コシアブラAcanthopanax sciadophylloides FRANCH.et SAV.の成分研究(第3報) : Taraxerolの高位脂肪酸エステル類について

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A new compound (I), mp 184°, [α]^<23>_D+7.1°(c=1.0,CHCl_3), was isolated from the terpenoid fraction of the benzene extract of the leaves of Acanthopanax sciadophylloides. I was hydrolyzed by alkali to yield taraxerol and a mixture of higher fatty acids. The acidic fraction was methylated without purification and examined by gas chromatography. The main components of the mixture were methyl stearate (15.6%), arachidate (38.2%), behenate (20.8%), and lignocerate (16.5%), accompanied by a small amount of methyl esters of higher normal saturated fatty acids of C_<21>, C_<23>, C_<25>, C_<26>, C_<28> and C_<30>^-. Taraxeryl stearate, arachidate, behenate, and lignocerate were synthesized from taraxerol and GLC- pure acids. IR spectra of the natural mixture and the synthesized pure compounds were almost identical but differed in the range of 1180-1350cm^<-1>, as shown in Fig. 1 and 2.
公益社団法人日本薬学会の論文
1970-03-25