摘要 |
The present invention relates to the crystalline, polymorphic Form C of the calcimimetic compound {4-[(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}-acetic acid, to methods of preparation thereof, to methods of characterization thereof by single crystal X-Ray crystallography (XRC), X-Ray Powder diffractometry, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, Solid State NMR spectroscopy and Differential Scanning Calorimetry (DSC), and to its use. The invention also relates to the preparation of Form C by crystallization from a saturated solution of {4- [(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}-acetic acid in the presence of crystallization seeds of Form C, or alternatively by conversion of an amorphous starting material into the different crystalline polymorphic Form X by crystallization of {4-[(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}- acetic acid, followed by a solid solution transformation thereof into the desired polymorphic Form C. |
申请人 |
LEO PHARMA A/S;EBDRUP, SOEREN;NIELSEN, KIM TROENSEGAARD;GREVE, TANJA MARIA |
发明人 |
EBDRUP, SOEREN;NIELSEN, KIM TROENSEGAARD;GREVE, TANJA MARIA |