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Natural products isolation studies of the paleoendemic plant species Nothofagus gunnii and Nothofagus cunninghamii



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Abstract
The first natural product isolation studies of Nothofagus gunnii (Hook.f.) Oerst and Nothofagus cunninghamii (Hook.f.) Oerst have been undertaken. A previously unreported stilbene derivative, pinosylvin monoacetate, was isolated from the leaves of N. gunnii, in addition to 14 known compounds; including the flavonoids galangin, pinobanksin, catechin and quercetin; sesquiterpenoids such as, ilicol and (+)-β-costol acetate; 2,4-dihydroxy-6-methoxychalcone and pinosylvin. Four known flavonoid natural products, catechin, quercetin, ayanin, and avicularin were isolated from the leaves of N. cunninghamii. This study reveals that N. gunnii is a rich source of flavonoid, chalcone and stilbene compounds, while primarily hydroxyflavonoid compounds are found in N. cunninghamii. The isolated phytochemicals are consistent with the evolutionary relationships suggested to exist among Nothofagus species.
Item Type: | Article |
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Authors/Creators: | Gyeltshen, T and Jordan, GJ and Smith, JA and Bissember, AC |
Keywords: | Nothofagus gunnii, Nothofagus cunninghamii, flavonoids, terpenoids, stilbenes |
Journal or Publication Title: | Fitoterapia |
Publisher: | Elsevier Science Bv |
ISSN: | 0367-326X |
DOI / ID Number: | 10.1016/j.fitote.2021.105088 |
Copyright Information: | © 2021 Elsevier B.V. |
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