Potential irreversible inhibitors of acetylcholinesterase: N-trimethyl-N‘-iodoacetyl diaminoalkane iodides

Abstract
Potential irreversible inhibitors of acetylcholinesterase based on N-trimethyl-N'-iodacetyl diaminoalkane iodide Me3N+[CH2]n-NHCO·CH2I·I-, (I; n = 4) and (II; n = 2) have been prepared. (I) and (II) are both competitive inhibitors of the enzyme with Ki, 5·9 times 10−4m and 1·2 times 10−3m respectively. (I) is a partial agonist and (II) is a true agonist at the muscarinic receptor of guinea-pig ileum.