2-Phenethylbenzimidazole, 2-phenethylbenzoxazole and 2-phenethylbenzothiazole derivatives were synthesized to explore the structural features of the serotonin 5-HT2B receptor antagonists. Those molecules were designed to recognize the 5-HT2B receptor and to discriminate it from the 5-HT2A and 5-HT2C subtypes. All compounds were characterized by binding affinity determination for 5-HT2A and 5-HT2C subtypes and antagonistic activity for 5-HT2B receptor in rat stomach fundus. None of the new compounds showed affinity for 5-HT2A and 5-HT2C subtypes, but some of them displayed antagonistic activity in rat stomach fundus at micromolar concentrations.

Benzimidazole, benzoxazole and benzothiazole derivatives as 5HT(2B) receptor ligands. Synthesis and preliminary pharmacological evaluation

GIORGIONI, Gianfabio;MARUCCI, Gabriella;CLAUDI, Francesco
2005-01-01

Abstract

2-Phenethylbenzimidazole, 2-phenethylbenzoxazole and 2-phenethylbenzothiazole derivatives were synthesized to explore the structural features of the serotonin 5-HT2B receptor antagonists. Those molecules were designed to recognize the 5-HT2B receptor and to discriminate it from the 5-HT2A and 5-HT2C subtypes. All compounds were characterized by binding affinity determination for 5-HT2A and 5-HT2C subtypes and antagonistic activity for 5-HT2B receptor in rat stomach fundus. None of the new compounds showed affinity for 5-HT2A and 5-HT2C subtypes, but some of them displayed antagonistic activity in rat stomach fundus at micromolar concentrations.
2005
262
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/112912
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