Ethyl Acetate → HCID 59614349, compound

Participants

Reaction Steps

To a solution of (2S,3S,5R)-2-benzyl-5-ethyl-3-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester (0.138 mmol; 42 mg) in dichloromethane (1.4 mL) is added Dess-Martin periodinane (0.166 mmol; 70.4 mg) at 0° C. The mixture is stirred at the same temperature for 1.5 hours. To the mixture, brine and EtOAc are added. The organic layer is separated, washed with saturated aqueous Na2S2O3 solution, dried over Na2SO4, filtered, concentrated under reduced pressure. The residue is purified by column chromatography on silica gel (eluent; n-hexane/EtOAc) to give (2S,5R)-2-benzyl-5-ethyl-3-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester (29.8 mg, 71%); ESI-MS m/z: 248 [M+−tBu+2], Retention time 2.49 min (condition A).

Provenance & Evidence