Synthesis and Biological Evaluation of New Pleuromutilin Derivatives as Antibacterial Agents
Ruo-Feng Shang,
Guan-Hua Wang,
Xi-Ming Xu,
Si-Jie Liu,
Chao Zhang,
Yun-Peng Yi,
Jian-Ping Liang,
Yu Liu
Affiliations
Ruo-Feng Shang
Key Laboratory of New Animal Drug Project of Gansu Province, Key Laboratory of Veterinary Pharmaceutical Development, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Ministry of Agriculture, Lanzhou 730050, China
Guan-Hua Wang
School of Public Health, Lanzhou University, Lanzhou 730000, China
Xi-Ming Xu
Department of Toxicology, School of Public Health, Guiyang Medical University, Guiyang 550004, China
Si-Jie Liu
College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, China
Chao Zhang
Key Laboratory of New Animal Drug Project of Gansu Province, Key Laboratory of Veterinary Pharmaceutical Development, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Ministry of Agriculture, Lanzhou 730050, China
Yun-Peng Yi
Key Laboratory of New Animal Drug Project of Gansu Province, Key Laboratory of Veterinary Pharmaceutical Development, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Ministry of Agriculture, Lanzhou 730050, China
Jian-Ping Liang
Key Laboratory of New Animal Drug Project of Gansu Province, Key Laboratory of Veterinary Pharmaceutical Development, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Ministry of Agriculture, Lanzhou 730050, China
Yu Liu
Key Laboratory of New Animal Drug Project of Gansu Province, Key Laboratory of Veterinary Pharmaceutical Development, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Ministry of Agriculture, Lanzhou 730050, China
Several pleuromutilin derivatives possessing thiadiazole moieties were synthesized via acylation reactions under mild conditions. The in vitro antibacterial activities of the derivatives against methicillin-resistant S. aureus, methicillin-resistant S. epidermidis, S. aureus, S. epidermidis, E. coli, and B. cereus were tested by the agar dilution method and Oxford cup assay. All the screened compounds displayed potent activity. Compound 6d was the most active antibacterial agent because of its lowest MIC value and largest inhibition zone. Docking experiments were performed to understand the possible mode of the interactions between the derivatives and 50S ribosomal subunit. Moreover, the absorption, distribution, metabolism, excretion and toxicity properties of the synthesized compounds were analyzed after prediction using the Advanced Chemistry Development/Percepta Platform available online.
