Synthesis of (+)-Madindoline A and (+)-Madindoline B
作者:Lifeng Wan、Marcus A. Tius
DOI:10.1021/ol062919e
日期:2007.2.1
The allene ether version of the Nazarovcyclization was used to construct the cyclopentane dione portion of madindolines A and B. The racemic cyclopentane dione from the Nazarovcyclization was converted to an enol ether that was combined with the chiral, nonracemic hydroxyfuroindoline in a Mannich reaction. Deprotection and oxidation led to (+)-madindoline A and (+)-madindoline B. [reaction: see text]