[EN] CONJUGATES AND CONJUGATING REAGENTS<br/>[FR] CONJUGUÉS ET RÉACTIFS DE CONJUGAISON
申请人:POLYTHERICS LTD
公开号:WO2016063006A1
公开(公告)日:2016-04-28
The invention relates to a conjugate of a protein or peptide with a therapeutic, diagnostic or labelling agent, said conjugate containing a protein or peptide bonding portion and a polyethylene glycol portion; in which said protein or peptide bonding portion has the general formula: in which Pr represents said protein or peptide, each Nu represents a nucleophile present in or attached to the protein or peptide, each of A and B independently represents a C1-4alkylene or alkenylene chain, and W represents an electron withdrawing group or a group obtained by reduction of an electron withdrawing group; and in which said polyethylene glycol portion is or includes a pendant polyethylene glycol chain which has a terminal end group of formula -CH2CH2OR in which R represents a hydrogen atom, an alkyl group, or an optionally substituted aryl group. Also claimed are a method for making such a conjugate, and novel reagents useful in that method.
该发明涉及与治疗、诊断或标记试剂结合的蛋白质或肽的共轭物,该共轭物包含蛋白质或肽结合部分和聚乙二醇部分;其中所述蛋白质或肽结合部分具有一般式:其中Pr代表所述蛋白质或肽,每个Nu代表存在于蛋白质或肽中或附着于其上的亲核试剂,A和B各自独立地代表C1-4烷基或烯基链,W代表电子吸引基团或通过还原电子吸引基团获得的基团;以及所述聚乙二醇部分是或包括具有一端基团为-CH2CH2OR的挂链聚乙二醇链,其中R代表氢原子、烷基或可选择取代的芳基。还声明了一种制备这种共轭物的方法以及在该方法中有用的新试剂。