HCID 59140152, Verbindung → 8-Fluoro-5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyridine-6-carboxylic acid (2-hydroxy-ethoxy)-amide

A solution of 8-fluoro-5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyridine-6-carboxylic acid (2-vinyloxy-ethoxy)-amide (200 mg, 0.39 mmol) in methanol (1 mL) was loaded onto an SCX-2 column. The column was washed with methanol (10 mL) then the product was then eluted with ammonia in methanol (20 mL, 2M), the appropriate fractions were concentrated in vacuo. The resultant residue was subjected to reverse phase preperative HPLC (10-90% acetonitrile/water 0.1% formic acid, Phenominex gemini PhC6, 5 micron, 250×20 mm). The resultant product was dissolved in ethyl acetate (5 mL) and washed with aqueous saturated sodium bicarbonate solution (10 mL). The aqueous fraction was extracted twice with ethyl acetate (2×10 mL) and the combined organics were washed with brine (20 mL), dried (MgSO4) and concentrated in vacuo to yield the title compound as a white solid (88 mg, 39%). LCMS (Method A): RT=7.71 min, [M+H]+=475. 1H NMR (DMSO-d6): 8.20 (1 H, s), 7.60 (1 H, s), 7.57 (1 H, dd, J=10.73, 1.96 Hz), 7.26 (1 H, dd, J=8.43, 1.82 Hz), 6.82 (1 H, d, J=11.14 Hz), 6.30 (1 H, t, J=8.71 Hz), 3.65 (2 H, t, J=4.77 Hz), 3.45 (2 H, t, J=4.68 Hz).