The two phenyl rings of the biphenyl unit of the title compound, C(18)H(13)NO(3), are almost coplanar [dihedral angle 6.70 (9)°]. The nitro-phenyl ring, on the other hand, is significantly twisted out of the plane of the these two rings, making dihedral angles of 68.83 (4)° with the middle ring and 62.86 (4)° with the end ring. The nitro group is twisted by 12.1 (2)° out of the plane of the phe...

In the title compound, C22H17NO3S, the sulfonyl-bound phenyl ring is almost orthogonal to the indole ring system, making a dihedral angle of 84.89 (7)°. The carbonyl-bound phenyl ring forms a dihedral angle of 57.32 (5)° with the indole ring system. The two phenyl rings are inclined at 52.68 (7)°. The S atom has a distorted tetra-hedral configuration. In the crystal, weak C-H⋯O inter-actions li...

In the title mol-ecule, C(30)H(23)N(5)O(3)S, the 1,2,4-triazole ring is approximately planar (r.m.s. deviation = 0.006 Å), and forms dihedral angles of 66.0 (2), 65.1 (2), 30.1 (2) and 28.1 (2)° with the four phenyl rings. The phenyl ring of the benzyl group directly attached to the triazole ring is almost perpendicular to the nitro-phenyl ring, making a dihedral angle of 84.9 (2)°.

In the title compound, C(32)H(32)N(2)O(3)S, the pyrrolidine ring adopts an envelope conformation with the methine C atom nearest to the phenyl ring as the flap atom. The tetra-hydro-pyridine ring has a half-chair conformation. The two rings are trans-fused. The phenyl ring bound to the tetra-hydro-pyridine is oriented almost perpendicular [dihedral angle = 86.35 (10)°] to the fused benzene ring...

In the title compound, C(25)H(13)Cl(2)F(4)N(3), there are four planar systems, viz. three benzene rings and a pyrazolo-[1,5-a]pyrim-idine system [r.m.s. deviation = 0.002 Å]. The dihedral angle between the dichloro-phenyl ring and the unsubstituted phenyl ring is 69.95 (5)°, while that between the fluoro-phenyl ring and the unsubstituted phenyl ring is 7.97 (10)°. The crystal packing is dominat...

In the title compound, C(24)H(16)O(2)S, the O atom and the phenyl group of the phenyl-sulfinyl substituent lie on opposite sides of the plane of the naphthofuran fragment; the phenyl ring is almost perpendicular to this plane [81.54 (5)°]. The 2-phenyl ring is rotated out of the naphthofuran plane, making a dihedral angle of 18.2 (1)°.

In the mol-ecule of the title compound, C(19)H(22)N(2)O(2), the pyrazolidinone ring has an envelope conformation, with the C atom attached to the 4-methoxy-phenyl ring displaced by 0.354 (3) Å from the plane of the other ring atoms. The 4-iso-propyl-phenyl ring is oriented with respect to the 4-meth-oxy-phenyl ring at a dihedral angle of 88.94 (3)°. Intra-molecular C-H⋯N hydrogen bonds result i...

In the title compound, C(23)H(22)N(4)O, the pyrazole ring makes dihedral angles of 45.57 (11)° with the attached phenyl ring, and 83.98 (10) and 67.85 (10) °, respectively, with the other phenyl ring and the pyridyl ring. The pyridyl ring makes a dihedral angle of 80.15 (10)° with the adjacent phenyl ring. In the crystal, N-H⋯O hydrogen bonds supplemented by weak C-H⋯O hydrogen bonds link the m...

The structural requirements for the inhibitor activity of various furan carboxanilide derivatives against succinate dehydrogenase complex (SDC) activity in mitochondria of either wild or mutant strains of Ustilago maydis were investigated with the aid of Hansch QSAR analysis. It has been found that the inhibitor activity against both types of enzymes is best related to the ??? or ??M of th...

The crystal structure of the title compound, C(20)H(15)FN(2)O(2), contains two crystallographically independent mol-ecules, which are related by a pseudo-inversion center and linked into dimers via inter-molecular N-H⋯N hydrogen bonds. The 4-fluoro-phenyl ring of mol-ecule A makes dihedral angles of 17.17 (16) and 62.25 (15)°, respectively, with the phenyl and pyridine rings. The 4-fluoro-pheny...