Total Syntheses of Ningalin A, Lamellarin O, Lukianol A, and Permethyl Storniamide A Utilizing Heterocyclic Azadiene Diels−Alder Reactions
作者:Dale L. Boger、Christopher W. Boyce、Marc A. Labroli、Clark A. Sehon、Qing Jin
DOI:10.1021/ja982078+
日期:1999.1.1
syntheses of ningalin A (1), lamellarin O (2), lukianol A (3), and permethyl storniamide A (5) are detailed on the basis of a common heterocyclic azadiene Diels−Alder strategy (1,2,4,5-tetrazine → 1,2-diazine → pyrrole) ideally suited for construction of the densely functionalized pyrrole cores found in the three classes of marine natural products. Examination of the natural products and a number of synthetic
基于常见的杂环氮杂二烯 Diels-Alder 策略 (1,2, 4,5-四嗪 → 1,2-二嗪 → 吡咯)非常适合构建三类海洋天然产物中的密集功能化吡咯核。对天然产物和许多合成中间体的检查表明,一些包括 lamellarin O (2) 和 Lukianol A (3) 对野生型和多药耐药肿瘤细胞系均表现出适度的细胞毒活性。从根本上更重要的是,公开了一类新的药剂,包括全甲基 storniamide A (5) 及其前体 30,它们缺乏固有的细胞毒活性,可以逆转多重耐药 (MDR) 表型,