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
摘要:
The cationic (eta(6)-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 endoprotemase papain in a site-directed and covalent fashion as shown by enzymatic and ESI-MS studies. (C) 2008 Elsevier Ltd. All rights reserved.