ABSTRACT
In the racemic title compound, C(14)H(17)NO(6), the plane of the ester group of the methyl hexa-noate side chain makes a dihedral angle of 80.0â (2)° with the benzene ring, while the nitro group is approximately coplanar with the benzene ring [dihedral angle = 10.3â (2)°]. In the crystal, mol-ecules form weak aromatic C-Hâ¯O(nitro) hydrogen-bonding inter-actions, giving inversion dimers [graph set R(2) (2)(8)].
ABSTRACT
In the title compound, C(16)H(24)N(2), the aliphatic amine substituent is rotated almost orthogonally [C-C-C-C torsion angle = 75.7â (3)°] out of the plane of the indole unit. The amine N atom has a pyramidal configuration deviating by 0.380â (3)â Å from the plane of the adjacent C atoms. All of the aliphatic groups are in extended transoid conformations. In the crystal, mol-ecules form chains along the a axis via N-Hâ¯N hydrogen bonds.
ABSTRACT
In the title compound, C(24)H(30)N(6)O(5), the cyclo-hexyl ring adopts a chair conformation, while the remainder of the mol-ecule adopts a U-shape. The dihedral angles between the pyridine ring and the pendant pyrimidine rings are 69.04â (12) and 75.99â (9)°. The two pyrimidine rings, however, are nearly parallel to one another, with a dihedral angle of 8.56â (15)° between them. They are also involved in an intra-molecular π-π stacking inter-action with a distance of 3.6627â (18)â Å between the ring centroids. In the crystal, C-Hâ¯O contacts link the mol-ecules into chains along the b axis.
ABSTRACT
In the title compound, C(13)H(12)N(2)O(4), the dihedral angle between the benzene and pyrimidine rings is 55.57â (13)°. The carbonyl group and the two methoxyl groups are approximately coplanar with the benzene ring and pyrimidine ring; the C-C-C-O, C-O-C-N and C-O-C-C torsion angles being -6.1â (5), -4.8â (4) and 179.9â (3)°, respectively. In the crystal, mol-ecules are linked via C-Hâ¯O inter-actions, forming chains propagating along [110].
ABSTRACT
In the title compound, C(11)H(8)Cl(2)N(2)O(2)·H(2)O, the dihedral angle between the benzene and isoxazole rings is 59.10â (7)°. In the crystal, the components are linked by N-Hâ¯O and O-Hâ¯O hydrogen bonds into a three-dimensional network. The crystal structure is further stabilized by π-π stacking inter-actions [centroid-centroid distance = 3.804â (2)â Å].