Design, Synthesis, and Structure−Activity Relationships of Novel Non-Imidazole Histamine H<sub>3</sub> Receptor Antagonists
作者:Ian D. Linney、Ildiko M. Buck、Elaine A. Harper、S. Barret Kalindjian、Michael J. Pether、Nigel P. Shankley、Gillian F. Watt、Paul T. Wright
DOI:10.1021/jm990952j
日期:2000.6.1
8.38 +/- 0.10), 31, exhibit high affinity for the histamine H(3) receptor. Antagonists 30 and 31 demonstrate significant selectivity over the other histamine, H(1) and H(2), receptor subtypes and a 100-fold selectivity in the sigma(1) binding assay. Compounds 30and 31 are the most potent, selective non-imidazole histamine H(3) receptor antagonists reported in the literature to date.
基于低亲和力配体dimaprit(pK(I)7.32 +/- 0.12,pK(B)5.93 +/- 0.17)已经制备了新型,有效和选择性的非咪唑组胺H(3)受体拮抗剂。详细的结构活性研究表明,N-(4-氯苄基)-N-(6-吡咯烷-1-基己基)胍(pK(I)8.38 +/- 0.21,pK(B)8.39 +/- 0.13), 30和N-(4-氯苄基)-N-(7-吡咯烷-1-基庚基)胍(pK(I)8.78 +/- 0.12,pK(B)8.38 +/- 0.10)31显示出高亲和力组胺H(3)受体。拮抗剂30和31表现出对其他组胺H(1)和H(2)受体亚型的显着选择性,并且在sigma(1)结合测定中具有100倍的选择性。化合物30和31是迄今为止文献中报道的最有效的,选择性的非咪唑组胺H(3)受体拮抗剂。