In the title compound, C(26)H(20)ClNO(2), the quinoline ring system and the methoxy-phenyl ring form dihedral angles of 69.97 (6) and 22.10 (10)°, respectively, with the propenone linkage. The 4-phenyl ring substituent on the quinoline ring system is oriented at a dihedral angle of 66.47 (3)°. In the crystal, mol-ecules exist as C-H⋯O hydrogen-bonded dimers. The structure is further stabilized ...

The title salt, C(10)H(7)N(2) (+)·HSO(4) (-), is formed by the transfer of a proton from H(2)SO(4) to the N atom of 2-cyano-quinoline during crystallization. The quinoline ring system is approximately planar with a maximum deviation of 0.013 (3) Å. In the crystal, the cations are linked to the anions via inter-molecular N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds, forming a layered network.

In the title compound, C(16)H(12)BrN(3)O(2)S, the dihedral angle between the planes of the almost planar (r.m.s. deviation = 0.0263 Å) quinoline group and the bromo-phenyl group is 87.4 (1)°. The torsion angle of the central S-N-N-C bridge is 144.8 (2)°. The amino group has an intra-molecular contact to the quinoline N atom. The structure is stabilized by one N-H⋯O and two C-H⋯O inter-molecular...

In the title compound, C(20)H(15)F(6)N(3)O(2), the quinoline ring system is almost coplanar with the benzene ring; the dihedral angle between the two planes is 2.31 (8)°. The crystal structure displays an inter-molecular C-H⋯F hydrogen bond. In addition, a weak π-π inter-action is observed between the unfused benzene ring and the benzene ring of quinoline, with a centroid-centroid distance of 3...

In the title compound, C(15)H(12)ClN(3)O, the quinoline ring system is essentially planar, with a maximum deviation of 0.017 (1) Å. The crystal packing is stabilized by π-π stacking inter-actions between the quinoline rings of adjacent mol-ecule, with a centroid-centroid distance of 3.5913 (8) Å. A weak C-H⋯π contact is also observed between mol-ecules.

A series of novel 6-(pyrazolylmethyl)-4-oxo-4-quinoline-3-carboxylic acid derivatives bearing different substituents on the N-position of quinoline ring were designed and synthesized as potential HIV-1 integrase (IN) inhibitors, based on the structurally related GS-9137 scaffold. The structures of all new compounds were confirmed by 1H-NMR, 13C-NMR and ESI (or HRMS) spectra. Detailed synthetic ...

In the title mol-ecule, C24H20N2O5, the quinoline and quinolinone moieties are practically perpendicular to each other, forming a dihedral angle of 89.06 (3)°. In the crystal, each moiety forms coplanar π-stacked couples with the respective inversion equivalents. The quinolinone moieties overlap with their benzene rings with a centroid-centroid separation of 3.641 (2) Å, whereas the quinoline m...

Laquinimod, a second-generation quinoline-3-carboxamide, is being developed by Active Biotech AB and Teva Pharmaceutical Industries Ltd for the treatment for relapsing-remitting multiple sclerosis (RRMS). Laquinimod has demonstrated significant activity in suppressing experimental autoimmune encephalomyelitis, an animal model of RRMS. In phase I and II clinical trials, the drug was well tolerat...

The crystal structures of di-chlorido-palladium(II), -platinum(II) and -rhodium(III) complexes containing 8-(di-phenyl-phosphan-yl)quinoline, (SP-4)-[PdCl2(C21H16NP)], (1) [systematic name: di-chlor-ido-(8-di-phenyl-phosphanyl-quinoline)-palladium(II)], (SP-4)-[PtCl2(C21H16NP)]·CH2Cl2, (2) [systematic name: di-chlorido-(8-di-phenyl-phos-phanyl-quinoline)-platinum(II) dichlorometh-ane monosolvat...

In the title compound, C(18)H(14)N(2)O(3), the quinoline ring system is almost planar [maximum deviation = 0.013 (2) Å] and forms a dihedral angle of 60.36 (7)° with the benzene ring. The nitro group is slightly twisted from the attached quinoline ring system, forming a dihedral angle of 9.06 (19)°. In the crystal packing, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains pro...