N1,N4-Bisazidospermine bistosylate

Cbz-N-amido-PEG8-acid，Cbz-NH-PEG8-C2-acid

Cbz-N-amido-PEG4-acid，Cbz-NH-PEG4-C2-acid

Acid-PEG5-t-butyl ester，Acid-PEG5-C2-Boc

Ald-Ph-PEG4-NHS ester，Ald-Ph-amido-PEG4-C2-NHS ester

Azido-PEG5-CH2CO2-t-Bu，Azido-PEG5-Boc

5-(Azido-PEG4)-pent-2-yn-1-Ol

Azido-PEG1-PFP ester

Cbz-N-amido-PEG20-acid

Azido-PEG2-NHS ester，N3-PEG2-C2-NHS ester

Acid-PEG6-mono-methyl ester

Azido-PEG3-PFP ester

N1,N5-Bis-Boc-spermidine

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

BB1-acid

Ald-Ph-PEG3-O-NH-Boc，Ald-Ph-PEG4-NH-Boc

Ald-Ph-PEG4-t-butyl ester，Ald-Ph-PEG4-Boc

Ald-PEG4-azide，N3-PEG4-CH2CH2CHO

Azido-PEG1-CH2CO2H，(2-Azidoethoxy)acetic acid

Azido-PEG2-sulfonic acid，Azido-PEG2-C2-sulfonic acid