Studies on the Constituents of Asclepiadaceae Plants. LV. The Structures of Three New Glycosides, Glaucoside-H, -I, and -J from the Chinese Drug "Pai-ch'ien, "Cynanchum glaucescens HAND-MAZZ
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概要
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The glycosides of the Chinese crude drug"Pai-ch'ien"("Bai-qian") were further investigated. Column chromatography of the polar portion of the crude glycosides of this drug gave three new glycosides named glaucoside-H (1), -I (2), and -J (3), and their structures were characterized on the bases of spectroscopic evidence and hydrolytic degradative studies. The structure of a new disaccharide named glaucobiose (12), formed by hydrolyses of 1,2,and 3,was also characterized as 4-O-β-D-glucopyranosyl-L-cymaropyranose. Compounds 1 and 2 were found to correspond to 4'''-O-β-D-glucopyranosyl derivatives of glaucoside-C (4) and glaucoside-B (5) previously reported, respectively. Compound 3 is a glycoside having glaucogenin-B as the aglycone, and its sugar moiety corresponds to that of the 4'''-O-β-D-glucopyranosyl derivative of glaucoside-D (7) previously reported.
- 社団法人日本薬学会の論文
- 1983-07-25
著者
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中川 喬
津村研
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三橋 博
Faculty of Pharmaceutical Sciences, Hokkaido University
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林 紘司
Faculty of Pharmaceutical Sciences, Hokkaido University
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三橋 博
Research Institute For Biology & Chemistry Tsumura & Co.
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三橋 博
Tsumura Institute For Biology And Chemistry
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三橋 博
Faculty Of Pharmaceutical Sciences Hokkaido University
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林 紘司
Tsumura Central Research Laboratories Tsumura & Co.
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中川 喬
Faculty of Pharmaceutical Sciences, Hokkaido University
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林 紘司
Faculty Of Pharmaceutical Sciences Hokkaido University
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林 紘司
北海道大学薬学部
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