Synthesis of 2-imidazolidinylidene propanedinitrile derivatives as stimulators of gastrointestinal motility. 1
作者:Setsuya Sasho、Hiroyuki Obase、Shunji Ichikawa、Takio Kitazawa、Hiromi Nonaka、Rika Yoshizaki、Akio Ishii、Katsuichi Shuto
DOI:10.1021/jm00057a007
日期:1993.3
Ranitidine (1), the histamine H2-receptor antagonist, has been previously reported to increase gastric emptying and gastric motility by inhibition of acetylcholinesterase (AChE) and enhancement of acetylcholine (ACh) release. In order to obtain potent gastroprokinetic agents, a new series of ranitidine derivatives (5-32) possessing a nitrogen atom instead of a sulfur atom (B) was synthesized and their
雷尼替丁(1),一种组胺H2受体拮抗剂,先前已报道通过抑制乙酰胆碱酯酶(AChE)和增强乙酰胆碱(ACh)释放来增加胃排空和胃动力。为了获得有效的胃肠动力药物,合成了一系列新的雷尼替丁衍生物(5-32),其中的雷尼替丁衍生物具有一个氮原子而不是一个硫原子(B),并且它们的AChE抑制活性和对豚鼠回肠电诱发收缩的增强作用已得到证实。评估。取代基R1和R2的改性显着影响了活性。特别是,化合物19((1- [2-[[[5-(哌啶子基甲基-2--2-呋喃基]甲基]氨基]-乙基] -2-咪唑啉亚基)丙酸酯富马酸酯显示出更强的AChE抑制活性20到100倍对回肠收缩有增强作用 分别比雷尼替丁。此外,化合物19(KW-5092)增强了麻醉兔子的肠胃蠕动,并具有可忽略的组胺H2受体阻断活性。