3,5-Dimethyl-1-{2-[(5-methyl-1,3,4-thia­diazol-2-yl)sulfan­yl]acet­yl}-2,6-diphenylpiperidin-4-one

In the title compound, C₂₄H₂₅N₃O₂S₂, the piperidine ring adopts a distorted boat conformation. The phenyl rings subtend angles of 75.6 (1)° and 86.3 (1)° with the mean plane of the piperidine ring. In the crystal, mol­ecules are linked through a network C—H...N hydrogen bonds, forming zigzag chains along [100]. The thia­diazol ring methyl group is disordered over two positions with an occupancy ratio of 0.69 (4):0.31 (4).

2-Chloro-1-(2,4,4-trimethyl-2,3,4,5-tetra­hydro-1H-1,5-benzodiazepin-1-yl)ethanone

In the title compound, C₁₄H₁₉ClN₂O, the diazepine ring adopts a boat conformation. The Cl atom of the chloro­acetyl group is trans to the N atom of the diazepine ring. In the crystal, the mol­ecules form chains running along the diagonal of the ac plane through N—H...O hydrogen bonds.

4-(2-Hy­droxy­phen­yl)-3,5-di­thia­hepta­ne­dioic acid

In the crystal of the title compound, C₁₁H₁₂O₅S₂, mol­ecules are linked by O—H...O hydrogen bonds and C—H...O inter­actions, forming a three-dimensional network.