[EN] PREPARATION AND ENANTIOMERIC SEPARATION OF 7-(3-PYRIDINYL)-1,7-DIAZASPIRO[4.4] NONANE AND NOVEL SALT FORMS OF THE RACEMATE AND ENANTIOMERS<br/>[FR] PRÉPARATION ET SÉPARATION ÉNANTIOMÉRIQUE DE NONANE DE 7-(3-PYRIDINYL)-1,7-DIAZASPIRO[4.4] ET NOUVELLES FORMES DE SEL DU RACÉMATE ET D'ÉNANTIOMÈRES
申请人:TARGACEPT INC
公开号:WO2009091561A1
公开(公告)日:2009-07-23
A novel scalable synthesis for the preparation of 7-(3- pyridinyI)- 1,7- diazaspiro[4.4)nonane has been developed, and7-(3-pyridinyl)-1,7-diazaspiro[4.4]nonane salts have been formed with succinic acid and oxalic acid. Additionally, 7-(3-pyridinyl)-1,7- diazaspiro[4.4]nonane has been separated into its stereoisomers via resolution with L and D di-p-toluoyltartaric acids, giving (R)- and (S)-7-(3-pyridinyl)-1,7-diazaspiro[4.4]nonane of high enantiomeric purity. Numerous solid salts of the resulting (R)- and (S)-7-(3-pyridinyl)-1,7- diazaspiro[4.4}nonane have been prepared. Methods for the preparation of the racemic and enantiomeric salts, pharmaceutical compositions comprising such salts, and uses thereof are disclosed. The salts can be administered to patients susceptible to or suffering from conditions and disorders, such as central nervous system disorders, to treat and/or prevent such disorders.
已开发一种新型可扩展的合成方法,用于制备7-(3-吡啶基)-1,7-二氮杂螺[4.4]壬烷,并用琥珀酸和草酸形成了7-(3-吡啶基)-1,7-二氮杂螺[4.4]壬烷盐。此外,通过与L和D二对甲苯甲酰酒石酸进行分离,将7-(3-吡啶基)-1,7-二氮杂螺[4.4]壬烷分离为其立体异构体,得到高对映纯度的(R)-和(S)-7-(3-吡啶基)-1,7-二氮杂螺[4.4]壬烷。已制备了大量由(R)-和(S)-7-(3-吡啶基)-1,7-二氮杂螺[4.4]壬烷产生的固体盐。公开了制备外消旋和对映体盐的方法,包括含有这些盐的药物组合物以及其用途。这些盐可用于治疗和/或预防中枢神经系统疾病等疾病和疾病,可向易感患者或患有这些疾病和紊乱的患者施用。