反应详情

Into a 50-mL round-bottom flask, was placed a solution of tert-butyl 3-(3-((2-(4-((3-(trifluoromethyl)benzyl)carbamoyl)pyridin-2-yl)-4-(2,2,2-trifluoroethoxy)phenyl)-carbamoyl)benzylthio)propanoate (200 mg, 0.27 mmol, 1.00 equiv) in dichloromethane (5 mL), and trifluoroacetic acid (2 mL). The resulting solution was stirred overnight at room temperature. The reaction progress was monitored by LCMS. The resulting mixture was concentrated under vacuum. The crude product (200 mg) was purified by reverse phase HPLC eluting with a water/CH3CN gradient containing 0.05% TFA. The product was obtained as 68 mg (37%) of a light yellow solid. 1H-NMR (300 MHz, DMSO-d6, ppm): δ 12.61 (s, 1H), 9.57-9.54 (m, 1H), 8.99-8.98 (m, 1H), 8.49-8.41 (m, 2H), 7.89-7.79 (m, 10H), 7.30-7.26 (m, 1H), 4.92-4.84 (dd, J=18 Hz, 9 Hz, 2H), 4.65-4.63 (d, J=5.4 Hz, 2H), 3.89 (s, 2H), 2.63-2.59 (m, 4H). MS (ES, m/z): 692 [M+H]+.

1. customInto a 50-mL round-bottom flask, was placed
2. concentrationThe resulting mixture was concentrated under vacuum
3. customThe crude product (200 mg) was purified by reverse phase HPLC
4. washeluting with a water/CH3CN gradient
5. additioncontaining 0.05% TFA