Acyl α-L-Rhamnopyranosides, a Novel Family of Secondary Metabolites fromStreptomyces sp.: Isolation and Biosynthesis
作者:Stephanie Grond、Hans-Jörg Langer、Petra Henne、Isabel Sattler、Ralf Thiericke、Susanne Grabley、Hans Zähner、Axel Zeeck
DOI:10.1002/(sici)1099-0690(200003)2000:6<929::aid-ejoc929>3.0.co;2-u
日期:2000.3
In the course of our chemical screening program, the novel acyl α-L-rhamnopyranosides (1-6) were detected as metabolites from five different strains of Streptomycetes. The structures of all these compounds were elucidated by chemical and spectroscopic methods. The biosynthesis of 1 and 3 was established by feeding 13C-labelled acetate, glycerol, and D-glucose to Streptomyces griseoviridis (strain Tu
在我们的化学筛选程序过程中,新型酰基 α-L-吡喃鼠李糖苷 (1-6) 被检测为来自五种不同链霉菌菌株的代谢物。所有这些化合物的结构都通过化学和光谱方法阐明。1 和 3 的生物合成是通过将 13C 标记的乙酸盐、甘油和 D-葡萄糖喂给灰色链霉菌(菌株 Tu 3634)来建立的,并产生了 2,4-二甲基-3-呋喃基羰基和苯甲酰基的完整标记模式残基,以及鼠李糖部分。这些结果揭示了具有普遍重要性的生物合成途径,并深入了解磷酸己糖的产生,从中形成脱氧糖。酰基鼠李糖苷是一个新的微生物代谢物家族的成员,被认为是来自链霉菌的鼠李糖结合物。