A short synthesis of the C15–C21 segment of (+)-discodermolide, based on an asymmetric approach from achiral 2-methyl-1,3-propanediol to versatile enantiopure stereotriads
作者:Kazi A. Shahid、Yong-Nan Li、Momotoshi Okazaki、Yoshihiro Shuto、Fumitaka Goto、Syun-ichi Kiyooka
DOI:10.1016/s0040-4039(02)01373-4
日期:2002.9
A new approach was developed to versatile enantiopure stereotriads using chiral oxazaborolidinone-promoted asymmetric aldol reaction of a racemic aldehyde with a bromo silyl nucleophile. A short synthesis of the C15–C21 segment of (+)-discodermolide was achieved by elongation of one of the stereotriads with further diastereoselective aldol reaction with the same nucleophile.
已开发出一种新的方法,用于使用手性草酰氮杂硼硼烷酮促进的外消旋醛与溴甲硅烷基亲核试剂的不对称醛醇缩合反应形成的多功能对映体纯立体三联体。(+)-discodermolide的C 15 –C 21片段的短合成是通过延长一个立体三单元组与同一亲核试剂进一步进行非对映选择性醛醇缩合反应而实现的。