27317-59-5
β-乙氧基-β-亚氨基丙酸乙酯
+
107-15-3
乙二胺
→
~91%
21418-71-3
ethyl 2-imidazolidin-2-ylideneacetate
19606-92-9
2-Propenoic acid, 3,3-bis(methylthio)-, ethyl ester