1233-98-3
+
74-88-4
甲基碘
→
~59%
50501-11-6
3,6-dibenzylidene-1,4-dimethylpiperazine-2,5-dione
77-78-1
硫酸二甲酯
3,6-Dibenzyliden-2,5-dioxo-piperazin
35141-14-1
1,4-dimethylpiperazine-2,3,5,6-tetrone