反应详情

To a solution of (2S,3R,4R,5S,6S)-2-(acetoxymethyl)-6-(4-chloro-3-((5-(furan-2-yl)-1,3,4-thiadiazol-2-yl)methyl)phenyl)-tetrahydro-2H-pyran-3,4,5-triyl triacetate (187 mg, 0.31 mmol) from Step 3 in methanol (10 mL) was added sodium methoxide (25 wt % in methanol, 1.0 mL). The reaction mixture was stirred at ambient temperature for 2 h. Amberlite® IR120 hydrogen form was then added to neutralize the reaction mixture. The resin was filtered off and the filtrate was concentrated in vacuo. Purification by reverse phase preparative HPLC (Gilson®, SunFire™ Prep, 5 to 50% acetonitrile in water gradient) provided the title compound (78 mg, 0.18 mmol, 58%) as a white solid.

1. filtrationThe resin was filtered off
2. concentrationthe filtrate was concentrated in vacuo
3. customPurification by reverse phase preparative HPLC (Gilson®, SunFire™ Prep, 5 to 50% acetonitrile in water gradient)