Sodium Azide → HCID 178440303, compound

Participants

Reaction Conditions

Reaction Steps

A 50 mL round-bottomed flask equipped with a condenser outfitted with a nitrogen inlet was charged with 6-((2,4-difluorophenyl)ethynyl)-3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazine (0.500 g, 1.67 mmol, Preparation #J.1) in DMA (15 mL) to give a yellow solution. Sodium azide (0.327 g, 5.03 mmol) was added in one portion. The reaction mixture was heated at about 80° C. for about 16 h. The reaction mixture was partitioned between EtOAc and water. The layers were separated and the organic layer was washed with brine, dried over MgSO4, filtered, and concentrated in vacuo. One-half of the aqueous mixture was purified via RP-HPLC (Table 1, Method f) to provide the title compound after lyophilization (0.080 g, 14%): LC/MS (Table 1, Method b) Rt=1.8 min; MS m/z: 342.2 (M+H)+.

Provenance & Evidence