反应详情

A mixture of 3.0 g (0.01 mole) of 5-[7-(4-cyanophenoxy)heptyl]-3-methylisoxazole (Example 5), 20 ml of 20% aqueous hydrochloric acid and 20 ml of glacial acetic acid was heated at reflux for 19 hours. The reaction mixture was cooled, 20 ml of water added, and the solid product collected by filtration to give 3.0 g of 5-[7-(4-carboxyphenoxy)heptyl]-3-methylisoxazole as a colorless solid, m.p. 129°-130° C.; MIC vs. rhinovirus Type 2 in vitro=10 μg/ml.

1. temperaturewas heated
2. temperatureat reflux for 19 hours
3. temperatureThe reaction mixture was cooled
4. filtrationthe solid product collected by filtration