m-PEG4-Ms，m-PEG3-OMs

m-PEG16-acid

m-PEG6-alcohol，Hexaethylene glycol monomethyl ether

THP-PEG6，THP-PEG5-OH

1,1,1-Trifluoroethyl-PEG4-azide

m-PEG4-t-butyl ester，m-PEG4-Boc

Azide-PEG2-Tos

HydroxRuixiG3-SS-PEG3-alcohol

4-Azide-TFP-Amide-PEG4-acid

m-PEG4-alcohol，Tetraethylene glycol monomethyl ether

m-PEG8-Mal

m-PEG13-Ms

m-PEG12-alcohol，m-PEG12-OH

Hydrox-PEG4-Tos，PEG4-Tos

Azido-PEG1-methyl ester

Fmoc-NH-PEG8-CH2COOH

m-PEG3-acid chloride，m-PEG3-Propanoyl chloride

PTDA-PEG4-Azide

m-PEG48-Mal

Azide-PEG8-Tos