[EN] COMPOSITIONS AND METHODS OF SYNTHESIS OF PYRIDINOYLPIPERIDINE 5-HT1F AGONISTS<br/>[FR] COMPOSITIONS ET MÉTHODES DE SYNTHÈSE D'AGONISTES DES RÉCEPTEURS 5-HT1F DÉRIVÉS DE LA PYRIDINOYLPIPÉRIDINE
申请人:COLUCID PHARMACEUTICALS INC
公开号:WO2011123654A1
公开(公告)日:2011-10-06
The present invention provides a novel polymorph of the hemisuccinate salt of 2,4,6-trifluoro-N-[6-(1-methyl-piperidine-4-carbonyl)-pyridin-2-yl]-benzamide (Form A) characterized by a unique X-ray diffraction pattern and Differential Scanning Calorimetry profile, as well as a unique crystalline structure. This polymorph is useful in pharmaceutical compositions, for example, for the treatment and prevention of migraine. The invention also provides a process for the synthesis of pyridinoylpiperidine compounds of Formula I in high yield and high purity. In particular, the provides a process for the preparation of 2,4,6-trifluoro-N-[6-(1-methyl-piperidine-4-carbonyl)-pyridin-2-yl]-benzamde, its hemisuccinate salt and polymorph (Form A).
本发明提供了2,4,6-三氟-N-[6-(1-甲基哌啶-4-羰基)-吡啶-2-基]-苯甲酰半琥酸盐的新型多晶形态(A型),其具有独特的X射线衍射图样和差示扫描量热分析曲线,以及独特的晶体结构。该多晶形态在药物组合物中具有用途,例如用于治疗和预防偏头痛。该发明还提供了一种高产率和高纯度合成Formula I中吡啶酰哌啶化合物的方法。具体来说,提供了一种制备2,4,6-三氟-N-[6-(1-甲基哌啶-4-羰基)-吡啶-2-基]-苯甲酰半琥酸盐和多晶形态(A型)的方法。