New semisynthetic cephalosporins are described whose structures are characterized by having an .alpha.-oxyimino group in the 7-acetamido moiety and a sulfosubstituted tetrazolylthiomethyl group at position 3. The compounds are active antibacterial agents especially against Gram negative organisms.
描述了一种新的半合成
头孢菌素,其结构特点是在7-乙酰胺基团中具有α-氧
亚胺基团,并在位置3处具有磺代取代的
四唑硫甲基基团。这些化合物是活性抗菌剂,特别对抗革兰氏阴性菌。