3-(3',4'-Dimethoxyphenyl)-4-imidazolidon 、
1-(3,5-Bis-trifluoromethyl-benzyl)-8-(2-bromo-acetyl)-3-methyl-1,3,8-triaza-spiro[4.5]decane-2,4-dione 反应 16.0h,
生成 1-(3,5-Bis-trifluoromethyl-benzyl)-8-{2-[3-(3,4-dimethoxy-phenyl)-4-oxo-imidazolidin-1-yl]-acetyl}-3-methyl-1,3,8-triaza-spiro[4.5]decane-2,4-dione