申请人:Ebdrup Søren
公开号:US20130143846A1
公开(公告)日:2013-06-06
The present invention relates to the crystalline, polymorphic Form X 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 X by crystallization from a saturated solution of 4-[(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}-acetic acid in a C
1
-C
6
alkyl alcohol, or alternatively by precipitation from a neutralized saponification reaction mixture following the alkaline hydrolysis of a C
1
-C
6
alkyl ester of 4-[(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}-acetic acid.
本发明涉及钙敏感剂化合物4-[(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}-乙酸的结晶多形形式X,其制备方法,通过单晶X射线衍射(XRC)、X射线粉末衍射、衰减全反射傅里叶变换红外(ATR-FTIR)光谱、固态核磁共振(NMR)光谱和差示扫描量热(DSC)的表征方法,以及其使用。本发明还涉及通过在C1-C6烷基醇中饱和溶液中结晶4-[(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}-乙酸或通过在碱性水解C1-C6烷基4-[(1R,3S)-3-((R)-1-Naphthalen-1-yl-ethylamino)-cyclopentyl]-phenoxy}-乙酸酯的中和皂化反应混合物中沉淀形成X形式的制备方法。