Exatecan-2-(aminomethoxy)acetamide-Gly-Phe-Gly-Gly-PEG2-endo-BCN represents a tetrapeptide derivative which may be employed in the development of antibody drug conjugates (ADCs). The BCN group is a click chemistry handle which readily reacts with azide groups on a target molecule. Exatecan is a structural analog of camptothecin and shows anticancer activity. The PEG2 spacer imparts hydrophilicity.
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