1,2,3,4-tetraphenyl-1,2,3,4-butanetetrol

2-hydroxy-1,2,3-triphenylpropan-1-one

3-氧代吡咯里嗪-2-羧酸乙酯

2-氯-N-甲基-6-硝基苯胺

ethyl 4-(N-phenyl-N-methylamino)-2-butynoate