反应详情

2-(2-Aminothiazol-4-yl)-2-iso-propoxyiminoacetic acid (syn isomer, 4 g.), acetic anhydride (7.6 g. ) and formic acid (3.4 g.) were treated in a similar manner to that of Example F-(5) to give 2-(2-formamidothiazol-4-yl)-2-iso-propoxyiminoacetic acid (syn isomer, 3.75 g.), mp. 168° to 169° C. (dec.).