Substituted heterocycles, their use as medicament, and pharmaceutical preparations comprising them
申请人:BRENDEL Joachim
公开号:US20080188477A1
公开(公告)日:2008-08-07
The invention relates to compounds of formula I
in which R1, R2, R3, R4, R5, R6 and X have the meanings stated in the claims. The compounds are particularly suitable as antiarrhythmic active ingredients, in particular for the treatment and prophylaxis of atrial arrhythmias, for example atrial fibrillation (AF) or atrial flutter.
direct C3 trifluoromethylation of 2-pyridones including unprotected derivatives by an electrochemical approach using the readily available Langlois reagent as the CF3 source in the absence of electrolytes. The trifluoromethylationunder transition metal- and oxidant-free conditions occurred site-selectively to give the desired products in moderate to good yields under ambient conditions. Interestingly