反应详情

To a solution 2.2 g of dl-5-chloro-6-ethyl-4-(α-ethyl-4-hydroxybenzyl)aminopyrimidine sodium salt dissolved in 25 ml of dried pyridine were added 1.1 g of 3-bromopyridine and 1 g of cuprous chloride, and the mixture was refluxed under nitrogen atmosphere by heating and stirring for 8 hours. After completion of the reaction, the reaction product was poured into water and extracted with ethyl acetate. The extract was washed with diluted hydrochloric acid and water, dried over anhydrous sodium sulfate and the solvent was distilled off under reduced pressure. The oily product obtained was isolated by chromatography (Wako Gel C-200, trade name, eluted with toluene:ethyl acetate=4:1) to give 0.8 g of the desired product as colorless oily liquid.

1. temperaturethe mixture was refluxed under nitrogen atmosphere
2. temperatureby heating
3. customAfter completion of the reaction
4. extractionextracted with ethyl acetate
5. washThe extract was washed with diluted hydrochloric acid and water
6. dry with materialdried over anhydrous sodium sulfate
7. distillationthe solvent was distilled off under reduced pressure
8. customThe oily product obtained