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Multicomponent Adducts of Pyridoxine: An Evaluation of the Formation of Eutectics and Molecular Salts

机译:吡rid醇的多组分加合物:共晶和分子盐形成的评价

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摘要

Cocrystallization of pyridoxine (vitamin B6) with several biologically important molecules was undertaken with the intent of successfully designing various hydrogen bonded adducts such as salts, cocrystals, and eutectics. Pyridoxine formed eutectics with isoniazid (an antitubercular drug) and nicotinic acid (vitamin B3) and molecular salts with para-aminobenzoic acid (a bioactive) and saccharin (an artificial sweetener), respectively, in accordance to our design strategy. A salt cocrystal, a precisely conjugate acid-base cocrystal, was obtained for the pyridoxine-para-nitrobenzoic acid combination. The role of supramolecular affinity of hydrogen bonding functional groups and Delta pK(a) differences leading to the formation of above diverse adducts was discussed. This study underpins the need for full-fledged supramolecular compatibility studies of multivitamin/drug combinations toward the development of optimal and/or synergistic combination formulations.
机译:吡ido醇(维生素B6)与几种生物学上重要的分子进行了共结晶,目的是成功设计出各种氢键加成物,例如盐,共晶体和低共熔物。根据我们的设计策略,吡rid醇分别与异烟肼(一种抗结核药)和烟酸(维生素B3)形成共晶,并与对氨基苯甲酸(一种生物活性物质)和糖精(一种人造甜味剂)形成分子盐。对于吡ido醇-对硝基苯甲酸组合,获得了盐共晶体,即精确的共轭酸-碱共晶体。讨论了氢键官能团的超分子亲和力和Delta pK(a)差异导致上述各种加合物形成的作用。这项研究强调了对多种维生素/药物组合进行全面的超分子相容性研究的需求,以开发最佳和/或协同组合制剂。

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