反应详情

A mixture of 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-[1,4]diazepan-1-yl-phenyl)-amide hydrochloride (100 mg, 0.21 mmol), cis-cyclohexane-1,4-dicarboxylic acid monobenzyl ester (0.67 mg, 0.25 mmol), and triethyl amine (0.070 mL) in DMF (5 mL) was stirred for 5 minutes and PyBroP (116 mg, 0.25 mmol) was added. The mixture was stirred at room temperature and after 1.0 hr the reaction was concentrated to dryness. The residue was extracted with ethyl acetate and washed with saturated ammonium chloride (100 mL), water (50 mL), brine (100 mL) and dried with anhydrous sodium sulfate. The solvent was removed and the crude material was purified on a flash column chromatography eluted with ethyl acetate/hexanes to afford cis-4-(4-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-[1,4]diazepane-1-carbonyl)-cyclohexanecarboxylic acid benzyl ester (100 mg, 71% yield) as a white solid. LCMS for C37H37F3N4O5 calcd. (m/e) 674, observed 675 (M+H).

1. stirringThe mixture was stirred at room temperature and after 1.0 hr the reaction
2. concentrationwas concentrated to dryness
3. extractionThe residue was extracted with ethyl acetate
4. washwashed with saturated ammonium chloride (100 mL), water (50 mL), brine (100 mL)
5. dry with materialdried with anhydrous sodium sulfate
6. customThe solvent was removed
7. customthe crude material was purified on a flash column chromatography
8. washeluted with ethyl acetate/hexanes