HRID1792610
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
0.82 g ethyl 2-fluoro-4-[6-(1-trityl-1H-pyrazol-4-yl)-quinazolin-4-yl]benzoate (compound in Example 752) was dissolved in 30 mL solvent mixture of ethanol and water (2:1), then 0.11 g lithium hydroxide was added thereto, and the mixture was heated for 5 hours under reflux. The reaction solution was neutralized under ice-cooling. The solution was extracted with dichloromethane and recrystallized from ethanol/ether, to give 570 mg of the title compound as pale yellow crystals.
WORKUP
后处理
- temperaturethe mixture was heated for 5 hours
- temperatureunder reflux
- temperaturecooling
- extractionThe solution was extracted with dichloromethane
- customrecrystallized from ethanol/ether