The effect of solution environment and the electrostatic factor on the crystallisation of desmotropes of irbesartan
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| Авторы: | , , , , , , , |
|---|---|
| Формат: | artículo |
| Дата публикации: | 2019 |
| Описание: | The experimental conditions necessary for stabilising irbesartan (IBS) tautomers in solution and selectively obtaining the desmotropic crystal forms are presented herein. 1H and 2H tautomers were stabilized in specific solution conditions and the 2H-tetrazole/imidazole interaction was confirmed by solution-state NMR. The results showed that highly polar and polarisable solvents (higher values of the electrostatic factor (EF)) lead to the crystallisation of IBS form B. Furthermore, the variations of pH in methanol, in turn, determined the crystallisation of desmotropes A and/or B |
| Страна: | Repositorio UNA |
| Институт: | Universidad Nacional de Costa Rica |
| Repositorio: | Repositorio UNA |
| Язык: | Inglés |
| OAI Identifier: | oai:null:11056/22338 |
| Online-ссылка: | http://hdl.handle.net/11056/22338 |
| Ключевое слово: | IRBESARTAN DESMOTROPIC FORMS TAUTOMERISM CRISTALIZACIÓN CRYSTALLIZATION |