作者:Naoyuki Kotoku、Yuji Sumii、Motomasa Kobayashi
DOI:10.1021/ol201327u
日期:2011.7.1
A stereoselective synthesis of the core structure of cortistatin A (1), a novel antiangiogenic steroidal alkaloid from Indonesian marine sponge, is described. An 8-oxabicyclo[3.2.1]octene system, a characteristic B-ring structure of 1, was elaborated by a 7-endo selective intramolecular Heck cyclization and a subsequent acid-mediated oxy-Michael reaction.
立体选择性合成cortistatin A(1)的核心结构,一种来自印度尼西亚海洋海绵的新型抗血管生成类固醇生物碱。通过7-内选择性分子内Heck环化和随后的酸介导的氧-迈克尔反应,对8-氧杂双环[3.2.1]辛烯系统(其特征性的B-环结构为1)进行了详细说明。