m-PEG4-alcohol，Tetraethylene glycol monomethyl ether

m-PEG7-4-nitrophenyl carbonate

m-PEG12-azide

m-PEG11-Tos

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

m-PEG3-S-Acetyl

Hydroxy-PEG20-t-butyl ester，Hydroxy-PEG20-Boc

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

Hydrox-PEG21-Tos，PEG21-Tos

m-PEG4-Mal，m-PEG4-amino-Mal

Hydrox-PEG3-Tos，Tos-PEG3

C11-PEG6-alcohol

PEG17，HO-PEG16-OH

Fmoc-NH-PEG6-CH2COOH

m-PEG7-azide

Hydroxy-PEG4-t-butyl ester，Hydroxy-PEG4-(CH2)2-Boc

m-PEG8-azide

Fmoc-PEG24-alcohol

m-PEG23-alcohol

Hydrox-PEG10-Tos，PEG10-Tos