| abstract |
An alpha crystal form of perindopril tert-butylamine salt, a process for producing the same, and a pharmaceutical composition containing the same are provided. An α crystal form of a compound of formula (I) characterized by its powder X-ray diffraction pattern. A useful form of filtration, drying and ease of formulation has been found, and a method of producing a crystal form that is sufficient, clear and completely reproducible has been found. This method is useful for the manufacture of a medicament. [Selection figure] None |