An efficient and enantioselective total synthesis of naturally occurring L-783277
作者:Hwan Geun Choi、Jung Beom Son、Dong-Sik Park、Young Jin Ham、Jung-Mi Hah、Taebo Sim
DOI:10.1016/j.tetlet.2010.07.122
日期:2010.9
Naturally occurring L-783277 which belongs to 14-membered resorcylic acid lactones (RALs) turned out to be a potent kinase inhibitor against MEK (MAP kinase kinase). We successfully accomplished efficient and enantioselective total synthesis of L-783277 based on convergent assembly of one aromatic unit and two chiral building blocks with efficient orthogonal protection-deprotection strategy. Three
属于14元间苯二酸内酯(RAL)的天然存在的L-783277被证明是一种有效的针对MEK的激酶抑制剂(MAP激酶激酶)。我们成功地完成了L-783277的高效和对映选择性合成,这是基于一个芳香单元和两个手性结构单元的聚合组装以及有效的正交保护-去保护策略而完成的。随后采用三个关键步骤组成烯烃交叉复分解,向乙醛中添加乙炔衍生物和山口大内酯化来构建L-783277的构架。L-783277的旋光度值是本函中的首次。