Synonyms: 7-Methyl-2-pyrrolidino-5,7-dihydro-6H-pyrrolo(2,3-d)pyrimidin-6-one fumarate (1:2);6H-Pyrrolo(2,3-d)pyrimidin-6-one, 5,7-dihydro-7-methyl-2-(1-pyrrolidinyl)-, (E)-2-butenedioate (1:2);AC1O69O0;LS-139643;(E)-but-2-enedioic acid; 7-methyl-2-pyrrolidin-1-yl-5H-pyrrolo[2,3-d]pyrimidin-6-one;122113-43-3