反应详情

Ethyl 2-n-hexyloxyimino-4-chloro-3-oxobutyrate (syn isomer, 55.6 g.), thiourea (15.2 g.), sodium acetate 3-hydrate (27.2 g.), ethanol (280 ml.) and water (140 ml.) were treated in a similar manner to that of Example F-(3) to give ethyl 2-(2-aminothiazol-4-yl)-2-n-hexyloxyiminoacetate (syn isomer, 29.3 g.), mp 77° to 78° C.