Benzyl Alcohol → HCID 23587938, compound

Participants

Reaction Steps

1-Butyl-2-oxo-1,2,5,6,7,8-hexahydroquinoline-3-carboxylic acid (4-002-01) (100 mg, 0.38 mmol) was dissolved in toluene (5 mL), and to the reaction mixture were added thionyl chloride (57 μL, 0.76 mmol) and catalytic amount of DMF, and the reaction mixture was reacted at 75° C. for 30 min. The reaction mixture was concentrated under reduced pressure, and the residue was dissolved in acetone (5 mL), and then to the reaction mixture was added an aqueous solution of sodium azide (29 mg, 0.42 mmol) (0.5 mL), and the reaction mixture was stirred at room temperature for 15 min. To the reaction mixture was added water (5 mL), the reaction mixture was extracted with ethyl acetate (10 mL), washed with brine (5 mL), dried over anhydrous magnesium sulfate, and evaporated under reduced pressure. The residue was dissolved in toluene (5 mL), and the reaction mixture was reacted at 120° C. for 30 min, and then benzyl alcohol (46 μL, 0.44 mmol) was added to the reaction mixture, and the reaction mixture was stirred at 120° C. for 2 h. The reaction mixture was purified by silica gel column chromatography (toluene/ethyl acetate) to give (1-butyl-2-oxo-1,2,5,6,7,8-hexahydroquinolin-3-yl)carbamic acid benzyl ester (6-007) (90 mg, 63%) as a white foamy substance.

Provenance & Evidence