t-Boc-N-amido-PEG1-NHS ester

t-Boc-N-amido-PEG1-NHS ester is a PEG linker containing NHS ester and Boc-protected amine moieties. The hydrophilic PEG spacer increases solubility in aqueous media. The Boc group can be deprotected under mild acidic conditions to form a free amine. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

Boc-N-PEG1-C2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

PEGs; Alkyl/ether

[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