Carbon dioxide methanol → (S)-Benzyl(3,4-dihydroxybutyl)carbamate

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Reaction Steps

The title compound was prepared by chiral separation (Preparative chiral SFC, ChiralPak® AD-H, 250×50 mm, mobile phase: CO2/MeOH (3:2), flow rate: 110 mL/min, back pressure: 100 bar, column temperature: 38° C., wavelength: 210 nm, cycletime: ˜4.0 min) of a racemic mixture of benzyl (3,4-dihydroxybutyl)carbamate (Prepared accordingly to WO2011107608), faster eluting isomer (Peak 1). Analytical chiral SFC (ChiralPak AD-3, 150×4.6 mm, eluent: CO2/MeOH+0.05% DEA (75:35), flow rate: 2.5 mL/min, back pressure: 100 bar, temperature: 35° C., 210 nm): tR=2.22 min.

Provenance & Evidence