6-Substituted benzimidazoles as new nonpeptide angiotensin II receptor antagonists: synthesis, biological activity, and structure-activity relationships
作者:Uwe J. Ries、Gerhard Mihm、Berthold Narr、Kai M. Hasselbach、Helmut Wittneben、Michael Entzeroth、Jacobus C. A. van Meel、Wolfgang Wienen、Norbert H. Hauel
DOI:10.1021/jm00077a007
日期:1993.12
reported nonpeptidic angiotensin II (AII) receptor antagonists DuP753 (1) and Exp 7711 (2), we have designed and investigated novel substituted benzimidazoles. Systemic variation of several substituents at the benzimidazole ring positions 4-7 led to the finding that substitution in position 6 with acylamino groups results in highly active AII antagonists. Compounds with 6-membered lactam or sultam substituents
从最近报道的非肽类血管紧张素II(AII)受体拮抗剂DuP753(1)和Exp 7711(2)开始,我们设计并研究了新型取代的苯并咪唑。苯并咪唑环位置4-7上几个取代基的系统变化导致发现,位置6被酰基氨基取代会产生高活性的AII拮抗剂。在苯并咪唑的6位上具有6元内酰胺或sultam取代基的化合物在低纳摩尔范围内显示受体活性,但当口服给予大鼠时仅具有弱活性。相反,用碱性杂环类似地取代苯并咪唑部分产生有效的AII拮抗剂,其在口服后也被很好地吸收。该系列中活性最高的化合物33(BIBR 277),被选为临床发展的候选人。在分子模型研究的基础上,提出了这种新型的AII拮抗剂与AT1受体的结合模型。