Studies on L-rhamnosidase. Part VII. Syntheses of .ALPHA.-L-rhamnopyranosides of hydroxyamino acids.

Abstract

Recent work on glycoconjugates has clarified that such hydroxyamino acids as L-serine, L-threonine, L-hydroxyproline and 5-hydroxy-L-lysine existing in the internal region of the glycoproteins are often linked to carbohydrates to form 0-glycosides.In the course of our systematic studies1} on the substrate-specificity of a-Lrhamnosidase, a number of oligosaccharides and flavonoid glycosides containing an a-L-rhamnopyranosidic