Flavonol glycosides and dammarane saponin from Gouania leptostachya

Using combined chromatographic methods, two flavonol glycosides and one dammarane‐type saponin were isolated from the methanol extract of the leaves of Gouania leptostachya. Their structures were elucidated to be quercetin 3‐O‐β‐D‐xylopyranosyl‐(1 → 2)‐α‐L‐rhamnopyranoside (1), quercetin 3‐O‐6‐E‐p‐c...

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Bibliographic Details
Published in:Vietnam journal of chemistry 2019-06, Vol.57 (3), p.277-280
Main Authors: Thuy, Nguyen Thi Kim, Trang, Do Thi, Trang, Mai Thi Nhu, Bay, Ninh Khac, Tai, Bui Huu, Van Kiem, Phan, Yen, Pham Hai, Nhiem, Nguyen Xuan
Format: Article
Language:English
Subjects:
dammarane
flavonol glycoside
Gouania leptostachya
joazeiroside A
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Summary:Using combined chromatographic methods, two flavonol glycosides and one dammarane‐type saponin were isolated from the methanol extract of the leaves of Gouania leptostachya. Their structures were elucidated to be quercetin 3‐O‐β‐D‐xylopyranosyl‐(1 → 2)‐α‐L‐rhamnopyranoside (1), quercetin 3‐O‐6‐E‐p‐coumaroyl‐β‐D‐glucopyranosyl‐(1 → 2)‐α‐L‐rhamnopyranoside (2) and joazeiroside A (3) by 1D‐, 2D‐NMR, and MS spectra and in comparison with those reported in the literature. These compounds have been reported from the Gouania genus for the first time.
ISSN:0866-7144
2572-8288
2572-8288
DOI:10.1002/vjch.201960026