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KMID : 0903520050480040421
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2005 Volume.48 No. 4 p.421 ~ p.424
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Development of Biologically Active Compound from Edible Plant Sources-XV. Isolation of Triterpene Glycosides from the Leaf of Petasites japonicus
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Bang Myun-Ho
Park Jin-Kyu
Song Myoung-Chong
Yang Hye-Joung
Yoo Jong-Su
Ahn Eun-Mi
Kim Dae-Keun
Baek Nam-In
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Abstract
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The leaf of Petasites japonicus was extracted with 80% aqueous MeOH and solvent fractionated with EtOAc, n-BuOH and water successively. From the EtOAc fractions, two triterpenoids were isolated through the repeated silica gel and ODS column chromatographies. The chemical structures of the isolated terpenoids were determined as rosamutin (1) and peduncloside (2) through the interpretation of several spectral data including 2D-NMR such as 1H-1H gCOSY, gHSQC and gHMBC.
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KEYWORD
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Petasites japonicus, Compositae, triterpenoid, rosamutin, peduncloside
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