102552-76-1
1-benzhydryl-4-(ethoxycarbonyl)piperazine
→
139329-22-9
ethyl 5-(4-benzhydrylpiperazin-1-yl)pentanoate
82-92-8
苯甲嗪
14660-52-7
5-溴戊酸乙酯
+
841-77-0
二苯甲基哌嗪