4-amino-3-phenyl-2-sulfanylidene-1,3-thiazole-5-carboxamide

2-amino-7-oxochromene-3-carboxamide

2-imino-7-methoxychromene-3-carboxamide

alpha-氰基苯丙酰胺

2,6-dihydroxy-4-phenyl-pyridine-3,5-dicarbonitrile