The molecule is a fumiquinazoline that consists of imidazoindole and pyrazinoquinazoline units connected by a methylene group. It is a fumiquinazoline, an imidazoindole and a pyrazinoquinazoline.
(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[2,1-b]quinazoline-3,6-dione