期刊
PHYTOCHEMISTRY
卷 68, 期 13, 页码 1762-1766出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2007.03.035
关键词
Penstemon gentianoides; Plantaginaceae; iridoids; flavonoids; phenyl propanoids; structural elucidation
From the MeOH and ethyl acetate extracts of aerial parts of Penstemon gentianoides HBK (Plantaginaceae) an unusual iridoid of the catalpol-type, was isolated and characterized as pensteminoside: (8-O-trans-cinnamoyl, 6-hydroxy, 1-[beta-D-glucopyranoside-6'-O-((4hydroxy)-cinnamoyl)]-catalpol) was isolated, along with the known iridoids: plantarelanoside and globularisicin, the flavone: luteolin and diosmetin, as well the phenylpropanoids, verbascoside and martynoside. Their structures were established by 1 D and 2D NMR spectroscopic analyses. (c) 2007 Elsevier Ltd. All rights reserved.
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