Stereodivergent Approach to the Avermectins Based on “Super Silyl” Directed Aldol Reactions
作者:Patrick B. Brady、Susumu Oda、Hisashi Yamamoto
DOI:10.1021/ol501327g
日期:2014.8.1
A stereodivergent approach to the spiroketal fragment of the avermectins is described. The strategy utilizes a sequence of three aldol reactions directed by the tris(trimethylsilyl)silyl “super silyl” group. Central to this strategy is that each aldol reaction can be controlled to allow access to either diastereomer in high stereoselectivity, thereby affording 16 stereoisomers along the same linear