Intramolecular michael-addition-induced Z→E isomerization of horner-emmons reaction products during the synthesis of the N(14)-C(18) subunit of cyclotheonamide A
作者:Patricia Roth、Rainer Metternich
DOI:10.1016/0040-4039(92)88082-g
日期:1992.7
The protected N(14) to C(18) amino acid subunit of cyclotheonamide A () has been stereoselectively prepared via Horner-Emmons reaction followed by a novel intramolecular Michael-Addition-induced Z→E isomerization of the α,β-unsaturated carboxylic ester .
受保护的N(14)〜C(18)氨基酸亚基cyclotheonamide A的()已经经由立体选择性地制备霍纳-埃蒙斯反应,随后通过一种新颖的分子内迈克尔加成诱导的α的Ž→ë异构化,β不饱和羧酸的酯。