Sodium borohydride → HCID 118020562, compound

Participants

Reaction Steps

To a solution of (±)-ethyl 3-[5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoyl]-1,3-oxazolidine-2-carboxylate obtained in Reference Example 1 (4.0 g, 12.1 mmol) in MeOH (60 mL), NaBH4 (4.6 g, 121 mmol) was added gradually under cooling with ice water and stirred for 1 hour. The resulting mixture was heated to room temperature and stirred for 1 hour. The solvent was distilled off under reduced pressure, a saturated aqueous solution of ammonium chloride was added to the reaction mixture, which was extracted with CHCl3. The organic layer was washed with a saturated aqueous solution of sodium chloride, dried over Na2SO4, then the drying agent was filtered off, and then the solvent was distilled off under reduced pressure. The obtained residue was purified by column chromatography (HP-Sil 100 g, hexane/EtOAc=88/12 to 0/100) to obtain the title compound (3.6 g) (colorless oil).

Provenance & Evidence