1-methyl-1-[(E)-pyridin-2-ylmethylideneamino]thiourea

pyridine-2-carbaldehyde-(2,S-dimethyl-iso thiosemicarbazone)

methyl 2-iodoacetate

5-羟基-1H-吲哚-2-羧酸甲酯

[(E)-but-2-en-2-yl]benzene