2-methyl-3,4-dihydropyrrolo[1,2-a]pyrazin-1(2H)-one InChI=1/C8H10N2O/c1-9-5-6-10-4-2-3-7(10)8(9)11/h2-4H,5-6H2,1H pyrrolo[1,2-a]pyrazin-1(2H)-one, 3,4-dihydro-2-methyl-