A catalytic asymmetric synthesis of a versatile intermediate for phorbol derivatives
作者:Hideaki Sato、Yun Sik Kim、Masakatsu Shibasaki
DOI:10.1016/s0040-4039(99)00340-8
日期:1999.4
A catalytic asymmetric cyclopropanation of enol silyl ether 9 gave the lactone 3 in up to 78% ee. The lactone 3 was then transformed into 2, potentially a very versatile intermediate for phorbol analogs, using an intramolecular nitrile oxide cycloaddition as a key step.
烯醇甲硅烷基醚9的催化不对称环丙烷化得到内酯3的ee高达78%。然后使用分子内一氧化氮环加成作为关键步骤,将内酯3转化为2,可能是佛波醇类似物的通用性很强的中间体。