methyl 4-(1,3-dioxoisoindol-2-yl)but-2-enoate

methyl 2-(2-oxooxolan-3-yl)acetate

2-methyl-3-(trichloromethyl)-1λ⁶,2,4-benzothiadiazine 1,1-dioxide

2,2-dimethoxy-1-(4-methylphenyl)ethanone

2-羟基-1-(4-甲基苯基)乙酮