108-24-7
乙酸酐
+
35629-72-2
2-amino-oxazole-4-carboxylic acid ethyl ester, hydrochloride
→
35629-42-6
ethyl 2-acetamido-1,3-oxazole-4-carboxylate
177760-52-0
2-氨基噁唑-4-甲酸乙酯
35629-43-7
2-acetamido-1,3-oxazole-4-carboxamide