SYNTHESIS OF OSELTAMIVIR CONTAINING PHOSPHONATE CONGENERS WITH ANTI-INFLUENZA ACTIVITY
申请人:Wong Chi-Huey
公开号:US20100113397A1
公开(公告)日:2010-05-06
Novel phosphonate compounds are described. The compounds have activity as neuraminidase inhibitors against wild-type and H274Y mutant of H1N1 and H5N1 viruses. The present disclosure also provides an enantioselective synthetic route to known neuraminidase inhibitors oseltamivir and the anti-flu drug Tamiflu®, as well as novel phosphonate compounds, via D-xylose. Another efficient and flexible synthesis of Tamiflu and the highly potent neuraminidase inhibitor Tamiphosphor was also achieved in 11 steps and >20% overall yields from the readily available fermentation product (1S-cis)-3-bromo-3,5-cyclohexadiene-1,2-diol. Most of the reaction intermediates were obtained as crystals without tedious purification procedures. The key transformations include an initial regio- and stereoselective bromoamidation of a bromoarene cis-dihydrodiol, as well as the final palladium-catalyzed carbonylation and phosphonylation.
本文描述了新型膦酸盐化合物。这些化合物对H1N1和H5N1病毒的野生型和H274Y突变体具有神经氨酸酶抑制剂活性。本公开还提供了一种手性选择性的合成路线,可通过D-木糖合成已知的神经氨酸酶抑制剂奥司他韦和抗流感药物达菲®,以及新型膦酸盐化合物。另外,还通过11个步骤和>20%的总收率,从易得到的发酵产物(1S-cis)-3-溴-3,5-环己二烯-1,2-二醇中实现了达菲和高效神经氨酸酶抑制剂Tamiphosphor的有效灵活合成。大多数反应中间体都以晶体形式获得,无需繁琐的纯化程序。关键的转化包括最初的区域和立体选择性的溴胺化反应,以及最后的钯催化的羰基化和膦酸盐化反应。