Benzyl 2-benzyl-4-[(3aS,7aR)-2,3,3a,4,5,6,7,7a-octahydro-1H-isoindol-2-yl]-4-oxobutanoate
نویسندگان
چکیده
In the title compound, C(26)H(31)NO(3), the octa-hydro-1H-isoindole ring is not planar and the two rings are twisted with a C-C-C-C torsion angle of 73.6 (4)°. The six-membered ring has a chair conformation while the five-membered ring has an envelope conformation on the C-atom in position 7a. The H atoms in the 3a- and 7a-psitions are cis and the H-C-C-H torsion angle is 42.36°.
منابع مشابه
4,4′-Dichloro-2,2′-[(3aR,7aR/3aS,7aS)-2,3,3a,4,5,6,7,7a-octahydro-1H-1,3-benzimidazole-1,3-diyl)bis(methylene)]diphenol
Mol-ecules of the the title compound, C(21)H(24)Cl(2)N(2)O(2), are located on a twofold rotation axis, which passes through the C atom linking the two N atoms. Two intra-molecular O-H⋯N hydrogen bonds were observed. In the crystal, non-classical inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains along the a axis. The crystal studied was a racemic twin.
متن کامل4,4′-Dichloro-3,3′,5,5′-tetramethyl-2,2′-[(3aR,7aR/3aS,7aS)-2,3,3a,4,5,6,7,7a-octahydro-1H-1,3-benzimidazole-1,3-diyl)bis(methylene)]diphenol
In the title compound, C(25)H(32)Cl(2)N(2)O(2), there are two intra-molecular O-H⋯ N hydrogen-bonding inter-actions between the hy-droxy groups on the aromatic rings and the two N atoms of the heterocyclic group. The cyclo-hexane ring adopts a chair conformation and the imidazolidine unit to which it is fused has a twisted envelope conformation. The asymmetric unit comprises one half-mol-ecule ...
متن کاملCrystal structure of (1R,3aR,7aR)-1-{(S)-1-[(2R,5S)-5-(3-hydroxypentan-3-yl)tetrahydrofuran-2-yl]ethyl}-7a-methyl-2,3,3a,4,5,6,7,7a-octahydro-1H-inden-4-one
The title compound, C21H36O3, contains an oxolane ring, and six defined stereocentres and may serve as a useful synthon for the synthesis of calcitriol analogues. The configurations of the chiral C atoms of the side chain were unambiguously established in the refinement. In the crystal, C-H⋯O and extremely weak O-H⋯O hydrogen bonds arising from the sterically hindered alcohol group link the mol...
متن کامل(1S,3aS,4S,7aS)-Ethyl 1-benzyl-2-(4-methoxybenzyl)-6,7-dimethyl-3-oxo-2,3,3a,4,5,7a-hexahydro-1H-isoindole-4-carboxylate dichloromethane monosolvate
In the title compound, C(28)H(33)NO(4)·CH(2)Cl(2), the pyrrolidone ring adopts a twisted envelope conformation and the cyclo-hexene has a half-chair conformation. In the crystal, weak C-H⋯O hydrogen bonds link the components into chains along [100].
متن کامل4,4′-Dibromo-2,2′-{[(3aS,7aS)-2,3,3a,4,5,6,7,7a-octahydro-1H-1,3-benzimidazole-1,3-diyl]bis(methylidene)}diphenol
The cyclo-hexane ring in the title compound, C(21)H(24)Br(2)N(2)O(2), adopts a chair conformation and the five-membered ring to which it is fused has a twisted envelope conformation. The asymmetric unit contains one half-mol-ecule, which is related to the other half by a twofold rotation axis. The two N atoms of the five-membered ring are linked to the hy-droxy groups by intra-molecular O-H⋯N h...
متن کامل