Benzyl Alcohol → HCID 10415367, compound

Participants

Reaction Steps

In 2 ml of N,N-dimethylformamide was dissolved 230 mg of benzyl alcohol. To the resulting solution was added 85 mg of 60% sodium hydride with ice-cooling. The resulting mixture was stirred at room temperature for 30 minutes. Thereto was added, with ice-cooling, 250 mg of 10-(1-benzyloxycarbonylaminocyclopropyl)-8,9-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]-benzoxazine-6-carboxylic acid. The resulting mixture was stirred at room temperature for 7 hours. The reaction mixture was added to a mixture of 15 ml of ethyl acetate and 15 ml of water. The resulting mixture was adjusted to pH 1 with 2N hydrochloric acid. The organic layer was separated, washed with water and a saturated aqueous sodium chloride solution in this order, and dried over anhydrous magnesium sulfate. The solvent was removed by distillation under reduced pressure. The residue obtained was purified by a column chromatography (eluant: chloroform/ethanol=10/1) to obtain 73.0 mg (yield: 24.6%) of 8-benzyloxy-10-(1-benzyloxycarbonylaminocyclopropyl)-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid.

Provenance & Evidence