Soren Ebdrup;Tanja Maria Greve;Kim Troensegaard Nielsen
发明人:
Soren Ebdrup,Kim Troensegaard Nielsen,Tanja Maria Greve
申请号：
US13806690
公开号：
US09056814B2
申请日:
2011.06.24
申请国别(地区):
US
年份:
2015
代理人:
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.
