Neurochemistry of Aging. 2. Design, Synthesis, and Biological Evaluation of Halomethyl Analogues of Choline with High Affinity Choline Transport Inhibitory Activity

Donald J. Abraham, Donald J. Abraham, Jehangir S. Mistry, Donald J. Abraham, Alan P. Kozikowski, Israel Hanin

Research output: Contribution to journalArticlepeer-review

Abstract

The design, synthesis, and testing of several halomethyl analogues of choline and acetylcholine as potential cholinotoxins is described. The compounds were evaluated for their ability to inhibit high-affînity choline transport and their affinity toward postsynaptic muscarinic receptors. Among the analogues tested, bromomethyl and iodomethyl analogues of choline were found to be the most potent inhibitors of the high affinity choline transport system. Introduction of a β-methyl group in the halomethyl analogues drastically reduced their potencies. The bromomethyl and iodomethyl analogues were further investigated for their effects on choline acetyltransferase activity, acetylcholinesterase activity and QNB binding. Neither compound possesses significant ability to alter any of the above cholinergic markers, except at very high concentrations. These results suggest that the bromomethyl and iodomethyl choline analogues may be used as specific inhibitors of the presynaptic high-affinity choline transport system.

Original languageEnglish (US)
Pages (from-to)2031-2036
Number of pages6
JournalJournal of medicinal chemistry
Volume34
Issue number7
DOIs
StatePublished - Jul 1 1991

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery

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