反应详情

The product of Example 5A (150 mg, 0.46 mmol) in methanol (5 mL) was treated with Pd/C (Aldrich, wt. 10%, 20 mg) at ambient temperature for 30 minutes. The mixture was filtered and the filtrate was concentrated under reduced pressure to provide the title compound (89 mg, yield, 65%). 1H NMR (MeOH-d4, 300 MHz) δ 1.44-1.58 (m, 1H), 1.63-1.89 (m, 2H), 1.99-2.13 (m, 1H), 2.15-2.23 (m, 1H), 2.72-3.04 (m, 5H), 3.29-3.39 (m, 1H), 4.50-4.58 (m, 1H), 6.77 (dt, J=8.8, 2.5 Hz, 2H), 6.91 (dt, J=8.8, 2.4 Hz, 2H), 7.32 (dt, J=8.5, 2.5 Hz, 2H), 7.43 (dt,J=9.2, 2.8 Hz, 2H) ppm. MS (DCl/NH3) m/z 295 (M+H)+.

1. filtrationThe mixture was filtered
2. concentrationthe filtrate was concentrated under reduced pressure