Imidazoline-modified benzylimidazolines as h5-HT1D/1B serotonergic ligands
摘要:
Sumatriptan, a h5-HT1D and h5-HT1B receptor agonist used clinically as a migraine-abortive, produces certain side effects thought to result from its affinity for h(5)-HT1B receptors. The present investigation extends our work with benzylimidazolines as novel non-tryptamine h5-(HT1D/1B) ligands. The effect of N-methylation, N-benzylation, ring-aromatization, and variation of the imidazoline ring on affinity both at h5-HT1D and h5-HT1B receptors was examined. Several compounds were identified with good affinity and enhanced(i.e., > 100-fold) h5-HT1D versus h5-HT1B selectivity. (C) 2001 Elsevier Science Ltd. All rights reserved.