反应详情

(4R)-4-((R)-1-(tert-butoxy)ethyl)-3-(2-((1-(5-(4-chlorophenyl)oxazol-2-yl)ethyl)amino)-5-fluoropyrimidin-4-yl)oxazolidin-2-one (124 mg, 0.246 mmol) was treated with 90% TFA/water for 2 hours. Concentrated in vacuo and neutralized by passing through a column of MP-carbonate resin (2.0 g, 0.55 mmol/g eluting with MeOH/DCM/MeOH afforded the diastereomeric mixture. Chiral SFC chromatography on an ID column (75 g/min, 120 bar, 21×250 mm) eluting 45% IPA/CO2 (v/v) to give (R)-3-(2-(((R)-1-(5-(4-chlorophenyl)oxazol-2-yl)ethyl)amino)-5-fluoropyrimidin-4-yl)-4-((R)-1-hydroxyethyl)oxazolidin-2-one and (R)-3-(2-(((S)-1-(5-(4-chlorophenyl)oxazol-2-yl)ethyl)amino)-5-fluoropyrimidin-4-yl)-4-((R)-1-hydroxyethyl)oxazolidin-2-one.

1. concentrationConcentrated in vacuo
2. washeluting with MeOH/DCM/MeOH
3. customafforded the diastereomeric mixture
4. washChiral SFC chromatography on an ID column (75 g/min, 120 bar, 21×250 mm) eluting 45% IPA/CO2 (v/v)