Tr-PEG3，Tr-PEG2-OH

Fmoc-NMe-PEG4-NHS ester

AZD-PEG2-Azide

Fmoc-PEG6-NHS ester

Azido-PEG3-methyl ester

1,1,1-Trifluoroethyl-PEG2-azide

PEG18，HO-PEG17-OH

m-PEG6-SS-PEG6-methyl

Hydrox-PEG10-Tos，PEG10-Tos

3-(m-PEG8-ethoxycarbonyl)propanoic-NHS ester

DBCO-PEG4-Val-Cit-PAB-PNP

Fmoc-N-amido-PEG5-acid，Fmoc-NH-PEG5-CH2CH2COOH

m-PEG3-Tos

Fmoc-N-amido-PEG12-acid，Fmoc-NH-PEG12-CH2CH2COOH

Trityl-PEG8-azide

Mal-PEG4-Glu(OH)-NH-m-PEG24

m-PEG12-CH2CH2NHCH2CH2COOH，m-PEG12-NH-C2-acid

m-PEG6-acid，m-PEG5-CH2CH2COOH

m-PEG8-acid，m-PEG8-CH2CH2COOH

m-PEG3-acid，m-PEG2-CH2CH2COOH，二乙二醇单甲醚丙酸