2-(7-methyl-5-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-2-yl)-1,3-thiazole-4-carboxylic acid 4-thiazolecarboxylic acid, 2-(6,7-dihydro-7-methyl-5-oxo-5H-pyrrolo[3,4-b]pyridin-2-yl)- InChI=1/C12H9N3O3S/c1-5-9-6(10(16)13-5)2-3-7(14-9)11-15-8(4-19-11)12(17)18/h2-5H,1H3,(H,13,16)(H,17,18