Water → HCID 86610737, compound

Participants

Reaction Steps

To a solution of 6-hydroxy-1-(R)-(2-bromoethyl)-3,4-dihydro-1H-isoquinoline-trifluoroacetamide (270 mg, 0.77 mmol) obtained in step (d) of Example 190 and potassium carbonate (268 mg, 1.94 mmol) in dimethylformamide (3 ml) was added dimethylcarbamyl chloride (0.2 ml, 1.55 mmol) gradually with stirring under cooling in an ice bath. Subsequently, the resulting mixture was stirred at 40° C., and after confirming the disappearance of the starting material by thin layer chromatography, water was added to the reaction mixture, and the resulting mixture was extracted with ethyl acetate. The extract was washed with saturated aqueous sodium chloride solution, dried over anhydrous sodium sulfate and evaporated in vacuo. The residue obtained was purified by chromatography on a silica gel column using a mixed solvent of hexane and ethyl acetate (80:20) as the eluent to afford the title compound (170 mg, yield: 52%) as a colorless oil.

Provenance & Evidence