Four New Flavonol Glycosides from the Leaves of Brugmansia suaveolens

Molecules

Fabiana Geller³  Renato Murillo¹  Lisa Steinhauser⁴  Berta Heinzmann⁵  Klaus Albert⁴  Irmgard Merfort² 

[1] Escuela de Quimica and CIPRONA, University of Costa Rica, San José 2060, Costa Rica;Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Freiburg im Breisgau 79104, Germany;Department of Pharmaceutical/Medicinal Chemistry, University of Tübingen, Tübingen 72076, Germany;Department of Organic Chemistry, University of Tübingen, Tübingen 72076, Germany;Department of Industrial Pharmacy, Federal University of Santa Maria, Santa Maria 97105-900, Brazil

关键词: Brugmansia suaveolens;    Solanaceae;    acylated kaempferol glycosides;   

DOI  :  10.3390/molecules19056727

来源: mdpi

【 摘 要 】

Four new flavonol glycosides were isolated from the leaves of Brugmansia suaveolens: kaempferol 3-O-β-d-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside (1), kaempferol 3-O-β-d-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside-7-O-į-d-gluco-pyranoside (2), kaempferol 3-O-β-d-[6'''-O-(E-caffeoyl)]-glucopyranosyl-(1'''→2'')-O-α-l-arabinopyranoside-7-O-β-d-glucopyranoside (3), and kaempferol 3-O-β-d-[2'''-O-(E-caffeoyl)]-glucopyranosyl-(1'''→2'')-O-α-l-arabinopyranoside-7-O-β-d-glucopyranoside (4). The structure elucidation was performed by MS, 1D and 2D NMR analyses.

【 授权许可】

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© 2014 by the authors; licensee MDPI, Basel, Switzerland.