The seven-membered ring in the title compound, C(20)H(19)N(3)O(3), adopts a boat conformation with the two phenyl-ene C atoms representing the stern and the methyl-ene C atom the prow. The dihedral angle between the best plane through the seven-membered ring (r.m.s deviation = 0.358 Å) and the phenyl substituent is 55.8 (1)°. The two rings at either ends of the ethyl chain are staggered [N-CH(2...

In the title compound, C(19)H(15)N(3), the benzyl group is almost perpendicular to the triazole ring [dihedral angle = 80.64 (8)°], while the napthyl group makes an angle of 30.27 (12)° with the plane of the triazole ring. This conformation is different from the 1-benzyl-4-phenyl-1H-1,2,3-triazole analogue, which has the benzyl ring system at an angle of 87.94° and the phenyl group at an angle ...

The title compound, C(29)H(17)FN(4)O(2), may be used as a new precursor for obtaining bioactive mol-ecules. There are two crystallographically independent mol-ecules in the asymmetric unit. The phenyl ring, 4-fluoro-phenyl ring and 2-naphth-yloxy ring are twisted with respect to the pyrrolopyrimidine ring by 52.30 (11)/49.05 (11), 80.94 (10)/88.36 (10) and 60.58 (7)/83.76 (7)°, respectively. Th...

The title compound, C(20)H(18)N(2)O(4), is a chalcone derivative of pyrazole. The pyrazole ring is inclined at a dihedral angle of 19.29 (12)° to the methoxy-phenyl ring mean plane, and by 1.19 (13)° to the phenyl ring. The mol-ecular structure is stabilized by an intra-molecular O-H⋯O hydrogen bond, making an almost planar (r.m.s. deviation = 0.0243 Å) six membered ring.

In the title compound, C(25)H(16)N(2)O(8), the dihedral angle between the naphthalene ring system and the benzene ring of the nitro-phenyl ketone unit is 82.64 (7)°. The bridging ester O-C(=O)-C plane makes dihedral angles of 42.12 (8) and 11.47 (9)°, respectively, with the naphthalene ring system and the benzene ring of the nitro-phenyl ester unit. In the crystal, two types of weak inter-molec...

In the mol-ecule of the title compound, C(18)H(13)Cl(2)N(3)O(2)S(2), the thia-zolidinone ring has an envelope conformation with the S atom displaced by 0.394 (3) Å from the plane of the other ring atoms. The thia-diazole ring is oriented at a dihedral angle of 7.40 (4)° with respect to the 4-methoxy-phenyl ring. Intra-molecular C-H⋯S, C-H⋯N and C-H⋯Cl hydrogen bonds result in the formation of t...

In the title compound, C(10)H(8)N(2)O(2)S, the planes of the aromatic rings are oriented at a dihedral angle of 66.69 (3)°. In the crystal structure, inter-molecular N-H⋯N and C-H⋯O inter-actions link the mol-ecules into a two-dimensional network, forming R(2) (2)(8) ring motifs. π-π contacts between the thia-zole rings [centroid-centroid distance = 3.535 (1) Å] may further stabilize the struct...

In the mol-ecule of the title benzohydrazide derivative, C(17)H(18)N(2)O(4), the dihedral angle between the benzene rings is 6.86 (11)°. The meth-oxy group of the 4-meth-oxy-phenyl fragment deviates slightly [C(methyl)-O-C-C = 10.0 (4)°] with respect to the benzene ring, whereas the eth-oxy group of the 3-eth-oxy-4-hy-droxy-phenyl fragment is is almost coplanar [C-O-C-C(methyl) = 178.5 (2)°]. I...

In the title compound, C(25)H(15)BrN(4), the two pyridine rings lie in a common plane [r.m.s. deviation = 0.023 (2) Å], whereas the bromo-phenyl and indole rings are twisted away from this plane by 52.82 (12) and 28.02 (10)°, respectively. The crystal structure is stabilized by inter-molecular N-H⋯N inter-actions.

The title compound, C(18)H(18)FNO(3), consists of three individually planar subunits, namely two substituted benzene rings and one amino-acrylate group. The dihedral angle between the two benzene rings is 47.48 (8)°. The amino-acrylate group forms dihedral angles of 57.95 (7) and 11.27 (6)° with the methoxy-phenyl and fluorophenyl rings, respectively.