6-(5-chloropyridin-2-yl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione;6-(5-Chloro-2-pyridinyl)-5,7-dioxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine;6-(5-Chloro-2-pyridinyl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione
6-(5-chloropyridin-2-yl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione;6-(5-Chloro-2-pyridinyl)-5,7-dioxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine;6-(5-Chloro-2-pyridinyl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione