2-(Benzoylamino)-5,6,7,8-tetrahydro-7,7-dimethyl-5-oxo-4–methyl-4H-1-benzopyran-3-carboxylic acid methyl ester
1-[1,2,3,4-Tetrahydro-1,3-dimethyl-6-(methylamino)-2,4-dioxo-5-pyrimidinyl]-1,2-hydrazinedicarboxylic]acid, 1,2-diethyl ester