2-氰基硫代乙酰胺

邻氨基苯甲酸

2-(4-oxo-3,4-dihydro-2-quinazolinyl)-2-(tetrahydro-2-furanylidene)acetonitrile

α-cyanoiminothioacetic acid ethyl ester

(4-oxo-4H-3,1-benzoxazin-2-yl)-2-acetonitrile