申请人:Eli Lilly and Company
公开号:US04061861A1
公开(公告)日:1977-12-06
Cephalosporin antibiotics of the formula ##STR1## in which, for example, R is phenyl, hydroxyphenyl, halophenyl, thienyl, or furyl; R.sub.1 is hydrogen, carbamoyloxy, acetoxy, a lower alkyl substituted 1H-tetrazol-5-ylthio or 1,3,4-thiadiazol-5-ylthio group; and R.sub.2 is hydrogen or methyl; are highly active broad spectrum antibiotics especially useful in the treatment of infections attributable to the gram-negative microorganisms.
公式为##STR1##的头孢菌素类抗生素,例如,其中R为苯基、羟基苯基、卤代苯基、噻吩基或呋喃基;R.sub.1为氢、氨基甲酰氧基、乙酰氧基、取代的低碳基1H-四唑-5-基硫或1,3,4-噻二唑-5-基硫基团;R.sub.2为氢或甲基;是高效广谱抗生素,特别适用于治疗由革兰氏阴性微生物引起的感染。