反应详情

温度

0 °C

A stirred mixture of 4-[5-(2-amino-ethyl)-2-(methyl)-imidazol-1-ylmethyl]-2-fluoro-benzonitrile dihydrochloride as prepared in Example 10, Step A (2.00 g, 6.038 mmol), 5-hydroxy-2-iodobenzoic acid (1.594 g, 6.038 mmol), 1-Hydroxybenzotriazole hydrate (816 mg, 6.038 mmol), and triethylamine (2.52 mL, 18.114 mmol) in dry DMF (12.0 mL) was cooled to 0° C., and EDC (1.158 g, 6.038 mmol) was added. After stirring at 0° C. for 15 minutes, the reaction mixture was stirred at ambient temperature overnight, then poured into water and extracted with EtOAc. The organic layer was dried (MgSO4), filtered, and concentrated under reduced pressure. The residue was preabsorbed onto silica gel and purified by flash chromatography eluting with a gradient of 6-9% MeOH/CH2Cl2 to give the titled product.

1. stirringthe reaction mixture was stirred at ambient temperature overnight
2. extractionextracted with EtOAc
3. dry with materialThe organic layer was dried (MgSO4)
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe residue was preabsorbed onto silica gel
7. custompurified by flash chromatography
8. washeluting with a gradient of 6-9% MeOH/CH2Cl2