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Rac-5-Acetyl-6-hy-droxy-3,6-dimethyl-4-phenyl-4,5,6,7-tetra-hydro-2H-indazole.

ABSTRACT: The title compound, C(17)H(20)N(2)O(2), is chiral but crystallizes in a centrosymmetric space group as a racemate, the relative configuration at the stereogenic centres being 2S*,3R*,4S*. The cyclo-hexane ring adopts a half-chair conformation while the pyrazole ring has an envelope conformation. The crystal packing displays inter-molecular O-H?N and N-H?O hydrogen bonding.

SUBMITTER: Maharramov AM

PROVIDER: S-EPMC3089358 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature

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rac-5-Acetyl-6-hy-droxy-3,6-dimethyl-4-phenyl-4,5,6,7-tetra-hydro-2H-indazole.

Maharramov Abel M AM Ismiyev Arif I AI Rashidov Bahruz A BA Aliyev Ilkin V IV

Acta crystallographica. Section E, Structure reports online 20110413 Pt 5

The title compound, C(17)H(20)N(2)O(2), is chiral but crystallizes in a centrosymmetric space group as a racemate, the relative configuration at the stereogenic centres being 2S*,3R*,4S*. The cyclo-hexane ring adopts a half-chair conformation while the pyrazole ring has an envelope conformation. The crystal packing displays inter-molecular O-H⋯N and N-H⋯O hydrogen bonding. ...[more]

PMID: 21754439

Similar Datasets

rac-5-Acetyl-6-hy-droxy-3,6-dimethyl-4-phenyl-2H-4,5,6,7-tetra-hydro-indazol-1-ium chloride.

Project description:The structure of the title compound, C(17)H(21)N(2)O(2) (+)·Cl(-), is of inter-est with respect to its biological activity. The title compound comprises an organic cation and a chloride anion in the asymmetric unit. The positive charge is localized in a pyrazole moiety forming a pyrazolium cation. The structure displays inter-molecular O-H?Cl and N-H?Cl hydrogen bonding.

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rac-1-[6-Hy-droxy-4-(4-meth-oxy-phen-yl)-3,6-dimethyl-4,5,6,7-tetra-hydro-2H-indazol-5-yl]ethanone.

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9-(3-Bromo-5-chloro-2-hy-droxy-phen-yl)-10-(2-hy-droxy-eth-yl)-3,6-diphenyl-3,4,9,10-tetra-hydro-acridine-1,8(2H,5H)-dione.

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Project description:In the title compound, C(15)H(24)O(4), the six-membered ring shows a distorted chair conformation and the five-membered ring adopts an envelope conformation with the C atom bearing the methyl and OH groups as the flap. In the crystal, O-H?O hydrogen bonds link the mol-ecules into chains running along the a-axis direction.

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4-Hy-droxy-3-[(4-hy-droxy-6-methyl-2-oxo-3,6-dihydro-2H-pyran-3-yl)(3-thien-yl)meth-yl]-6-methyl-3,6-dihydro-2H-pyran-2-one.

Project description:The asymmetric unit of the title compound, C(17)H(14)O(6)S, contains four crystallographically independent mol-ecules in which the pyran-one units are essentially planar, with maximum deviations of 0.016?(2), 0.019?(2), 0.025?(2), 0.014?(2), 0.020?(2), 0.010?(2), 0.003?(2) and 0.012?(2)?Å. One of the thio-phene rings is disordered over two positions, with an occupancy ratio of 0.739?(4):0.261?(4). The dihedral angles between the two pyran-one rings in the independent mol-ecules are 59.42?(8), 48.67?(8), 60.62?(9) and 51.60?(8)°. In the crystal, mol-ecules are linked through inter-molecular O-H?O and C-H?O hydrogen bonds, forming a three-dimensional network.

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Poly[(?(3)-rac-5-eth-oxy-carbonyl-6-hy-droxy-6-methyl-4-phenyl-4,5,6,7-tetra-hydro-benzo[c]isoxazol-3-olato)potassium].

Project description:The title compound, [K(C(17)H(18)NO(5))](n), reveals the relative configuration (4R*,5S*,6R*) whereas its crystals are racemic. The cyclo-hexane ring adopts a half-chair conformation and the isoxazole ring has an envelope conformation. The ethyl fragment of the eth-oxy-carbonyl group at position 5 is disordered in a 0.547?(7):0.453?(7) ratio. The K(+) ion is surrounded by five O atoms from three ligands at distances ranging from 2.606?(2) to 3.028?(2)?Å, generating a three-dimensional network. The crystal packing displays inter-molecular O-H?N and O-H?O hydrogen bonds in which the hy-droxy group acts as a double proton donor.

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3-(5-Chloro-naphthalene-1-sulfonamido)-2-(2-hy-droxy-eth-yl)-4,5,6,7-tetra-hydro-2H-pyrazolo-[4,3-c]pyridin-5-ium chloride.

Project description:In the cation of the title compound, C(18)H(20)ClN(4)O(3)S(+)·Cl(-), the tetra-hydro-pyridinium ring assumes a half-chair conformation. The dihedral angle between the pyrazole ring and the naphthalene ring system is 75.19?(6)°. In the crystal, ions are linked into a three-dimensional network by N-H?O, N-H?Cl and O-H?Cl hydrogen bonds and weak ?-? stacking inter-actions with centroid-centroid distances of 3.608?(2)?Å.

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