4-(4-dimethylamino-phenyl)-3,3,6-triphenyl-3,4-dihydro-pyran-2-one

1,2,4,4-tetraphenyl-[1,2]diazetidin-3-one

二苯甲胺

N,N-dimethyl-1,1-diphenylmethanamine

氯二苯基乙酸