3 years ago

Addressing the Metabolic Stability of Antituberculars through Machine Learning

Addressing the Metabolic Stability of Antituberculars through Machine Learning
Shao-Gang Li, Thomas P. Stratton, Sean Ekins, William R. Jacobs, Jimmy S. Patel, Nancy Connell, Catherine Vilchèze, Joel S. Freundlich, Alexander L. Perryman, Eric Singleton, Riccardo Russo
We present the first prospective application of our mouse liver microsomal (MLM) stability Bayesian model. CD117, an antitubercular thienopyrimidine tool compound that suffers from metabolic instability (MLM t1/2 < 1 min), was utilized to assess the predictive power of our new MLM stability model. The S-substituent was removed, a set of commercial reagents was utilized to construct a virtual library of 411 analogues, and our MLM stability model was applied to prioritize 13 analogues for synthesis and biological profiling. In MLM stability assays, all 13 analogues had superior metabolic stability to the parent compound, and six new analogues had acceptable MLM t1/2 values greater than or equal to 60 min. It is noteworthy that whole-cell efficacy and lack of relative mammalian cell cytotoxicity could not be predicted simultaneously. These results support the utility of our new MLM stability model in chemical tool and drug discovery optimization efforts.

Publisher URL: http://dx.doi.org/10.1021/acsmedchemlett.7b00299

DOI: 10.1021/acsmedchemlett.7b00299

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