Azide-PEG4-Val-Cit-Doxorubicin is a precursor of antibody drug conjugates (ADCs). The azide group can react with alkyne, BCN, DBCO, and other alkynes via Click Chemistry. Doxorubicin is an anthracycline antibiotic with antineoplastic activity. The PEG4 spacer elevates the hydrophilicity of the compound.
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