作者:Catherine Taillier、Véronique Bellosta、Janine Cossy
DOI:10.1021/ol049433n
日期:2004.6.1
(+/-)-Zoapatanol was synthesized by using four key-steps: a Suzuki cross-coupling to prepare a (1)-alpha,beta-unsaturated ester followed by an enantioselective dihydroxylation to control the C2' and C3' stereocenters, an intramolecular Horner-Wadsworth-Emmons olefination to construct the oxepane ring, and a chemoselective nucleophilic addition/Birch reduction process of a Weinreb amide to introduce simultaneously the,beta,gamma-unsaturated ketone on the side-chain and regenerate alcohols from benzyl ethers.
(±)-Zoapatanol的合成采用了四个关键步骤:首先通过铃木偶联反应制备(1)-α,β-不饱和酯,随后进行对映选择性二羟基化以控制C2'和C3'的立体中心,接着通过分子内Horner-Wadsworth-Emmons烯化反应构建氧杂环庚烷环,最后通过Weinreb酰胺的化学选择性亲核加成/布赫还原过程,同时在侧链引入α,β-不饱和酮,并从苄醚再生得到醇。