C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 471/04 (2006.01)
Patent
CA 2624340
A method for preparing a polymorph of a hemitartrate salt of a compound having the structure: comprising dissolving a free base form of the compound in a liquid medium comprising an alcohol and a tartrate derivative to form a solution comprising the compound, the alcohol, and the tartrate derivative; heating the solution to a temperature sufficient to dissolve the compound and the tartrate derivative; and cooling the solution to a temperature sufficient to precipitate the hemitartrate salt of the compound.
La présente invention se rapporte à un procédé de préparation d~un polymorphe d~un sel hémitartrate d~un composé ayant la structure : comprenant la dissolution d~une forme de base libre du composé dans un milieu liquide comprenant un alcool et un dérivé de tartrate pour former une solution comprenant le composé, l~alcool et le dérivé de tartrate ; en chauffant la solution jusqu~à une température suffisante pour dissoudre le composé et le dérivé de tartrate ; et en refroidissant la solution jusqu~à une température suffisante pour faire précipiter le sel d~hémitartrate du composé.
Mallinckrodt Inc.
Osler Hoskin & Harcourt Llp
LandOfFree
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