Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Studies on the Constituents of Japanese and Chinese Crude Drugs. VII. On the Constituents of the Roots of Sophora subprostrata CHUN et T. CHEN, (2), and Sophora japonica L. (1).
Shoji ShibataYoshihiro Nishikawa
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1963 Volume 11 Issue 2 Pages 167-177

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Abstract
In the previous paper, it was reported that two crystalline compounds, tentatively named B1 and C1, were isolated from Sophora subprostrata in poor yield. In the present wark, two new crystalline compounds were obtained from the roots of Sophora japonica in good yields and named B2 and C2, respectively. The chemical structures of these four compounds were established as follows : B1 : l-Maackiain-mono-β-D-glucoside, C1 : l-pterocarpin, B2 : d-maackiain-mono-β-D-glucoside and C2 : dl-maackiain. B1 seems to be identical with trifolirhizin which was recently reported by J.B. Son Bredenberg et al. B2 is one of the diastereomers of trifolirhizin and so the name sophojaponicin was proposed.
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© The Pharmaceutical Society of Japan
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