E. (Z)-2-(2-aminothiazol-4-yl)-N-[5aR,GR)-1,4,6,7-tetrahydro-1,7-dioxo-3H,5aH-azeto[2,1-b]-furo[3,4-d][1,3]thiazin-6-yl-2(methoxyimino)acetamid (deacetylcefotaximlakton).
E. (Z)-2-(2-aminothiazol-4-yl)-N-[5aR,GR)-1,4,6,7-tetrahydro-1,7-dioxo-3H,5aH-azeto[2,1-b]-furo[3,4-d][1,3]thiazin-6-yl-2(methoxyimino)acetamid (deacetylcefotaximlakton).