HCID 117697932, compound → HCID 117698128, compound

Participants

Reaction Steps

To a mixture of compound 116g (1.02 g, 4 mmol, 1.0 eq) in DCM (20 mL) was added DMP (3.4 g, 8 mmol, 2.0 eq) slowly at 0° C., then the mixture was stirred at room temperature for 16 h. The reaction mixture was quenched with water, the solid was filtered off, the filtrate was diluted with DCM (100 mL), washed with NaHCO3 (100 mL) three times and brine (100 mL). The organic layer was dried over Na2SO4 and concentrated. The residue was purified by silica gel (EA/PE=1:4) to give 8-benzyl-6,6-difluoro-8-azabicyclo[3.2.1]octan-3-one 116h as a colorless oil. 0.5 g. MS: calc'd (MH+) 252, measured (MH+) 2520.

Provenance & Evidence