Practical Synthesis of Quinoxalinones via Palladium-Catalyzed Intramolecular N-Arylations
作者:Xuehong Luo、Etienne Chenard、Peter Martens、Yun-Xing Cheng、Mirosław J. Tomaszewski
DOI:10.1021/ol101454x
日期:2010.8.20
A practical and highly efficient route to the synthesis of pharmaceutically interesting quinoxalinone scaffolds is reported. The key step involves an intramolecularpalladium-catalyzedN-arylation under microwave irradiation. The developed methodology tolerates a variety of bromoanilides to afford a diverse collection of bicyclic and polycyclic quinoxalinones in high yield.
EP2/4 compounds having improved dual pharmacological activity are described. The uniqueness of using EP2/4 dual agonists resides in their ability to modify both uveoscleral outflow via the ciliary muscle and conventional outflow via trabecular meshwork and Schlemm's canal all in the same treatment paradigm. The compounds can be employed for the treatment of glaucoma and ocular hypertension. Formula (I).