The present application relates to novel substituted 5-aminopyrazoles, methods of production thereof, use thereof alone or in combinations for the treatment and/or prophylaxis of diseases and use thereof for the production of medicinal products for the treatment and/or prophylaxis of diseases.
[EN] SUBSTITUTED 5-AMINOPYRAZOLES AND USE THEREOF<br/>[FR] 5-AMINOPYRAZOLES SUBSTITUÉS ET LEUR UTILISATION
申请人:BAYER SCHERING PHARMA AG
公开号:WO2010020363A1
公开(公告)日:2010-02-25
The present application relates to novel substituted 5-aminopyrazoles, methods of production thereof, use thereof alone or in combinations for the treatment and/or prophylaxis of diseases and use thereof for the production of medicinal products for the treatment and/or prophylaxis of diseases.
cascade 6-endo-dig cyclizationreaction was developed for the switchable synthesis of halogen and non-halogen-functionalized pyrazolo[3,4-b]pyridines from 5-aminopyrazoles and alkynyl aldehydes via C≡C bond activation with silver, iodine, or NBS. In addition to its wide substrate scope, the reaction showed good functional group tolerance as well as excellent regional selectivity. This new protocol