• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Journal of Medicinal Chemistry: Chimie Therapeutique >Non-imidazole histamine H3 ligands. Part III. New 4-n-propylpiperazines as non-imidazole histamine H3-antagonists.
【24h】

Non-imidazole histamine H3 ligands. Part III. New 4-n-propylpiperazines as non-imidazole histamine H3-antagonists.

机译：非咪唑组胺H3配体。第三部分新型4-正丙基哌嗪作为非咪唑组胺H3拮抗剂。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In search for a new lead of non-imidazole histamine H3-receptor antagonists, a series of 1[(2-thiazolopyridine)-4-n-propyl]piperazines, the analogous 1-[(2-oxazolopyridine)-4-npropyl]piperazines, 1-[(2-benzothiazole)-4-n-propyl]piperazine and 1-[(2-benzooxazole)4-n-propyl]piperazine were prepared and in vitro tested as H3-receptor antagonists (the electrically evoked contraction of the guinea-pig jejunum). It appeared that by comparison of homologous pairs the thiazolo derivatives have slightly higher activity than their oxazolo analogues. The most potent compound of these series is the 1-(2-thiazolo[4,5-c]pyridine)-4-n-propylpiperazine (3c) with pA2 = 7.25 (its oxazole analogue (4g) showed pA2 = 6.9). The structure-activity relationships for compounds with various positions of the nitrogen in the benzene ring for the thiazoles compared with oxazoles are discussed.
机译：为了寻找新的非咪唑组胺H3受体拮抗剂，一系列的1 [（（2-噻唑并吡啶）-4-正丙基]哌嗪，类似的1-[（（2-恶唑并吡啶）-4-正丙基]]制备了哌嗪，1-[（（2-苯并噻唑）-4-正丙基]哌嗪和1-[（（2-苯并恶唑）4-正丙基]哌嗪，并在体外对其作为H3受体拮抗剂进行了测试（电诱发的收缩）豚鼠空肠）。通过比较同源对，噻唑洛衍生物似乎比它们的恶唑类似物具有更高的活性。这些系列中最有效的化合物是1-（2-噻唑并[4,5-c]吡啶）-4-正丙基哌嗪（3c），pA2 = 7.25（其恶唑类似物（4g）显示pA2 = 6.9）。讨论了与恶唑相比，噻唑在苯环中氮原子位置不同的化合物的结构活性关系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号