21-02-2019 дата публикации
Номер: US20190055233A1
Принадлежит:
The invention relates to acid addition salts of piperazine derivatives, as well as solid forms, such as polymorphic forms, thereof, which are useful as pharmaceutical ingredients and, in particular, as glycosidase inhibitors. 114.-. (canceled)19. The acid addition salt according to any one of - in a molar ratio of the compound of formula I to acid of 1 to 1.20. The acid addition salt according to claim 19 , selected from:N-(5-{4-[(1S)-1-(2,3-dihydro-1-benzofuran-6-yl)ethyl]piperazin-1-yl}-1,3,4-thiadiazol-2-yl)acetamide, mono-hydrochloride;N-(5-{4-[(1S)-1-(2H-1,3-benzodioxol-5-yl)ethyl]piperazin-1-yl}-1,3,4-thiadiazol-2-yl)acetamide, mono-hydrochloride;2-{4-[(1S)-1-(2H-1,3-benzodioxol-5-yl)ethyl]piperazin-1-yl}-N-methyl-1,3-thiazole-5-carboxamide, mono-hydrochloride;2-{4-[(1S)-1-(2H-1,3-benzodioxol-5-yl)ethyl]piperazin-1-yl}-N-methylpyrimidine-5-carboxamide, mono-hydrochloride;N-(2-{4-[(1S)-1-(2H-1,3-benzodioxol-5-yl)ethyl]piperazin-1-yl}pyrimidin-5-yl)acetamide, mono-hydrochloride; and2-{4-[(1 S)-1-(2,3-dihydro-1-benzofuran-6-yl)ethyl]piperazin-1-yl}-4H,5H,6H,7H-[1,3]thiazolo[5,4-c]pyridin-4-one, mono-hydrochloride.21. N-(5-{4-[(1S)-1-(2H-1 claim 19 ,3-benzodioxol-5-yl)ethyl]piperazin-1-yl}-1 claim 19 ,3 claim 19 ,4-thiadiazol-2-yl)acetamide claim 19 , mono-hydrochloride in a solid form having the characteristic X-ray powder diffraction pattern as shown on .22. A method for the preparation of an acid addition salt of hydrochloric acid claim 15 , maleic acid claim 15 , tartaric acid sulfuric acid or p-toluolsulfonic acid with a compound of formula I according to claim 15 , comprising the following steps:a) suspending or dissolving the selected compound of formula I and the selected acid in a suitable solvent or solvent mixture;b) heating the mixture obtained in step a) to a temperature of between 30° C. to the boiling point of the selected solvent or solvent mixture, and allowing the mixture to cool to room temperature;c) optionally repeating step b) several times; ...
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