(2S,2'S)-2,2'-(biphenyl-4,4'-diyl)bis(2-oxoethane-2,1-diyl) bis(2-(tert-butoxycarbonylamino)-3,3-dimethylbutanoate) 在
ammonium acetate 作用下,
以
5,5-dimethyl-1,3-cyclohexadiene 为溶剂,
反应 3.0h,
以0.86 g的产率得到tert-butyl (1S,1'S)-1,1'-(4,4'-(biphenyl-4,4'-diyl)bis(1H-imidazole-4,2-diyl))bis(2,2-dimethylpropane-1,1-diyl)dicarbamate