Dimethylacetamide → HCID 58071932, compound

Participants

Reaction Conditions

Reaction Steps

100 mg Trifluoromethanesulfonic acid 7-(3,4-dimethoxy-phenyl)-[1,6]-naphthyridine-5-yl ester (6.2) was placed in 2 mL dimethylacetamide at ambient temperature before 120 mg 5-amino-1H-pyridine-2-one (2.31) was added. The reaction was heated to 70° C. overnight and then cooled to ambient temperature. After this time, additional 14.9 mg 5-amino-1H-pyridin-2-one (2.31) was added and the reaction was heated to 70° C. for 24 h and then 100° C. for a further 24 h. The solvent was removed under reduced pressure and the crude material was purified twice by silica gel chromatography (ethyl acetate/methanol) and then by preparative chromatography. Finally it was free-based using a SCX column to give the title compound.

Provenance & Evidence