95-92-1
乙二酸二乙酯
+
1904-58-1
2-氨基亚苯基肼
→
~86%
34127-27-0
ethyl 3-amino-4-oxoquinazoline-2-carboxylate
617-36-7
草酸酰胺乙酯
~76%
31143-83-6
2-Ethoxycarbonyl-4H-3,1-benzoxazin-4-one
~60%
118-92-3
邻氨基苯甲酸
127692-01-7
3-ethyl-[1,2,4]triazino[6,1-b]quinazoline-4,10-dione