Hydrochloric Acid → 5-Amino-2-(2,6-difluorophenyl)-N-(5-(3,3-difluoropiperidin-1-yl)-1-methyl-1H-pyrazol-4-yl)thiazole-4-carboxamide

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Reaction Steps

To a solution of tert-butyl 2-(2,6-difluorophenyl)-4-(5-(3,3-difluoropiperidin-1-yl)-1-methyl-1H-pyrazol-4-ylcarbamoyl)thiazol-5-ylcarbamate (57 mg, 0.1 mmol) in MeOH (2 mL) was added HCl in 1,4-dioxane (4 M, 5 mL). After stirring at room temperature for 18 hr the mixture was concentrated under reduced pressure. Purification via preparative HPLC gave 287 as a white solid (29 mg, 63%). 1H NMR (400 MHz, CDCl3) δ 8.40 (s, 1H), 7.65 (s, 1H), 7.37-7.28 (m, 1H), 7.06-6.99 (m, 2H), 6.13 (s, 2H), 3.75 (s, 3H), 3.32 (t, J=11.0 Hz, 2H), 3.17-3.12 (m, 2H), 2.08-1.95 (m, 2H), 1.92-1.84 (m, 2H). LCMS (ES+) m/z 455.0 (M+1).

Provenance & Evidence