Functionalized cationic (η6-arene)ruthenium(II) complexes for site-specific and covalent anchoring to papain from papaya latex. Synthesis, X-ray structures and reactivity studies (original) (raw)

Tetrahedron Letters, 2008

Abstract

The cationic (η6-arene)ruthenium complexes 6–9 containing a chloroacetamide or a maleimide functional group on the arene ligand were synthesized and successfully used to introduce ruthenium(II) species to the active site of the cysteine endoproteinase papain in a site-directed and covalent fashion as shown by enzymatic and ESI-MS studies.

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