| abstract |
The invention relates to 3,6-diaryl-1H-pyrazolo [3,4-b] pyridine-4-carboxylic acid derivatives of the general formula EMBED ISISServer, and where Ar1 = C6H5; 4-Cl-C6H4; 4-CH3-C6H4; 4-CH3O-C6H4; Ar2 = C6H5; 4-F-C6H4; 4-Cl-C6H4; 4-CH3-C6H4; 4-CH3O-C6H4; 3,4-di-CH3O-C6H3, as well as a method for their preparation by condensation of substituted 5-aminopyrazoles with substituted aromatic aldehydes and pyruvic acid by boiling in glacial acetic acid. |