Asymmetric Synthesis of a Prostaglandin D<sub>2</sub> Receptor Antagonist
作者:Kevin R. Campos、Michel Journet、Sandra Lee、Edward J. J. Grabowski、Richard D. Tillyer
DOI:10.1021/jo048305+
日期:2005.1.1
An asymmetric synthesis was developed for the production of a prostaglandinD2 receptor antagonist for the treatment of allergic rhinitis. The stereogenic center was set using asymmetric allylic alkylation chemistry, and the core of the structure was constructed via Pd-catalyzed N-cyclization/Heck methodology. The synthesis relies on a late stage indoline oxidation which does not racemize the product