点击放大环状聚乙二醇-聚乙二醇臂-羟基(n=24)148-crown-49-PEG24-OH; Hydroxyl-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=24)
点击放大环状聚乙二醇-聚乙二醇臂-炔基(n=24)148-crown-49-PEG24-Alkyne; Terminal alkyne-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=24)