Synthesis of N-[2-[4-[5-(1H-indazol-5-ylamino)-4H-1,2,4-triazol-3-yl]phenoxy]ethyl]methanesulfonamide

Example 220

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A solution of tert-butyl N-[5-[4-[2-(methanesulfonamido)ethoxy]phenyl]-1-tetrahydropyran-2-yl-1,2,4-triazol-3-yl]-N-(1-tetrahydropyran-2-ylindazol-5-yl)carbamate (65 mg, 0.10 mmol) in hydrochloric acid (4 M in dioxane, 4.0 mL, 16.0 mmol) and IPA (2 mL) was stirred at r.t. overnight. The solvents were removed under reduced pressure and the residue purified by preparative HPLC to give N-[2-[4-[5-(1H-indazol-5-ylamino)-4H-1,2,4-triazol-3-yl]phenoxy]ethyl]methanesulfonamide (14 mg, 0.03 mmol, 36% yield) as a white solid. LC-MS (ES⁺, Method E): 5.43 min, m/z 414.0 [M+H]⁺. ¹H NMR (400 MHz, DMSO-d₆): δ 13.39 (br s, 1H), 12.80 (s, 1H), 9.15 (s, 1H), 8.10 (s, 1H), 7.94 (s, 1H), 7.92 (d, 2H), 7.42 (s, 2H), 7.32 (s, 1H), 7.10 (d, J=8.5 Hz, 2H), 4.11 (t, J=5.5 Hz, 2H), 3.37 (t, J=5.5 Hz, 2H), 2.97 (s, 3H).