反应详情

温度

50 °C

Palladium on carbon (5%, 0.80 g) was added to a solution of ethyl 3-(4-benzyloxyphenyl)-2-(phenylamino)propionate (3.94 g), which is the product of Reference example 55(a), in a mixture of ethanol (40 ml) and tetrahydrofuran (20 ml). The mixture was stirred under an atmosphere of hydrogen at 50° C. for 6 hours. The catalyst was removed by filtration and the filtrate was concentrated. The residue was purified via chromatography on a silica gel column using ethyl acetate/hexane=1/2 as the eluant to afford the title compound (2.95 g) as a syrup.

1. customThe catalyst was removed by filtration
2. concentrationthe filtrate was concentrated
3. customThe residue was purified via chromatography on a silica gel column