Chemical transformation of tylosin,a 16-membered macrolide,and its structure-activity relationship.
作者:HAJIME MATSUBARA、KATSUJI MIYANO、AKIRA NAKAGAWA、SATOSHI OMURA
DOI:10.1248/cpb.30.97
日期:——
Tylosin is a 16-membered macrolide antibiotic used as veterinary antimicrobial agent. In this paper, we describe the structure of a novel condensation product obtained by acidic hydrolysis and alkaline treatment of tylosin, as well as the isolation of the aglycone part, tylonolide 5, 20-hemiacetal, by application of a modified Polonovski reaction to tylosin. Furthermore, we describe syntheses of the intermediates of tylosin biosynthesis and of related compounds, and also the relationship between the structure and antimicrobial activity.
泰乐菌素是一种16元大环内酯抗生素,用作兽用抗菌剂。本文描述了通过酸水解和碱性处理泰乐菌素获得的一种新型缩合产物的结构,以及通过改良的Polonovski反应从泰乐菌素中分离得到的无糖部分,即泰乐菌素5,20缩醛。此外,本文还描述了泰乐菌素生物合成中间体及相关化合物的合成,以及结构与抗菌活性之间的关系。