反应详情

To a solution of 5-(4-(trifluoromethyl)phenyl)-1,3,4-oxadiazol-2-amine (0.047 g, 0.207 mmol) in DMF (2 mL) was added potassium carbonate (0.052 g, 0.376 mmol) and 2-((2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)oxy)ethyl 4-methylbenzenesulfonate (0.068 g, 0.188 mmol) and the reaction stirred at room temperature for 15 h. The temperature was then increased to 60° C. for 15 h. After cooling to room temperature, the mixture was diluted with water (5 mL), extracted with EtOAC (20 mL), dried over sodium sulfate, and evaporated. The residue was purified by preparative HPLC on a X— Terra column (10×150 mm, 5 μm) with 0-100% AcCN in 10 mM aq. NH4OAc. Solvents were evaporated under vacuum to yield 6-(2-(5-(4-(trifluoromethyl)phenyl)-1,3,4-oxadiazol-2-ylamino)ethoxy)-3,4-dihydroquinolin-2(1H)-one (4.3 mg, 5.5%). 1H NMR: 400 MHz, DMSO-d6: δ 2.53 (dd, J=7.60, 8.40 Hz, 2H), 2.91 (t, J=8.00 Hz, 2H), 3.76 (t, J=5.20 Hz, 2H), 4.20 (t, J=5.20 Hz, 2H), 6.80-6.84 (m, 3H), 7.83 (d, J=8.40 Hz, 2H), 8.07 (d, J=8.00 Hz, 2H). LCMS: RT 1.79 min. LCMS (ES-API), m/z 419.0 (M+H).

1. temperatureThe temperature was then increased to 60° C. for 15 h
2. temperatureAfter cooling to room temperature
3. extractionextracted with EtOAC (20 mL)
4. dry with materialdried over sodium sulfate
5. customevaporated
6. customThe residue was purified by preparative HPLC on a X— Terra column (10×150 mm, 5 μm) with 0-100% AcCN in 10 mM aq. NH4OAc
7. customSolvents were evaporated under vacuum