从柔滑曼陀罗叶片中分离得到的四种新黄酮醇苷。

Four new flavonol glycosides from the leaves of Brugmansia suaveolens.

作者信息

Geller Fabiana, Murillo Renato, Steinhauser Lisa, Heinzmann Berta, Albert Klaus, Merfort Irmgard, Laufer Stefan

机构信息

Department of Pharmaceutical/Medicinal Chemistry, University of Tübingen, Tübingen 72076, Germany.

Escuela de Quimica and CIPRONA, University of Costa Rica, San José 2060, Costa Rica.

出版信息

Molecules. 2014 May 22;19(5):6727-36. doi: 10.3390/molecules19056727.

DOI:10.3390/molecules19056727

PMID:24858103

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6271595/

Abstract

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.

摘要

从柔滑曼陀罗的叶子中分离出了四种新的黄酮醇苷

山奈酚3 - O - β - D - 吡喃葡萄糖基 -（1'''→2''）- O - α - L - 阿拉伯吡喃糖苷（1）、山奈酚3 - O - β - D - 吡喃葡萄糖基 -（1'''→2''）- O - α - L - 阿拉伯吡喃糖苷 - 7 - O - β - D - 葡萄糖苷（2）、山奈酚3 - O - β - D - [6'''- O -（E - 咖啡酰基）] - 吡喃葡萄糖基 -（1'''→2''）- O - α - L - 阿拉伯吡喃糖苷 - 7 - O - β - D - 葡萄糖苷（3）和山奈酚3 - O - β - D - [2'''- O -（E - 咖啡酰基）] - 吡喃葡萄糖基 -（1'''→2''）- O - α - L - 阿拉伯吡喃糖苷 - 7 - O - β - D - 葡萄糖苷（4）。通过质谱、一维和二维核磁共振分析进行结构解析。