2,3,5,6,7,8-hexahydro-1H-azonino[5,4-b]indol-4-one

3-benzyl-1,2,5,6,7,8-hexahydroazonino[5,4-b]indol-4-one

2-chloro-1-(2,4,5,6,7,8-hexahydro-1H-azonino[5,4-b]indol-3-yl)butan-1-one

3-benzoyl-1,2,5,6,7,8-hexahydroazonino[5,4-b]indol-4-one

3-(6-oxo-8,9-dihydro-7H-pyrido[1,2-a]indol-10-yl)propanoic acid