1. The invention relates to an immunogenic composition, composed of an isolated polymer, wherein said polymer is a repeating disaccharide having the formula →4)P→3-alpha-D-Gal-1→3-P→2/7-6d-alpha-D-ido-Hep-(1→,
or →4)P→3-alpha-D-Gal-1→3-P→2-L-glycero-alpha-D-ido-Hep-(1→,
wherein P is O-methyl phosphoramidate present in non-stoichiometric amounts.
本发明涉及一种由分离聚合物组成的免疫原组合物,其中所述聚合物是一种重复二糖,其式为:→4)P→3-α-D-Gal-1→3-P→2/7-6d-α-D-ido-Hep-(1→、
or →4)P→3-alpha-D-Gal-1→3-P→2-L-glycero-alpha-D-ido-Hep-(1→,
其中 P 为 O-甲基
磷酰胺,以非几何量存在。