6-chloro-3-phenyl-1H-pyrimidine-2,4-dione

2,4-dioxo-3-phenyl-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid

1-phenyl-1,3-diazinane-2,4,6-trione

苯基脲

2,4-dioxo-3-phenyl-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid ethyl ester