许多三氟甲氧基化方法经常提出亲核 AgOCF 3作为关键中间体。然而,这种中间体的结构仍然难以捉摸。在此,制备了热稳定、光不敏感的亲核三氟甲氧基化试剂[Ag(PPh t Bu 2 )(OCF 3 )] ( 1 )并进行了充分表征。试剂1与多种烷基亲电子试剂反应,包括苄基溴/氯化物、伯烷基溴/碘化物/三氟甲磺酸酯/对硝基苯磺酸酯和仲烷基溴化物/三氟甲磺酸酯/对硝基苯磺酸酯,产率良好至优异。通过与三种对映体富集的二级烷基亲电子试剂反应进行的机理研究表明,这些反应通过 S N 2 途径进行,这与我们最初的机理假设一致。
许多三氟甲氧基化方法经常提出亲核 AgOCF 3作为关键中间体。然而,这种中间体的结构仍然难以捉摸。在此,制备了热稳定、光不敏感的亲核三氟甲氧基化试剂[Ag(PPh t Bu 2 )(OCF 3 )] ( 1 )并进行了充分表征。试剂1与多种烷基亲电子试剂反应,包括苄基溴/氯化物、伯烷基溴/碘化物/三氟甲磺酸酯/对硝基苯磺酸酯和仲烷基溴化物/三氟甲磺酸酯/对硝基苯磺酸酯,产率良好至优异。通过与三种对映体富集的二级烷基亲电子试剂反应进行的机理研究表明,这些反应通过 S N 2 途径进行,这与我们最初的机理假设一致。
[EN] NOVEL OXABISPIDINE COMPOUNDS AND THEIR USE IN THE TREATMENT OF CARDIAC ARRHYTHMIAS<br/>[FR] NOUVEAUX COMPOSES D'OXABISPIDINE ET LEUR UTILISATION DANS LE TRAITEMENT D'ARYTHMIES CARDIAQUES
申请人:ASTRAZENECA AB
公开号:WO2005123747A1
公开(公告)日:2005-12-29
There is provided compounds of formula I, wherein R1, R2, R4, R41 to R46, A, B and G have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.
Novel Oxabispidine Compounds And Their Use In The Treatment Of Cardiac Arrhythmias
申请人:Bjore Annika
公开号:US20080319198A2
公开(公告)日:2008-12-25
There is provided compounds of formula I,
wherein R
1
, R
2
, R
4
, R
41
to R
46
, A, B and G have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.
Novel Oxabispidine Compounds and Their Use in the Treatment of Cardiac Arrhythmias
申请人:Bjore Annika
公开号:US20070259864A1
公开(公告)日:2007-11-08
There is provided compounds of formula I, wherein R
1
, R
2
, R
4
, R
41
to R
46
, A, B and G have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.
Oxabispidine compounds and their use in the treatment of cardiac arrhythmias
申请人:AstraZeneca AB
公开号:US07354917B2
公开(公告)日:2008-04-08
There is provided compounds of formula I, wherein R1, R2, R4, R41 to R46, A, B and G have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular a trial and ventricular arrhythmias.