315663-65-1
Ethyl 4-(2-chloroacetyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate
→
89909-47-7
methyl 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate
186581-53-3
重氮甲烷
+
2386-28-9
4-乙酰基-3,5-二甲基-1H-吡咯-2-羧酸