Intramolecular Ring Transformation of Bis-oxadiazoles to Bis-thiadiazoles and Investigation of Their Anticancer Activities
作者:Sobhi M. Gomha、Zeinab A. Muhammad、Ahmed A. M. El-Reedy
DOI:10.1002/jhet.3300
日期:2018.10
6‐dimethyl‐4‐phenyl‐N′3,N′5‐bis(3‐phenyl‐1,3,4‐thiadiazol‐2(3H)‐ylidene)‐1,4‐dihydropyridine‐3,5‐dicarbohydrazides were synthesized from reaction of 5,5′‐(2,6‐dimethyl‐4‐phenyl‐1,4‐dihydropyridine‐3,5‐diyl)bis(1,3,4‐oxadiazole‐2‐thiol) or diethyl 2,2′‐(2,6‐dimethyl‐4‐phenyl‐1,4‐dihydropyridine‐3,5‐dicarbonyl)bis(hydrazine‐1‐carbodithioate) with various hydrazonoyl chlorides. The structures of new compounds
一系列新的2,6-二甲基-4-苯基Ñ '3,Ñ '5 -双(3-苯基-1,3,4-噻二唑-2(3 H ^) -亚基)-1,4-二氢吡啶‐3,5‐二甲酰肼是由5,5'‐(2,6-二甲基‐4‐苯基‐1,4-二氢吡啶‐3,5‐二基)双(1,3,4‐恶二唑‐2的反应合成的-硫醇)或2,2'-(2,6-二甲基-4-苯基-1,4-二氢吡啶-3,5-二羰基)双(肼-1-碳二硫酸酯)和各种酰氯。根据新化合物的元素分析,IR,1 H NMR和质谱数据,确定了新化合物的结构。筛选了合成化合物对人肝癌细胞(HepG2)的抗癌活性,结果表明化合物6l, 与顺铂参考药物(IC 50值为1.40±1.1μM)相比,6k和6e最为活跃(IC 50分别为7.68±9.8、8.72±9.7和9.78± 9.1μM)。