Methanesulfonic Acid → 2-{[7-Oxo-3-(2,4,6-trifluorobenzoyl)-1,7-dihydro-6H-pyrrolo[2,3-c]pyridin-6-yl]methyl}imidazo[1,2-a]pyridine-7-carboxamide

Participants

Reaction Conditions

Reaction Steps

The product from step B (430 mg, 0.884 mmol) was dissolved in methanesulfonic acid (2.0 mL) and heated to 95° C. in an oil bath for 25 min. After cooling in an ice-water bath, the reaction mixture was diluted with 2:3 MeCN—H2O (3 mL) and purified by reverse phase HPLC (C-18 column) to give the title compound (174 mg). LC/MS: m/z 467(M+H). 1H-NMR (d6-DMSO, 500 MHz): δ 5.46 (s, 2H), 7.01 (d, 1H), 7.33 (t, 2H), 7.58-7.59 (m, 2H), 7.61 (s, 1H), 7.79 (s, 1H), 7.91 (d, 1H) 8.12 (d, 1H), 8.33 (s, 1H), 8.72 (d, 1H), 13.12 (s, 1H).

Provenance & Evidence