反应详情

温度

50 °C

Sodium hydroxide (11.02 mL of a 2M solution, 22.04 mmol) was added to a yellow solution of methyl 6-[(1-methylethyl)sulfonyl]-3-[(3-methyl-4-oxo-1-piperidinyl)methyl]-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylate (1.24 g, 2.204 mmol) in methanol (11.02 mL) and tetrahydrofuran (11.02 mL). The mixture was heated to 50° C. for 20 h. The mixture was cooled to room temperature, and the solvent was removed under reduced pressure. The residue was diluted with water (5 mL), and the solid precipitate was collected by filtration, washed with water (2×1 mL), and dried in a vacuum oven at 40° C. to afford 6-[(1-methylethyl)sulfonyl]-3-[(3-methyl-4-oxo-1-piperidinyl)methyl]-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylic acid (0.95 g, 72% yield). 1H NMR (400 MHz, DMSO-d6) δ8.53 (d, J=1.76 Hz, 1H), 8.10-8.18 (m, 2H), 7.96-8.05 (m, 2H), 7.83 (d, J=7.81 Hz, 1H), 7.72 (t, J=7.68 Hz, 1H), 3.71 (s, 2H), 3.49 (dt, J=6.77, 13.41 Hz, 1H), 2.68-2.78 (m, 2H), 2.08-2.32 (m, 3H), 1.92-2.03 (m, 2H), 1.22 (s, 3H), 1.20 (s, 3H), 0.70 (d, J=6.55 Hz, 3H); MS (m/z) 549.2 (M+H+).

1. temperatureThe mixture was cooled to room temperature
2. customthe solvent was removed under reduced pressure
3. additionThe residue was diluted with water (5 mL)
4. filtrationthe solid precipitate was collected by filtration
5. washwashed with water (2×1 mL)
6. customdried in a vacuum oven at 40° C.