Azido-PEG4-NHS-ester is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.
N-(Azido-PEG4)-N-Boc-PEG4-NHSester is a PEG-based PROTAC linker featuring a terminal azide group. It is commonly employed in the synthesis of PROTACs[1].