A Staphylococcus aureus lipoteichoic acid (LTA) derived structural variant with two diacylglycerol residues
作者:A STADELMAIER、I FIGUEROAPEREZ、S DEININGER、S VONAULOCK、T HARTUNG、R SCHMIDT
DOI:10.1016/j.bmc.2006.05.055
日期:2006.9.15
Based on 1,2-O-isopropylidene-sn-glycerol five chiral building blocks containing differently modified glycerol residues were required for the synthesis of the target molecule 2. One of these building blocks is diacylglyceryl beta-gentiobioside carrying a phosphite residue at 6b-O position. Ligation of these five building blocks led to the desired glycerol phosphate backbone to which D-alanyl residues were attached, thus generating after O-deprotection the target molecule 2, a bisamphiphilic structural variant of Staphylococcus aureus LTA. This compound displayed higher potency in terms of cytokine release by human blood leukocytes than the monoamphiphilic variant LTA. (c) 2006 Elsevier Ltd. All rights reserved.