Abstract
Chromatographic separation of the 50% aqueous EtOH extract of the leaves of the African medicinal tree Baphia nitida resulted in isolation of 10 iminosugars. The plant contained 2R,5R-dihydroxymethyl-3R,4R-dihydroxypyrrolidine (DMDP) as a major alkaloid. The structure of a new alkaloid was also elucidated by spectroscopic methods as the 1-O-β-d-fructofuranoside of DMDP, and this plant produced 3-O-β-d-glucopyranosyl-DMDP as well. DMDP is a potent inhibitor of β-glucosidase and β-galactosidase, whereas the other two derivatives lowered inhibition toward both of these enzymes and improved inhibitory activities toward rice α-glucosidase and rat intestinal maltase.
Original language | English |
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Pages (from-to) | 1261-1265 |
Number of pages | 5 |
Journal | Phytochemistry |
Volume | 69 |
Issue number | 5 |
DOIs | |
State | Published - 2008/03 |
Keywords
- 1-O-β-d-Fructofuranosyl-2R,5R-dihydroxymethyl-3R,4R-dihydroxypyrro lidine
- Baphia nitida
- DMDP
- Fabaceae
- Glycosidase inhibitor
- Iminosugar
- Polyhydroxyalkaloids
ASJC Scopus subject areas
- Biochemistry
- Molecular Biology
- Plant Science
- Horticulture