Acta Crystallographica Section E
Structure Reports Online
Volume 66, Part 7 (July 2010)
14-Hydroxy-8,14-secogammacera-7-ene-3,21-dione from the bark of Lansium domesticum Corr.
U. Supratman, T. Mayanti, K. Awang, M. R. Mukhtar and S. W. Ng
Abstract: In the title compound (kokosanolide B), C30H48O3, the hexahydro- and octahydronaphthalen-2-one ring systems are connected through an ethylene fragment, with a C-CH2-CH2-C torsion angle of 176.2 (2)°. The cyclohexene ring adopts a half-chair conformation, while the other six-membered rings adopt distorted chair conformations. In the crystal, adjacent molecules are linked into a zigzag chain along the b axis by O-H
O hydrogen bonds involving the hydroxy and carbonyl groups.
O hydrogen bonds involving the hydroxy and carbonyl groups.
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