137105-29-4Relevant academic research and scientific papers
Synthesis and biological activities of lipid A analogs possessing β-glycosidic linkage at 1-position
Fukase, Koichi,Ueno, Atsushi,Fukase, Yoshiyuki,Oikawa, Masato,Suda, Yasuo,Kusumoto, Shoichi
, p. 485 - 500 (2007/10/03)
New lipid A analogs having acidic groups β-glycosidically linked at the 1-position were synthesized in order to investigate the structural requirement for immunostimulating and endotoxic activity of lipid A. The β-(phosphonoxy)ethyl (PE) and carboxymethyl (CM) analogs of Escherichia coli type having six acyl groups and those of the biosynthetic precursor type having four acyl groups were synthesized via a divergent synthetic route. The E. coli type β-(phosphonoxy)-ethyl analog, which was previously reported to be not endotoxic, showed strong immunostimulating activity comparable to the natural-type α-analog. The acidic functional groups are concluded to be essential but their strict spatial arrangement is not required for expression of the biological activity.
