作者:Apurba Datta、Dinah Datta、Richard R. Schmidt
DOI:10.1016/s0040-4039(00)74710-1
日期:1992.12
A short practical method for the enantioselective synthesis of (−)-vertinolide precursor 2 is described. The readily available chiral β-alkoxy substituted acrylate 7 has been reacted with the ethyl levulinate to form the tetronic acid nucleus 8, which in three subsequent steps was converted to the known precursor 2 in high overall yield.
描述了用于(-)-眩晕内酯前体2的对映选择性合成的简短实用方法。容易获得的手性β-烷氧基取代的丙烯酸酯7已经与乙酰丙酸乙酯反应形成四氢代酸核8,其在随后的三个步骤中以高总收率转化为已知的前体2。