9-(5-Bromo-1H-indol-3-yl)-1,2,3,4,5,6,7,8,9,10-decahydroacridine-1,8-dione dimethyl sulfoxide monosolvate

In the title compound, C21H19BrN2O2·C2H6OS, the indole ring system is essentially planar, with a maximum deviation of 0.050 (3) Å for the non-bridgehead C atom adjacent to the N atom. The two cyclohex-2-enone rings adopt half-chair conformations. An intramolecular C-H⋯O hydrogen bond occurs. The solvent molecule exhibits minor disorder of the S atom [site occupancies = 0.8153 (16) and 0.1847 (18)]. In the crystal, molecules are linked by N-H⋯O hydrogen bonds, forming layers parallel to the bc plane

Ethyl 2,7,7-Trimethyl-4-(1-Methyl-1H-Indol-3-Yl)-5-Oxo-1,4,5,6,7,8-Hexa­Hydro­Quinoline-3-Carboxyl­Ate

In the title mol­ecule, C24H28N2O3, the cyclo­hexene ring is in a sofa conformation and the 1,4-dihydro­pyridine ring is in a slight boat conformation. In the indole ring system, the pyrrole and benzene rings form a dihedral angle of 2.63 (7)°. In the crystal, N—H⋯O hydrogen bonds connect the mol­ecules into C(6) chains parallel to the b axis and pairs of weak C—H⋯O hydrogen bonds link inversion-related chains into a ladder motif through R 2 2(18) rings. A weak intra­molecular C—H⋯O hydrogen bond is also observed.PubMedScopu

Ethyl 4-(5-Bromo-1H-Indol-3-Yl)-2,6,6-Trimethyl-5-Oxo-1,4,5,6,7,8-Hexa­Hydro­Quinoline-3-Carboxyl­Ate

The title compound, C23H25BrN2O3, crystallizes with two independent mol­ecules in the asymmetric unit (Z′ = 2) which differ in the twist of the 5-bromo-1H-indole ring with respect to the plane of the 4-methyl-1,4,5,6,7,8-hexa­hydro­quinoline ring [dihedral angles of 78.55 (9) and 89.70 (8)° in molecules A and B, respectively]. The indole ring is planar in both molecules [maximum deviations = 0.021 (3) and −0.020 (3) Å for the N atom] while the cyclo­hexene ring has adopts a sofa conformation. In the crystal, mol­ecules are linked by pairs of N—H⋯O hydrogen bonds, forming dimers with R 1 2(6) ring motifs. These dimers are connected by N—H⋯O hydrogen bonds, generating chains along [110]. A C—H⋯O contact occurs between the independent mol­ecules.PubMedScopu