N-(Amino-PEG5)-N-bis(PEG4-acid) is a PEG-based PROTAC linker used in the synthesis of PROTACs. N-(Amino-PEG5)-N-bis(PEG4-acid) contains an amino group with two terminal carboxylic acids[1].
PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
















