2-氰基-3-乙氧基-2-丁类硫代酰胺

2-(1-aminoethylidene)propanedinitrile

5-amino-3-methyl-1-phenylpyrazole-4-carboxamide

4-氧代四氢呋喃-3-羧酸甲酯

1-(3-tetrahydrofuranyl)-3-methyl-5-amino-1H-pyrazole-4-carbonitrile