Acetyl chloride → [(2R,3R,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(2,2-difluoro-ethoxy)phenyl]methyl]phenyl]-6-methoxy-tetrahydropyran-2-yl]methanol

Participants

Reaction Steps

[[(2R,3R,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(2,2-difluoroethoxy)phenyl]methyl]phenyl]-6-methoxy-tetrahydropyran-2-yl]methoxy]tert-butyl-dimethyl-silane 12g (4.10 g, 4.78 mmol) was dissolved in 30 mL methanol, followed by addition of acetyl chloride (51 μL, 0.72 mmol). The reaction mixture was stirred for 1 hour. Thereafter, the reaction mixture was concentrated under reduced pressure and the resulting residue was purified by column chromatography to obtain the title compound [(2R,3R,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(2,2-difluoro-ethoxy)phenyl]methyl]phenyl]-6-methoxy-tetrahydropyran-2-yl]methanol 12h (1.23 g, white grease), yield: 34.6%.

Provenance & Evidence