Steroids and triterpenes from Eleocharis acutangula and E. sellowiana (Cyperaceae).
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(0) (0 Votes)Views: () Date: (2004-5-1) Pages: () -
Author: Ana Lúcia T G Ruiz
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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-3al pha-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.
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