The invention relates to a process for the kinetic resolution of D,L-racemic mixtures of racemates crystallizing as conglomerates. Resolution is effected from supersaturated solutions of these which is carried out in the presence of a polymer bound inhibitor of crystallization of the one form, resulting in the preferred crystallization of the one form, and when the other form is desired - in the presence of such inhibitor for the other form. Amongst racemic mixtures amenable to this process are amino acids.
The process can be carried out in a two-compartment device, where the compartments are separated by a membrane which is permeable to the constituents of the racemate, while it is impervious to the polymer-bound inhibitor for the crystallization of one of the racemic forms.
本发明涉及一种对结晶为聚合体的 D、L 外消旋体混合物进行动力学解析的工艺,该工艺是在一种外消旋体结晶的聚合物结合
抑制剂存在的情况下,从这些外消旋体的过饱和溶液中进行解析,从而使一种外消旋体优先结晶,而当需要另一种外消旋体时,则在另一种外消旋体的聚合物结合
抑制剂存在的情况下进行解析。 适用于该工艺的外消旋体混合物包括
氨基酸。 该工艺可在一个两室装置中进行,两室之间由一层膜隔开,这层膜对外消旋体的成分具有渗透性,而对一种外消旋体结晶的聚合物结合
抑制剂则没有渗透性。