Potassium Phosphate, Tribasic → 6-(2-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-6-methylphenyl)-3-morpholinoquinolin-2-amine

참여 물질

반응 조건

반응 단계

A mixture of 3-(2-bromo-3-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine (0.32 g, 1.111 mmol), 3-morpholino-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinolin-2-amine (0.17 g, 0.479 mmol, prepared as in Example 2, Step 1-2), 2-(dicyclohexylphosphino)-2′,4′,6′,-tri-1-propyl-1,1′-biphenyl (0.046 g, 0.096 mmol), potassium phosphate, anhydrous (0.198 mL, 2.393 mmol), and Pd2(dba)3 (0.044 g, 0.048 mmol) was purged with N2 followed by the addition of degassed dioxane (2 mL) and water (1.0 mL). The resulting mixture was heated in microwave at 140° C. for 12 min. The reaction was filtered, concentrated, and the resulting crude material was chromatographed on silica gel using gradient 2:1 hexanes/EtOAc and 0-5% 2M NH3 in MeOH/DCM to afford a light yellow solid. It was repurified by HPLC to afford 6-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)-6-methylphenyl)-3-morpholinoquinolin-2-amine as a white solid. MS (ESI, pos. ion) m/z: 437 (M+1).

출처 및 근거