Hydrox-PEG3-Tos，Tos-PEG3

Azide-PEG6-Tos

m-PEG7-(CH2)3-alcohol，m-PEG7-CH2-OH

m-PEG12-NHS ester

Azido-PEG1-Val-Cit-PAB-OH

m-PEG2-azide，1-(2-Azidoethoxy)-2-methoxyethane

m-PEG11-azide

m-PEG36-azide

m-PEG7-azide

Azidoethyl-PEG2-t-Butyl ester，Azidoethyl-SS-PEG2-Boc

m-PEG5-Ms

Fmoc-NH-PEG11-CH2COOH

BCN-PEG3-VC-PFP Ester

Fmoc-PEG6-alcohol，Fmoc-NH-PEG6-alcohol

m-PEG4-(CH2)3-methyl ester，m-PEG4-CH2-methyl ester

Fmoc-PEG8-NHS ester，Fmoc-NH-PEG8-NHS ester

m-PEG7-aldehyde，m-PEG6-CH2CH2CHO

Azido-PEG3-phosphonic acid ethyl ester

THP-SS-PEG1-Tos

Azido-PEG4-oxazolidin-2-one