Acta Cryst. (2003). E59, o1751-o1753  [ doi:10.1107/S1600536803022499 ]

4,4,14-Trimethyl-3,20-bis(methylamino)-9,19-cyclo-5-pregnan-16-ol

M. I. Choudhary, S. Ali, S. Anjum, M. Ahmed, A. A. Rahman, H.-K. Fun and Atta-ur-Rahman

Abstract: The title compound, C₂₆H₄₆N₂O, also known as cyclovirobuxine D, has for the first time been isolated from Buxus papilosa. It has a steroid nucleus in trans/cis/trans configuration. Two of the three cyclohexane rings adopt half-chair conformations and the third ring, with an equatorially attached methylamino substituent, is in a chair conformation. The cyclopentane ring has a half-chair conformation and the N-methylaminoethane group is equatorially attached to it. N-HO and C-HN interactions are observed in the molecular structure and the crystal structure is stabilized by van der Waals interactions.

Online 23 October 2003

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