反应详情

A solution of 2-(4-(4-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)-N-(6-(1-hydroxy-2-methylpropan-2-yl)-5-(trifluoromethyl)pyridin-3-yl)acetamide (20 mg, 0.032 mmol) in TFA in DCM (5 mL, 3.72 mmol) was stirred at 25° C. After LCMS analysis showed the starting material was consumed, the solvent was removed in vacuo to give the crude product, which was purified by preparative HPLC (under neutral condition) to yield a white solid of 2-(4-(4-ethoxy-6-oxo-1,6-dihydropyridin-3-yl)-2-fluorophenyl)-N-(6-(1-hydroxy-2-methylpropan-2-yl)-5-(trifluoromethyl)pyridin-3-yl)acetamide (8.8 mg, 0.017 mmol, 54% yield): 1H NMR (400 MHz, CD3OD) δ 8.91 (s, 1H), 8.46 (d, J=2.0 Hz, 1H), 7.40-7.35 (m, 2H), 7.24-7.21 (m, 2H), 5.98 (s, 1H), 4.13-4.08 (m, 2H), 3.82 (s, 4H), 1.37 (t, J=7.0 Hz, 9H); ES-LCMS m/z: 508.2 (M+H).

1. customwas consumed
2. customthe solvent was removed in vacuo
3. customto give the crude product, which
4. customwas purified by preparative HPLC (under neutral condition)