3-amino-5-(phenylamino)isothiazole-4-carboxylic acid ethyl ester

5-anilino-3-oxo-1,2-thiazole-4-carbonitrile

2-ethyl-5-imino-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one

alpha-溴-alpha-氰基乙酸乙酯

ethyl 2-cyanohex-2-enoate