2-[4-(1,3-dimethyl-2,4-dioxo-5H-pyrrolo[4,5-d]pyrimidin-6-yl)phenoxy]-N-phenylacetamide
2-[4-(1,3-dimethyl-2,4-dioxo-5H-pyrrolo[4,5-d]pyrimidin-6-yl)phenoxy]-N-phenyl-acetamide
2-[4-(2,4-diketo-1,3-dimethyl-5H-pyrrolo[4,5-d]pyrimidin-6-yl)phenoxy]-N-phenyl-acetamide
2-[4-(1,3-dimethyl-2,4-dioxo-5H-pyrrolo[4,5-d]pyrimidin-6-yl)phenoxy]-N-phenyl-ethanamide