(E)-ethyl 3-(4-(2-cyclopropyloxazol-5-yl)phenyl)acrylate 、
S-benzyltetrahydrothiophenium bromide 在
silica 、
乙酸乙酯 作用下,
以gave the title compound as a colourless oil (300 mg, 7:2, trans:cis, 63%)的产率得到(1R*,2R*,3R*)-Ethyl-2-(4-(2-cyclopropyloxazol-5-yl)phenyl)-3-phenylcyclopropanecarboxylate