Propargyl-PEG6-amine
Amino-PEG9-acid
FMoc-NH-PEG9-CH2CH2COOH
Propargyl-PEG8-amine
H2N-PEG24-CH2CH2COOtBu
Propargyl-PEG13-alcohol
Propargyl-PEG5-alcohol
Mal-Amido-PEG4-acid