Synonyms: 2H-Pyrazino[2,1-b]quinazoline-3,6(1H,4H)-dione,1-methyl-4-[(2,3,9,9a-tetrahydro-9-hydroxy-2-methyl-3-oxo-1H-imidazo[1,2-a]indol-9-yl)methyl]-,[2S-[2a,9b,9(1R*,4S*),9ab]]-; 1H-Imidazo[1,2-a]indole,2H-pyrazino[2,1-b]quinazoline-3,6(1H,4H)-dione deriv.; (-)-Fumiquinazoline A;Fumiquinazoline A