Methanol → N1-(3-Fluoro-4-(2-(3-hydroxyazetidine-1-carbonyl)thieno[3,2-b]pyridin-7-yloxy)phenyl)-N3-(2-methoxyphenyl)malonamide

Participants

Reaction Steps

To a suspension of N1-(4-(2-(3-(tert-butyldimethylsilyloxy)azetidine-1-carbonyl)thieno[3,2-b]pyridin-7-yloxy)-3-fluorophenyl)-N3-(2-methoxyphenyl) malonamide 275 (179 mg, 0.268 mmol) in MeOH (18 mL) HCl (1N in dioxane, 0.54 mL, 0.54 mmol) was added dropwise and the mixture was stirred for 15 min at room temperature. The solvent was removed under reduced pressure, MeOH was added to the residue and concentrated, the residue was suspended in water and lyophilized affording 271 (104.6 mg, 0.18 mmol, 67% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ (ppm): 10.68 (s, 1H), 9.64 (s, 1H), 8.64 (d. J=5.5 Hz, 1H), 8.06 (dd, J=1.9 Hz, J=9 Hz, 1H), 7.94 (s, 1H), 7.89 (dd, J=12.9 Hz, J=2.4 Hz, 1H), 7.51 (t, J=8.8 Hz, 1H), 7.46 (dd, J=1.6 Hz, J=8.8 Hz, 1H), 7.11-7.04 (m, 2H), 6.92 (m, 1H), 6.84 (dd, J=5.5 Hz, J=1 HZ, 1H), 6.90 (m, 1H), 4.59 (m, 1H), 4.36-4.31 (m, 2H), 3.88-3.84 (m, 4H), 3.67 (s, 2H). MS (m/z): (M+1) 551.0 (100%).

Provenance & Evidence