Sodium Carbonate Monohydrate → HCID 178480969, Verbindung

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a solution of cis-3-iodo-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (0.150 g, 0.340 mmol) in ethylene glycol dimethyl ether (3 mL) and water (1.5 mL) under nitrogen was added N2-[2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-1,3-benzoxazol-2-amine (0.151 g, 0.425 mmol), tetrakis(triphenylphosphine)palladium (0) (0.020 mg, 0.017 mmol), and sodium carbonate monohydrate (0.105 mg, 0.850 mmol). The solution was stirred at 83° C. for 19 h. The resulting yellow mixture was concentrated in vacuo to give a yellow oil. Purification by preparative RP-HPLC (25 to 100% CH3CN in 0.1 N aqueous ammonium acetate over 20 min at 21 mL/min using a 8 m Hypersil HS C18, 250×21 mm column, tr=5.7-8.1 min.) afforded cis-N2-(4-{4-amino-1-[4-(4-methylpiperazino)-cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}-2-fluorophenyl)-1,3-benzoxazol-2-amine as an off-white solid (0.046 g, 25%): 1H NMR (DMSO-d6, 400 MHz) δ 10.65 (s, 1H), 8.49 (m, 1H), 8.25 (s, 1H), 7.53 (d, 2H), 7.48 (d, 2H), 7.26 (t, 1H), 7.20 (t, 1H), 4.80 (m, 1H), 3.51-2.50 (m, 11H), 2.33-2.32 (m, 4H), 2.09-2.06 (m, 2H), 1.80-1.40 (m, 3H); RP-HPLC (25 to 100% CH3CN in 0.1 N aqueous ammonium acetate over 10 min at 1 mL/min using a Hypersil HS C18, 250×4.6 mm column) tr=6.95 min., 99%; m/z 542 (MH+).

Herkunft & Nachweise