3788-94-1
2-乙氧亚甲基乙酰乙酸乙酯
→
13602-96-5
diethyl 2-methylpyridine-3,5-dicarboxylate
80370-42-9
2-甲酰基-3-氧代丙酸乙酯
861407-17-2
ethyl 2-formyl-3-(tosyloxy)acrylate
+
41867-20-3
ethyl 3-aminocrotonate