Design, synthesis and anti-tubercular evaluation of new 2-acylated and 2-alkylated amino-5-(4-(benzyloxy)phenyl)thiophene-3-carboxylic acid derivatives. Part 1
摘要:
A series of 2-acylated and 2-alkylated amino-5-(4-(benzyloxy)phenyl)thiophene-3-carboxylic acid derivatives were synthesized and evaluated for anti-tubercular activity. Among these compounds, 10d, 15, 12h and 12k inhibited Mycobacterium tuberculosis (Mtb) growth with MIC values between 1.9 and 7.7 mu M and low toxicity against VERO cells. The four compounds were also tested against multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) clinical strains, which were found to show moderate activity. In addition, molecular docking simulation was performed to position compounds 10d, 15, 12h and 12k into mtFabH active site to predict the probable binding mode. These studies thus suggest that the designed 2-amino-5-phenylthiophene-3-carboxylic acid scaffold may serve as new promising template for further elaboration as anti-TB drugs. (C) 2011 Elsevier Masson SAS. All rights reserved.
Design, synthesis and anti-tubercular evaluation of new 2-acylated and 2-alkylated amino-5-(4-(benzyloxy)phenyl)thiophene-3-carboxylic acid derivatives. Part 1
摘要:
A series of 2-acylated and 2-alkylated amino-5-(4-(benzyloxy)phenyl)thiophene-3-carboxylic acid derivatives were synthesized and evaluated for anti-tubercular activity. Among these compounds, 10d, 15, 12h and 12k inhibited Mycobacterium tuberculosis (Mtb) growth with MIC values between 1.9 and 7.7 mu M and low toxicity against VERO cells. The four compounds were also tested against multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) clinical strains, which were found to show moderate activity. In addition, molecular docking simulation was performed to position compounds 10d, 15, 12h and 12k into mtFabH active site to predict the probable binding mode. These studies thus suggest that the designed 2-amino-5-phenylthiophene-3-carboxylic acid scaffold may serve as new promising template for further elaboration as anti-TB drugs. (C) 2011 Elsevier Masson SAS. All rights reserved.
Novel immunomodulators based on an oxazolin-2-one-4-carboxamide scaffold
作者:Xinhua He、Lili Wang、Zhibing Zheng、Junhai Xiao、Wu Zhong、Song Li
DOI:10.1016/j.bmcl.2011.10.088
日期:2012.1
A series of oxazolidin-2-one-4-carboxylic amide compounds (1a-f) were designed and synthesized as the non-phosphate S1P1 receptor agonists. The single crystal of 1e was prepared and solved to elucidate the structure of 1a-f. EC(50) of 1a-d were about 1.1-3.6 mu M in S1P(1) Redistribution (R) assay, and their cytotoxicity was 8-40-fold lower than FTY720. Though its S1P(1) agonist activities in vitro were about 1000-folds weaker than (S)-FTY720-P, at a dose of 10 mg/Kg, the immunosuppressive effects of 1a were comparable to FTY720. So oxazolidin-2-one-4-carboxylic amide derivatives were found as potential immunomodulator, compound 1a could be considered as a lead compound, rational modifications of 1a are anticipated using medicinal chemistry techniques and molecular modeling to obtain analogs with higher affinity and better clinical therapeutic properties. (C) 2011 Elsevier Ltd. All rights reserved.
Design, synthesis and anti-tubercular evaluation of new 2-acylated and 2-alkylated amino-5-(4-(benzyloxy)phenyl)thiophene-3-carboxylic acid derivatives. Part 1
作者:Xiaoyun Lu、Baojie Wan、Scott G. Franzblau、Qidong You
DOI:10.1016/j.ejmech.2011.05.018
日期:2011.9
A series of 2-acylated and 2-alkylated amino-5-(4-(benzyloxy)phenyl)thiophene-3-carboxylic acid derivatives were synthesized and evaluated for anti-tubercular activity. Among these compounds, 10d, 15, 12h and 12k inhibited Mycobacterium tuberculosis (Mtb) growth with MIC values between 1.9 and 7.7 mu M and low toxicity against VERO cells. The four compounds were also tested against multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) clinical strains, which were found to show moderate activity. In addition, molecular docking simulation was performed to position compounds 10d, 15, 12h and 12k into mtFabH active site to predict the probable binding mode. These studies thus suggest that the designed 2-amino-5-phenylthiophene-3-carboxylic acid scaffold may serve as new promising template for further elaboration as anti-TB drugs. (C) 2011 Elsevier Masson SAS. All rights reserved.