8'-benzyl-1,8,1'-trimethyl-2,3,8,8aR,2',3',8',8'aR-octahydro-1H-1'H-[3aS,3'aS]bipyrrolo[2,3-b]indole

1,8,1'-trimethyl-1,2,3,8aR,2',3',8',8'aR-octahydro-1'H-[3aS,3'aS]bi[pyrrolo[2,3-b]indolyl]-8-carboxylic acid tert-butyl ester

8'-benzyl-8-methyl-2,3,8,8aR,2',3',8',8'aR-octahydro-1H-1'H-[3aS,3'aS]bipyrrolo[2,3-b]indole

1'-benzyl-3,3'-bis-(2-hydroxyethyl)-1-methyl-1,1',3,3'-tetrahydro-[3S,3'S]biindolyl-2,2'-dione

5-benzyl-(5aR,6aR,11bS,11cS)-bis(2-azidoethyl)-7-methyl-5,5a,6a,7-tetrahydrofuro[2,3-b:5,4-b']diindole