Enantioselective Total Syntheses and Stereochemical Studies of All Four Stereoisomers of Yingzhaosu C
摘要:
The enantioselective total syntheses and the stereochemistry of all four stereoisomers of yingzhaosu C, an antimalarial peroxy-containing sesquiterpene isolated from yingzhao [Artabotrys uncinatus (L.) Merr.], are described. The key to the syntheses was the combination of Sharpless asymmetric epoxidation and the intramolecular nucleophilic epoxy-opening with a benzylic peroxy group to construct the 1,2-dioxane skeleton. The configurations of the 1,2-dioxanes in four stereoisomers were assigned by spectroscopy and chemical transformation.
Enantioselective Total Syntheses and Stereochemical Studies of All Four Stereoisomers of Yingzhaosu C
作者:Xing-Xiang Xu、Han-Qing Dong
DOI:10.1021/jo00115a019
日期:1995.5
The enantioselective total syntheses and the stereochemistry of all four stereoisomers of yingzhaosu C, an antimalarial peroxy-containing sesquiterpene isolated from yingzhao [Artabotrys uncinatus (L.) Merr.], are described. The key to the syntheses was the combination of Sharpless asymmetric epoxidation and the intramolecular nucleophilic epoxy-opening with a benzylic peroxy group to construct the 1,2-dioxane skeleton. The configurations of the 1,2-dioxanes in four stereoisomers were assigned by spectroscopy and chemical transformation.