反应详情

In 40 ml of acetone were suspended 0.3 g (1 mmol) of 4-nitrophenyl-α-D-glucopyranoside (manufactured by Tokyo Kasei Ind., Ltd.) as marketed, 0.85 g (3 mmol) of vinyl palmitate and 30 mg of Lipase B, and the suspension was reacted in a shaking apparatus at 25° C. for 1 day. After the enzyme was filtered off, the solvent was concentrated to afford a crude product in a white wax form, which was purified by silica gel chromatography (5% methanol-dichloromethane) to give 0.458 g of 4-nitrophenyl 6-O-palmitoyl-α-D-glucopyranoside in a white wax form. Yield 81%

1. filtrationAfter the enzyme was filtered off
2. concentrationthe solvent was concentrated
3. customto afford a crude product in a white wax form, which
4. customwas purified by silica gel chromatography (5% methanol-dichloromethane)