Synthetic and Mechanistic Study of the Catalytic Enantioselective Preparation of Primary β-Amino Ketones from Enones and a Fluorinated Gabriel Reagent
作者:Shlomit Avidan-Shlomovich、Harisadhan Ghosh、Alex M. Szpilman
DOI:10.1021/cs501744e
日期:2015.1.2
the free primary amines. Mechanistic studies suggest that the reaction occurs through a dual activation mechanism. A pre-equilibrium formation of a 1:1 complex between tetrafluorophthalimide and the catalyst is observed. The rate-determining step is the addition of tetrafluorophthalimide catalyst complex to the catalyst activated enone. These mechanistic studies provide important clues for the further
[EN] γ-SPIROKETAL- γ –LACTONES AND PHARMACEUTICAL COMPOSITION CONTAINING SAME AND PROCESS FOR PREPARATION THEREOF<br/>[FR] γ-SPIROCÉTAL- γ –LACTONES, COMPOSITION PHARMACEUTIQUE LES CONTENANT ET PROCÉDÉ DE PRÉPARATION CORRESPONDANT
申请人:COUNCIL SCIENT IND RES
公开号:WO2018203346A1
公开(公告)日:2018-11-08
The present invention relates to γ-spiroketal- γ -lactones of formula (I) or a stereoisomer, ester, hydrate, solvate or pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier, diluent or excipient and a process for preparation thereof. The present invention further provides a pharmaceutical composition comprising γ-spiroketal-γ-lactones of formula (I) or a salt thereof.
γ-spiroketal-γ-lactones and pharmaceutical composition containing same and process for preparation thereof
申请人:Council of Scientific and Industrial Research
公开号:US11339174B2
公开(公告)日:2022-05-24
The present invention relates to γ-spiroketal-γ-lactones of formula (I) or a stereoisomer, ester, hydrate, solvate or pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier, diluent or excipient and a process for preparation thereof. The present invention further provides a pharmaceutical composition comprising γ-spiroketal-γ-lactones of formula (I) or a salt thereof.