PROCESS OF ISOLATING ENANTIOMER COMPONENTS FROM ENANTIOMER MIXTURES BY PARTICLE-SIZE-CONTROLLED CRYSTALLIZATION
    1.
    发明公开
    PROCESS OF ISOLATING ENANTIOMER COMPONENTS FROM ENANTIOMER MIXTURES BY PARTICLE-SIZE-CONTROLLED CRYSTALLIZATION 有权
    通过颗粒控制结晶从对映体混合物中分离对映体组分的过程

    公开(公告)号:EP2344435A2

    公开(公告)日:2011-07-20

    申请号:EP09781210.1

    申请日:2009-07-28

    申请人: Poxel

    摘要: The present invention discloses a process for isolating enantiomer components from a mixture of enantiomers through particle-size-controlled crystallization, comprising the steps of: (a) forming a solution of a mixture of enantiomers (R) and (S) in a solvent in the absence of any further additives or agents; (b) seeding the solution of step (a) simultaneously or consecutively with seed crystals of enantiomer (R) and with seed crystals of enantiomer (S), wherein the seed crystals of enantiomer (R) differ in size and/or in quantity from the seed crystals of enantiomer (S) to allow separation of the crystals composed of a mixture enriched with enantiomer (R) from the crystals composed of a mixture enriched with enantiomer (S); (c) inducing simultaneous crystallization of enantiomer (R) and enantiomer (S); and (d) isolating crystals composed of a mixture enriched with enantiomer (R) from crystals composed of a mixture enriched with enantiomer (S) through size separation of the crystals, preferably through sieving, melting or sedimentation, in particular through sieving.

    摘要翻译: 本发明公开了一种通过粒径控制结晶从对映体混合物中分离对映体组分的方法,包括以下步骤:(a)在溶剂中形成对映体混合物(R)和(S)的溶液 没有任何其他添加剂或试剂; (b)将步骤(a)的溶液同时或连续地与对映异构体(R)的晶种和对映异构体(S)的晶种接种,其中对映异构体(R)的晶种的大小和/ 对映异构体(S)的晶种允许将由富含对映异构体(R)的混合物组成的晶体与由富含对映异构体(S)的混合物组成的晶体分离; (c)诱导对映异构体(R)和对映异构体(S)的同时结晶; 和(d)通过尺寸分离晶体,优选通过筛分,熔融或沉降,特别是通过筛分,从由富含对映体(S)的混合物组成的晶体中分离出富含对映体(R)的混合物。