122113-12-6 6H-Pyrrolo(2,3-d)pyrimidin-6-one, 5,7-dihydro-7-methyl-2-(4-morpholinyl)-, monohydrochloride 7-methyl-2-(4-morpholinyl)-5,7-Dihydro-6H-pyrrolo(2,3-d)pyrimidin-6-one monohydrochloride