Symposium on the Chemistry of Natural Products, symposium papers
Online ISSN : 2433-1856
15
Session ID : 29
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29 New Furanosesquiterpenes from Ligularia japonica Less. and Farfugium japonicum Kitam
Masahiro Tada, Hajime Nagano, Eiichi Shirasaki, Hideo Komatsu, Yoshiaki Tanahashi, Yoshihiko Moriyama, Takeyoshi Takahashi, Masaru Fukuyama
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Abstract

Three new furanoeremophilanes were isolated from Ligularia japonica Less., and their structures determined as furanoeremophilane-6β, 10β-diol (I), 10β-hydroxy-6β-methoxyfuranoeremophilane (II) and 10β-hydroxyfuranoeremophilan-6β-y1 2'ζ-methylbutanoate (III), respectively. Two new sesquiterpenes isolated from Farfugium japonicum Kitam. (=Ligularia tussilaginea Makino) were shown to be a tetrahydronaphtofuran derivative (V) and a benzofuran derivative (VI), respectively.

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