The present invention relates to improved process for the preparation of (2S)-N-(1S)-1-(2-chlorophenyl)-2-[(3,3-difluorocyclobutyl)-amino]-2-oxoethyl}-1-(4-cyanopyridin-2-yl)-N-(5-fluoropyridin-3-yl)-5-oxopyrrolidine-2-carboxamide and its pharmaceutically acceptable salts represented by the following structural formula. Formula-1 The present invention relates to novel intermediates useful in the preparation of Ivosidenib of formula-1 and novel process for the preparation of (2S)-N-(1S)-1-(2-chlorophenyl)-2-[(3,3-difluorocyclobutyl)-amino]-2oxoethyl}-1-(4-cyanopyridin-2-yl)-N-(5-fluoropyridin-3-yl)-5-oxopyrrolidine-2-carboxamide. The present invention also relates to solid state forms of (2S)-N-(1S)-1-(2-chlorophenyl)-2-[(3,3-difluorocyclobutyl)-amino]-2 oxoethyl}-1-(4-cyanopyridin-2-yl)-N-(5-fluoropyridin-3-yl)-5-oxopyrrolidine-2-carboxamide.
本发明涉及改进的制备过程,用于制备(2S)-N-(1S)-1-(2-
氯苯基)-2-[(3,3-二
氟环丁基)-
氨基]-2-氧乙基}-1-(4-
氰吡啶-2-基)-N-(5-
氟吡啶-3-基)-5-氧
吡咯啉-2-羧酰胺及其在以下结构式中表示的药用盐。 结构式-1 本发明涉及在制备结构式-1的Ivosidenib中有用的新中间体以及用于制备(2S)-N-(1S)-1-(2-
氯苯基)-2-[(3,3-二
氟环丁基)-
氨基]-2-氧乙基}-1-(4-
氰吡啶-2-基)-N-(5-
氟吡啶-3-基)-5-氧
吡咯啉-2-羧酰胺的新方法。 本发明还涉及(2S)-N-(1S)-1-(2-
氯苯基)-2-[(3,3-二
氟环丁基)-
氨基]-2-氧乙基}-1-(4-
氰吡啶-2-基)-N-(5-
氟吡啶-3-基)-5-氧
吡咯啉-2-羧酰胺的固态形式。