Polyacetylene glycosides from Gymnaster koraiensis |
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Authors: | Park JinYoung Min ByungSun Jung HyunJu Kim YoungHo Lee HyeongKyu Bae KiHwan |
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Institution: | College of Pharmacy, Chungnam National University, Taejon, Korea. |
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Abstract: | Two polyacetylene glycosides, gymnasterkoreasides A and B, were isolated from the roots of Gymnaster koraiensis. Their structures were elucidated to be (3R)-8-decene-4,6-diyne-1,3-diol 1-O-beta-D-glucopyraside and (3R)-8-decene-4,6-diyne-1,3-diol 1-O-beta-D-apiofuranosyl-(1-->6)-beta-D-glucopyraside on the basis of spectroscopic analysis including COSY, HMQC, and HMBC experiments, as well as chemical methods, which confirmed the determination of a chiral center by the modified Mosher's method. |
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