Geminal diesters, N-alkyl/aryl-2,2-bis(ethoxycarbonyl)vinylamines, were found to undergo selective hydrolysis in the presence of BF3·OEt2 at room temperature to give the corresponding half esters. Neighboring group participation by nitrogen in the hydrolysis was observed. This method is useful for the preparation of highly functionalized malonic acid half esters.
The present invention provides process for the preparation of ivacaftor and solvates thereof.
本发明提供一种制备伊瓦卡托及其溶剂化物的工艺。
US9550735B2
申请人:——
公开号:US9550735B2
公开(公告)日:2017-01-24
[EN] PHARMACEUTICAL COMPOSITIONS AND ADMINISTRATIONS THEREOF<br/>[FR] COMPOSITIONS PHARMACEUTIQUES ET LEURS ADMINISTRATIONS
申请人:VERTEX PHARMA
公开号:WO2011133951A1
公开(公告)日:2011-10-27
The present invention relates to pharmaceutical compositions comprising a compound of Formula I in combination with one or both of a Compound of Formula II and/or a Compound of Formula III. The invention also relates to solid forms and to pharmaceutical formulations thereof, and to methods of using such compositions in the treatment of CFTR mediated diseases, particularly cystic fibrosis.