反应详情

A mixture of Example 49A (0.175 g, 0.3 mmol) and 10% Pd/C (0.015 g) in MeOH (5 ml) and acetic acid (0.2 ml), was stirred overnight under a H2 atmosphere at room temperature. The mixture was filtered through a a pad of silica then concentrated under vacuum. The residue was purified by HPLC on a C18 column with 0-100% CH3CN/H2O/0.1% TFA to provide 0.095 g (69%) of the desired product. MS (ESI) m/e 482 (M+H)+. 1H NMR (DMSO-D6) δ ppm 8.55 (s, 1H), 8.42 (s, 1H), 8.15 (s, 1H), 7.82-7.91 (m, 3H), 7.65-7.78 (s, 3H) 7.42 (d, J=7.67 Hz 2H), 7.29-7.34 (m, 2H), 4.31 (d, J=7.06 Hz, 2H), 3.5-3.28 (m, 7H), 2.42 (s, 2H).

1. filtrationThe mixture was filtered through a a pad of silica
2. concentrationthen concentrated under vacuum
3. customThe residue was purified by HPLC on a C18 column with 0-100% CH3CN/H2O/0.1% TFA