Novel antagonists of the 5-HT3 receptor. Synthesis and structure-activity relationships of (2-alkoxybenzoyl)ureas
摘要:
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.
Synthesis of N-Sulfonyl Amidines and Acyl Sulfonyl Ureas from Sulfonyl Azides, Carbon Monoxide, and Amides
作者:Shiao Y. Chow、Luke R. Odell
DOI:10.1021/acs.joc.6b02894
日期:2017.3.3
A Pd-catalyzed and ligand-free carbonylation/cycloaddition/decarboxylation cascade synthesis of sulfonyl amidines from sulfonyl azides and substituted amides at low CO pressure is reported. The reaction proceeds via an initial Pd-catalyzed carbonylative generation of sulfonyl isocyanates from sulfonyl azides, followed by a [2 + 2] cycloaddition with amides and subsequent decarboxylation, which liberates
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.
INDOLIN-2-ONE DERIVATIVES AS PROTEIN KINASE INHIBITORS
申请人:ANNJI PHARMACEUTICAL CO., LTD.
公开号:US20130281451A1
公开(公告)日:2013-10-24
A novel class of indoline-2-one derivatives are disclosed. These compounds are protein kinase inhibitors which are useful for treating hyperproliferative diseases such as cancer.
Synthesis of Imides and Benzoylureas by Direct Oxidation of <i>N</i>-methylenes of Amides and Benzylureas
作者:Wenhua Huang、Mei-Li Xu
DOI:10.3184/174751912x13567968693695
日期:2013.2
Some amides and benzylureas can be oxidised to imides and benzoylureas, respectively, using silver(I) nitrate (20 mol %), copper(II) sulfate pentahydrate (20 mol %), ammonium persulfate (3.0 equiv.), and potassium fluoride (20 equiv.) in water at room temperature.