申请人:Hoffmann-La Roche Inc.
公开号:US03950320A1
公开(公告)日:1976-04-13
Derivatives of antibiotic X-537A of the formula Wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, phenyl, and phenyl substituted by a member of the group consisting of halogen, nitro, and lower alkyl; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl, lower alkanoyl, ##SPC1## benzoyl, and benzoyl substituted by a member of the group consisting of halogen, nitro and lower alkyl; R.sub.5 is selected from the group consisting of phenylazo and phenylazo substituted by a member of the group consisting of halogen, nitro, lower alkyl and lower alkoxy; and R.sub.4 is selected from the group consisting of --OH, =O, and =N--OH and the pharmaceutically acceptable alkali metal, alkaline earth metal and ammonium salts thereof, together with methods for their preparation are disclosed. These derivatives are useful as coccidiostatic agents and antibacterial agents.
抗生素X-537A的衍生物的公式为:其中R.sub.1选自氢,低烷基,苯基和苯基取代物,所述苯基取代物由卤素,硝基和低烷基组成;R.sub.2选自氢,低烷基,低脂肪酰基,##SPC1##苯甲酰基和苯甲酰基取代物,所述苯甲酰基取代物由卤素,硝基和低烷基组成;R.sub.5选自苯基偶氮和苯基偶氮取代物,所述苯基偶氮取代物由卤素,硝基,低烷基和低烷氧基组成;R.sub.4选自--OH,=O和=N--OH以及其药学上可接受的碱金属,碱土金属和铵盐,还公开了其制备方法。这些衍生物可用作球虫静止剂和抗菌剂。