The invention relates to materials and methods of conjugating a water soluble polymer to an oxidized carbohydrate moiety of a therapeutic protein comprising contacting the oxidized carbohydrate moiety with an activated water soluble polymer under conditions that allow conjugation. More specifically, the present invention relates to the aforementioned materials and methods wherein the water soluble polymer contains an active aminooxy group and wherein an oxime or hydrazone linkage is formed between the oxidized carbohydrate moiety and the active aminooxy group on the water soluble polymer, and wherein the conjugation is carried out in the presence of a nucleophilic catalyst.
本发明涉及将
水溶性聚合物与治疗蛋白质的氧化
碳水化合物分子共轭的材料和方法,包括在允许共轭的条件下将氧化
碳水化合物分子与活化的
水溶性聚合物接触。更具体地说,本发明涉及上述材料和方法,其中
水溶性聚合物含有活性
氨基氧基,氧化的
碳水化合物分子与
水溶性聚合物上的活性
氨基氧基之间形成
肟或腙连接,并且在亲核催化剂存在下进行共轭。