Fmoc-NH-PEG1-CH2COOH

Hydroxy-PEG10-t-butyl ester，Hydroxy-PEG10-Boc

Fmoc-PEG8-alcohol

m-PEG5-Tos

m-PEG1-acid，3-Methoxypropanoic acid

m-PEG3-alcohol，m-PEG3-OH

m-PEG8-Tos

Dimethylanaline-PEG35-alcohol

Fmoc-NH-PEG11-CH2COOH

Hydroxy-PEG5-CH2CO2tBu，Hydroxy-PEG5-CH2-Boc

m-PEG10-NHS ester

Fmoc-N-amido-PEG1-acid，Fmoc-NH-PEG1-C2-acid

Hydroxy-PEG2-methyl ester，Methyl 3-[2-(2-hydroxyethoxy)ethoxy]propanoate

PEG-14，HO-PEG13-OH

m-PEG7-alcohol，O-Methyl-heptaethylene glycol

m-PEG48-Mal

m-PEG8-Mal

PEG25，HO-PEG24-OH

m-PEG17-NHS ester

Octanethyl glycol