54393-21-4
(Z)-3-Amino-2-methyl-2-butenoic Acid Ethyl Ester
+
105-53-3
丙二酸二乙酯
→
~51%
77629-51-7
2,4-二羟基-5,6-二甲基烟酸乙酯
14369-90-5
Ethyl 3-amino-2-methyl-2-butenoate