Synthesis and anticancer evaluation of novel 2-cyclopropylimidazo[2,1-b][1,3,4]-thiadiazole derivatives
作者:Malleshappa N. Noolvi、Harun M. Patel、Navjot Singh、Andanappa K. Gadad、Swaranjit Singh Cameotra、Arvind Badiger
DOI:10.1016/j.ejmech.2011.07.012
日期:2011.9
A series of 2,5,6-trisubstituted imidazo[2,1-b][1,3,4]-thiadiazole derivatives 4(a–k) have been prepared by reaction of 2-amino-5-cyclopropyl-1,3,4-thiadiazole and an appropriate phenacyl bromide. Further 5-bromo 5(a–k) and 5-thiocyanato 6(a–k) derivatives were synthesized in order to study the effect of these substituents on antitumor activity. Structures of these compounds were established by IR
通过2-氨基-5-环丙基-1的反应制备了一系列2,5,6-三取代的咪唑并[ 2,1 - b ] [1,3,4]-噻二唑衍生物4(a - k), 3,4-噻二唑和适当的苯甲酰溴。为了研究这些取代基对抗肿瘤活性的影响,还合成了5-溴5(a - k)和5-硫氰酸根6(a - k)衍生物。这些化合物的结构通过IR,1 H NMR,13建立。13 C NMR和质谱。七种化合物在美国国家癌症研究所(NCI)被授予NSC代码,以 在完整的NCI 60细胞组中以单次高剂量(10 -5 M)进行抗癌活性。在测试的化合物中,发现5-溴-6-(4-氯苯基)-2-环丙基咪唑并[ 2,1 - b ] [1,3,4]噻二唑5b(NSC D - 96022 / 1)是最多的在对白血病癌细胞系具有选择性程度的五个剂量水平筛选中,该系列的有效候选药物。