反应详情

温度

50 °C

A mixture of [2-(E)-cyclobutyl-1-(4-methanesulfonyl-phenyl)-vinyl]-5-fluoro-1H-pyrrolo[2,3-b]pyridine (prepared as in Example 46, 200 mg, 0.54 mmol) and 10% palladium on activated carbon (70 mg) in methanol (250 mL) was heated at 50° C. under hydrogen (50 psi) for 8 h. The mixture was cooled to room temperature. The catalyst was removed by filtration and washed with ethyl acetate. The filtrate was concentrated in vacuo. Purification using a Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water) afforded 2-[2-cyclobutyl-1-(4-methanesulfonyl-phenyl)-ethyl]-5-fluoro-1H-pyrrolo[2,3-b]pyridine (35 mg, 17.5%) as a light yellow solid: LC/MS m/e calcd for C20H21FN2O2S [M+H]+ 373.46, observed 372.8; 1H NMR (400 MHz, CD3OD) δ ppm 8.03 (t, J=2.1 Hz, 1H), 7.88-7.93 (m, J=8.3 Hz, 2H), 7.67-7.79 (m, 1H), 7.56-7.61 (m, J=8.3 Hz, 2H), 6.42 (s, 1H), 4.20 (t, J=7.7 Hz, 1H), 3.06-3.19 (m, 3H), 2.16-2.40 (m, 3H), 1.93-2.08 (m, 2H), 1.64-1.90 (m, 4H).

1. temperatureThe mixture was cooled to room temperature
2. customThe catalyst was removed by filtration
3. washwashed with ethyl acetate
4. concentrationThe filtrate was concentrated in vacuo
5. customPurification