IUCrData (Aug 2017)

(10R,13R)-17-(6-Hydroxy-5-methylheptan-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol hemihydrate: a bioactive steroid isolated from the Indian herb Artemisia reticulata

  • A. K. Bauri,
  • Sabine Foro,
  • Nhu Quynh Nguyen Do

DOI
https://doi.org/10.1107/S2414314617010860
Journal volume & issue
Vol. 2, no. 8
p. x171086

Abstract

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The title tetracyclic steroidal compound, C27H46O2·0.5H2O, crystallized as a monohydrate with two independent molecules (1 and 2) in the asymmetric unit. In both molecules, the conformations of the three cyclohexane rings (A, B and C) are chair, half-chair and chair, respectively. The fourth ring, D, has a twisted conformation on the bond linking the D and C rings. The crystal structure is stabilized by hydrogen bonding with the two independent molecules being linked through the solvent water molecule via various O—H...O hydrogen bonds, forming layers parallel to (-101).

Keywords