3,6,7,7a-tetrahydro-1H-pyrrolo[1,5-a]imidazole-2,5-dione 3,6,7,7a-tetrahydro-1H-pyrrolo[1,5-a]imidazole-2,5-quinone 126100-97-8 Dihydro-1H-pyrrolo(1,2-a)imidazole-2,5(3H,6H)-dione Dimiracetam Dimiracetam [INN] (+-)-Dihydro-1H-pyrrolo(1,2-a)imidazole-2,5(3H,6H)-dione 1H-Pyrrolo(1,2-a)imidazole-2,5(3H,6H)-dione, dihydro-