Hydrochloric Acid → HCID 136351057, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-{4-[5-(3,5-dichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-2-methyl-phenyl}-3-methyl-butan-1-one (i.e. the product of Step 2, 228 mg) in methanol (14.3 mL) was added hydroxylamine hydrochloride (38 mg) and a catalytic amount of concentrated hydrochloric acid. The mixture was stirred at 70° C. for 4 h and concentrated in vacuum. Water was added and the mixture was extracted with ethyl acetate. Combined organic layers were dried (Na2SO4) and evaporated. Flash chromatography of the residue on silica gel obtained the title compound (94 mg, 40%).

Provenance & Evidence