2-甲基-3-羟基-4-甲氧基甲基-5-羟甲基吡啶盐酸盐(吡哆醇酯,I)是用于维生素 B6 商业生产的合成方案之一中的最终半产品。已知 [1 3] 可以通过亚硝酸钠在盐酸水溶液中对 2-甲基-3氨基-4-甲氧基甲基-5-氨基甲基吡啶 (II) 进行二氮化,然后用羟基取代重氮基来获得化合物 i . 结果,氯化钠在反应混合物中以与最初加载的亚硝酸钠等摩尔的量形成。为了随后在合成维生素 B 6 中使用化合物 I,必须从产物混合物中分离氯化钠。这通常通过将反应物料蒸发至干,然后用无水酒精萃取 I,结晶,过滤和干燥,或通过用有机溶剂萃取蒸发的 I 水溶液,然后用盐酸水溶液从有机溶剂中再萃取 I。这两个过程都是耗时耗力的。我们工作的目的是研究在不包括在含有化合物 I 的反应混合物中形成氯化钠的条件下进行二氮化过程的可能性。为此,我们研究了二氮化试剂在有机溶剂。在疏水性有机溶剂中进行二氮化的过程是使用亚
The present invention provides salt adducts comprising at least one positively charged moiety being a pyridoxine or a derivative thereof and at least one carboxylated 5- to 7-membered lactam ring, optionally additionally substituted, methods of their preparation, and pharmaceutical compositions and medicaments comprising them. Salt adducts of the invention and compositions comprising them may be used to in the treatment of diseases or disorders associated with or inflicted by alcohol consumption.
[EN] SUBSTITUTED PYRIDOXINE-LACTAM CARBOXYLATE SALTS<br/>[FR] SELS DE CARBOXYLATE DE PYRIDOXINE-LACTAME SUBSTITUÉS
申请人:ALCOBRA LTD
公开号:WO2010013242A1
公开(公告)日:2010-02-04
The present invention provides salt adducts comprising at least one positively charged moiety being a pyridoxine or a derivative thereof and at least one carboxylated 5- to 7-membered lactam ring, optionally additionally substituted, methods of their preparation, and pharmaceutical compositions and medicaments comprising them. Salt adducts of the invention and compositions comprising them may be used to in the treatment of diseases or disorders associated with or inflicted by alcohol consumption.
The present invention provides salt adducts comprising at least one positively charged moiety being a pyridoxine or a derivative thereof and at least one carboxylated 5- to 7-membered lactam ring, optionally additionally substituted, methods of their preparation, and pharmaceutical compositions and medicaments comprising them. Salt adducts of the invention and compositions comprising them may be used to in the treatment of diseases or disorders associated with or inflicted by alcohol consumption,