SUGAR CHAIN-ATTACHED LINKER, COMPOUND CONTAINING SUGAR CHAIN-ATTACHED LINKER AND PHYSIOLOGICALLY ACTIVE SUBSTANCE OR SALT THEREOF, AND METHOD FOR PRODUCING SAME
[Problem] To provide a carrier linker that is capable of improving the water solubility of a physiologically active substance and more quickly releasing the physiologically active substance under specific conditions without utilizing light or enzymatic cleavage. [Solution] A novel sugar chain-attached linker comprising a sugar chain that is attached as a carrier.