Benzimidazole, Benzoxazole and Benzothiazole Derivatives as 5HT2B Receptor Ligands. Synthesis and Preliminary Pharmacological Evaluation
作者:G. Giorgioni、B. Accorroni、A. Di Stefano、G. Marucci、A. Siniscalchi、F. Claudi
DOI:10.1007/s00044-005-0125-z
日期:2005.2
2-Phenethylbenzimidazole, 2-phenethylbenzoxazole and 2phenethylbenzothiazole 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.
10.1055/a-2335-8677
作者:Xie, Liangjun、Chen, Lili、Xu, Senmiao
DOI:10.1055/a-2335-8677
日期:——
enantioselective secondary benzylic C–Hborylation using benzothiazole as the directing group. Various monosubstituted 2-arylalkylbenzo[d]thiazole were well-tolerated, affording the corresponding products in moderate to good yields with good enantioselectivity. The C–B bond in one borylated product could undergo stereospecific transformations to form a series of C–C and C–heteroatom bonds.