反应详情

To a solution of 4-benzyl-6-[2-cyclopropyl-5-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-benzyl]-3,4-dihydro-2H-benzo[1,4]oxazine (0.42 g, 0.4783 mmol) in THF (4.7 mL) was added 10% palladium on charcoal (80 mg), 0.1 mL conc. HCl followed by methanol (4.7 mL) and the mixture was stirred under hydrogen atmosphere for 18 h. The reaction mixture was filtered through a celite bed, washed with methanol and concentrated. The resulting residue was purified by preparative HPLC to furnish (2S,3R,4R,5S,6R)-2-[4-cyclopropyl-3-(3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethyl)-phenyl]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol (34 mg).

1. filtrationThe reaction mixture was filtered through a celite bed
2. washwashed with methanol
3. concentrationconcentrated
4. customThe resulting residue was purified by preparative HPLC