2-(Azido-PEG3-amido)-1,3-bis(t-butyl ester)

Bromo-PEG4-CH2CO2tBu，Br-PEG4-CH2-Boc

3-(2-bromoacetamido)propanoic acid NHS ester，N-SUCCINIMIDYL 3-(BROMOACETAMIDO)PROPIONATE

N-(Azido-PEG3)-PEG4-t-butyl ester

Bromo-PEG3-acid，Bromo-PEG3-C2-acid

N-Boc-N-bis(PEG4-azide)

Bromo-PEG4-bromide，1,14-Dibromo-3,6,9,12-tetraoxatetradecane

N-(Azido-PEG10)-N-(PEG10-NH-Boc)-PEG10-acid

Bromo-PEG5-alcohol，Br-PEG5-OH

Bromo-PEG2-bromide，1,8-dibromo-3,6-dioxaoctane

Bromo-PEG6-alcohol，Br-PEG6-OH

Bromoacetamido-PEG2-Boc-amine，Bromoacetamido-C2-PEG2-NH-Boc

Bromo-PEG6-t-butyl ester，Bromo-PEG6-Boc

17-(Bromoacetamido-PEG9-ethylcarbamoyl)pentanoic t-butyl ester

Bromoacetamido-PEG5-DOTA

Bromo-PEG3-CH2CO2H，Br-PEG3-CH2COOH

N-(Azido-PEG3)-NH-PEG3-t-butyl ester

17-(Bromoacetamido-PEG9-ethylcarbamoyl)nonanoic t-butyl ester

Bromo-PEG4-azide

t-butyl ester-PEG25-Amide-Tri(3-methoxypropanamide-PEG23-Azide) Methane