反应详情

To a solution of 10-[(2-methyl-2′-trifluoromethyl-[1,1′-biphenyl]-4-yl)carbonyl]-10,11-dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-3-carboxylic acid (2,3-dihydroxypropyl)-methyl-amide of Example 2 (0.50 g, 0.87 mmol) in dichloromethane (17 mL) at 0° C. was added N,N-diisopropylethyl amine (0.30 mL, 1.72 mmol) followed by 1,1′-carbonyldiimidazole (0.14 g, 0.87 mmol). The reaction was allowed to warm to room temperature while stirring overnight then concentrated in vacuo to give a white solid. The residue was partitioned between dichloromethane and water. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to give a white foam. Purification by flash chromatography using a solvent system of 80% ethyl acetate in hexane provided the title product, which was redissolved in dichloromethane and evaporated to dryness in vacuo to a white foam (0.48 g).

1. concentrationthen concentrated in vacuo
2. customto give a white solid
3. customThe residue was partitioned between dichloromethane and water
4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customto give a white foam
8. customPurification by flash chromatography