Thiosemicarbazones and thiadiazines derived from fluorinated benzoylthioureas: Synthesis, crystal structure and anti-Trypanosoma cruzi activity
作者:Federico Salsi、Gisele Bulhões Portapilla、Konstantin Schutjajew、Zumira Aparecida Carneiro、Adelheid Hagenbach、Sérgio de Albuquerque、Pedro Ivo da Silva Maia、Ulrich Abram
DOI:10.1016/j.jfluchem.2018.08.004
日期:2018.11
A series of thiosemicarbazones was obtained by condensation of halogenated N-(diethylaminothiocarbonyl)benzimidoyl chlorides (3b–3h) with 4,4-dimethyl-3-thiosemicarbazide. The activity of the halogenated compounds against the parasite Trypanosoma cruzi was evaluated and compared to the previously reported activity of the corresponding non-substituted thiosemicarbazone. It was found that the halogen-substitution
通过将卤化的N-(二乙基氨基硫代羰基)苯甲酰氯(3b–3h)与4,4-二甲基-3-硫代氨基脲缩合,可获得一系列的硫代氨基脲。评估了卤代化合物对寄生虫克氏锥虫的活性,并将其与先前报道的相应的未取代的硫代半脲的活性进行了比较。发现在大多数情况下卤素取代增强了抗寄生虫活性。所述元-fluorinated化合物(4克)被确定为最有效的一个(IC 50 = 9.0μM,CC 50 > 200μM),具有选择性指数(SI = IC 50 / CC 50),比未取代的化合物高4倍。合成某些苯甲酰硫脲3a-3g所用反应条件的轻微改变导致意外形成了新型卤代6-氨基-1,3,5-噻二嗪-2-硫酮。