Antitumor agents. 3. Synthesis and biological activity of 4.beta.-alkyl derivatives containing hydroxy, amino, and amido groups of 4'-O-demethyl-4-desoxypodophyllotoxin as antitumor agents
作者:Tadafumi Terada、Katsuhiko Fujimoto、Makoto Nomura、Junichi Yamashita、Konstanty Wierzba、Ryoko Yamazaki、Jiro Shibata、Yoshikazu Sugimoto、Yuji Yamada
DOI:10.1021/jm00064a002
日期:1993.6
A series of 4 beta-alkyl (7-10), 4 beta-aminoalkyl (12a-y), and 4 beta-amidoalkyl derivatives (14a-g) of 4'-O-demethyl-4-desoxypodophyllotoxin have been synthesized, and their cytotoxicity, inhibition of DNA topoisomerase II (Topo II), and tubulin polymerization were evaluated. All derivatives of 12a-y and 14a-g did not inhibit tubulin polymerization. Many compounds exhibited cytotoxicity and inhibition
合成了一系列4'-O-脱甲基-4-脱氧鬼臼毒素的4个β-烷基(7-10),4个β-氨基烷基(12a-y)和4个β-酰胺基烷基衍生物(14a-g),并且评估了它们的细胞毒性,对DNA拓扑异构酶II(Topo II)的抑制作用以及微管蛋白聚合作用。12a-y和14a-g的所有衍生物均不抑制微管蛋白聚合。许多化合物表现出细胞毒性和对Topo II的抑制作用。特别是12o,12s,12t和12u会强烈抑制Topo II(分别为IC50(microM)32.5、60.9、58.8和33.6),并且对P388细胞具有很强的细胞毒性(IC50(M)1.0、4.1、3.3和分别为3.0 x 10(-9)和VP-16(IC50(microM)59.2,IC50(M)1 x 10(-8))。这些化合物的体内抗肿瘤活性几乎等于或优于VP-16(L1210,P388,