TY - JOUR
T1 - Tetrapterosides A and B, two new oleanane-type saponins from Tetrapleura tetraptera
AU - Noté, Olivier Placide
AU - Mitaine-Offer, Anne Claire
AU - Miyamoto, Tomofumi
AU - Paululat, Thomas
AU - Pegnyemb, Dieudonné Emmanuel
AU - Lacaille-Dubois, Marie Aleth
PY - 2009/3
Y1 - 2009/3
N2 - From the stem bark of Tetrapleura tetraptera, two new oleanane-type saponins, tetrapteroside A 3-O-{6-O-[(2E,6S)-2,6-dimethyl-6-hydroxyocta-2,7- dienoyl]-β-D-glucopyranosyl-(1 → 2)-β-D-glucopyranosyl-(1 → 3)-β-D-glucopyranosyl-(1 → 4)-[β-D-glucopyranosyl-(1 → 2)]-β-D-glucopyranosyl}-3,27-dihydroxyoleanolic acid (1), and tetrapteroside B 3-O-[β-D-glucopyranosyl-(1 → 2)-6-O-[(E)-feruloyl]- β-D-glucopyranosyl-(1 → 3)-β-D-glucopyranosyl-(1 → 4)-[β-D-glucopyranosyl-(1 → 2)]-β-D-glucopyranosyl}-3,27- dihydroxyoleanolic acid (2), were isolated. Further extractions from the roots led to the isolation of four known oleanane-type saponins. Their structures were elucidated by the combination of mass spectrometry (MS), one and two-dimensional NMR experiments.
AB - From the stem bark of Tetrapleura tetraptera, two new oleanane-type saponins, tetrapteroside A 3-O-{6-O-[(2E,6S)-2,6-dimethyl-6-hydroxyocta-2,7- dienoyl]-β-D-glucopyranosyl-(1 → 2)-β-D-glucopyranosyl-(1 → 3)-β-D-glucopyranosyl-(1 → 4)-[β-D-glucopyranosyl-(1 → 2)]-β-D-glucopyranosyl}-3,27-dihydroxyoleanolic acid (1), and tetrapteroside B 3-O-[β-D-glucopyranosyl-(1 → 2)-6-O-[(E)-feruloyl]- β-D-glucopyranosyl-(1 → 3)-β-D-glucopyranosyl-(1 → 4)-[β-D-glucopyranosyl-(1 → 2)]-β-D-glucopyranosyl}-3,27- dihydroxyoleanolic acid (2), were isolated. Further extractions from the roots led to the isolation of four known oleanane-type saponins. Their structures were elucidated by the combination of mass spectrometry (MS), one and two-dimensional NMR experiments.
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U2 - 10.1002/mrc.2381
DO - 10.1002/mrc.2381
M3 - Article
C2 - 19153973
AN - SCOPUS:61849121798
SN - 0749-1581
VL - 47
SP - 277
EP - 282
JO - Magnetic Resonance in Chemistry
JF - Magnetic Resonance in Chemistry
IS - 3
ER -