Multi-step reaction with 5 steps
1: palladium diacetate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; caesium carbonate / 1,4-dioxane / 4 h / 150 °C / Microwave irradiation
2: sodium hydroxide; water / methanol / Reflux
3: N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 5 h / 80 °C
4: thionyl chloride / dichloromethane / 2.5 h / 20 °C
5: potassium carbonate / N,N-dimethyl-formamide / 2.5 h / 85 °C
With
thionyl chloride; water; palladium diacetate; potassium carbonate; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; sodium hydroxide;
In
1,4-dioxane; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/j.bmcl.2014.05.066