6-Aryl-1,4-dihydro-benzo[d][1,3]oxazin- 2-ones: A Novel Class of Potent, Selective, and Orally Active Nonsteroidal Progesterone Receptor Antagonists
Journal of Medicinal Chemistry2002Vol. 45(20), pp. 4379–4382
Citations Over TimeTop 20% of 2002 papers
Puwen Zhang, Eugene A. Terefenko, Andrew Fensome, Jay Wrobel, Richard C. Winneker, Scott G. Lundeen, Keith B. Marschke, Zhiming Zhang
Abstract
Novel 6-aryl-1,4-dihydro-benzo[d][1,3]oxazin-2-ones were synthesized and tested as progesterone receptor (PR) antagonists. These compounds were potent and showed good selectivity for PR over other steroid receptors such as the glucocorticoid and androgen receptors (e.g., greater than 80-fold selectivity at PR for 4h). Numerous 6-aryl benzoxazinones (e.g., 4h-j) were active orally in the uterine decidualization and component C3 assays in the rats. In these in vivo models,4h had potencies comparable to mifepristone.
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