Novel diglycosyldiacylglycerol from the Gram-negative bacterium Deleya marina

Abstract

A glycosyldiacylglycerol was isolated from the marine bacterium Deleya marina (ATCC 25374). The structure was determined, mainly by spectral data, to be 1,2-diacyl-3-O-[α-2-amino-2-deoxy-glucopyranose-(1→4)-O-α-iduronopyranuronic acid]-glycerol. This is, to our knowledge, the first isolation of diglycosyldiacylglycerol containing both iduronopyranuronic acid and 2-amino-2-deoxy-glucopyranose from Gram-negative bacteria.