反应详情

tert-Butyl 5-cyclopropyl-3-[(6-{[(1S)-1-(4-fluorophenyl)ethyl]amino}pyridin-2-yl-amino]-1H-pyrazole-1-carboxylate (Method 21; 146 mg) was dissolved in a solution of hydrogen chloride in ether (2.0 M, 2 ml, 4 mmol) and the reaction mixture was stirred at room temperature for 4 hours. The solvent was removed and semi-prep HPLC (Gilson) purification gave the title compound (37 mg, 25%). 1H NMR (CDCl3) δ 0.55 (m, 2H), 0.70 (m, 2H), 1.35 (m, 3H), 1.65 (m, 1H), 4.53 (m, 2H), 4.91 (br s, 1H), 6.10 (br s, 1H), 6.70 (m, 1H), 7.00 (m, 2H), 7.25 (m, 3H).

1. customThe solvent was removed
2. customsemi-prep HPLC (Gilson) purification