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J Nat Prod. 2012 Feb 24;75(2):267-70. doi: 10.1021/np200646e. Epub 2012 Jan 20.

Chemical constituents from the aerial parts of Aster koraiensis with protein glycation and aldose reductase inhibitory activities.

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Diabetic Complications Research Center, Division of Traditional Korean Medicine (TKM) Integrated Research, Korea Institute of Oriental Medicine (KIOM), Daejeon 305-811, Republic of Korea.


Two new eudesmane-type sesquiterpene glucosides, 9β-O-(E-p-hydroxycinnamoyl)-1β,6β-dihydroxy-trans-eudesm-3-en-6-O-β-D-glucopyranoside (1) and 9α-O-(E-p-hydroxycinnamoyl)-1α,6α-11-trihydroxy-trans-eudesm-3-en-6-O-β-D-glucopyranoside (2), were isolated by the activity-guidedfractionation of an EtOAc-soluble fraction from the aerial parts of Aster koraiensis. A new dihydrobenzofuran glucoside, (2R,3S)-6-acetyl-2-[1-O-(β-D-glucopyranosyl)-2-propenyl]-5-hydroxy-3-methoxy-2,3-dihydrobenzofuran (3), was also isolated, in addition to 15 known compounds. The structures of 1-3 were determined by spectroscopic data interpretation. All of the isolates were evaluated for in vitro inhibitory activity against the formation of advanced glycation end-products and rat lens aldose reductase.

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