95-92-1
乙二酸二乙酯
+
161198-53-4
→
~57%
61151-88-0
diethyl 2-methyl-1,3-oxazole-4,5-dicarboxylate
21164-33-0
ethyl 2-(1-ethoxyethylideneamino)acetate
ethyl 2-((1-(methylthio)ethylidene)amino)acetate
61151-89-1
2-methyl-1,3-oxazole-4,5-dicarboxamide