1-(4-methoxyphenyl)-7-oxo-6-[1-(2-sulfamoylphenyl)piperidin-4-yl]-4,5-dihydropyrazolo[5,4-c]pyridine-3-carboxamide 1-(4-methoxyphenyl)-7-oxo-6-[1-(2-sulfamoylphenyl)-4-piperidyl]-4,5-dihydropyrazolo[5,4-c]pyridine-3-carboxamide 1-(4-methoxyphenyl)-7-oxo-6-[1-(2-sulfamoylphenyl)-4-piperidinyl]-4,5-dihydropyrazolo[5,4-c]pyridine-3-carboxamide 7-keto-1-(4-methoxyphenyl)-6-[1-(2-sulfamoylphenyl)-4-piperidyl]-4,5-dihydropyrazolo[5,4-c]pyridine-3-carboxamide