E3 ligase Ligand-Linker Conjugates 10 (S,R,S)-AHPC-PEG2-butyl chloride VH032-PEG2-C4-Cl VHL Ligand-Linker Conjugates 7 L-Prolinamide, N-[2-[2-[(6-chlorohexyl)oxy]ethoxy]acetyl]-3-methyl-L-valyl-4-hydroxy-N-[[4-(4-methyl-5-thiazolyl)phenyl]methyl]-, (4R)- (S,R,S)-AHPC-2-2-6-Cl (2S,4R)-1-((S)-2-(2-(2-((6-Chlorohexyl)oxy)ethoxy)acetamido)-3,3-dimethylbutanoyl)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide, (S,R,S)-AHPC-2-2-6-Cl, Crosslinker?E3 ligase ligand conjugate, Protein degrader building block for PROTAC? research, Template for synthesis of targeted protein degrader, VH032 conjugate