溴甲苯 、
2-碘代乙基苯 、
1,3-dibenzyl-1,2,3,4,5,6-hexahydropyrimidine-2,5-dione 生成 1,3,4-Tribenzyl-6-phenethyl-tetrahydro-pyrimidine-2,5-dione 、
(4S,6S)-1,3,4-Tribenzyl-6-phenethyl-tetrahydro-pyrimidine-2,5-dione 、 (4R,6R)-1,3,4-Tribenzyl-6-phenethyl-tetrahydro-pyrimidine-2,5-dione