反应详情

温度

100 °C

To a solution of [2-(2,5-dichloro-phenoxy)-pyridin-3-yl]-(3,4-dihydro-2H-quinoxalin-1-yl)-methanone (60 mg, 0.15 mmol, 1.0 equiv; Example 122) in anhydrous DMF (0.5 mL) was added N-ethyldiisopropylamine (96 mg, 129 μL, 0.75 mmol, 5.0 equiv; [CAS RN 7087-68-5]) and ethyl bromoacetate (55.1 mg, 37 μL, 0.33 mmol, 2.2 equiv; [CAS RN 105-36-2]) and the reaction mixture heated by microwave irradiation to 100° C. for 2 h. Removal of the solvent under reduced pressure and purification by preparative HPLC on reversed phase (Xterra® PrepMSC 18, 5 μM, 19×50 mm column equipped with a Gilson Liquid Handler 215 autosampler, two Rainin Dynamax® SD-300 pumps, a Sedex ELSD 75 lightscatter and a Dionex UVD 340S UV detector) eluting with a gradient of acetonitrile/water provided 42.7 mg (62%) of the title compound as a light yellow powder. MS (ISP): 486.1 [M+H]+.

1. customRemoval of the solvent
2. customunder reduced pressure and purification by preparative HPLC on reversed phase (Xterra® PrepMSC 18, 5 μM, 19×50 mm column
3. customequipped with a Gilson Liquid Handler 215 autosampler, two Rainin Dynamax® SD-300 pumps
4. washa Sedex ELSD 75 lightscatter and a Dionex UVD 340S UV detector) eluting with a gradient of acetonitrile/water