反应详情

A mixture of 7-[(1-methyl-1H-imidazol-2-yl)methoxy]-5-[4-(methylsulfonyl)phenoxy]-1H-indole-2-carboxylic acid (940 mg), 1-[3-(dimethylamino)propyl-3-ethylcarbodiimide hydrochloride (817 mg), 1-hydroxybenzotriazole ammonium salt (648 mg) and N,N-dimethylformamide (20 mL) was stirred at room temperature for 14 hr. Water was added to the reaction solution, and the mixture was subjected to extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The obtained solid was washed with a mixed solvent of ethyl acetate-diethyl ether to give the title compound (640 mg, yield 68%) as a pale-yellow solid. MS 441 (MH+).

1. extractionthe mixture was subjected to extraction with ethyl acetate
2. washThe organic layer was washed with saturated brine
3. dry with materialdried over magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. washThe obtained solid was washed with a mixed solvent of ethyl acetate-diethyl ether