作者:Frederick Calo、Jeffery Richardson、Andrew J.P. White、Anthony G.M. Barrett
DOI:10.1016/j.tetlet.2009.01.057
日期:2009.4
An enantioselective formal total synthesis of (−)-trachyspic acid was carried out using, as key steps, an asymmetric aldol reaction of a chiral oxazolidinone and a diastereoselective alkylation of a chiral 1,3-dioxolan-2-one. The key lactone 3 was synthesized in five steps starting from dioxolanone 9.
对映体形式的(-)-trachyspicic酸的对映选择性正式全合成是使用手性恶唑烷酮的不对称醛醇缩合反应和手性1,3-二氧戊环-2-酮的非对映选择性烷基化作为关键步骤进行的。从二氧戊环酮9开始,通过五个步骤合成了关键的内酯3。