Chemical constituents of Cordia piauhiensis: Boraginaceae
A new monodesmoside triterpenoid saponin characterized as 3beta-O-alpha-L-rhamnopyranosyl-(1->2)-beta-D-glucopyranosyl pomolic acid, was isolated from Cordia piauhiensis Fresen (Boraginaceae). Its structure was determined by extensive NMR analysis, including ¹H, ¹H-COSY, HMQC, HMBC, and NOESY experiments. In addition, four known triterpenoids: quinovic acid, cincholic acid, cincholic 3beta-O-6-deoxy-beta-D-glucopyranoside acid and quinovic 3beta-O-beta-D-glucopyranoside acid were also isolated.
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| Main Authors: | , , , , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2005
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000400029 |
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