Quimica nova | |
Flavonoids and a neolignan glucoside from Guarea macrophylla (Meliaceae) | |
Wessjohann, Ludger1  Porzel, Andrea1  Kuster, Ricardo Machado2  Simas, Naomi Kato2  Barreto Júnior, Cleber Bomfim2  Pereira, Cristiane2  Sakuragui, Cassia Mônica2  | |
[1] Leibniz Institute of Plant Biochemistry, Germany;Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil | |
关键词: Guarea macrophylla; dehydrodiconiferyl alcohol-; 4-; β; -; D-; glucoside; flavonoid glycosides.; | |
DOI : 10.1590/S0100-40422012000600010 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
This work describes the phytochemical study of the methanol extract obtained from leaves of Guarea macrophylla, leading to the isolation and identification of three flavonoid glycosides (quercetin 3-O-β-D-glucopyranoside, quercetin 3-O-b-D-galactopyranoside, kaempferol 7-O-β-D-glucopyranoside) and a neolignan glucoside, dehydrodiconiferyl alcohol-4-β-D-glucoside. All compounds were identified by a combination of spectroscopic methods (1H, 1D, 2D NMR, 13C and UV), ESI-MS and comparison with the literature data. This is the first report of flavonoids in the genus Guarea and of a neolignan glucoside in the Meliaceae family.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201902017619169ZK.pdf | 246KB | download |