3,9-Dimethyl-2,3-dihydro­spiro­[carb­az­ole-1,2′-[1,3]dithio­lan]-4(9H)-one

The title compound, C₁₆H₁₇NOS₂, consists of a carbazole skeleton with methyl and dithiol­ane groups as substituents. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, forming a dihedral angle of 1.02 (11)°. The cyclo­hexenone ring has a twisted conformation, while the dithiol­ane ring adopts an envelope conformation with one of the CH₂ C atoms at the flap. In the crystal, weak C—H...O hydrogen bonds link the mol­ecules into supra­molecular chains nearly parallel to the c axis. These hydrogen bonds together with weak C—H...π inter­actions link the molecules into a three-dimensional supramolecular network.

2-{4-Methyl-N-[(2,3,4,9-tetra­hydro-1H-carbazol-3-yl)meth­yl]benzene­sulfon­amido}­ethyl 4-methyl­benzene­sulfonate

In the title compound, C₂₉H₃₂N₂O₅S₂, the indole ring system is nearly planar, with a maximum deviation of 0.013 (2) Å, and the cyclo­hexenone ring has an envelope conformation with the methine C atom as the flap. The two methyl­benzene 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 mol­ecules into a chain running along the a-axis direction, and weak C—H...O hydrogen bonds and C—H...π inter­actions are observed between the chains.