Methyl 2-(p-toluene-sulfonamido)benzoate.

The title compound, C(15)H(15)NO(4)S, was prepared by simple condensation of methyl 2-amino-benzoate and 4-methyl-benzene-sulfonyl chloride. The dihedral angle between the benzene rings is 84.36 (6)°. The mol-ecular structure is stabilized by an intra-molecular N-H⋯O hydrogen-bonding inter-action involving the carbonyl group as acceptor, generating an S(6) graph-set motif.

2,4-Dichloro-6-((1R)-1-{[(R)-(2-chloro-phen-yl)(cyclo-pent-yl)meth-yl]amino}eth-yl)phenol.

In the title compound, C(20)H(22)Cl(3)NO, the five-membered ring adopts an envelope conformation, and the two benzene rings are oriented at a dihedral angle of 40.44 (9)°. Intra-molecular O-H⋯N and N-H⋯Cl hydrogen bonding is present. In the crystal, the mol-ecules are linked via weak inter-molecular C-H⋯O hydrogen bonds.

N-[(R)-(2-Chloro-phen-yl)(cyclo-pent-yl)meth-yl]-N-[(R)-(2-hydr-oxy-5-methyl-phen-yl)(phen-yl)meth-yl]acetamide.

In the title compound, C(28)H(30)ClNO(2), the cyclo-pentane ring adopts an envelope conformation. In the crystal structure, mol-ecules are linked by inter-molecular O-H⋯O hydrogen bonds, forming chains running along the a axis.

4-Methyl-2-[(E)-phen-yl(1,2,3,4-tetra-hydro-1-naphthyl-imino)meth-yl]phenol.

In the crystal structure of the title compound, C(24)H(23)NO, the phenyl ring makes dihedral angles of 81.53 (11) and 75.35 (12)°, respectively, with the methyl-substituted and the fused benzene rings. The dihedral angle between the two benzene rings is 71.10 (10)°. There is an intra-molecular O-H⋯N hydrogen bond.

4-Chloro-2-((1R)-1-{[(R)-(2-chloro-phen-yl)(cyclo-pent-yl)meth-yl]amino}eth-yl)phenol.

The title compound, C(20)H(23)Cl(2)NO, was prepared by condensation of (R)-1-(2-chloro-phen-yl)-1-cyclo-pentyl-methanamine with 1-(5-chloro-2-hydroxy-phen-yl)ethanone, resulting in the formation of a new chiral center. The structural analysis confirms the absolute configuration of the title compound and the formation of the (R,R) diastereoisomer. There is an intra-molecular O-H⋯N hydrogen bond which stabilizes the conformation of the mol-ecule. The mol-ecules are linked to each other through weak C-H⋯π inter-actions.

4-Chloro-2-((1R)-1-{[(R)-(2-chlorophen-yl)(cyclo-pent-yl)meth-yl]amino}prop-yl)phenol.

In the title compound, C(21)H(25)Cl(2)NO, the dihedral angle between the two benzene rings is 33.18 (11)°. The five-membered ring adopts an envelope conformation. There is an intra-molecular O-H⋯N hydrogen bond. In the crystal, mol-ecules are linked by weak N-H⋯Cl hydrogen bonds, forming a helical chain along the c axis.