Hydrochloric Acid → HCID 9985204, compound

Participants

Reaction Steps

In 2 ml of N,N-dimethylformamide was dissolved 200 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. To the resulting solution was added 319 mg of benzylamine. The resulting mixture was stirred at 90°-100° C. for 4.5 hours. The reaction mixture was added to a mixture of 5 ml of ethyl acetate and 5 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. Diethyl ether was added to the residue obtained and the resulting crystals were collected by filtration to obtain 110 mg (yield: 46.4%) of 8-benzylamino-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