Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
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Structures of Two New Phenolic Glycosides, Kaempferiaosides A and B, and Hepatoprotective Constituents from the Rhizomes of Kaempferia parviflora
Saowanee ChaipechToshio MorikawaKiyofumi NinomiyaMasayuki YoshikawaYutana PongpiriyadachaTakao HayakawaOsamu Muraoka
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2012 年 60 巻 1 号 p. 62-69

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Two new phenolic glycosides, kaempferiaosides A and B were isolated from the rhizomes of Kaempferia parviflora (Zingiberaceae) together with 24 known compounds. Their structures including absolute stereochemistry were elucidated on the basis of chemical and spectroscopic evidence. Among the isolates, 5,3′-dihydroxy-3,7,4′-trimethoxyflavone showed higher activity than silybin, a commercial hepatoprotective agent.

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© 2012 The Pharmaceutical Society of Japan
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