1-Boc-azetidine-3-carboxylic acid
1-Boc-azetidine-3-carboxylic acid is a non-cleavable ADC linker used in the synthesis of antibody-dr_ug conjugates (ADCs). 1-Boc-azetidine-3-carboxylic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs