Cbz-N-amido-PEG2-acid，Cbz-NH-PEG2-C2-acid

Azido-PEG16-t-butyl ester，Azido-PEG16-Boc

Azido-PEG3-phosphonic acid

Ald-Ph-PEG24-NHS ester

Azido-PEG6-PFP ester

Ald-CH2-PEG8-azide

Azido-Amido-PEG8-t-butyl ester

1,7-BIS-BOC-1,4,7-TRIAZAHEPTANE

Alkynyl Myristic Acid

Ald-Ph-PEG4-acid，Ald-Ph-amido-PEG4-C2-acid

4-Hydroxy-butyric acid tert-butyl ester，tert-Butyl 4-hydroxybutanoate

Acid-PEG5-TEMPO

17-(Azide-PEG6-ethylcarbamoyl)heptadecanoic t-butyl ester

Acid-PEG3-PFP ester

2-((Azido-PEG8-carbamoyl)methoxy)acetic acid

Azido-PEG8-CH2CO2-PFP

Acid-PEG6-t-butyl ester，Acid-PEG6-C2-Boc

Ald-PEG1-t-butyl ester，Ald-PEG1-C2-Boc

Ald-CH2-PEG3-azide

m-PEG4-benzaldehyde