反应详情

温度

85 °C

A dried pressure tube was consecutively charged with [bis-(4-methoxy-phenyl)-phenyl-methyl]-{(R)-5-[5-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)-2-fluoro-phenyl]-6,6-difluoro-5,7,7-trimethyl-2,5,6,7-tetrahydro-[1,4]oxazepin-3-yl}-amine (intermediate B10.1) (100 mg, 127 μmol), tetrahydrofuran (3 ml), 2,6-dichlorobenzo[d]oxazole (31.6 mg, 165 μmol), cesium carbonate (165 mg, 507 μmol) and water (1.5 ml). The tube was flushed with argon, thereafter [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane complex (11 mg, 12.7 μmol) was added, the tube was sealed and the reaction mixture heated at 85° C. for 64 hours. For the workup, the reaction mixture was evaporated at reduced pressure and the residue directly purified by chromatography on silica gel using a gradient of heptane/ethyl acetate=100:0 to 80:20 as the eluent. The [bis-(4-methoxy-phenyl)-phenyl-methyl]-{(R)-5-[5-(6-chloro-benzo oxazol-2-yl)-2-fluoro-phenyl]-6,6-difluoro-5,7,7-trimethyl-2,5,6,7-tetrahydro-[1,4]oxazepin-3-yl}-amine (41 mg, 44% yield) was obtained as a white solid. MS (ISP): m/z=740.4 [M+H]+ and 742.3 [M+2+H]+.

1. customThe tube was flushed with argon
2. addition[1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane complex (11 mg, 12.7 μmol) was added
3. customthe tube was sealed
4. customFor the workup, the reaction mixture was evaporated at reduced pressure
5. customthe residue directly purified by chromatography on silica gel using a gradient of heptane/ethyl acetate=100:0 to 80:20 as the eluent