5-[4-chloro-1-(3,5-dichlorophenyl)-2,5-dioxopyrrol-3-yl]-1,3-dimethylpyrimidine-2,4-dione

1,3-dimethyl-5-(trifluoromethyl)pyrimidine-2,4-dione

1,3-dimethyl-6-(trifluoromethyl)pyrimidine-2,4(1H,3H)-dione

3-methyl-5-(trifluoromethyl)-1H-pyrimidine-2,4-dione

3-氧代丙酸