氰基乙酯

2-羟基-6-甲基-4H-吡喃-4-酮

3-[1-(2-Amino-4,5-dimethyl-phenylamino)-eth-(E)-ylidene]-dihydro-furan-2-one

ethyl 3-((2-amino-4,5-dimethylphenyl)amino)but-2-enoate

正丁醇