[EN] DIAZONIUM-FREE METHOD TO MAKE AN INDAZOLE INTERMEDIATE IN THE SYNTHESIS OF BICYCLIC 5-(TRIFLUORMETHOXY)-1H-3-INDAZOLECARBOXYLIC ACID AMIDES [FR] PROCÉDÉ SANS DIAZONIUM POUR FABRIQUER UN INTERMÉDIAIRE INDAZOLE DANS LA SYNTHÈSE D'AMIDES BICYCLIQUES DE L'ACIDE 5-(TRIFLUOROMÉTHOXY)-1H-3-INDAZOLECARBOXYLIQUE
[EN] DIAZONIUM-FREE METHOD TO MAKE AN INDAZOLE INTERMEDIATE IN THE SYNTHESIS OF BICYCLIC 5-(TRIFLUORMETHOXY)-1H-3-INDAZOLECARBOXYLIC ACID AMIDES [FR] PROCÉDÉ SANS DIAZONIUM POUR FABRIQUER UN INTERMÉDIAIRE INDAZOLE DANS LA SYNTHÈSE D'AMIDES BICYCLIQUES DE L'ACIDE 5-(TRIFLUOROMÉTHOXY)-1H-3-INDAZOLECARBOXYLIQUE
DIAZONIUM-FREE METHOD TO MAKE AN INDAZOLE INTERMEDIATE IN THE SYNTHESIS OF BICYCLIC 5-(TRIFLUORMETHOXY)-1H-3-INDAZOLECARBOXYLIC ACID AMIDES
申请人:Cleary Thomas
公开号:US20100094011A1
公开(公告)日:2010-04-15
The present invention provides novel methods for preparing 5-(trifluoromethoxy)-1H-3-indazolecarboxylic acid (3), which is a useful precursor for the preparation of bicyclic-5-trifluoromethoxy-1H-indazole-3-carboxylic acid amides of Formula (1). Compounds of Formula (1) are active as agonists and partial agonists of the nicotinic α-7 receptor and are being studied for their use in the treatment of disease conditions associated with defective or malfunctioning nicotinic acetylcholine receptors, especially of the brain, such as for the treatment of Alzheimer's disease and schizophrenia, as well as other psychiatric and neurological disorders. The present methods are useful for preparing compound (3) on scale up levels.
US8232412B2
申请人:——
公开号:US8232412B2
公开(公告)日:2012-07-31
US8354536B2
申请人:——
公开号:US8354536B2
公开(公告)日:2013-01-15
[EN] DIAZONIUM-FREE METHOD TO MAKE AN INDAZOLE INTERMEDIATE IN THE SYNTHESIS OF BICYCLIC 5-(TRIFLUORMETHOXY)-1H-3-INDAZOLECARBOXYLIC ACID AMIDES<br/>[FR] PROCÉDÉ SANS DIAZONIUM POUR FABRIQUER UN INTERMÉDIAIRE INDAZOLE DANS LA SYNTHÈSE D'AMIDES BICYCLIQUES DE L'ACIDE 5-(TRIFLUOROMÉTHOXY)-1H-3-INDAZOLECARBOXYLIQUE
申请人:HOFFMANN LA ROCHE
公开号:WO2010043515A1
公开(公告)日:2010-04-22
The present invention provides novel methods for preparing 5-(trifluoromethoxy)-lH-3- indazolecarboxylic acid (3), which is a useful precursor for the preparation of bicyclic-5- trifluoromethoxy-lH-indazole-S-carboxylic acid amides of Formula (1). Compounds of Formula (1) are active as agonists and partial agonists of the nicotinic α-7 receptor and are being studied for their use in the treatment of disease conditions associated with defective or malfunctioning nicotinic acetylcholine receptors, especially of the brain, such as for the treatment of Alzheimer's disease and schizophrenia, as well as other psychiatric and neurological disorders. The present methods are useful for preparing compound (3) on scale up levels.