFL) 和一些 [Cu(CFL)(An)Cl]·2H2O 型联吡啶衍生物 (An)。通过研究盐浓度对 DNA 结合的影响来评估 DNA 结合自由能。通过使用 DNA 熔解温度研究、粘度测量、吸收滴定和凝胶电泳实验来研究 DNA 相互作用。还研究了超氧化物歧化酶 (SOD) 样活性(IC50 值)和金属配合物的抗菌活性。为了验证质粒 DNA 切割的正确机制途径,在自由基清除剂的存在下进行了凝胶电泳实验。
Synthesis, DFT Calculation, DNA Binding, and Biological Evaluation of Some Mononuclear Ru(III) Сomplexes with 2,6-Bis(2-benzimidazolyl)pyridine Bearing Different p-Substituted Heterochalcones
作者:A. K. Singh、R. K. Singh、F. Arshi、S. K. Singh、K. Dhariyal、A. Khare、A. Kumar、L. Kumari、S. K. Singh