反应详情

A mixture of 2-(1-bromo-6-{[(2-ethyl-benzofuran-3-carbonyl)-amino]-methyl}-naphthalen-2-yloxy)-3-phenyl-propionic acid methyl ester (0.200 g, 0.341 mmol), prepared in the previous step, 1N NaOH (1.02 mL, 1.02 mmol), 10 mL of water and 100 mL of methanol was stirred under nitrogen at room temperature for 20 h (overnight). The reaction was acidified with 1N HCl until acidic by litmus paper. The methanol was removed under reduced pressure. The solid that precipitated and was collected by filtration and dried under reduced pressure to give the title compound (0.0576 g, 29%) as a white solid, mp 162-165° C.

1. customThe methanol was removed under reduced pressure
2. customThe solid that precipitated
3. filtrationwas collected by filtration
4. customdried under reduced pressure