Thioureas and their cyclized derivatives: Synthesis, conformational analysis and antimicrobial evaluation
作者:Senel Teke Tuncel、Sule Erol Gunal、Melike Ekizoglu、Nesrin Gokhan Kelekci、Safiye S. Erdem、Ece Bulak、Wolfgang Frey、Ilknur Dogan
DOI:10.1016/j.molstruc.2018.10.055
日期:2019.3
conformation. The thiazolidin-4-ones have been found to be present only in the anti-conformation. All compounds were screened for antimicrobial activity against 4 bacteria. For three of the compounds with the highest antimicrobial activity, the antimicrobial evaluation was expanded using more reference strains and clinical isolates. Among the compounds studied the 5-benzylidene-thiazolidine-4-ones 15RR, 15SS
摘要 几种单一的对映异构体硫脲已被合成并转化为它们的环状衍生物:2-imino-thiazolidin-4-ones。硫脲的构象已在溶液和固态中测定。在溶液中;已经观察到 E,Z 和 Z,E 构象之间的相互转换,ΔG≠ 值约为 50 kJ/mol,而在固态下它们显示具有 Z,Z 构象。已发现 thiazolidin-4-ones 仅存在于反构象中。筛选所有化合物对 4 种细菌的抗微生物活性。对于具有最高抗菌活性的三种化合物,使用更多参考菌株和临床分离株扩大了抗菌评估。在研究的化合物中,5-苯亚甲基-噻唑烷-4-酮 15RR,15SS 和带有苄基吡咯烷支架的硫脲 5RR 显示出比其他更好的抗菌活性。发现所有化合物的杀真菌活性均优于杀菌活性。