The present invention relates to method for connecting a protein and a drug to a protein drug conjugate, wherein the drug is linked to the protein through a specific branched linker, said branched linker comprises a peptide chain and is derived from o-hydroxy p-amino benzylic alcohol, wherein the peptide chain is connected to the phenyl ring via the p-amino group, the drug is connected to the phenyl ring via the benzylic alcohol moiety, and the protein is connected to the phenyl ring via the o-hydroxy group; further to a process for the preparation of said protein-drug-conjugates via various intermediates, to the pharmaceutical use of such protein drug conjugates, such as methods of controlling the growth of undesirable cells, to pharmaceutical compositions comprising such protein drug conjugates, and to intermediates of the preparation of the protein drug conjugates.
本发明涉及将蛋白质和药物连接成蛋白质药物共轭物的方法,其中药物通过特定的支链连接体与蛋白质连接,所述支链连接体包括肽链,并来自邻羟基
对氨基苯甲醇,其中肽链通过对
氨基与苯基环连接,药物通过
苯甲醇分子与苯基环连接,蛋白质通过邻羟基与苯基环连接;关于通过各种中间体制备所述蛋白质-药物共轭物的工艺,关于此类蛋白质-药物共轭物的药物用途(如控制不良细胞生长的方法),关于包含此类蛋白质-药物共轭物的药物组合物,以及关于制备蛋白质-药物共轭物的中间体。