DBCO-PEG4-triethoxysilane is a PEG linker containing a triethoxysilane moiety and a DBCO group. Triethoxysilane is commonly used for surface modifications. DBCO group can react with azide-bearing compounds or biomolecules to form a stable triazole linkage without copper catalyst. The hydrophilic PEG chain increasse the water solubility of a compound in aqueous media.
DBCO-PEG4-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-triethoxysilane is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.