The efficient synthesis of the monosaccharide analogs of lipids A bearing two 3-acyloxytetradecanoyl and phosphoryl groups at the C-2, 3 and C-4 positions of the glucosamine skeleton is described. Also a preliminary analysis of their biological activities is presented.
and efficient strategy was established for the construction of RC-529 and its derivatives. Four conjugates of RC-529 derivatives with Tn antigen were synthesized and all elicited strong and T cell-dependent immune responses in mice without requiring external adjuvants. In addition, all antisera induced by these conjugates could specifically recognize, bind to and kill Tn-overexpressing cancer cells