Process for Preparation Of Solifenacin and/or the Pharmaceutically Acceptable Salts Thereof of High Pharmaceutical Purity
申请人:Zegrocka-Stendel Oliwia
公开号:US20110065922A1
公开(公告)日:2011-03-17
A process for the preparation of solifenacin and/or the pharmaceutically acceptable salts thereof of high pharmaceutical purity is characterized in that 3-(R)-quinuclidinoloxy anion generated in situ from 3-(R)-quinuclidinol in a presence of strong base in polar organic solvent is subject to acylation with (S)-1-phenyl-1,2,3,4-tetrahydroisoquinolinecarbonyl chloride of chemical purity at least 98%, while maintaining constant anion excess in a reaction mixture, and after reaction completion solifenacin base is optionally transformed into solifenacin salt according to standard procedures. (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinolinecarbonyl chloride of chemical purity at least 98% is obtained in a reaction of (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline and molar excess of phosgene in a presence of tertiary aromatic amine in aromatic hydrocarbon, and isolated in a crystalline form.
一种制备高纯度药用溶脲坦及/或其药学上可接受的盐的方法,其特征在于:在极性有机溶剂中,在强碱存在下,从3-(R)-喹诺啉醇中原位产生3-(R)-喹诺啉氧阴离子,将其保持在反应混合物中的过剩状态,然后使用至少98%的化学纯度的(S)-1-苯基-1,2,3,4-四氢异喹啉甲酰氯进行酰化反应,反应完成后,可根据标准程序将溶脲坦碱转化为溶脲坦盐。在芳香族烃中,使用(S)-1-苯基-1,2,3,4-四氢异喹啉和过量的光气在三级芳香族胺存在下反应,得到至少98%的化学纯度的(S)-1-苯基-1,2,3,4-四氢异喹啉甲酰氯,并以结晶形式分离。