Chloromethyl Methyl Ether → HCID 25175790, compound

Participants

Reaction Steps

A mixture of 5-chloro-6-{[2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazole-3-carbonyl]-amino}-1H-indazole-7-carboxylic acid isopropylamide (1.00 g, 1.90 mmol), KOH (310 mgs, 5.70 mmol) and t-BuOK (6.4 mg, 0.02 mmol) in THF (5 mL) was treated dropwise with chloro-methoxy-methane (0.39 mL, 5.1 mmol). The resulting reaction mixture was stirred at ambient temperature for 18 h. AcOEt and water was added. The phases were separated. The aqueous layer was extracted with AcOEt. The organic layers were washed with water, combined, dried over MgSO4 and concentrated in vacuo. Purification of the residue by reverse phase HPLC affords the title product as a colorless solid. M.p. 180-182° C., LC/MS: 570/572 (M+H)+, 592/594 (M+Na)+.

Provenance & Evidence