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Solvates, Salts, and Cocrystals: A Proposal for a Feasible Classification System

机译:溶剂化物,盐和共结晶:可行分类系统的建议

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The design of pharmaceutical cocrystals has initiated widespread debate on the classification of cocrystals. Current attempts to classify multicomponent crystals suffer from ambiguity, which has led to inconsistent definitions for cocrystals and for multicomponent crystals in general. Inspired by the work of Aitipamula et al. (Cryst. Growth Des. 2012, 12, 2147-2152), we present a feasible classification system for all multicomponent crystals. The present classification enables us to analyze and classify multicomponent crystal structures present in the Cambridge Structural Database (CSD). This reveals that all seven classes proposed are relevant in terms of frequency of occurrence. Lists of CSD refcodes for all classes are provided. We identified over 5000 cocrystals in the CSD, as well as over 12 000 crystals with more than two components. This illustrates that the possibilities for alternative drug formulations can be increased significantly by considering more than two components in drug design.
机译:药物共晶体的设计引发了有关共晶体分类的广泛争论。当前对多组分晶体进行分类的尝试存在歧义,这导致了对共晶体和通常对多组分晶体的定义不一致。受Aitipamula等人的工作启发。 (Cryst。Growth Des。2012,12,2147-2152),我们提出了一种适用于所有多组分晶体的可行分类系统。目前的分类使我们能够分析和分类存在于剑桥结构数据库(CSD)中的多组分晶体结构。这表明,提出的所有七个类别在发生频率方面都是相关的。提供了所有类的CSD参考代码列表。我们在CSD中鉴定出5000多个共晶体,以及超过12 000个具有两个以上成分的晶体。这说明通过在药物设计中考虑两个以上的成分,可以显着增加替代药物制剂的可能性。

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