29655-79-6
2-[(2-乙氧基-2-氧代乙基)氨基]-2-氧代乙酸乙酯
→
~88%
68208-09-3
ethyl 5-ethoxy-1,3-oxazole-2-carboxylate
623-33-6
甘氨酸乙酯盐酸盐
+
95-92-1
乙二酸二乙酯