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J Asian Nat Prod Res ; 25(9): 890-898, 2023 Sep.
Article in English | MEDLINE | ID: mdl-36448552

ABSTRACT

A new oleanane-type triterpenoid saponin, 21ß, 22α-di-O-angeloyl-15α, 16α, 28-trihydroxyolean-12-ene 3ß-O-α-L-rhamnopyranosyl-(1→3)-α-D-xylopyranosyl-(1→3)-ß-D-glucopyranoside (1), together with five known compounds (2-5), were isolated from Camellia nitidissima. Their structures were elucidated based on spectroscopic methods, including extensive NMR and MS spectra. Compound 1 showed potential inhibitory activity on α-glucosidase with the IC50 values of 185.9 ± 44.5 µmol/L.


Subject(s)
Camellia , Saponins , Triterpenes , Saponins/pharmacology , Saponins/chemistry , alpha-Glucosidases , Triterpenes/chemistry , Camellia/chemistry , Molecular Structure
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