Antitumor Agents. V. Synthesis and Antileukemic Activity of E-Ring-Modified (RS)-Camptothecin Analogues.
作者:Akio EJIMA、Hirofumi TERASAWA、Masamichi SUGIMORI、Satoru OHSUKI、Kensuke MATSUMOTO、Yasuyoshi KAWATO、Megumi YASUOKA、Hiroaki TAGAWA
DOI:10.1248/cpb.40.683
日期:——
Several E-ring-modified analogues of (RS)-camptothecin were synthesized by total synthesis via Friedländer condensation and evaluated for cytotoxicity and antitumor activity against P388 mouse leukemia cells. Among them, (RS)-20-deoxyamino-7-ethyl-10-methoxycamptothecin (25c) was found to be more active than (RS)-camptothecin (1) in the in vivo assay.
(RS)-喜树碱的几种E环修饰的类似物是通过Friedländer缩合通过全合成法合成的,并评估了其对P388小鼠白血病细胞的细胞毒性和抗肿瘤活性。其中,在体内测定中发现(RS)-20-脱氧氨基-7-乙基-10-甲氧基喜树碱(25c)比(RS)-喜树碱(1)更具活性。