Dimethylformamide → HCID 74057840, compound

Participants

Reaction Steps

417 mg (1.00 mmol) of 3-difluoromethoxy-N-[2-(3-hydroxy-4-methoxyphenyl)ethyl]-2-(5,6,7,8-tetrahydronaphthalen-2-yl)acrylamide, 5 ml of anhydrous N,N-dimethylformamide, 74 mg (1.00 mmol) of 3-chloropropyne and 50 mg (1.25 mmol) of 60% sodium hydride were mixed and stirred at room temperature for 3 hours. Water was added to to the reaction mixture, which was followed by extracted with ethyl acetate, washed with 5% hydrochrolic acid, saturated aqueous sodium bicarbonate solution and saturated brine subsequently, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 162 mg of 3-difluoromethoxy-N-[2-{4-methoxy-3-(2-propynyloxy)phenyl}ethyl]-2-(5,6,7,8-tetrahydronaphthalen-2-yl)acrylamide (the present compound 1299).

Provenance & Evidence