(2-Formamido-1,3-thiazol-4-yl)(oxo)acetic acid → HCID 53828491, compound

Participants

Reaction Steps

A mixture of 2-(2-formamidothiazol-4-yl)glyoxylic acid (2.79 g.) and N-(2-hydroxy-5-chlorophenyl)-2-(aminooxy)acetamide (3.32 g.) in ethanol (30 ml.) was stirred for 5 hours at room temperature. The reaction mixture was evaporated to dryness and to the residue was added a mixture of ethyl acetate, water and 10% hydrochloric acid followed by stirring. The ethyl acetate layer was separated, washed with diluted hydrochloric acid and an aqueous solution of sodium chloride, dried over magnesium sulfate, concentrated to a small volume and allowed to stand under ice-cooling. The resulting precipitates were collected by filtration, washed with ethyl acetate and then dried under reduced pressure to give the title compound (4.59 g.).

Provenance & Evidence