反应详情

To intermediate 38 (0.46 g, 1.1 mmol) in dry DMF (20 mL) was added 1-(phenylcarbamoyl)cyclopropanecarboxylic acid (40) (0.46 g, 2.2 mmol) [U.S. 2007/0004675 A1], DIPEA (0.98 mL, 5.6 mmol) and HATU (1.07 g, 2.81 mmol) and the mixture was stirred at r.t. for 18 h. The mixture was then partitioned between ethyl acetate and water; the organic phase was collected, washed with water, 1M NaOH, saturated NH4Cl, and brine, dried (anhydrous MgSO4), filtered and concentrated. Silica gel chromatography (2% methanol in ethyl acetate) afforded intermediate 41 (0.23 g, 34% yield). 1H NMR (400 MHz, DMSO-d6) δ (ppm): 10.37 (s, 1H), 9.98 (s, 1H), 8.68 (s, 1H), 8.53 (d, J=5.3 Hz, 1H), 8.40 (s, 1H), 8.31 (d, J=8.2 Hz, 1H), 7.97 (dd, J=8.2, 2.0 Hz, 1H). 7.90 (dd, J=13.1, 2.0 Hz, 1H), 7.62 (d, J=7.6 Hz, 2H), 7.53-7.46 (m, 2H), 7.30 (t, J=7.4 Hz, 2H), 7.06 (t, J=7.4 Hz, 1H), 6.66 (d, J=5.3 Hz, 1H), 5.88 (s, 1H), 4.11-3.97 (m, 4H), 1.47 (br s, 4H). MS (m/z): 597.2 (M+H).

1. customThe mixture was then partitioned between ethyl acetate and water
2. customthe organic phase was collected
3. washwashed with water, 1M NaOH, saturated NH4Cl, and brine
4. dry with materialdried (anhydrous MgSO4)
5. filtrationfiltered
6. concentrationconcentrated