6-chloro-1,3-dimethyl-5-nitropyrimidine-2,4-dione

5-[(4-hydroxy-3-methoxyphenyl)methylidene]-1,3-dimethyl-1,3-diazinane-2,4,6-trione

5-(4-hydroxy-3-methoxyphenyl)-1,1',3,3'-tetramethyl-1H,1'H-spiro[furo[2,3-d]pyrimidine-6,5'-pyrimidine]-2,2',4,4',6'(3H,3'H,5H)-pentaone

1,3-二甲基-1,3-二嗪农-2,4,5,6-四酮

5,5-dichloro-1,3-dimethyl-1,3-diazinane-2,4,6-trione