反应详情

Synthesized from N-ethyl-4-hydroxy-N-[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]benzamide and ethyl chloroacetate according to an analogous synthetic method to Preparation Example 40, to a solution of the resulting {4-{ethyl[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]carbamoyl}phenoxy}acetic acid ethyl ester (275 mg) in tetrahydrofuran (5 ml) was added an aqueous solution of 1N sodium hydroxide (5 ml) on an ice bath. The solution was stirred for 1.5 hours while warming to room temperature, then the reaction solution was acidified with 2N hydrochloric acid on the ice bath. Water was added thereto, the solution was extracted with ethyl acetate, then sequentially washed with water and brine, dried over anhydrous magnesium sulfate, then the solvent was evaporated in vacuo to provide the title compound (246 mg).

1. extractionthe solution was extracted with ethyl acetate
2. washsequentially washed with water and brine
3. dry with materialdried over anhydrous magnesium sulfate
4. customthe solvent was evaporated in vacuo