Asymmetric Syntheses of Potent Antitumor Macrolides Cryptophycin B and Arenastatin A
作者:Arun K. Ghosh、Alexander Bischoff
DOI:10.1002/ejoc.200300814
日期:2004.5
Efficient and highly stereoselective syntheses of cryptophycin B and arenastatin A, potent cytotoxic agents, are described. An ester-derived titanium enolate mediated syn-aldol reaction was employed to generate the stereocenters C-5 and C-6. The route is convergent and provides a convenient access to the synthesis of structural variants of cryptophycins as well as members of its family.
描述了有效的细胞毒剂隐藻素 B 和阿那他丁 A 的高效且高度立体选择性的合成。采用酯衍生的钛烯醇化物介导的顺醛醇反应来生成立体中心C-5和C-6。该路线是收敛的,为合成隐藻素及其家族成员的结构变体提供了方便的途径。