Modular Enantioselective Synthesis of an Advanced Pentahydroxy Intermediate of Antimalarial Bastimolide A and of Fluorinated and Chlorinated Analogues
作者:Adrien Quintard、Céline Sperandio、Jean Rodriguez
DOI:10.1021/acs.orglett.8b02213
日期:2018.9.7
A short enantioselective catalytic synthesis of the key C15–C27 fragment of bastimolide A, a natural product showing promising antimalarial bioactivity, is disclosed. The strategic insertion of halogen atoms such as fluorine and chlorine by enantioselective organocatalytic halogenations allowed an excellent stereochemical control for the formation of complex acyclic fragments bearing up to four stereogenic
公开了巴斯德莫瑞德A的关键C15-C27片段的短对映选择性催化合成,巴斯德莫瑞德A是一种天然产品,显示出良好的抗疟生物活性。通过对映选择性的有机催化卤化作用,战略性地插入了卤素原子(如氟和氯),可以很好地控制立体化学,以控制带有多达四个立体中心的复杂无环片段的形成。此外,除了形成天然产物的1,5,7,9,13-五羟基片段外,该策略还开辟了通过卤代醇调节生物活性的途径。