N-(Boc-PEG4)-NH-PEG4-t-butyl ester，N-(Boc-PEG4)-NH-PEG4-NH-Boc

endo-BCN-PEG2-alcohol

NH2-PEG4-Glu(OH)-NH-m-PEG24

Tri(Amino-PEG3-amide)-amine TFA salt

Propargyl-PEG4-CH2CO2tBu

Propargyl-PEG1-t-butyl ester，Propargyl-PEG1-Boc

Propargyl-PEG4-NHS ester

IA-PEG-NHS，Iodoacetyl-PEG-NHS，MW：10000

N-(Amino-PEG10)-N-bis(PEG10-azide)

N-(Amino-PEG4)-N-bis(PEG4-t-butyl ester)，N-(Amino-PEG4)-N-bis(PEG4-Boc)

N-(amine-PEG23)-N-bis(PEG3-azide) TFA salt

t-Boc-N-amido-PEG2-amine，N-Boc-3,6-dioxaoctane-1,8-diamine

m-PEG4-propargyl

endo-BCN-PEG4-amine

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

D-Amino-PEG6-Thalidomide TFA salt

t-Boc-N-amido-PEG1-amine，BOCNH-PEG1-CH2CH2NH2，Amino-PEG2-NH-Boc

1,1,1-Trifluoroethyl-PEG4-amine

VS-PEG-NHS，Vinylsulfone-PEG-NHS，MW：2000

Amino-PEG2-alcohol，Diglycolamine，二甘醇胺 (DGA)