This research aimed to propose molecular modifications and compare the characteristics of three barbiturate drugs and their analogues developed in silico through procedures and computational techniques using free programs. Barbiturates were the class chosen for this study, the selected drugs were: Phenobarbital, Pentobarbital and Amobarbital, being modified through simulations in silico. Three analogues were proposed, being analyzed and compared with the prototypes, using the free programs, Marvinsketch, where it was possible to evaluate parameters such as: Log P, hydrogen donors/acceptors and Van Der Walls Surface. In PreADMET, parameters such as BHE, HIA, Caco-2, MDCK, CYP-3A4, Ames Test, Carcinogenicity (Rats) and hERG Risk were obtained. Through the Osiris Property Explorer, the following parameters were evaluated: Mutagenicity, tumorigenicity, irritability, reproductive effect, solubility, molecular weight, polarity, druglikeness and Drug-Score. With the results obtained in PreADMET referring to BHE, the analogues BBT-F and BBT-A obtained better results, while the BBT-P had a worsening in the result. In relation to HIA, the values proved to be satisfactory, exhibiting good intestinal absorption. As for toxicity, the Ames test was verified, where all molecules were mutagenic. With the results obtained in Osiris, all the prototype drugs proved to be mutagenic, while in the analogues, only BBT-P showed mutagenicity. As for tumorigenicity, the prototype drugs remained at medium to high risk, while analogue drugs all showed non-tumorigenic results. Therefore, it is concluded that it was possible to make a preliminary, fast and low-cost analysis, helping in the research of new drugs through computational tools.
Este trabalho teve como objetivo propor modificações moleculares e comparar as características de três fármacos barbitúricos e de seus análogos desenvolvidos in sílico através de procedimentos e técnicas computacionais utilizando programas gratuitos. Os barbitúricos foram a classe escolhida para esse estudo, os fármacos selecionados foram: Fenobarbital, Pentobarbital e Amobarbital, sendo modificados através de simulações in sílico. Foram propostos três análogos, sendo analisados e comparados com os protótipos, utilizando os programas gratuitos, Marvinsketch, onde foi possível avaliar parâmetros como: Log P, doadores/aceptores de hidrogênio e Superfície de Van Der Walls. No PreADMET se obteve parâmetros como BHE, HIA, Caco-2, MDCK, CYP-3A4, Teste Ames, Carcinogenicidade (Ratos) e Risco hERG. Através do Osiris Property Explorer, foi avaliado os seguintes parâmetros: Mutagenicidade, tumorigenicidade, irritabilidade, efeito reprodutivo, solubilidade, peso molecular, polaridade, druglikeness e Drug-Score. Com os resultados obtidos no PreADMET referentes a BHE, os análogos BBT-F e BBT-A obtiveram melhores resultados, enquanto o BBT-P houve piora no resultado. Em relação ao HIA, os valores se mostraram satisfatórios, apresentando uma boa absorção intestinal. Quanto a toxicidade, foi verificado o teste de Ames, onde todas as moléculas se apresentaram mutagênicas. Com os resultados obtidos no Osíris, todos os fármacos protótipos se mostraram mutagênicos, enquanto nos análogos, apenas o BBT-P apresentou mutagenicidade. Quanto a tumorigenicidade, os fármacos protótipos se mantiveram em risco médio a elevado, enquanto os fármacos análogos, todos apresentaram resultados não tumorigênicos. Portanto, conclui-se que foi possível fazer uma análise preliminar, rápida e de baixo custo, auxiliando na pesquisa de novos fármacos através de ferramentas computacionais.
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