7,9-dimethyl-6-(5-methylfuran-2-yl)-2-nitro-11-phenyl-6H-benzo[b]pyrimido[4',5':3,4]pyrrolo[1,2-d]oxazine-8,10(7H,9H)-dione

6-(2-amino-5-nitrophenyl)-1,3-dimethyl-5-phenyl-1H-pyrrolo[3,4-d]pyrimidine-2,4(3H,6H)-dione

ethyl 7,9-dimethyl-8,10-dioxo-6-(5-methylfuran-2-yl)-11-phenyl-7,8,9,10-tetrahydro-6H-benzo[b]pyrimido[4',5':3,4]pyrrolo[1,2-d][1,4]oxazine-2-carboxylate

(S)-1,3-dimethyl-5-phenyl-6-(2-(tritylthio)propyl)-1H-pyrrolo[3,4-d]pyrimidine-2,4(3H,6H)-dione

4-(1,3-dimethyl-2,4-dioxo-5-phenyl-1,2,3,4-tetrahydro-pyrrolo[3,4-d]pyrimidin-6-yl)-butyric acid