Ethyl 4-oxo-2,3,4,9-tetrahydro-1H-carbazole-3-carboxylate

2-{N-[(2,3,4,9-Tetrahydro-1H-carbazol-3-yl)methyl]methylsulfonamido}ethyl methanesulfonate

In the title compound, C₁₇H₂₄N₂O₅S₂, the indole ring system is nearly planar [maximum deviation = 0.032 (1) Å] and the cyclo­hexene ring has a half-chair conformation. In the crystal, N—H⋯O hydrogen bonds link the mol­ecules into a chain running along the b-axis direction. Weak C—H⋯O hydrogen bonds and weak C—H⋯π inter­actions are observed between the chains.

2-{4-Methyl-N-[(2,3,4,9-tetra-hydro-1H-carbazol-3-yl)meth-yl]benzene-sulfon-amido}-ethyl 4-methyl-benzene-sulfonate

In the title compound, C29H32N2O5S2, the indole ring system is nearly planar, with a maximum deviation of 0.013 (2) Å, and the cyclo-hexenone ring has an envelope conformation with the methine C atom as the flap. The two methyl-benzene rings are approximately perpendicular to each other, making a dihedral angle of 89.09 (8)°. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into a chain running along the a-axis direction, and weak C-H⋯O hydrogen bonds and C-H⋯π inter-actions are observed between the chains.