(-)-Fructigenine A 127926-11-8 144606-96-2 2H-Pyrazino(1',2':1,5)pyrrolo92,3-b)indole-1,4(3H,5aH)-dione, 6-acetyl-10b-(1,1-dimethyl-2-propenyl)-6,10b,11,11a-tetrahydro-3-(phenylmethyl)-, (3S,5aR,10bR,11aS)- Fructigenine A Puberulin Rugulosuvine B