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endo-BCN-pentanoic acid is a click chemistry reagent containing a BCN group and a terminal carboxylic acid. The BCN group can react with azide-tagged compounds or biomolecules. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond.

5-endo-BCN-pentanoic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 5-endo-BCN-pentanoic acid is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

Alkyl-Chain

[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