反应详情

A suspension of 1-{[(R)-5-(4-cyano-benzyl)-7-(3,5-dichloro-4-fluoro-phenyl)-5-methyl-6-oxo-6,7-dihydro-5H-imidazo[1,2-a]imidazole-3-carbonyl]-amino}-cyclopropanecarboxylic acid, (500 mg, 0.92 mmol), (R)-1-(5-bromo-pyridin-2-yl)-ethylamine dihydrochloride (303 mg, 1.11 mmol) and diisopropylethylamine (0.640 mL, 3.69 mmol) in 4 mL of DMF was stirred at room temperature for 10 min HATU (386 mg, 1.01 mmol) was added, and the clear yellow reaction mixture was stirred at room temperature for 3 h. The reaction mixture was partitioned between 75 mL of ethyl acetate and 25 mL of water. The organic phase was washed with 2×25 mL of 5% aqueous NaCl solution and 25 mL of brine, dried over Na2SO4, filtered, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel, eluting with 0-3% MeOH in CH2Cl2, to provide 653 mg (98%) of title compound as a yellow foam, m/z 726.4 [M+1]+.

1. additionwas added
2. customThe reaction mixture was partitioned between 75 mL of ethyl acetate and 25 mL of water
3. washThe organic phase was washed with 2×25 mL of 5% aqueous NaCl solution and 25 mL of brine
4. dry with materialdried over Na2SO4
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customThe residue was purified by flash chromatography on silica gel
8. washeluting with 0-3% MeOH in CH2Cl2