The Terpenoids of Maytenus boaria MOL. (Celastraceae) |
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Authors: | Orlando Muoz Roberto Ruiz Antonio Gonzles Mercedes P Nüez Ignacio Jimnez Angel Ravelo |
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Institution: | Orlando Muñoz,Roberto Ruiz,Antonio Gonzáles,Mercedes P. Nüñez,Ignacio Jiménez,Angel Ravelo |
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Abstract: | The known triterpenoids β-amyrin (= olean-12-en-3β-ol; 22 ), lupeol (= lup-20(29)-en-3β-ol; 17 ), betulin (= lup-20(29)-ene-3β,28-diol; 18 ), lup-20(29)-ene-3β,30-diol ( 20 ), oleanolic acid (= 3β-hydroxyolean-12-en-28-oic acid; 21 ), and betulonic acid (= 3-oxolup-20(29)-en-28-oic acid; 19 ), together with epicatechol (= cis-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol; 23 ), 5′-O-methylgallocatechol (= trans-2-(3,4-dihydroxy-5-methoxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol; 24 ), and 4-hydroxybenzaldehyde were isolated from the aerial parts of Maytenus boaria (MOL. ). Additonally, the eight 4,C4-dihydro-β-agarofuran sesquiterpenoids 1–8 , one of them a diol with a (4R)-configuration, and compound 9 were present in the extract. The structures of these compounds were established by spectroscopic and chemical means. |
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