Synthesis and Preliminary Biological Evaluations of CC-1065 Analogues: Effects of Different Linkers and Terminal Amides on Biological Activity
作者:Yuqiang Wang、Huiling Yuan、Wenqing Ye、Susan C. Wright、Hong Wang、James W. Larrick
DOI:10.1021/jm990514c
日期:2000.4.1
CC-1065 analogues possessing a biologically active CBI functional group and amide-substituted indole and benzofuran were synthesized. The IC(50) values of compounds 26, bearing two indoles, and 25, bearing only one indole, are 0.4 and 3 nM, respectively, against U937 leukemia cells in vitro. The IC(50) values of compounds 28, bearing a butyramino group, and 27, bearing an acetamino group, are 0.008
合成了具有生物活性CBI官能团的CC-1065类似物,并合成了酰胺取代的吲哚和苯并呋喃。在体外对U937白血病细胞而言,带有两个吲哚的化合物26和仅带有一个吲哚的化合物25的IC(50)值分别为0.4和3 nM。在体外对U937白血病细胞而言,带有丁氨基的化合物28和带有乙酰氨基的化合物27的IC(50)值分别为0.008和0.4 nM。带有双键连接子的化合物29的效力比不带双键连接子的25强约4倍。化合物26对NCI体外筛选中测试的所有细胞系均具有很高的效力,大多数细胞系的IC(50)值在0.1-5 nM范围内。化合物26和30对小鼠的L1210白血病具有高度活性。化合物26对小鼠中的B16BL6黑素瘤也有活性。最重要的是,在治疗有效剂量下26和30并非骨髓抑制性的。肿瘤细胞死亡的机制是通过诱导凋亡,并伴随着DNA断裂。