Non-enzymic and Enzymic Oxygenations of a Dibenzocyclooctadiene Lignan, (.+-.)-Deoxyschizandrin: Implications for Biosynthesis of the Corresponding Lignans.
作者:Tetsuya TAKEYA、Mitsuo NAKAGAWA、Akira OHGUCHI、Seisho TOBINAGA
DOI:10.1248/cpb.42.1694
日期:——
Non-enzimic and enzymic oxygenation reactions of (±)-dibenzocyclooctadiene lignan, (±)-deoxyschizandrin (1) using a simple model system for mono-oxygenases Fe(MeCN)62+-Ac2O-H2O2 and rat liver S9 mix were investigated in connection with mammalian and plant metabolisms of the corresponding lignans. The non-enzymic reaction of 1 gave the two phenol acetates 4a and 5a and a quinone 6, and the enzymic reaction of 1 afforded several compounds from which three compounds characterized as 7, 8, and 9 were isolated. The latter result has implications for biosynthesis of these lignans.
使用单加氧酶 Fe(MeCN)62+-Ac2O-H2O2 和大鼠肝脏 S9 混合物的简单模型系统研究 (±)-二苯并环辛二烯木脂素、(±)-脱氧五味子素 (1) 的非酶和酶氧化反应与相应木脂素的哺乳动物和植物代谢有关。 1的非酶反应得到两种苯酚乙酸酯4a和5a以及醌6,1的酶反应得到几种化合物,从中分离出表征为7、8和9的三种化合物。后一个结果对这些木脂素的生物合成具有影响。