Water → 6-[4-[4-[2-(1H-pyrazol-1-yl)ethoxy]phenyl]piperazin-1-yl]-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine

Participants

Reaction Conditions

Reaction Steps

Sodium hydride (60% dispersion in oil, 16.97 mg, 0.42 mmol) was added to 1H-pyrazole (28.9 mg, 0.42 mmol) in DMF (2 mL) at 20° C. under nitrogen. The resulting suspension was stirred at 20° C. for 20 minutes. 6-[4-[4-(2-Bromoethoxy)phenyl]piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine (100 mg, 0.21 mmol) was added and the reaction stirred at 20° C. for 1 hour. Water (25 mL) was then added and the resulting precipitate filtered off, washed with ether and dried overnight under vacuum at 50° C. to give 6-[4-[4-[2-(1H-pyrazol-1-yl)ethoxy]phenyl]piperazin-1-yl]-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine (66.0 mg, 68%) as a pale yellow solid.

Provenance & Evidence