反应详情

1.8 g (3.8 mmol) of 2-hydroxy-3-(2-(3,4-dimethoxyphenyl)ethoxy)-3,3-di(4-ethylphenyl)propionic acid were introduced into 20 ml of DMF, and 554 mg of NaH (50% suspension) were added. After the mixture had stirred for 15 minutes, 855 mg (4.2 mmol) of 4-methoxy-6-methyl-2-methylsulfonylpyrimidine were added, and the mixture was stirred at room temperature for 3 hours. Water was added to the mixture, which was then extracted with ether. The aqueous phase was acidified with 1 N aqueous HCl, extracted with ether and dried over magnesium sulfate. The solvent was distilled off and 540 mg (23%) of colorless powder were isolated after recrystallization from ether/n-hexane.

1. additionwere added
2. stirringthe mixture was stirred at room temperature for 3 hours
3. extractionwas then extracted with ether
4. extractionextracted with ether
5. dry with materialdried over magnesium sulfate
6. distillationThe solvent was distilled off