点击放大环状聚乙二醇-聚乙二醇臂-氨基(n=16)100-crown-33-PEG16-NH2; Primary amine-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=16)
点击放大环状聚乙二醇-聚乙二醇臂-炔基(n=16)100-crown-33-PEG16-Alkyne; Terminal alkyne-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=16)