HETEROCYCLES
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Obituary
Zenichi Yoshida (1925-2023)
Zenichi Yoshida (1925-2023)
Professor. Zenichi Yoshida,
a member of the Honorary Advisors of HETEROCYCLES (1975-1998),
has passed away on May 4, 2023 at the age of 97.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
May 11, 2023
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Note | Regular issue | Vol 45, No. 10, 1997, pp.2053-2060
Published online, 1st January, 1970■ Studies on the Index Compounds for HPLC Analysis of Glycyrrhiza uralensis
Published online, 1st January, 1970
DOI: 10.3987/COM-97-7906
■ Studies on the Index Compounds for HPLC Analysis of Glycyrrhiza uralensis
Makio Shibano, Ayako Henmi, Yoshihiro Matsumoto, Genjiro Kusano,* Toshio Miyase, and Yoshio Hatakeyama
*Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
Abstract
HPLC of the AcOEt extracts of subterranean (roots or stolons) samples of Glycyrrhiza uralensis showed two types of the reproducible chromatograms distinct from those of other species (G. glabra, G. pallidiflora, G. echinata, G. macedonica). As index compounds for HPLC of G. uralensis, two new compounds, named glyurallins A and B, were isolated and their structures were difined, in addition to identification of nine compounds to glycycoumarin, semilicoisoflavone B, dehydroglyasperin C, licoisoflavanone, glycyrol, glycyrin, gancaonin N, licoricidine and 8-γ,γ-dimethylallylwighteone.
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