Investigations on the biosynthesis of flexirubin—the origin of benzene ring b and its substituents
作者:Hans Achenbach、Angelika Böttger-Vetter、Dieter Hunkler、Erich Fautz、Hans Reichenbach
DOI:10.1016/s0040-4020(01)97645-8
日期:——
Experiments on the biosynthesis of flexirubin (1) from the gliding bacterium Flexibacter elegans using 14C- and 13C-labelled acetate as well as investigations on the metabolites of a blocked mutant showed, that (a) all carbon atoms of ring B are derived from acetate; (b) 3-dodecylorsellinic and orsellinic acid are intermediates in the biosynthesis; and (c) the carboxyl group of orsellinic acid is lost
使用14 C和13 C标记的乙酸酯从滑行线虫Flexibacter elegans生物合成flexirubin(1)的实验以及对一个封闭的突变体的代谢产物的研究表明,(a)环B的所有碳原子均被衍生从醋酸盐; (b)3-十二烷基熊果酸和奥数酸是生物合成的中间体;(c)在与ω-苯基-多烯羧酸或其前体建立酯键以形成1之前,奥数苯四酸的羧基丢失。14 C-丙酸酯专门并入更高同源性为1的C 13 H 27侧链,这是除了产生1在非常低的浓度(<1%1)。