重氮甲烷 、 meso-(3aR,4S,7R,7aS)-8,8-diethoxy-2-phenyl-3a,5,6,7a-tetrahydro-1H,3H-4,7-methanoisoindol-1,3-dione 在
氢氧化钾 作用下,
生成 dimethyl (1RS,2RS,3RS,4SR)-7,7-diethoxynorbornane-2,3-dicarboxylate 、
(1R,3R,4S)-7,7-Diethoxy-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid dimethyl ester