反应详情

温度

100 °C

A mixture of N-cyclopropyl-N-[1-(2-hydroxy-2-methyl-propyl)-piperidin-4-yl]-4-oxazol-5-yl-benzamide (80 mg), methanesulfonic acid (1-trifluoromethyl-cyclopropyl)methyl ester (269 mg), K2CO3 (81 mg), and potassium iodide (38 mg) in N-methyl-2-pyrrolidone (3 mL) is stirred at 100° C. for two days. After cooling to room temperature, ethyl acetate and water are added to the mixture. The organic phase is separated, dried over MgSO4 and concentrated in vacuo. The residue is chromatographed on silica gel [dichloromethane/7 M ammonia in methanol 9:1→7:3] and the crude product is purified by preparative HPLC to give the title compound. LC (method 3): tR=1.22 min; Mass spectrum (ESI+): m/z=434 [M+H]+.

1. temperatureAfter cooling to room temperature
2. customThe organic phase is separated
3. dry with materialdried over MgSO4
4. concentrationconcentrated in vacuo
5. customThe residue is chromatographed on silica gel [dichloromethane/7 M ammonia in methanol 9:1→7:3]
6. customthe crude product is purified by preparative HPLC