(1S,4R)-4-[[(2S,3aS,4S)-4-hydroxy-2-methyl-1-oxo-3,3a-dihydro-2H-imidazo[1,2-a]indol-4-yl]methyl]-1-methyl-2,4-dihydro-1H-pyrazino[5,4-b]quinazoline-3,6-dione (1S,4R)-4-[[(2S,3aS,4S)-4-hydroxy-1-keto-2-methyl-3,3a-dihydro-2H-imidazo[1,2-a]indol-4-yl]methyl]-1-methyl-2,4-dihydro-1H-pyrazino[5,4-b]quinazoline-3,6-quinone