The present invention relates to a novel process for the manufacture of 1-(4- methoxyphenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phenyl]-4,5,6,7-tetrahydro-1 H- pyrazolo[3,4-c]pyridine-3-carboxamide and pharmaceutically acceptable salts thereof with high yield and purity suitable for industrial scale applications and reducing the steps of the global process.
