In the title compound, C(13)H(19)NO(2), the piperidine ring has a chair conformation with the exocyclic N-C bond in an equatorial position. In the crystal, mol-ecules are linked head-to-tail by phenol O-H⋯O hydrogen bonds to hy-droxy-methyl-ene O-atom acceptors, forming chains which extend along [100]. These chains form two-dimensional networks lying parallel to (101) through cyclic hydrogen-bo...

Pancreatic carcinoma is a cancer disease with high mortality. Thus, new and efficient treatments for this are badly needed. Curcumin has previously shown promising effects in pancreatic patients; however, natural compound suffers from inadequate efficacy bioavailability, preventing its clinical approval. The synthetic curcuminoid EF24 was developed activities superior to curcumin against variou...

In the title compound, C30H28N4O, the central pyrrolidine ring adopts an envelope conformation with the CH2 C atom as the flap. The quinoxaline and indene ring systems are planar, with r.m.s. deviations of 0.0165 and 0.0181 Å, respectively. The pyrrolidine ring mean plane forms dihedral angles of 88.84 (1) and 86.14 (1)° with the quinoxaline and indene ring systems, respectively. A weak intra-m...

The structure of the title compound {systematic name: 4-[4-(4-chloro-phen-yl)-4-hy-droxy-piperidin-1-yl]-N,N-dimethyl-2,2-di-phenyl-butanamide monohydrate}, C(29)H(33)ClN(2)O(2)·H(2)O, has been redetermined at 170 (2) K. The redetermination is of significantly higher precision than the previous structure determination at room temperature and includes the H-atom coordinates that were not include...

In the title compound, C(20)H(21)N(3)OS(2), the piperidinyl ring has a distorted chair conformation. Weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers. The crystal packing exhibits short inter-molecular S⋯S distances of 3.590 (2) Å.

The revived interest in halogen bonding as a tool in pharmaceutical cocrystals and drug design has indicated that cyano-halogen interactions could play an important role. The crystal structures of four closely related δ-keto esters, which differ only in the substitution at a single C atom (by H, OMe, Cl and Br), are compared, namely ethyl 2-cyano-5-oxo-5-phenyl-3-(piperidin-1-yl)pent-2-enoate, ...