Cyclopropamitosenes, Novel Bioreductive Anticancer Agents. Synthesis, Electrochemistry, and Biological Activity of 7-Substituted Cyclopropamitosenes and Related Indolequinones
作者:Ann S. Cotterill、Christopher J. Moody、Roger J. Mortimer、Claire L. Norton、Noeleen O'Sullivan、Miriam A. Stephens、Nelson R. Stradiotto、Elizabeth Swann、Ian J. Stratford
DOI:10.1021/jm00048a019
日期:1994.10
The synthesis of the indolequinones 8 and 9 starting from methyl 4-(benzyloxy)-5-methoxy-indole-2-carboxylate (10) is described. The methoxy group in the indolequinones 1, 2, 4, 5, and 7-9 can be displaced by various nitrogen nucleophiles (ammonia, 2-methoxyethylamine, aziridine, 2-methylaziridine, pyrrolidine) in 22-88% yield. The resulting amino-substituted quinones, together with their methoxy precursors
描述了从 4-(苄氧基)-5-甲氧基-吲哚-2-羧酸甲酯 (10) 开始合成吲哚醌 8 和 9。吲哚醌 1、2、4、5 和 7-9 中的甲氧基可被各种含氮亲核试剂(氨、2-甲氧基乙胺、氮丙啶、2-甲基氮丙啶、吡咯烷)置换,产率为 22-88%。通过循环伏安法研究所得氨基取代的醌及其甲氧基前体,以确定它们的还原电位,在 DMF 溶液中,还原电位在 -1.355 至 -1.597 V 范围内(相对于二茂铁)。还测定了化合物对需氧和缺氧哺乳动物细胞的细胞毒性;一般来说,在有氧条件下,环丙戊烯比相应的吡咯并[1,2-a]吲哚醌毒性更大,而后者又比简单的1毒性更大,