Chemical constituents from Stauntonia brachyanthera Hand–Mazz |
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Institution: | 1. Programa de Biologia Estrutural, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil;2. Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil;3. Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil |
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Abstract: | The present phytochemical investigations of Stauntonia brachyanthera Hand–Mazz resulted in the isolation of a triterpenoid glucoside (3-O-α-l-arabinopyranosyl-Akebonic acid, 1), four phenylpropanoids (staunoside C, cyclo-olivil-9-O-β-d-glucopyranoside, ficuscarpanoside B, ficuscarpanoside A, 2–5), three phenylethanoid glycosides (2-(3,4-dihydroxyphenyl)ethyl-β-d-glucopyranoside, 1′-O-phenethyl-α-l-rhamnopyranosyl-(1 → 6)-β-d-glucopyranoside, calceolarioside B, 6–8), a phenolic glycoside (seguinoside K, 9) and a chlorogenic acid analogue (methyl chlorogenate, 10). Among them, compounds 1, 2 are isolated for the first time from this plant, compound 8 is firstly reported from genus Stauntonia and compounds 4–7, 9 and 10 are new for the family of Lardizabalacea. The chemotaxonomic importance of these compounds was also summarized. |
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