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    • 6. 发明专利
    • Oxacephem derivative, its preparation and use
    • OXACEPHEM衍生物,其制备和使用
    • JPS59118789A
    • 1984-07-09
    • JP22935882
    • 1982-12-27
    • Shionogi & Co Ltd
    • NARISADA MASAYUKIWATANABE FUMIHIKOOKADA TETSUOMATSUMURA HIROSHI
    • A61K31/535A61P31/04C07D505/00
    • C07D505/00Y02P20/55
    • NEW MATERIAL:A compound shown by the formula I (Ar is phenyl, hydroxyphenyl, or thienyl; R is H, light metal atom, or carboxyl-protecting group).
      EXAMPLE: 7β[ 2-( 2-Thienyl )-2-ureidoacetamido ]- 7α- methyoxy-3-( 1-carbamoylmethyl-5-1H-tetrazolyl )thiomethyl-1-dethia-1-oxa-3 -cephem-4-carboxylic acid diphenylmethyl ester.
      USE: An antibacterial agent against Gram-positive bacteria (hemolytic streptococcus), Gram-negative bacteria (Escherichia coil, etc.), and an antiseptic.
      PROCESS: A compound shown by the formula III is reacted with a substituted tetrazol-5-mercaptide shown by the formula IV, light metal or its reactive drivative.
      COPYRIGHT: (C)1984,JPO&Japio
    • 新材料:由式I表示的化合物(Ar是苯基,羟基苯基或噻吩基; R是H,轻金属原子或羧基保护基)。 实施例:7beta [2-(2-噻吩基)-2-脲基乙酰胺基]-7α-甲氧基-3-(1-氨基甲酰基甲基-5- [四唑基]硫甲基-1-脱硫-1-氧杂-3-头孢-4-基) 羧酸二苯甲酯。 用途:抗革兰氏阳性菌(溶血性链球菌),革兰阴性菌(大肠杆菌等)和防腐剂的抗菌剂。 方法:将式III化合物与式IV所示的取代的四唑-5-硫醇盐,轻金属或其反应性活性剂反应。