(S,R,S)-AHPC-Linker-Alcohol

(S,R,S)-AHPC-CO-C1-OH

(S,R,S)-AHPC-CO-C2-OH

(S,R,S)-AHPC-CO-C3-OH

(S,R,S)-AHPC-CO-C4-OH

(S,R,S)-AHPC-CO-C5-OH

(S,R,S)-AHPC-CO-C6-OH

(S,R,S)-AHPC-acetamido-O-PEG1-OH

(S,R,S)-AHPC-acetamido-O-PEG2-OH

(S,R,S)-AHPC-acetamido-O-PEG3-OH

(S,R,S)-AHPC-acetamido-O-PEG4-OH

(S,R,S)-AHPC-acetamido-O-PEG5-OH

(S,R,S)-AHPC-acetamido-O-PEG6-OH

(S,R,S)-AHPC-CO-PEG2-OH

(S,R,S)-AHPC-CO-PEG3-OH

(S,R,S)-AHPC-CO-PEG4-OH

(S,R,S)-AHPC-CO-PEG5-OH

(S,R,S)-AHPC-CO-PEG6-OH

(S,R,S)-AHPC-CO-PEG7-OH