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Type: Artigo de periódico
Title: Steroids and triterpenes from Eleocharis acutangula and E-sellowiana (Cyperaceae)
Author: Amaral, MDC
Faria, AD
Magalhaes, AF
Magalhaes, EG
Ruiz, ALTG
Abstract: From the hexane extract of the underground parts of Eleocharis acutangula (Roxb.) Schult., lup-20(29)ene-3beta,16beta-diol and a mixture of campesterol, stigmasterol and sitosterol were isolated. The hexane extracts of aerial and underground parts of E. sellowiana Kunth furnished two new substances, namely neohop-13(18)en-3alpha-ol and stigmast-22-en-3beta,6beta,9alpha-triol, together with a mixture of steroids, betulinic acid, stigmast-4-en-6beta-ol-3-one and fern-9(11)-en-3alpha-ol. The molecular structures were determined by spectral analysis (1D- and 2D-NMR experiments and MS) and comparison with literature data. Copyright (C) 2004 John Wiley Sons, Ltd.
Subject: structure determination
Country: Inglaterra
Editor: John Wiley & Sons Ltd
Rights: fechado
Identifier DOI: 10.1002/pca.757
Date Issue: 2004
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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