反应详情

To a 50 mL pressure bottle was added a mixture of Example 85 (31.8 mg, 0.100 mmol), 5% palladium on carbon, wet (7.95 mg, 0.075 mmol) and methanol (10 mL). This was stirred for 5 hours under an atmosphere of hydrogen (30 psi) at room temperature. The reaction was complete as indicated by LC/MS. The mixture was filtered through a nylon membrane, concentrated, and purified by silica gel chromatography eluting with a gradient of methanol in dichloromethane (0-20%) to give the title compound. 1H NMR (300 MHz, DMSO-d6) δ ppm 7.90 (t, J=3.6, 1H), 7.71 (d, J=1.9, 1H), 7.32-7.12 (m, 6H), 7.06 (d, J=7.8, 1H), 3.27-3.13 (m, 2H), 3.07 (dt, J=9.2, 18.4, 2H), 2.92-2.82 (m, 5H), 2.65-2.56 (m, 2H), 2.35 (d, J=3.9, 3H), 2.20-2.06 (m, 1H); MS (ESI+) m/z 321.0 [M+H]+.

1. filtrationThe mixture was filtered through a nylon membrane
2. concentrationconcentrated
3. custompurified by silica gel chromatography
4. washeluting with a gradient of methanol in dichloromethane (0-20%)