4-Alkynylphenyl Imidazolylpropyl Ethers as Selective Histamine H<sub>3</sub>-Receptor Antagonists with High Oral Central Nervous System Activity
作者:Michael Krause、Xavier Ligneau、Holger Stark、Monique Garbarg、Jean-Charles Schwartz、Walter Schunack
DOI:10.1021/jm9802970
日期:1998.10.1
useful H3-receptor antagonists, we prepared novel 4-alkynylphenyl ether derivatives of 3-(1H-imidazol-4-yl)propanol in a convenient synthetic route. All compounds were tested for in vitro and in vivo H3-receptor antagonist activity as well as for H3-receptor selectivity versus H1- and H2-receptors. The presented 4-alkynylphenyl ethers are highly potent and selective H3 antagonists showing oral activity
为了寻找有效的和治疗上有用的H3-受体拮抗剂,我们以方便的合成方法制备了3-(1H-咪唑-4-基)丙醇的新型4-炔基苯基醚衍生物。测试了所有化合物的体外和体内H3受体拮抗剂活性以及相对于H1和H2受体的H3受体选择性。提出的4-炔基苯基醚是高效和选择性的H3拮抗剂,具有口服活性和改善的脑渗透性。特别是4-乙炔基苯基3-(1H-咪唑-4-基)丙基醚(14a)显示出惊人的体外和体内活性,-log Ki值为8.6,ED50值为0.12 mg / kg。目前,14a是体内最有效的H3受体拮抗剂,因此可能是治疗中枢神经系统(CNS)的H3受体依赖性疾病的潜在药物。