57110-14-2
methyl α-acetoamidobutanoate
+
124-41-4
甲醇钠
→
57294-55-0
methyl 2-acetamido-2-methoxybutanoate
67-56-1
甲醇
73198-53-5
ethyl 2-(N-(benzyloxy)acetamido)butanoate
3952-66-7
2-氧代丁酸甲酯