[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.
本发明提供了制备5-(三氟甲氧基)-1H-3-吲哚羧酸(3)的新方法,该化合物是制备式(1)的双环五氟甲氧基-1H-吲哚-5-羧酸酰胺的有用前体。式(1)的化合物作为尼古丁α-7受体的激动剂和部分激动剂具有活性,并正在研究其在治疗与有缺陷或功能失常的尼古丁乙酰胆碱受体相关的疾病条件中的用途,特别是用于治疗阿尔茨海默病和精神分裂症,以及其他精神和神经疾病。本发明的方法对于在大规模生产中制备化合物(3)非常有用。