Further constituents from the bark of Holarrhena pubescens. |
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| Authors: | B S Siddiqui S B Usmani S T Ali S Begum G H Rizwani |
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| Affiliation: | H.E.J. Research Institute of Chemistry, International Centre for Chemical Sciences, University of Karachi, Karachi 75270, Pakistan. bina@khi.comsats.net.pk |
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| Abstract: | Three compounds, pubadysone [11 alpha-hydroxy-18,20-oxido-3-oxo-pregna-1,4,17(20)-triene] (1), puboestrene [3-acetoxy-17-oxo-1,3,5(10)-estratriene] (2) and pubamide [3,18-dioxo-11 alpha-hydroxycona-1,4-diene] (3), have been isolated from the bark of Holarrhena pubescens. Their structures have been established through spectroscopic studies. |
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