N-(Boc-PEG1)-N-bis(PEG2-propargyl) is a polyethylene glycol (PEG)-derived linker utilized in the synthesis of proteolysis-targeting chimeras (PROTACs)[1].
N-(Propargyl-PEG2)-N-Boc-PEG3-t-butyl ester is a polyethylene glycol (PEG)-based linker employed for the synthesis of proteolysis-targeting chimeras (PROTACs) [1].