Toluene → (R)-N-(2-(1-azidopropan-2-yl)-6-methyl-1-oxo-1,2-dihydroisoquinolin-5-yl)-2-(3-fluoro-4-(trifluoromethyl)phenyl)acetamide

Participants

Reaction Conditions

Reaction Steps

A solution of (R)-2-(3-fluoro-4-(trifluoromethyl)phenyl)-N-(2-(1-hydroxypropan-2-yl)-6-methyl-1-oxo-1,2-dihydroisoquinolin-5-yl)acetamide (0.5 g, 0.001 mol) in methylene chloride (20 mL, 0.3 mol) and toluene (10 mL, 0.09 mol) was cooled to 0° C. and treated with diphenylphosphonic azide (600 mg, 0.002 mol), followed by 1,8-diazabicyclo[5.4.0]undec-7-ene (0.3 g, 0.002 mol) under nitrogen. The mixture was stirred at 0° C. for 2 h then allowed to warm to room temperature and was stirred overnight. The mixture was concentrated and the residue was treated with water (50 mL) and ethyl acetate (100 mL). The organic layer was separated, washed with brine, dried and evaporated. The residue was purified via flash chromatography to afford the desired product as a clear oil (0.48 g, yield 90%).

Provenance & Evidence