3-氯-6-肼基哒嗪

cyclohexanone O-diethoxymethyloxime

乙氧基甲叉丙二酸二乙酯

N'-(4-nitro-benzoyl)-formohydrazonic acid ethyl ester

[(2-(6-chloro-3-pyridazinyl)hydrazino)methylene]propanedioic acid diethyl ester