Enantioselective Syntheses of (-)-Alloyohimbane and (-)-Yohimbane by an Efficient Enzymatic Desymmetrization Process
作者:Arun K. Ghosh、Anindya Sarkar
DOI:10.1002/ejoc.201601171
日期:2016.12
Enantioselectivesyntheses of (-)-alloyohimbane and (-)-yohimbane was accomplished in a convergent manner. The key step involved a modified mild protocol for the enantioselective enzymatic desymmetrization of meso-diacetate. The protocol provided convenient access to an optically active monoacetate in multi-gram scale in high enantiomeric purity. This monoacetate was converted to (-)-alloyohimbane