A process for separating the diastereomers of RSS— and SSS—N-α[1-carboxy-3-phenylpropyl]lysylproline is described. Previous chromatographic processes for separating the diastereomers of this peptide active substance, such as for example adsorption chromatography, exhibited disadvantages with regard to the solvents used and throughput. These disadvantages do not occur if basic ion exchangers are used in the chromatographic separation of the diastereomers. In particular, purely aqueous solutions may be used as the eluent.
描述了一种分离RSS-和
SSS-N-α[1-羧基-3-苯基丙基]赖
氨酸脯肽二对映体的方法。先前用于分离这种肽活性物质二对映体的色谱过程,例如吸附色谱,存在与所使用的溶剂和通量相关的缺点。如果在分离二对映体的色谱中使用碱性离子交换剂,则不会出现这些缺点。特别地,纯
水溶液可以用作洗脱剂。