Propargyl-PEG8-acid

Propargyl-PEG13-t-butyl ester

DBCO-PEG6-acid

DBCO-NHCO-PEG4-acid

DBCO-Sulfo-NHS ester

DBCO-PEG8-NHS ester

Boc-GlRuixiG3-endo-BCN

DBCO-PEG9-amine TFA salt

Propargyl-PEG7-t-butyl ester，Propargyl-PEG7-Boc

NH-bis(PEG3-t-butyl ester)，NH-bis(PEG3-Boc)

Tris (O-TBDMS)3

DBCO-C6-NHS ester

Propargyl-PEG8-amine

Propargyl-PEG13-alcohol

NH-bis(PEG4-Boc)，NH-bis(PEG4-C2-NH-Boc)

DBCO-C2-alcohol

m-PEG5-propargyl

Propargyl-PEG10-acid

m-PEG12-propargyl

N-(Amino-PEG3)-N-bis(PEG3-t-butyl)，N-(Amino-PEG3)-N-bis(PEG3-Boc)