(2,4-dimethoxy-3,6-dioxocyclohexa-1,4-dien-1-yl)methyl N-methylcarbamate

N-[3-(4-bromoanilino)-1-[4-(dimethylamino)phenyl]-3-oxoprop-1-en-2-yl]benzamide

N-甲基氨基甲酸丁酯

1,3-dimethyl-5,6-diphenylpyrimidine-2,4-dione

ethyl 1-methyl-2,5-dioxo-3-phenylimidazolidine-4-carboxylate