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  • Title: Anionic cyclophanes as potential reversal agents of muscle relaxants by chemical chelation.
    Author: Cameron KS, Fielding L, Mason R, Muir AW, Rees DC, Thorn S, Zhang MQ.
    Journal: Bioorg Med Chem Lett; 2002 Mar 11; 12(5):753-5. PubMed ID: 11858995.
    Abstract:
    A series of carboxyl-containing cyclophanes have been designed and synthesised as chemical chelators (or host molecules) of cationic muscle relaxant drugs (or guest molecules). Three of these cyclophane derivatives, 1-3, have been shown by NMR to form 1:1 complexes with the muscle relaxants pancuronium, and gallamine, in D(2)O, with association constants up to 10(4) M(-1). When tested in an in vitro chick biventer muscle preparation, the cyclophanes reversed the neuromuscular block induced by pancuronium and gallamine, with having the most effective reversal against pancuronium (EC(50) 40 microM.
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