Boc-C1-PEG3-C4-OBn

Boc-C1-PEG3-C4-OBn (PROTAC Linker 15) is a PEG-based PROTAC linker used in the synthesis of various PROTACs, including PROTAC SGK3 degrader-1. PROTACs consist of two distinct ligands connected by a linker; one ligand binds to an E3 ubiquitin ligase, while the other specifically interacts with the target protein, enabling selective degradation of target proteins via the intracellular ubiquitin-proteasome system[1].