4-((2S,3R)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-4-oxo-1-{4-[(trimethylsilyl)ethynyl]phenyl}azetidin-2-yl)phenyl methyl beta-D-glucopyranosiduronate → 4-{(2S,3R)-1-(4-ethynylphenyl)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-4-oxoazetidin-2-yl}phenyl beta-D-glucopyranosiduronic acid

Participants

Reaction Steps

A solution of 8a in methanol/water/triethylamine (0.25 mL:1.10 mL:0.40 mL) was stirred at room temperature for approximately 6 h. The volatiles were evaporated in vacuo and the crude residue purified by preparative reversed phase high performance liquid chromatography on YMC Pack Pro C18 phase (gradient elution; 10-65% acetonitrile/water as eluent, 0.1% TFA modifier) to give the title compound (8b); m/z (ES) 574 (M-OH)+, 398; HRMS (ES) m/z calc'd for C32H31FNO9 (MH+) 592.1983, found 592.1985.

Provenance & Evidence