Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Steroidal Glycosides from the Root of Metaplexis japonica M. Part II
Tsutomu WARASHINA, Tadataka NORO
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Keywords: Metaplexis japonica, Asclepiadaceae, prefnane glycoside, ramanone, pergularin, deacylmetaplexigenin
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1998 Volume 46 Issue 11 Pages 1752-1757

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Abstract
Fifteen new steroidal glycosides were obtained from the roots of Metaplexis japonica M. (Asclepiadaceae). These glycosides were confirmed to have ramanone, 12-O-acetylramamone, pergularin, 12-O-acetylpergularin and deacylmetaplexigenin as the aglycone and 2, 6-dideoxyhexopyranoses as the sugar sequence by spectroscopic methods and chemical evidence.
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© The Pharmaceutical Society of Japan
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