Pinnatane A from the bark of Walsura pinnata Hassk

Khalit Mohamad; Mahfizah Yusoff; Khalijah Awang; Kartini Ahmad; Seik Weng Ng

doi:10.1107/S1600536809015955

Pinnatane A from the bark of Walsura pinnata Hassk

Acta Crystallogr Sect E Struct Rep Online. 2009 May 20;65(Pt 6):o1317. doi: 10.1107/S1600536809015955.

Authors

Khalit Mohamad¹, Mahfizah Yusoff, Khalijah Awang, Kartini Ahmad, Seik Weng Ng

Affiliation

¹ Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.

Abstract

In the mol-ecule of pinnatane A, C(30)H(48)O(3), isolated from the bark of Walsura pinnata Hassk, the four cyclo-hexane rings adopt chair conformations; the carboxyl and hydr-oxy substituents occupy axial positions. The cyclo-hexene ring is envelope-shaped. Adjacent mol-ecules are linked by O-H⋯O hydrogen bonds into a chain running along the c axis.