(2'S-(2'alpha,9'alpha(R*),9'abeta))-1',3,4,9'a-Tetrahydro-1'-hydroxy-2'-methyl-4-(2-(2-methyl-1-oxopropyl)-4-oxo-3(4H)-quinazolinyl)spiro(furan-2(5H),9'-(9H)imidazo(1,2-a)indole)-3',5(2'H)-dione 55387-46-7 Nortryptoquivalone Spiro(furan-2(5H),9'-(9H)imidazo(1,2-a)indole)-3',5(2'H)-dione, 1',3,4,9'a-tetrahydro-1'-hydroxy-2'-methyl-4-(2-(2-methyl-1-oxopropytl)-4-oxo-3(4H)-quinazolinyl)-, (2S,2'S,4R,9'aS)- Tryptoquivaline B Tryptoquivalone