Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: leaf
The structure was elucidated in this paperPublication DOI: 10.1016/S0031-9422(97)00790-5Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Al-Azhar University, Faculty of Pharmacy, Department of Pharmacognosy, Cairo, Egypt
Three secoiridoid glucosides, fraxicarboside A, 6 "-O-trans-p-coumaroyl-10-hydroxyoleuropein, fraxicarboside B, 6 "-O-trans-caffeoyl-10-hydroxyoleuropein, and fraxicarboside C, 3 "-O-acetyl-6 "-O-trans-caffeoyl-10-hydroxyoleuropein have been isolated for the first time from the leaves of Fraxinus oxycarba Willd. together with four known secoiridoids; oleuropein, ligstroside, 10-hydroxyoleuropein and 10-hydroxyligstroside, three known lignans; (+)-pinoresenol-4'-O-beta-D-glucopyranoside (+)-fraxiresinol-1-O-beta-D-glucopyranoside and (+)-1-hydroxypinoresinol-4'-O-beta-D-glucopyranoside, two known phenylpropanoid glycosides; verbascoside (= acteoside), and 6-O-caffeoyl-beta-D-glucopyranoside, and three known flavonol glycosides; kaempferol-3-O-beta-D-glucopyranoside, kaempferol-3-O-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-glucopyranoside and quercetin-3-O-alpha-L-rhamnopyranosyl-(1 --> 6)-beta-D-glucopyranoside. The complete H-1 and C-13 NMR spectral assignments of the new compounds were confirmed by the conventional 1D NMR methods and 2D shift-correlated techniques: COSY, HMBC and HMQC.
flavonol glycosides, B and C, Oleaceae, lignans, Fraxinus oxycarba, fraxicarbosides A, acyl secoiridoid glucosides, caffeoyl esters
Structure type: monomer ; 725 [M+Na]+
Location inside paper: p. 1571, Scheme, compound 15
Compound class: glycoside
Contained glycoepitopes: IEDB_136105,IEDB_142488,IEDB_144144,IEDB_146664,IEDB_225177,IEDB_885823,IEDB_983931,SB_192
Methods: 13C NMR, 1H NMR, IR, FAB-MS, TLC, UV, extraction, acetylation, CC, HMBC, HMQC, DEPT, COSY, NOESY, HR-FAB-MS
Related record ID(s): 61844, 61847, 61848, 61850, 61851, 61939, 61940, 61945, 61946, 61947, 61948, 61949, 61966
NCBI Taxonomy refs (TaxIDs): 38871
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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