The present invention provides a novel intermediate as well as novel polymorphs of 1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phenyl]-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide compound represented by the following structural formula-1 and processes for their preparation.
本发明提供了一种新的中间体以及新的多形态结构的1-(4-
甲氧基苯基)-7-氧代-6-[4-(2-氧代
哌啶-1-基)苯基]-4,5,6,7-四氢-
1H-吡唑并[3,4-c]吡啶-3-羧酰胺化合物,其
化学结构如下所示,并提供了其制备方法。