反应详情

A solution of 5-({3-[4-(biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]propionyl}-methylamino)pentanoic acid (1.19 g, 2.46 mmol); (4-amino-2,5-dimethylphenyl)-methanol (372 mg, 2.46 mmol) and N,N-diisopropylethylamine (858 μL, 4.93 mmol) in DCM (18.5 mL) was stirred at room temperature for 30 min. N-(3-Dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride (708 mg, 3.69 mmol) was added and the resulting mixture was stirred at room temperature for 3 h. Saturated aqueous sodium bicarbonate solution (5 mL) was added and this mixture was extracted with DCM (2×2 mL). The combined organic layers were dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography (0-10% MeOH in DCM) to give the title compound (460 mg, 31% yield) as a yellow oil.

1. extractionthis mixture was extracted with DCM (2×2 mL)
2. dry with materialThe combined organic layers were dried over sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by silica gel flash chromatography (0-10% MeOH in DCM)