Asymmetric epoxidation of the divinylcarbinol (7) using L-(+)-diethyl tartrate gave (2R,3S)-1,2-epoxypent-4-en-3-ol (8), which was utilized as a chiral building block in the synthesis of (+)-endo- and (–)-exo-brevicomin.
                                    使用L -(+)-
酒石酸二
乙酯对二
乙烯基甲醇(7)进行不对称环氧化,得到(2 R,3 S)-1,2-环氧戊-4-烯-3-醇(8),用作手性建筑(+)-内-和(-)-外-brevicomin的合成中的阻滞剂。