[1,2-a]indole
(2S,3R,10R,10aS)-10,10a-dimethyl-1,2,3,4,10,10a-hexahydro-2,10-epithiopyrimido[1,2-a]indole-3-carbonitrile
(3ar,4s,4as,8ar)-2-(2-chloroethyl)-4-hydroxy-3-methyl-4,4a,5,6,8,8a-hexahydro-3ah-pyrrolo[1,2-a]indole-1,7-dione
(5bS,8R,13bS)-2,4,7,11,13-pentabromo-8-methyl-7,8-dihydro-6H-5,8-methanoazeto[1',2':1,2]imidazo[4',5':4,5]azepino[3,2-b]pyrrolo[1,2-a]indole-15,17(14H)-dione
(6-amino-1,5-dimethyl-4,7-dioxo-1,1a,2,4,7,8,8a,8b-octahydroazireno[2',3':3,4]pyrrolo[1,2-a]indol-8-yl)methyl carbamate