BCN-endo-PEG2-maleimide is an ADC linker containing 4 PEG units. BCN-endo-PEG2-maleimide contains the lyophilic bidentate macrocyclic ligand endo-BCN, which can further synthesize macrocyclic complexes. In click chemistry, endo-BCN can react with molecules containing azide groups in SPAAC. Its maleimide group degrades in aqueous media and has been used in drug delivery studies.
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