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    • 86. 发明授权
    • Process for converting stereoisomers of sertraline into sertraline
    • 将舍曲林的立体异构体转化为舍曲林的方法
    • US06506940B1
    • 2003-01-14
    • US09709812
    • 2000-11-10
    • Kanaksinh J. JadavTrinadha Rao ChitturiRajamannar Thennati
    • Kanaksinh J. JadavTrinadha Rao ChitturiRajamannar Thennati
    • C07C21100
    • C07C209/68C07C2602/10Y02P20/582C07C211/29C07C211/42
    • A process for converting the cis (1R, 4R), trans (1S, 4R), and trans (1R, 4S) stereoisomers of sertraline into sertraline comprises, starting with an initial reaction mixture which contains at least one of these stereoisomers, converting the sertraline stereoisomers into an imine form of sertraline. The imine form of sertraline is then reduced so that sertraline and at least one sertraline stereoisomer byproduct is produced in the reaction mixture. The sertraline is then recovered from the reaction mixture, e.g., by fractional crystallization (followed by resolution of sertraline from the cis (1R, 4R) stereoisomer, if necessary). The reaction mixture is then recycled through the same steps so that sertraline is produced from its stereoisomers in an asymptotic yield.
    • 将舍曲林的顺式(1R,4R),反式(1S,4R)和反式(1R,4S)立体异构体转化为舍曲林的方法包括,从含有至少一种这些立体异构体的初始反应混合物开始, 舍曲林立体异构体转化为亚胺形式的舍曲林。 然后减少舍曲林的亚胺形式,使得在反应混合物中产生舍曲林和至少一种舍曲林立体异构体副产物。 然后从反应混合物中回收舍曲林,例如通过分步结晶(如果需要的话从顺式(1R,4R)立体异构体中分离出舍曲林)。 然后将反应混合物通过相同的步骤循环使得舍曲林以其渐进收率从其立体异构体产生。