1. Discovery of selective glucocorticoid receptor modulator MK-5932
- Author
-
Bungard, Christopher J., Hartman, George D., Manikowski, Jesse J., Perkins, James J., Bai, Chang, Brandish, Philip E., Euler, Danielle H., Hershey, James C., Schmidt, Azriel, Fang, Yulin, Norcross, Ryan T., Rushmore, Tom H., Thompson, Charles D., and Meissner, Robert S.
- Subjects
- *
PHARMACEUTICAL research , *GLUCOCORTICOID receptors , *AMIDES , *CYTOCHROME P-450 , *METABOLITES , *ANTI-inflammatory agents , *BIOREACTORS , *REDUCTASES - Abstract
Abstract: A series of partial agonists of the Glucocorticoid Receptor were prepared targeting reduced transactivation activity, while maintaining significant transrepression activity. Incorporation of an ortho-aryl amide produced compounds with the desired in vitro profile. Bioreactors consisting of Suspension cultures of Sf21 cells co expressing a CYP3A4 and NADPH-cytochrome P450 oxireductase were used to prepare the major metabolites of these compounds and revealed that oxidative N-dealkylation provided a pathway for formation of metabolites that were more agonistic than the parent partial agonists. Oxidative N-dealkylation was blocked in a new series of compounds, however oxidation alone was capable of producing full agonist metabolites. Incorporation of an ortho-primary amide and utilization of fluorine to modulate agonism afforded partial agonist MK-5932. Synthesis of the major metabolites of MK-5932 using bioreactor technology revealed that no significant GR-active metabolites were formed. Orally administered MK-5932 displayed anti-inflammatory efficacy in a Rat Oxazolone-induced chronic dermatitis model, while sparing plasma insulin. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
- View/download PDF