反应详情

2-(2-Aminothiazol-4-yl)-2-iso-butoxyiminoacetic acid (syn isomer, 11.5 g.), acetic anhydride (19.3 g.) and formic acid (8.7 g.) were treated in a similar manner to that of Example F-(5) to give 2-(2-formamidothiazol-4-yl)-2-iso-butoxyiminoacetic acid (syn isomer, 11.15 g.), mp 163° C. (dec.).