21190-16-9
4-氨基-1H-咪唑-5-羧酸乙酯
→
~70%
33235-31-3
5-氟-1H-咪唑-4-羧酸乙酯
76182-23-5
ethyl 5-amino-1-(tert-butyl)-1H-imidazole-4-carboxylate
3849-21-6
2-肟氰乙酸乙酯
150464-08-7
ethyl 2-amino-2-cyano-acetate*oxalate