An object of the present invention is to provide a technique that allows other molecules/substances to be more selectively linked to the N-terminus in a simple and efficient manner, even in natural proteins etc. This object is achieved by reacting a compound represented by formula (1) or a salt thereof, or a hydrate or solvate of the compound or a salt thereof with a protein and/or peptide.
本发明的目的是提供一种技术,使其他分子/物质能够更简单高效地与N-末端选择性地结合,即使是在
天然蛋白质等中也可以实现。通过将由式(1)或其盐,或该化合物或其盐的
水合物或溶剂化物与蛋白质和/或肽反应来实现该目的。