Heterocyclic compounds useful as 5-HT.sub.3 antagonists
申请人:John Wyeth & Brother Limited
公开号:US04983600A1
公开(公告)日:1991-01-08
Aroyl ureas and carbamic acid derivatives of formula A--CO--NHCW--Y--B and pharmaceutically acceptable salts thereof wherein A is a specified aromatic radical including optionally substituted phenyl W is O or S Y is NH or S and B is a specified saturated azacyclic ring, eg tropan-3-yl or quinuclidin-3-yl, possess 5-HT.sub.3 -antagonistic activity and are, for example, useful in treatment of migraine, emesis, anxiety, gastro-intestinal disorders and as anti-psychotics.
Novel antagonists of the 5-HT3 receptor. Synthesis and structure-activity relationships of (2-alkoxybenzoyl)ureas
作者:Gerald Bradley、Terence J. Ward、Janet C. White、James Coleman、Ann Taylor、Keith F. Rhodes
DOI:10.1021/jm00087a003
日期:1992.5
A series of benzoylureas derived from bicycle amines were prepared and evaluated for 5-HT3 antagonist activity on the rat isolated vagus nerve. From among these compounds, those analogues which were ortho substituted by an alkoxy group on the benzoyl function were shown to be potent 5-HT3 antagonists with similar or greater potency than the standard agent ondansetron. NMR and X-ray crystallography studies showed these o-alkoxy compounds to exist as a planar, hydrogen-bonded, tricyclic ring system. In molecular modeling studies on endo-N-[[(8-methyl-8-azabicyclo [3.2.1]octan-3-yl)amino]carbonyl]-2-(cyclopropylmethoxy)benzamide (30) the central hydrogen-bonded ring was able to mimic an aromatic ring present in previously reported 5-HT3 antagonists.