Synthesis of 2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazoles via the cyclopropyliminium rearrangement of substituted 2-cyclopropylbenzimidazoles
摘要:
2-Cyclopropylbenzimidazole derivatives with various substituents in the small ring undergo cyclopropyliminium rearrangement into 2,3-dihydropyrrolobenzimidazoles substituted at positions 1, 2 or 3. The substrates containing a functional group in position 1 of the cyclopropane ring form products substituted at position 3. Substituents at position 2 in most cases lead to the formation of a mixture of isomers. The reaction can be directed to yield one of the isomers predominantly by varying the solvent polarity. (C) 2013 Elsevier Ltd. All rights reserved.
通过在磷腈和腈官能团之间发生不寻常的氮杂-维蒂希反应并提供吡咯衍生的亚氨基磷腈,进行了α-EWG取代(吸电子基团,EWG)γ-叠氮基丁腈的转化。发现α-EWGs控制化学选择性,并取决于其性质,在氮杂-Wittig反应中充当CN基团活化剂(例如,酯,酰胺或腈)或竞争剂(例如,酮)。为了证明所得亚氨基磷腈作为N,N-双亲核试剂的合成效用,将其转化为吡咯稠合体系,即吡咯并[1,2- a ]咪唑和吡咯并[1,2- a ] [1,3]二氮杂s。执行。
[EN] PHENYL-HETEROARYL AMINE COMPOUNDS AND THEIR USES<br/>[FR] COMPOSÉS PHÉNYL-HÉTÉROARYL AMINE ET LEURS UTILISATIONS
申请人:NOVARTIS AG
公开号:WO2012066065A1
公开(公告)日:2012-05-24
The present invention provides a compound of formula (I): and pharmaceutically acceptable salts, enantiomers, stereoisomers, rotamers, tautomers, diastereomers, or racemates thereof. Also provided are methods of treating a disease or condition mediated by CDK9 using the compounds of Formula I, and pharmaceutical compositions comprising such compounds.
The present invention provides a compound of formula (I): and pharmaceutically acceptable salts, enantiomers, stereoisomers, rotamers, tautomers, diastereomers, or racemates thereof. Also provided are pharmaceutical compositions containing these compounds and methods of treating a disease or condition mediated by CDK9 using these compounds and compositions.
[EN] PYRIDINE BIARYL AMINE COMPOUNDS AND THEIR USES<br/>[FR] COMPOSÉS DE PYRIDINE BIARYLAMINE ET UTILISATION DE CEUX-CI
申请人:NOVARTIS AG
公开号:WO2012101066A1
公开(公告)日:2012-08-02
The present invention provides a compound of formula (I): and pharmaceutically acceptable salts, enantiomers, stereoisomers, rotamers, tautomers, diastereomers, or racemates thereof. These compounds inhibit the activity of CDK9 and are thus useful as pharmaceuticals. Also provided are methods of treating a disease or condition mediated by CDK9 using the compounds of Formula I and isomers thereof, and pharmaceutical compositions comprising such compounds.
NOVEL ANTIVIRAL PYRROLOPYRIDINE DERIVATIVES AND METHOD FOR PREPARING THE SAME
申请人:KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
公开号:US20140249162A1
公开(公告)日:2014-09-04
The present invention relates to a pyrrolopyridine derivative represented by the Chemical Formula I, and a racemate or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and relates to an antiviral composition including the same as an active ingredient. The compound of the Chemical Formula I has excellent antiviral activity and selectivity for wild type and resistant HIV-1, and thereby is useful as a therapeutic agent for acquired immune deficiency syndrome (AIDS).