5-(2,4-dichlorophenyl)-1,3,4-oxathiazol-2-one

硫酸二甲酯

1-Methyl-2-(methylthio)-4,5-dihydro-1H-imidazole hydroiodide

β-丙氨酸

(4-nitrophenyl) 3-methyl-2-oxoimidazolidine-1-carboxylate