Synonyms: 4,7-Diphenyl-3-ethyl-5-methyl-1H-pyrrolo(3,4-d)pyrimidin-2(3H)-one hydrochloride;1H-Pyrrolo(3,4-d)pyrimidin-2(3H)-one, 4,7-diphenyl-3-ethyl-5-methyl-, hydrochloride;AC1MIJV7;LS-139653;3-ethyl-5-methyl-4,7-diphenyl-1H-pyrrolo[3,4-d]pyrimidin-2-one hydrochloride;61948-13-8