反应详情

A solution of {6-methoxy-5-[2-methoxy-4-(trifluoromethoxy)phenyl]pyrazin-2yl}[(4-methoxyphenyl)methyl]amine (870 mg, 2.0 mmol) in chloroform (10 mL) is cooled to 0 C and N-bromosuccinimide (356 mg, 2.0 mmol) is added in portions. After the addition, the mixture is further stirred for 1 hour while being allowed to warm to room temperature. The mixture is washed with saturated aqueous sodium bicarbonate, aqueous sodium chloride, dried (magnesium sulfate), filtered, and evaporated to give {3-bromo-6-methoxy-5-[2methoxy-4-(trifluoromethoxy)phenyl]pyrazin-2-yl} [(4-methoxyphenyl)methyl]amine (920 mg), a yellow solid.

1. additionis added in portions
2. additionAfter the addition
3. washThe mixture is washed with saturated aqueous sodium bicarbonate, aqueous sodium chloride
4. dry with materialdried (magnesium sulfate)
5. filtrationfiltered
6. customevaporated