作者:Nobuhiro Satoh、Satoshi Yokoshima、Tohru Fukuyama
DOI:10.1021/ol200886j
日期:2011.6.17
A concise and stereoselective total synthesis of (−)-salinosporamide A (1), a potent inhibitor of the 20S proteasome that is in clinical development as an anticancer drug candidate, has been accomplished in 14 steps with 19% overall yield from 4-pentenoic acid. Our synthesis features a stereoselective alkylation utilizing a chiral auxiliary, formation of a pyrrolidine unit, and oxidation of the pyrrolidine
简明和立体选择性的全合成(-)-salinosporamide A(1)是20S蛋白酶体的强抑制剂,正在临床上开发为抗癌药物,已分14个步骤完成,4-戊烯酸的总产率为19%酸。我们的合成方法包括利用手性助剂进行立体选择性烷基化,形成吡咯烷单元以及将吡咯烷氧化为γ-内酰胺。为了证明我们合成的可扩展性,已经以克为单位合成了(-)-salinosporamideA。