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(4aS,6cS)-8-Hydroxy-9-isopropyl-4,4,6c-trimethyl-1,2,3,4,4a,5,6,6c-octahydrophenanthren-3-one

โœ Scribed by Zeroual, Abdellah ;Mazoir, Noureddine ;Maya, Celia M. ;Berraho, Moha ;Auhmani, Aziz ;Benharref, Ahmed


Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
531 KB
Volume
63
Category
Article
ISSN
1600-5368

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In the natural product title compound, C 13 H 15 NO 4 , intramolecular O-Hร ร รO hydrogen bonds help to establish the conformation. ## Related literature For background, see: Jiao et al. (2006); Shen et al. (2006). Experimental Crystal data C 13 H 15 NO 4 M r = 249.26 Orthorhombic, P2 1 2 1 2 1 a

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The title compound, C 15 H 20 O 4 , also known as dihydrohelenalin, is a drug obtained from a Chinese plant. It contains a seven-membered ring in a chair conformation and two fivemembered rings in twist conformations. The crystal packing involves O-Hร ร รO hydrogen bonds. ## Related literature Fo

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The asymmetric unit of the title compound, C~22~H~29~N~3~O~5~S, contains two independent molecules, __A__ and __B__, which differ slightly in the orientation of the ethyl and tosyl groups with respect to the attached pyrrolidine ring, as evidenced by the relevant torsion angles. In both molecules, t

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In the title compound, C~20~H~25~N~3~O~5~S, the pyrrolidine ring is __trans__-fused to the dihydropyran ring. The pyrrolidine ring adopts a twist conformation and the dihydropyran ring is in an envelope conformation. The tosyl group is attached to the pyrrolidine ring in a biaxial position and its b

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The title compound, C~22~H~29~NO~4~S, crystallizes with three independent molecules, __A__, __B__ and __C__, in the asymmetric unit. Each of the three independent molecules adopts a folded conformation, with the phenylsulfonyl group lying over the pyranocyclohexanone ring system, and with the pyrrol