Exploring Formations of Thio-Thiol and Keto-Enol Tautomers for Structural Analysis of ۲-Thiouracil

Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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تاریخ نمایه سازی: 30 مرداد 1401


Formations of thio-thiol and keto-enol tautomers of ۲-thiouracil (۲TU) were investigated in this work for performing structural analysis by means of density functional theory (DFT) calculations. To this aim, existence of all possible structures were examined by movement of hydrogen atoms of amine groups to each of original thio and keto groups for formation of thiol and enol groups for new structures. Optimization calculations were performed to reach the minimum energy level for each investigated structure. The results showed that occurrence of such tautomerism processes could yield new features for the corresponding structures, in which variations were more or less significant in comparison with the original features. The important note is that formations of tautomers were possible meaning changes of expected activities regarding occurrence of such process in order to the concept of structure-activity relationship. Therefore, such computer-based works could provide information for examining such features in the tautomers of ۲TU, as a compound related to pharmaceutical applications, to manage somehow the structural features for the specified purposes.


Azar Asghari Pari

Department of Chemistry, Yadegar-e Imam Khomeini (RAH) Shahr-e-Rey Branch, Islamic Azad University, Tehran, Iran

Mohammad Yousefi

Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran