2,4-diphenyl-cyclobutane-1,3-dicarboxylic acid bis-(2-methoxycarbonyl-tropan-3-yl ester)

1,3-dicinnamoyl-2,4-diphenyl-cyclobutane

醋酸

2,2'-dicyano-3,3'-(2,4-diphenyl-cyclobutane-1,3-diyl)-di-acrylic acid dimethyl ester

丙酮