Synthesis and antitumor activity of structural analogs of the epipodophyllotoxins
作者:Larry L. Klein、Clinton M. Yeung、Daniel T. Chu、Edith J. McDonald、Jacob J. Clement、Jacob J. Plattner
DOI:10.1021/jm00107a016
日期:1991.3
Several ring-contracted analogues of the antitumor agent etoposide have been prepared. The synthesis of the simple indanyl system 3 is described along with two bicyclic systems of general structure 4 prepared through a stereoselective allylation of the keto-ester 6. A cis-fused lactone analogue 5, which is isomeric with the etoposide aglycone, has been synthesized via a dialkylation of the indene-2-carboxylate
已经制备了几种抗肿瘤药依托泊苷的环收缩类似物。描述了简单的茚满基系统3的合成以及通过酮酯6的立体选择性烯丙基化制备的两个具有通用结构4的双环系统。已经合成了与依托泊苷糖苷配基异构体的顺式融合内酯类似物5。通过茚-2-羧酸根阴离子的二烷基化。描述了这些烷基化的区域化学和立体化学结果。描述了这些衍生物对几种肿瘤细胞系的细胞毒性,并且通常遵循已知的鬼臼毒素(2)的结构-活性关系。