Sodium Hydroxide → 3-(beta-D-glucopyranosyloxy)-5-methyl-4-[(4-cyclopropylphenyl)methyl]-1H-pyrazole

Beteiligte Stoffe

Reaktionsschritte

To a solution of 5-methyl-4-[(4-cyclopropylphenyl)methyl]-3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-1H-pyrazole (0.14 g) in ethanol (8.4 mL) was added 2 mol/L aqueous sodium hydroxide solution (0.63 mL), and the mixture was stirred at room temperature for 30 minutes. The solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: dichloromethane/methanol=6/1) to give 3-(β-D-glucopyranosyloxy)-5-methyl-4-[(4-cyclopropylphenyl)methyl]-1H-pyrazole (0.087 g).

Herkunft & Nachweise