反应详情

Intermediate 71A (0.15 g, 0.43 mmol), intermediate 84A (0.098 g, 0.64 mmol) and TEA (0.238 mL, 1.72 mmol) were mixed in dichloromethane (4 mL). The mixture was stirred at RT for 30 min and then sodium triacetoxyhydroborate (0.182 g, 0.86 mmol) was added and the mixture was stirred at RT overnight. Aqueous NaHCO3 (sat., 4 mL) and dichloromethane (4 mL) were added and the mixture was filtered through a phase separator and the solvent was removed by evaporation. The product was purified by preparative reverse-phase HPLC at pH 10 to give 21 mg (11%). 1H NMR (600 MHz, DMSO) δ 1.00 (s, 3H), 1.3-1.39 (m, 1H), 1.57-1.64 (m, 1H), 2.05 (d, 1H), 2.41-2.48 (m, 2H), 3.14-3.24 (m, 2H), 3.43-3.51 (m, 2H), 4.07-4.14 (m, 1H), 4.54-4.73 (m, 3H), 5.07-5.19 (m, 2H), 6.85 (d, 2H), 7.25 (d, 2H), 7.63-7.73 (m, 3H), 8.09 (d, 2H), LC purity: 94%.

1. stirringthe mixture was stirred at RT overnight
2. filtrationthe mixture was filtered through a phase separator
3. customthe solvent was removed by evaporation
4. customThe product was purified by preparative reverse-phase HPLC at pH 10
5. customto give 21 mg (11%)