13 research outputs found
1-Ethyl-4-hydroxy-9-azatricyclo[7.4.1.02,7]tetradeca-2,4,6-trien-8-one
In the molecule of the title compound, C15H19NO2, the six-membered dihydropyridinone ring assumes a screw-boat conformation. In the crystal structure, molecules are linked via O—H⋯O hydrogen bonding between hydroxy and carbonyl groups, forming supramolecular chains along the a axis
3-[(3S)-3-Ethyl-1-methylazepan-3-yl]phenyl N-(4-fluorophenyl)carbamate
The asymmetric unit of the title compound, C22H27FN2O2, a (−)-S-meptazinol derivative, contains two molecules. The azepane ring adopts a similar twist chair form in both molecules, while the dihedral angles between the two benzene rings are 88.17 (14) and 89.93 (14)° in the two molecules. The absolute configuration of the molecule was determined from the synthetic starting material. The crystal structure is stabilized by classical intermolecular N—H⋯O hydrogen bonds
2-Methyl-1,2,3,4-tetrahydroisoquinolin-6-yl N-phenylcarbamate
In the molecule of the title compound, C17H18N2O2, the piperidine ring adopts a half-chair form. The two benzene rings are individually planar and make a dihedral angle of 53.90°. The crystal structure is stabilized by intermolecular N—H⋯N hydrogen bonds and π–π stacking interactions (centroid–centroid distance = 3.962 Å)
(3S,4R)-3-Ethyl-4-hydroxy-3-(3-methoxyphenyl)-1-methylazepanium (2R,3R)-2,3-bis(benzoyloxy)-3-carboxypropionate
The crystal structure of the title compound, C16H26NO2
+·C18H13O8
−, is stabilized by an extensive network of classical N—H⋯O and O—H⋯O hydrogen bonding. The crystal structure also shows an ammonium-driven diastereoisomerism
(E)-6-Methoxy-9-methyl-1,2,3,4-tetrahydro-9H-carbazol-4-one oxime
The title compound, C14H16N2O2, is dimerized by inversion-related intermolecular O—H⋯O and O—H⋯N hydrogen bonding. There is also an intramolecular C—H⋯N bond, resulting in a six-membered ring
(3S,4S)-3-Ethyl-4-hydroxy-3-(3-methoxyphenyl)-1-methylazepan-1-ium d-tartrate dihydrate
In the title compound, C16H26NO2
+·C4H5O6
−·2H2O, a meptazinol derivative, three C atoms of the azepane ring are disordered over two positions, with site-occupancy factors of 0.80 and 0.20; the major disorder component adopts a twist-chair conformation, while the minor component has a chair conformation. The benzene ring is axially substituted on the heterocyclic ring, resulting in a folded conformation of the cation. The absolute configuration was determined with reference to d-tartaric acid. The crystal structure is stabilized by an extensive network of intra- and intermolecular O—H⋯O hydrogen bonds