反应详情

To a solution of 2-(4-(4-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)acetic acid (0.5 g, 1.215 mmol) in MeOH (10 mL) stirred under nitrogen at 20° C. was added Pd/C (0.013 g, 0.122 mmol) in one charge. The reaction mixture was reacted with a H2 balloon at 20° C. for 12 h. The mixture was filtered, and the filtrate was concentrated in vacuo to give the crude 2-(4-(4-ethoxy-6-oxo-1,6-dihydropyridin-3-yl)-2-fluorophenyl)acetic acid (0.4 g, 1.373 mmol). TLC (DCM/MeOH=10:1, Rf=0.2): 1H NMR (400 MHz, DMSO-d6) δ 7.32-7.15 (m, 4H), 5.78 (s, 1H), 4.01-4.00 (m, 2H), 3.59 (s, 2H), 1.26-1.23 (m, 3H); ES-LCMS m/z 292 (M+H).

1. additioncharge
2. customThe reaction mixture was reacted with a H2 balloon at 20° C. for 12 h
3. filtrationThe mixture was filtered
4. concentrationthe filtrate was concentrated in vacuo