0000000000014940

AUTHOR

Matthias F. Melzig

showing 1 related works from this author

A new ursane-type triterpene oxoglucopyranoside from Crossopteryx febrifuga.

2019

Abstract A new saponin, 3-O-β-d-3-oxo-glucopyranosyl-ursa-12,20(30)-diene-27,28-dioic acid (1), was isolated from the methanol extract of stem bark of Crossopteryx febrifuga together with the known 3β-d-glucopyranosyl-ursa-12,20(30)-diene-27,28-dioic acid (2), shanzhiside methyl ester (3), shanzhiside (4), β-sitosterol (5), β-sitosterol-3-O-β-d-glucopyranoside (6), ursa-12,20(30)-diene-27,28-dioic acid (7), hederagenin (8), and oleanolic acid (9). The structures were established by comprehensive interpretation of their spectral data 1D- (1H and 13C), 2D-NMR (1H-1H COSY, HMQC, HMBC), spectroscopic, and electrospray ionisation time-of-flight mass spectrometry analysis. The isolated compounds …

0106 biological sciencesProton Magnetic Resonance SpectroscopySaponinRubiaceaeMicrobial Sensitivity Testsmedicine.disease_cause01 natural sciencesGeneral Biochemistry Genetics and Molecular BiologyEnterococcus faecalischemistry.chemical_compoundMinimum inhibitory concentrationTriterpeneGlucosidesmedicineCarbohydrate ConformationCarbon-13 Magnetic Resonance SpectroscopyOleanolic acidchemistry.chemical_classificationChromatographybiologyBacteriaChemistrybiology.organism_classificationTriterpenes0104 chemical sciences010404 medicinal & biomolecular chemistryHederageninStaphylococcus aureusAntibacterial activity010606 plant biology & botanyZeitschrift fur Naturforschung. C, Journal of biosciences
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