119-61-9
二苯甲酮
+
29976-53-2
N-乙氧羰基-4-哌啶酮
→
~94%
102449-34-3
ethyl 4-benzhydrylidenepiperidine-1-carboxylate
6071-93-8
4-benzhydrylidene-1-methylpiperidine
541-41-3
氯甲酸乙酯
50706-57-5
4-二苯基亚甲基哌啶