Further constituents from the bark of Holarrhena pubescens.
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.
Siddiqui
B S
BS
H.E.J. Research Institute of Chemistry, International Centre for Chemical Sciences, University of Karachi, Karachi 75270, Pakistan. bina@khi.comsats.net.pk
Usmani
S B
SB
Ali
S T
ST
Begum
S
S
Rizwani
G H
GH
D029062:Apocynaceae / Q000737:chemistry*; D004963:Estrenes / Q000737:chemistry* / Q000302:isolation & purification; D010840:Phytosterols / Q000737:chemistry* / Q000302:isolation & purification; D024301:Plant Bark / Q000737:chemistry*; D011278:Pregnanes / Q000737:chemistry* / Q000302:isolation & purification
D004963:Estrenes; D010840:Phytosterols; D011278:Pregnanes; C447006:pubadysone; C447008:pubamide; C447007:puboestrene