100-39-0
溴化苄
+
103626-03-5
2,3-二氢-1-甲基-3-氧代-1H-吡唑-4-羧酸乙酯
→
~82%
111493-88-0
ethyl 1-methyl-3-phenylmethoxypyrazole-4-carboxylate