Design and regioselective synthesis of a new generation of targeted chemotherapeutics. Part 1: EC145, a folic acid conjugate of desacetylvinblastine monohydrazide

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Abstract

An efficient synthesis of the folate receptor (FR) targeting conjugate EC145 is described. EC145 is a water soluble derivative of the vitamin folic acid and the potent cytotoxic agent, desacetylvinblastine monohydrazide. Both molecules are connected in regioselective manner via a hydrophilic peptide spacer and a reductively labile disulfide linker.

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Acknowledgment

We thank Indiana 21st Century Grant (#511040805) for financial support.

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