(S,R,S)-AHPC-Boc-trans-3-aminocyclobutanol-Pip-CH2COOH, also known as VH032-Boc-trans-3-aminocyclobutanol-Pip-CH2COOH, is a conjugate compound comprising a ligand-linker that targets E3 ligase and, on one end, features a VHL ligand. It is employed in PROTAC technology applications.