反应详情

To a mixture of 4-hydroxy-3-propylbenzonitrile (Example 33, 1.33 g, 8.28 mmol) and methyl [5-(3-bromopropoxy)-1H-indol-1-yl]acetate (Example 47, 2.70 g, 8.28 mmol) in DMF (50 mL, containing 1% water), was added cesium carbonate (5.39 g, 16.55 mmol). The mixture was stirred at rt for 24 h and then the solvent was evaporated under reduced pressure. The residue was suspended in ethyl acetate and filtered. The filtrate was concentrated and purified via silica gel column chromatography (0-10% EtOAc in hexanes) to give 787 mg (23%) of the product as a solid. This was used in later steps with no further purification.

1. customthe solvent was evaporated under reduced pressure
2. filtrationfiltered
3. concentrationThe filtrate was concentrated
4. custompurified via silica gel column chromatography (0-10% EtOAc in hexanes)