A general method for the highly diastereoselective, kinetically controlled alkylation of (+)-nopinone
作者:Kevin R Campos、Sandra Lee、Michel Journet、Jason J Kowal、Dongwei Cai、Robert D Larsen、Paul J Reider
DOI:10.1016/s0040-4039(02)01589-7
日期:2002.9
A generalmethod for the monoalkylation of (+)-nopinone was developed for a variety of carbon and heteroatom electrophiles to afford the kinetically controlled product 2 with high diastereoselectivity (98% d.e.) and excellent yield (75–90%).
The present invention provides an efficient process for the preparation of benzothiophenecarboxamide PGD2 antagonist, S-5751.
本发明提供了一种高效的制备苯并噻吩羧酰胺PGD2拮抗剂S-5751的方法。
A Practical Synthesis for the Core Structure of a Family of Selective Prostaglandin D<sub>2</sub> Receptor Antagonists
作者:Kevin R. Campos、Michel Journet、Dongwei Cai、Jason J. Kowal、Sandra Lee、Robert D. Larsen、Paul J. Reider
DOI:10.1021/jo026511g
日期:2003.3.1
A convergent synthesis was developed for the production of the corestructure of prostaglandin D(2) receptor antagonists for the treatment of allergic rhinitis. The key steps in this synthesis were a highly diastereoselective alkylation of (+)-nopinone, a chemo- and stereoselective reduction of an oxime to an amine, and a well-controlled reduction of an aminoalkyne to a (Z)-olefin.