Boron tribromide → 3-[1-(5-Fluoro-2-hydroxyphenyl)cycloprop-1-yl]-1-(2-methylquinolin-5-ylamino)-2-(trifluoromethyl)propan-2-ol

Participants

Reaction Steps

Analogously to Example 38, 395 mg (0.88 mmol) of 3-[1-(5-fluoro-2-methoxyphenyl)cycloprop-1-yl]-1-(2-methylquinolin-5-ylamino)-2-(trifluoromethyl)propan-2-ol is reacted with 4.30 ml (4.3 mmol) of a 1 M boron tribromide solution in 8.0 ml of dichloromethane. After one hour at 0° C., the reaction is halted. The subsequent recrystallization from ethyl acetate, acetone and methanol yields 257 mg (67% of theory) of the product.

Provenance & Evidence