New Sesquiterpene Glycosides from the Leaves of Eriobotrya japonica
نویسندگان
چکیده
منابع مشابه
A new acylated flavonol glycoside from the leaves of Eriobotrya japonica.
A new acylated flavonol glycoside was isolated from the leaves of Eriobotrya japonica along with two known flavonol glycosides. Their structures were determined by extensive spectroscopic investigation.
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BACKGROUND In the present work we determined phenolic and flavonoids content of Eriobotrya japonica leaves extracts and fractions and their antioxidant and anti-inflammatory properties. OBJECTIVES To evaluate the inhibition of inflammatory PLA2 and antioxidant effects of extracts and fractions from Eriobotrya japonica leaves. METHODS Antioxidant activity was evaluated with DPPH radical scav...
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Three new sesquiterpene glycosides, possessing a rare aglycone with a sulfonyl between C-1 and C-15 positions, named 3-(3'E-7'R,8'-dihydroxy-4',8'-dimethyl-3'-nonenyl)-2,5-dihydro-1,1-dioxo-thiophen 7'-O-β-d-glucopyranosyl-(1→4)-O-β-d-glucopyranosyl-(1→4)-O-β-d-glucopyranoside (1), 3-(3'E-7'R,8'-dihydroxy-4',8'-dimethyl-3'-nonenyl)-2,5-dihydro-1,1-dioxo-thiophen 7'-O-β-d-glucopyranosyl-(1→4)-O-...
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The leaves of loquat (Eriobotrya japonica) possess high medicinal value and have been used as traditional medicines. However, there are no evidence-based studies on the skin-care effects of E. japonica leaves. To explore new biological activities of E. japonica leaves against skin disorder and to gain a better understanding of the chemical components associated with bioactivities, we evaluated ...
متن کاملFour new flavonol glycosides from the leaves of Brugmansia suaveolens.
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-...
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ژورنال
عنوان ژورنال: Natural Product Communications
سال: 2015
ISSN: 1934-578X,1555-9475
DOI: 10.1177/1934578x1501000702