94565-92-1Relevant academic research and scientific papers
1-(2-Hydroxybenzoyl)-thiosemicarbazides are promising antimicrobial agents targeting D-alanine-D-alanine ligase in bacterio
Ameryckx, Alice,Thabault, Léopold,Pochet, Lionel,Leimanis, Serge,Poupaert, Jacques H.,Wouters, Johan,Joris, Bernard,Van Bambeke, Fran?oise,Frédérick, Rapha?l
, p. 324 - 338 (2018)
The bacterial cell wall and the enzymes involved in peptidoglycan synthesis are privileged targets for the development of novel antibacterial agents. In this work, a series of 1-(2-hydroxybenzoyl)-thiosemicarbazides inhibitors of D-Ala-D-Ala ligase (Ddl) were designed and synthesized in order to target resistant strains of bacteria. Among these, the 4-(3,4-dichlorophenyl)-1-(2-hydroxybenzoyl)-3-thiosemicarbazide 29 was identified as a potent Ddl inhibitor with activity in the micromolar range. This compound, possessing strong antimicrobial activity including against multidrug resistant strains, was proven to act through a bactericidal mechanism and demonstrated very low cytotoxicity on THP-1 human monocytic cell line. Inhibition of Ddl activity by 29 was confirmed in bacterio using UPLC-MS/MS by demonstrating an increase in D-Ala intracellular pools accompanied by a commensurate decrease in D-Ala-D-Ala. Further structure-activity relationships (SARs) studies provided evidence that the hydroxyl substituent in the 2-position (R1) of the benzoylthiosemicarbazide scaffold is essential for the enzymatic inhibition. This work thus highlights the 1-(2-hydroxybenzoyl)-thiosemicarbazide motif as a very promising tool for the development of novel antibacterial compounds acting through an interesting mechanism of action and low cytotoxicity.
Synthesis, molecular docking, and evaluation of antibacterial activity of 1,2,4-triazole-norfloxacin hybrids
Yang, Ping,Luo, Jia-Bao,Wang, Zi-Zhou,Zhang, Li-Lei,Feng, Jin,Xie, Xiao-Bao,Shi, Qing-Shan,Zhang, Xin-Guo
, (2021/09/04)
A series of 1,2,4-triazole-norfloxacin hybrids was designed, synthesized, and evaluated for in vitro antibacterial activity against common pathogens. All the newly synthesized compounds were characterized by Fourier-transform infrared spectrophotometry, p
Syntheses of new 3-thiazolyl coumarin derivatives, in?vitro α-glucosidase inhibitory activity, and molecular modeling studies
Salar, Uzma,Taha, Muhammad,Khan, Khalid Mohammed,Ismail, Nor Hadiani,Imran, Syahrul,Perveen, Shahnaz,Gul, Sahib,Wadood, Abdul
, p. 196 - 204 (2016/07/07)
3-Thiazolylcoumarin derivatives 1–14 were synthesized via one-pot two step reactions, and screened for in?vitro α-glucosidase inhibitory activity. All compounds showed inhibitory activity in the range of IC50?=?0.12?±?0.01–16.20?±?0.23?μM as co
Structure-activity relationship studies of microbiologically active thiosemicarbazides derived from hydroxybenzoic acid hydrazides
Plech, Tomasz,Paneth, Agata,Kapro, Barbara,Kosikowska, Urszula,Malm, Anna,Strzelczyk, Aleksandra,Staczek, Pawel
, p. 315 - 325 (2015/03/04)
Forty-five derivatives of thiosemicarbazide were synthesized, and their antibacterial activity against Gram-positive and Gram-negative bacteria was evaluated. Some of the described compounds exhibited interesting activity against reference strains of Gram
