[EN] SOLID FORMS OF (2R,4S)-5-(BIPHENYL-4-YL)-4-[(3-CARBOXYPROPIONYL)AMINO]-2- -METHYLPENTANOIC ACID ETHYL ESTER, ITS SALTS AND A PREPARATION METHOD<br/>[FR] FORMES SOLIDES D'ESTER ÉTHYLIQUE D'ACIDE (2R,4S)-5-(BIPHÉNYL-4-YL)-4-[(3-CARBOXYPROPIONYL)AMINO]-2-MÉTHYLPENTANOÏQUE, SES SELS ET SON PROCÉDÉ DE PRÉPARATION
申请人:ZENTIVA KS
公开号:WO2017097275A1
公开(公告)日:2017-06-15
The invention relates to solid forms of the free acid of sacubitril of formula 1, especially a crystalline form, incl. a method of removing chemical impurities from the crude free acid of sacubitril that is characterized in the use of well crystallizing salts of sacubitril with the amines of formula 9, where R1, R2, R3 independently stand for hydrogen or a C1-C7 alkyl, preferably the salt with cyclohexylamine, tert-butylamine or iso-propylamine. The invention further relates to a novel solid, crystalline form of sacubitril (8) - hemisolvate of the potassium salt of sacubitril, incl. a direct and highly efficient and industrially usable preparation methods of a solid form of sacubitril free acid and its pharmaceutically applicable salts, especially the crystalline sodium salt of formula 5, calcium salt of sacubitril of formula 6 and hemisolvate of the potassium salt of sacubitril of formula 8.
该发明涉及公式1的沙库比替尔游离酸的固体形式,特别是结晶形式,包括一种从粗沙库比替尔游离酸中去除化学杂质的方法,其特征在于使用沙库比替尔与公式9的胺的良好结晶盐,其中R1、R2、R3独立代表氢或C1-C7烷基,优选与环己胺、叔丁胺或异丙胺的盐。该发明还涉及沙库比替尔的新型固体结晶形式(8)-沙库比替尔钾盐的半溶剂包含物,包括沙库比替尔游离酸及其药用适用盐的固体形式的直接、高效和工业可用制备方法,特别是公式5的结晶钠盐、公式6的钙盐和公式8的沙库比替尔钾盐的半溶剂。