A process is provided for preparing a conjugate of Formula (I-A) or (I) comprising a polypeptide (or a protein) containing n number of tyrosine units, where n is an integer greater than or equal to 1, dispersed within the amino acid chain having an amino terminus end (A1) and an acid terminus end (A2) of the protein or polypeptide (either the amino or acid terminus end can be the at least one tyrosine unit) and having a weight average molecular weight equal to or greater than 10,000 Daltons (10 kDa), wherein the conjugate comprises a number m of tyrosine conjugates (modified tyrosine residues) as depicted in Formula (I-A) or (I), where m is at least one and is less than or equal to n: where X, Lg, L and R are as defined herein.
提供了一种制备Formula(I-A)或(I)的共轭物的过程,包括包含n个
酪氨酸单元的
多肽(或蛋白质),其中n是大于或等于1的整数,在
氨基酸链中分散,具有蛋白质或
多肽的
氨基端(A1)和酸端(A2),其中重量平均分子量等于或大于10,000道尔顿(10 kDa),其中共轭物包括m个
酪氨酸共轭物(修饰的
酪氨酸残基),如Formula(I-A)或(I)中所示,其中m至少为1且小于或等于n:其中X、Lg、L和R如本文所定义。