作者:Shun-Ming Yu、Wen-Xu Hong、Yuan Wu、Chun-Long Zhong、Zhu-Jun Yao
DOI:10.1021/ol100135a
日期:2010.3.5
A bidirectional total synthesis of chloptosin has been achieved in 16 operations (32 individual reactions) and 3% overall yield from the readily available materials. Palladium-catalyzed tryptophan synthesis, diastereoselective selenocyclization and oxidative deselenation successfully served as key steps in construction of the dimeric core amino acid. 2-Bromo-1-ethyl pyridinium tetrafluoroborate was
通过16种操作(32个单独的反应)已实现了胰蛋白酶的双向全合成,并且容易获得的材料的总收率为3%。钯催化的色氨酸合成,非对映选择性硒环化和氧化脱硒成功地成为构建二聚体核心氨基酸的关键步骤。2-溴-1-乙基吡啶鎓四氟硼酸酯被有效地用于肽偶联中,并且在该合成中具有空间限制。