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t-Boc-Aminooxy-PEG3-thiol is a crosslinker containing a t-Boc-aminooxy group and a thiol group. The thiol group reacts with maleimide, OPSS, vinylsulfone and transition metal surfaces including gold, The protected aminoxy can be deprotected under mild acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.

Boc-Aminooxy-PEG3-thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

PEGs

[1] An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562 DOI:10.1016/j.ebiom.2018.09.005