A new phenolic derivative, 4-methoxyphenol 1-O-β-D-apiofuranosyl-(1→6)-O--D-glucopyranoside (1), has been identified together with uncommon 3,4-dimethoxyphenol 1-O-β-D-apiofuranosyl-(1→6)-O--D-glucopyranoside (2) and 3-hydroxy, 4-methoxyphenol 1-O-β-Dapiofuranosyl-(1→6)-O--D-glucopyranoside (3) from the leaves of Martinella obovata (Kunth) Bureau & K. Schum., an Honduran species used in folk medicine for the treatment of eyes diseases. Verbascoside, isoverbascoside, leucoceptoside A, vitexin, isovitexin, luteolin 8-C-β-D-glucopiranoside and spireoside were also found. All structures were elucidated on the basis of mass spectrometry and 2D NMR techniques.
Phenolic derivatives from the leaves of Martinella obovata (Bignoniaceae)
PICCINELLI, ANNA LISA;CAMPONE, LUCA;RASTRELLI, Luca
2011-01-01
Abstract
A new phenolic derivative, 4-methoxyphenol 1-O-β-D-apiofuranosyl-(1→6)-O--D-glucopyranoside (1), has been identified together with uncommon 3,4-dimethoxyphenol 1-O-β-D-apiofuranosyl-(1→6)-O--D-glucopyranoside (2) and 3-hydroxy, 4-methoxyphenol 1-O-β-Dapiofuranosyl-(1→6)-O--D-glucopyranoside (3) from the leaves of Martinella obovata (Kunth) Bureau & K. Schum., an Honduran species used in folk medicine for the treatment of eyes diseases. Verbascoside, isoverbascoside, leucoceptoside A, vitexin, isovitexin, luteolin 8-C-β-D-glucopiranoside and spireoside were also found. All structures were elucidated on the basis of mass spectrometry and 2D NMR techniques.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
