Antibacterials and Antimycotics: Part 1: Synthesis and Activity of 2-Pyrazoline Derivatives.
作者:Dhananjaya NAUDURI、Gopu Bala Show REDDY
DOI:10.1248/cpb.46.1254
日期:——
A series of 3-styryl-1,5-diphenyl and 5-styryl-1,3-diphenyl 2-pyrazolines of different substitutions has been synthesized by condensation of substituted alpha,beta-unsaturated ketones with phenylhydrazine hydrochloride in presence of catalytic amount of concentrated HCl. Compounds in the 3-styryl series had OMe, NMe2, NO2, OH and isopropyl substituents and those in the 5-styryl series had OMe, NMe2
在催化剂量的催化下,将取代的α,β-不饱和酮与盐酸苯肼缩合,合成了一系列不同取代度的3-苯乙烯基-1,5-二苯基和5-苯乙烯基-1,3-二苯基2-吡唑啉。浓盐酸。3-苯乙烯基系列的化合物具有OMe,NMe2,NO2,OH和异丙基取代基,而5-苯乙烯基系列的化合物具有OMe,NMe2和NOs。就几何平均最小抑制浓度(MIC)而言,3-苯乙烯基-1,5-二苯基化合物对革兰氏阳性和革兰氏阴性细菌的抗菌活性几乎没有变化。发现4',4“ -NMe2、4',4” -NO2和4',4“ -OMe化合物具有最高的活性。5-styryl-1,3-diphenyl系列的活性较低。比三苯乙烯系列。