1-but-3-enyl-3,4-dimethylpyrrole-2,5-dione

3-丁烯基脲

1-[[but-3-enyl-[(2-oxopyrrolidin-1-yl)methyl]amino]methyl]pyrrolidin-2-one

N-but-3-enyl-2-nitrobenzenesulfonamide

ethyl N-but-3-enylcarbamate