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    • 16. 发明授权
    • Cephem compounds
    • 头孢烯化合物
    • US4833134A
    • 1989-05-23
    • US84882
    • 1987-08-13
    • Shoji KishimotoKiminori TomimatsuMichiyuki Sendai
    • Shoji KishimotoKiminori TomimatsuMichiyuki Sendai
    • A61K31/545C07D501/38C07D501/46
    • C07D501/46
    • Cephem compounds of the formula: ##STR1## wherein Q stands for a nitrogen atom or CH, R.sup.1 stands for a hydrogen atom or an optionally substituted lower alkyl group, R.sup.2 stands for a hydrogen atom or a lower alkyl group, A stands for a sulfur atom or NH, and n denotes an integral number ranging from 2 to 4, or salts thereof, and processes for producing them. The compounds (I) or salts thereof show not only excellent antibacterial activities against a wide range of pathogenic bacteria from gram-positive to gram-negative ones, including a variety of strains isolated clinically but also hydrophilic properties, and therefore they are excellent antibiotic substances having desirable water-solubility when used as injections.
    • 下式的头孢烯化合物:其中Q代表氮原子或CH,R1代表氢原子或任选取代的低级烷基,R2代表氢原子或低级烷基 A表示硫原子或NH,n表示2〜4的整数,或其盐,及其制造方法。 化合物(I)或其盐不仅具有针对从革兰氏阳性至革兰氏阴性菌的广泛病原菌的优良抗菌活性,包括临床分离的各种菌株,而且亲水性,因此它们是优异的抗生素物质 当用作注射剂时具有所需的水溶性。