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New Active Pharmaceutical Ingredient-Ionic Liquids (API-ILs) Derived from Indomethacin and Mebendazole

Emilia Tojo
2018 Proceedings (MDPI)  
The transformation of two solid Active Pharmaceutical Ingredients (APIs) into new ionic liquids (IL)s that incorporate APIs (API-ILs) is reported. The structures of the APIs (indomethacin and mebendazole) were selected by their susceptibility to being transformed into API-ILs (either to form the cation or the anion) and their limited bioavailability due to their low solubility in water. The counterions, such as those derived from 2-dimethylaminoethanol (DMEA), tetramethylguanidine (TMG),
more » ... idine (TMG), 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), 1,4-diazabicyclo[2.2.2] (TED), <i>p</i>-toluensulfonic acid, glycolic acid, methanesulfonic acid, and saccharin, were carefully chosen, aiming for high biocompatibility, low toxicity, and high water solubility. The synthesis was carried out by direct treatment of the API with the corresponding selected acid or base. Finally, the solubility in water of all the synthesized salts was determined.
doi:10.3390/ecsoc-22-05781 fatcat:tapgqcygvnbwhghkhj42nffjfe