79289-83-1
1-(diphenylmethylene)-3-oxo-4-phenyl-1,2-diazetidinium inner salt
→
~81%
21083-13-6
1-benzhydryl-4-phenyldiazetidin-3-one
2912-62-1
DL-2-氯-2-苯基乙酰氯
5350-57-2
二苯甲酮腙