ネジキLyonia ovalifolia SIEB. et ZUCC.var.elliptica HAND.-MAZZ.の成分研究(第6報) : 葉のTriterpenoidおよびSteroid成分について

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The leaves of Lyonia ovalifolia SIEB. et ZUCC. var. elliptica HAND.-MAZZ. were extracted successively, with benzene and methanol From the benzene extract, nonacosane, 2-nonacosanone (a new compound), 1-triacontanol, ursolic acid, lyofolic acid (a new compound), and a trace of β-sitosterol were isolated. From the methanol extract, β-sitosteryl β-D-glucoside was separated. 2-Nonacosanone C_<29>H_<58>O, colorless plates, m.p. 81°, whose infrared spectrum is shown in Fig. 1,gave nonacosane C_<20>H_<60>, m.P. 63〜64°, by the Huns-Minlon reduction. Lyofolic acid, C_<58>H_<62>O_<1O>・2H_2O, colorless plates (from ethyl acetate), m.p. 136°, or C_<38>H_<62>O_<10>, colorless grains (from boiling benzene), m.p. 192°, is a hydroxytriterpenecarboxylic acid, containing a glucose residue and an O-acetyl group [C_<29>H_<47>(COOH)(OC_6H_<11>O_5)(OCOCH_3)].
公益社団法人日本薬学会の論文
1967-05-25