Pyranoindazoles and their use for the treatment of glaucoma
申请人:——
公开号:US20030171418A1
公开(公告)日:2003-09-11
Pyranoindazoles are disclosed. Also disclosed are methods for the lowering and controlling of normal or elevated intraocular pressure as well as a method for the treatment of glaucoma using compositions containing one or more of the compounds of the present invention.
[EN] METHODS OF MAKING INDAZOLES<br/>[FR] PROCEDES DE FABRICATION D'INDAZOLES
申请人:ALCON INC
公开号:WO2002098862A1
公开(公告)日:2002-12-12
Methods of making indazoles are described. The methods involved reacting an aromatic aldehyde with a nitrogen source to form a nitroso aromatic aldehyde. The nitroso aromatic aldehyde is reacted with a reducing agent to form an indazole which ultimately can be used to form desired indazoles which are preferably pharmaceutically active products. The process of the present invention further permits the formation of enantiomerically enriched or pure indazoles such as aminoalkyl indazoles.
[EN] METHODS OF MAKING 1-(2-AMINOPROPYL)-6-HYDROXYINDAZOLE<br/>[FR] PROCEDES DE FABRICATION DE 1-(2-AMINOPROPYL)-6-HYDROXYINDAZOLE
申请人:ALCON INC
公开号:WO2002098861A1
公开(公告)日:2002-12-12
Methods of making 1-(2-aminopropyl)-6-hydroxyindazole are described. The method involves, in part, reacting 4-benzyloxy-2-(2-hydroxypropyl)aminobenzaldehyde with an organic or inorganic nitrite to form 4-benzyloxy-2-(2-hydroxypropyl)nitosaminobenzaldehyde, wich in turn is reacted with a reducing agent with concomitant cyclization to form 6-benzyloxy-1-(2-hydroxypropyl)indazole. The 6-benzyloxy-1-(2-hydroxypropyl)indazole can then be transformed into 1-(2-azidopropyl)-6-benzyloxyindazole which in turn can be converted to the final product.