Mal-PEG4-Lys(TFA)-NH-m-PEG24

3-(Azido-PEG5-amino)propanol

m-PEG5-nitrile

m-PEG16-NHS ester

m-PEG17-acid

m-PEG25-acid

m-PEG8-thiol，巯基八甘醇单甲醚

3-(m-PEG8-ethoxycarbonyl)propanoic acid，m-PEG8-ethoxycarbonyl-propanoic acid

Fmoc-PEG3-NHS ester，Fmoc-PEG3-C2-NHS ester

Fmoc-NH-PEG2-CH2COOH，Fmoc-8-amino-3,6-dioxaoctanoic acid

Fmoc-NH-PEG12-CH2COOH

m-PEG6-CH2COOH

m-PEG10-NHS ester

PEG25，HO-PEG24-OH

m-PEG13-NHS ester

Fmoc-PEG4-NHS ester

Propargyl-PEG1-SS-PEG1-propargyl

m-PEG8-Tos

m-PEG7-acid，m-PEG6-CH2CH2COOH

m-PEG11-CH2CO2H