Methyl 2-(2-(benzyloxy)-5-(2-(diethylamino)ethoxy)benzamido)-4-phenylbenzoate → Methyl 2-(5-(2-(diethylamino)ethoxy)-2-hydroxybenzamido)-4-phenylbenzoate

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Reaction Steps

To a solution mixture of the obtained methyl 2-(2-(benzyloxy)-5-(2-(diethylamino)ethoxy)benzamido)-4-phenylbenzoate (0.15 g) in methanol (3.0 mL) and ethyl acetate (3.0 mL), 10% palladium-carbon (0.030 g) was added, followed by stirring under a hydrogen atmosphere at room temperature for 3 hours. The insoluble substance was removed by filtration, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography [eluent: 100-96% chloroform/methanol] to obtain 0.087 g of methyl 2-(5-(2-(diethylamino)ethoxy)-2-hydroxybenzamido)-4-phenylbenzoate as a white solid.

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