Substituted 4,5,6,7-tetrahydrothienopyridines as KCNQ2/3 Modulators
申请人:Kuehnert Sven
公开号:US20100105722A1
公开(公告)日:2010-04-29
Substituted tetrahydrothienopyridines corresponding to formula (1)
in which A
1
through A
3
and R
1
through R
12
have defined meanings, pharmaceutical compositions comprising such compounds, a process for preparing such compounds and the use of such compounds in treatment or inhibition of conditions mediated by the KCNQ 2/3 K
+
channel, e.g., pain.
We developed, for the first time, the cinchona-alkaloid-catalyzed enantiodivergent α-fluorination of β-keto diarylphosphine oxides, which resulted in two enantiomers bearing fluorine-containing quaternary stereocenters.