1-(2-fluorobenzyl)tetrahydrothiophenium bromide 、
3-氟溴苄 、
(E)-ethyl 3-(2-cyclopropylpyridin-4-yl)acrylate 、
1-(3-chlorobenzyl)tetrahydro-1H-thiophen-1-ium bromide 在
silica 、
乙酸乙酯 作用下,
以gave the title compound as a colourless oil (243 mg, 85%, 3:2 trans:cis)的产率得到(1S*,2R*,3R*)-Ethyl-2-(3-fluorophenyl)-3-(2-cyclopropylpyridin-4-yl)cyclopropanecarboxylate