t-Boc-aminooxy-PEG1-propargyl

m-PEG12-propargyl

Propargyl-PEG8-acid

Propargyl-PEG5-CH2CO2H

m-PEG4-propargyl

Propargyl-PEG5-t-butyl ester，Propargyl-PEG5-Boc

Propargyl-PEG3-NHS ester

Propargyl-PEG5-CH2CO2tBu

Propargyl-PEG2-acid

Propargyl-PEG4-5-nitrophenyl carbonate

Propargyl-PEG4-(CH2)3-acid

Propargyl-PEG10-t-butyl ester，Propargyl-PEG10-Boc

Propargyl-PEG4-CH2CO2-NHS

Propargyl-PEG4-amine

Propargyl-PEG6-Ms

Propargyl-PEG4-methylamine

Bis-propargyl-PEG12

Propargyl-PEG9-bromide

Propargyl-PEG4-t-butyl ester，Propargyl-PEG4-Boc

Propargyl-PEG3-alcohol