5H-Benzothiazolo[3,2-a][1,8]naphthyridine-6-carboxamide, 2-[(3aR,6aS)-hexahydro-5-methylpyrrolo[3,4-c]pyrrol-2(1H)-yl]-N-[(5-methyl-2-pyrazinyl)methyl]-5-oxo-, rel- [ 1639357-93-9 ]