(1S)-1,5-anhydro-2,3,4,6-tetra-O-benzyl-1-[2-(benzyloxy)-5-[4-[(1E)-4-[(2-hydroxy-1,1-dimethylethyl)amino]-4-oxobut-1-en-1-yl]benzyl]-4-methylphenyl]-D-glucitol → (1S)-1,5-anhydro-1-[2-hydroxy-5-[4-[4-[(2-hydroxy-1,1-dimethylethyl)amino]-4-oxobutyl]benzyl]-4-methylphenyl]-D-glucitol

Participants

Reaction Steps

To a methanol solution (1.2 mL) of (1S)-1,5-anhydro-2,3,4,6-tetra-O-benzyl-1-[2-(benzyloxy)-5-[4-[(1E)-4-[(2-hydroxy-1,1-dimethylethyl)amino]-4-oxobut-1-en-1-yl]benzyl]-4-methylphenyl]-D-glucitol (120 mg, 0.124 mmol) was added 10% palladium-activated carbon (22 mg), and the mixture was stirred overnight under a hydrogen atmosphere at room temperature. The reaction solution was filtered through celite, and evaporated under reduced pressure to obtain a residue. Thus obtained residue was purified with silica gel column chromatography (chloroform:methanol=20:1 to 5:1) to obtain the title compound (58 mg, 90%) as a colorless powder. NMR data and MS data of the compound are shown in Table 1.

Provenance & Evidence