VH032 analogue-1 is a VH032 analog that acts as a ligand for VHL, recruiting von Hippel-Lindau (VHL) protein. VH032 analogue-1 will remove the protective group under acidic conditions and be directly used for PROTAC molecular synthesis. VH032 analogue-1 is a key intermediate in the synthesis of PROTACs based on VHL ligands.