Structure-activity relationship for the oxadiazole class of antibiotics

Edward Spink; Derong Ding; Zhihong Peng; Marc A. Boudreau; Erika Leemans; Elena Lastochkin; Wei Song; Katerina Lichtenwalter; Peter I. O'Daniel; Sebastian A. Testero; Hualiang Pi; Valerie A. Schroeder; William R. Wolter; Nuno T. Antunes; Mark A. Suckow; Sergei Vakulenko; Mayland Chang; Shahriar Mobashery

doi:10.1021/jm501661f

Structure-activity relationship for the oxadiazole class of antibiotics

Edward Spink, Derong Ding, Zhihong Peng, Marc A. Boudreau, Erika Leemans, Elena Lastochkin, Wei Song, Katerina Lichtenwalter, Peter I. O'Daniel, Sebastian A. Testero, Hualiang Pi, Valerie A. Schroeder, William R. Wolter, Nuno T. Antunes, Mark A. Suckow, Sergei Vakulenko, Mayland Chang, Shahriar Mobashery

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Abstract

The structure-activity relationship (SAR) for the newly discovered oxadiazole class of antibiotics is described with evaluation of 120 derivatives of the lead structure. This class of antibiotics was discovered by in silico docking and scoring against the crystal structure of a penicillin-binding protein. They impair cell-wall biosynthesis and exhibit activities against the Gram-positive bacterium Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA) and vancomycin-resistant and linezolid-resistant S. aureus. 5-(1H-Indol-5-yl)-3-(4-(4-(trifluoromethyl)phenoxy)phenyl)-1,2,4-oxadiazole (antibiotic 75b) was efficacious in a mouse model of MRSA infection, exhibiting a long half-life, a high volume of distribution, and low clearance. This antibiotic is bactericidal and is orally bioavailable in mice. This class of antibiotics holds great promise in recourse against infections by MRSA.

Original language	English (US)
Pages (from-to)	1380-1389
Number of pages	10
Journal	Journal of medicinal chemistry
Volume	58
Issue number	3
DOIs	https://doi.org/10.1021/jm501661f
State	Published - Feb 12 2015

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© 2015 American Chemical Society.

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Spink, E., Ding, D., Peng, Z., Boudreau, M. A., Leemans, E., Lastochkin, E., Song, W., Lichtenwalter, K., O'Daniel, P. I., Testero, S. A., Pi, H., Schroeder, V. A., Wolter, W. R., Antunes, N. T., Suckow, M. A., Vakulenko, S., Chang, M., & Mobashery, S. (2015). Structure-activity relationship for the oxadiazole class of antibiotics. Journal of medicinal chemistry, 58(3), 1380-1389. https://doi.org/10.1021/jm501661f

Spink, E, Ding, D, Peng, Z, Boudreau, MA, Leemans, E, Lastochkin, E, Song, W, Lichtenwalter, K, O'Daniel, PI, Testero, SA, Pi, H, Schroeder, VA, Wolter, WR, Antunes, NT, Suckow, MA, Vakulenko, S, Chang, M & Mobashery, S 2015, 'Structure-activity relationship for the oxadiazole class of antibiotics', Journal of medicinal chemistry, vol. 58, no. 3, pp. 1380-1389. https://doi.org/10.1021/jm501661f

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Structure-activity relationship for the oxadiazole class of antibiotics

Abstract

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