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Note | Regular issue | Vol 60, No. 4, 2003, pp.909-915
Published online, 4th February, 2003
DOI: 10.3987/COM-02-9652
Two New Constituents from the Bark of Holarrhena pubescens

Bina Shaheen Siddiqui,* Shahid Bader Usmani, Syed Tahir Ali, Sabira Begum, and Ghazala H. Rizwani

*H. E. J. Research Institute of Chemistry, International Centre for Chemical Sciences, University of Karachi, Karachi 75270, Pakistan

Abstract

Two new compounds, norkurchamide (3,20-dioxo-11α-hydroxycona-1,4-diene) (1) and pubatriol (3-oxo-11α,19,22-trihydroxycona-1,4-diene) (2) have been isolated from the bark of Holarrhena pubescens. Their structures have been established through spectroscopic studies.