A simple synthesis of the β -lactams 11 - 13 and 16 - 17 as novel histone deacetylase (HDAC) inhibitors is described. The key synthetic strategies involved the O-alkylation of 6-APA and the coupling reactions of freshly prepared N-carbobenzyloxy-L-prolines 5 and 6 and 6-aminopenicillanates 8 - 10 and 15 in high yields. It was found that all compounds show potent growth inhibitory activity on human tumor cell lines, the most potent compound 16 exhibiting an IC50 = 2.1 μM in vitro.
本文介绍了一种简单的合成方法,用于合成β-内酰胺11-13和16-17,作为新型组蛋白去乙酰化酶(HDAC)抑制剂。关键的合成策略包括6-APA的O-烷基化和新鲜制备的N-碳苄氧基-L-脯氨酸5和6以及6-氨基青霉素酸盐8-10和15的偶联反应,产率高。研究发现,所有化合物均对人类肿瘤细胞系具有强大的生长抑制活性,其中最有效的化合物16在体外的IC50为2.1μM。