反应详情

0.107 g of sodium hydroxide in 1.36 ml of water and 0.51 ml of tetrahydrofuran are cooled to 0° C. 0.52 g of 2-amino-2-adamantanecarboxylic acid is added in a single portion, and 0.53 g of 1-(1-naphthyl)-5-(2,6-dimethoxyphenyl)-3-pyrazolecarbonyl chloride, dissolved in 3 ml of tetrahydrofuran, is then added dropwise. The mixture is left for 10 minutes, and the same amount of the above acid chloride, in 3 ml of tetrahydrofuran, is added again; simultaneously, 1.32 ml of 2N sodium hydroxide are added. The reaction mixture is left for 4 days at room temperature; successively, ice-cold water is added and concentrated hydrochloric acid is added to pH 1, and the precipitate is filtered off. The crystals are washed with diisopropyl ether.

1. additionis then added dropwise
2. waitThe reaction mixture is left for 4 days at room temperature
3. additionsuccessively, ice-cold water is added
4. filtrationthe precipitate is filtered off
5. washThe crystals are washed with diisopropyl ether