反应详情

10% palladium-activated carbon (50 mg) was added to a mixed solution of 6-{(E)-2-cyclopentyl-1-[4-(cyclopropylsulfonyl)phenyl]ethenyl}-3-methylpyridin-2(1H)-one synthesized in Example 1-11 (50 mg) in tetrahydrofuran and methanol (2 mL, 1:1), and the mixture was stirred in a hydrogen gas stream at room temperature for three hours. The reaction solution was filtered through celite, and then the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform:methanol=1:1→0:1) to give the title compound as a colorless amorphous (33 mg, 60%).

1. filtrationThe reaction solution was filtered through celite
2. concentrationthe filtrate was concentrated under reduced pressure
3. customThe residue was purified by silica gel column chromatography (chloroform:methanol=1:1→0:1)