(1,1-二甲基-3-氧代丁基)膦酸二甲酯

(4-nitrophenyl)methyl 2-dimethoxyphosphoryl-2-hydroxyacetate

methyl (E)-4-oxo-4-phenylbut-2-enoate

硫光气

thiophosphoric acid O,O'-dimethyl ester-S-trichloromethyl ester