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    • 4. 发明申请
    • NOVEL CEPHEM DERIVATIVES
    • 新CEPHEM衍生物
    • WO1998025935A1
    • 1998-06-18
    • PCT/JP1997004489
    • 1997-12-08
    • MEIJI SEIKA KAISHA, LTD.KOBAYASHI, KazukoUMEMURA, EijirouATSUMI, KunioIDA, Takashi
    • MEIJI SEIKA KAISHA, LTD.
    • C07D519/06
    • C07D519/00
    • Compounds represented by general formula (I). These compounds have broad and potent antibacterial activities on gram-positive bacteria including those producing beta -lactamase and gram-negative bacteria. In particular, these compounds are superior to the existing cephem derivatives of the onium salt type in the antibacterial activities on methicillin-resistant Staphylococcus aureus (MRSA), penicillin-resistant Streptococcus pneumoniae (PRSP) and imipenem-resistant Pseudomonas aeruginosa, which makes them highly useful as remedies for infectious diseases caused by various pathogenic bacteria. In said formula, X represents CH or N; R represents hydrogen, optionally substituted C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl or cycloalkyl; one of R , R , R and R R NSO2NHC1-6 (wherein R and R may be the same or different from each other and each represents hydrogen or C1-6 alkyl); and n is 0 or 1.
    • 由通式(I)表示的化合物。 这些化合物对革兰氏阳性细菌具有广泛有效的抗菌活性,包括那些产生β-内酰胺酶和革兰氏阴性细菌的抗菌活性。 特别地,这些化合物优于现有的鎓盐型头孢烯衍生物对耐甲氧西林金黄色葡萄球菌(MRSA),青霉素耐药性肺炎链球菌(PRSP)和亚胺培南耐药铜绿假单胞菌的抗菌活性,使其高度 可用作各种病原菌引起的传染病的补救措施。 在所述式中,X表示CH或N; R 1表示氢,任选取代的C 1-6烷基,C 2-6烯基,C 2-6炔基或环烷基; R 2,R 3,R 4,R 5, 表示R 6> R 7 NSO 2 NHC 1-6(其中R 6和R 7可以相同或不同,各自表示氢或C 1-6烷基)。 n为0或1。
    • 5. 发明申请
    • NOVEL CEPHEM DERIVATIVES
    • 新的CEPHEM衍生物
    • WO1996037499A1
    • 1996-11-28
    • PCT/JP1996001406
    • 1996-05-24
    • MEIJI SEIKA KABUSHIKI KAISHAUMEMURA, EijiroATSUMI, KunioIWAMATSU, KatsuyoshiTAMURA, Atsushi
    • MEIJI SEIKA KABUSHIKI KAISHA
    • C07D519/00
    • C07D501/00Y02P20/55
    • Compounds represented by general formula (I) and having a beta -(optionally substituted imidazo[5,1-b]thiazolyl)vinyl group at the 3-position of the cephem ring, and salts and esters thereof. These compounds have an extremely broad antimicrobial spectrum and exerts potent antimicrobial effects on Gram-positive bacteria, Gram-negative bacteria and even resistant bacteria. In formula (I) X represents CH or N; R represents hydrogen or an amino protecting group; R represents hydrogen, C1-6 alkyl, C3-7 cycloalkyl or a hydroxy protecting group; R is not present or represents hydrogen, a cation forming a salt or a carboxy protecting group; R , R and R may be the same or different and each represents hydrogen or C1-6 alkyl; R is not present or represents a cation of C1-6 alkyl; and n is an integer of 0 or 1.
    • 由通式(I)表示并在头孢烯环的3位具有β-(任选取代的咪唑并[5,1-b]噻唑基)乙烯基的化合物及其盐和酯。 这些化合物具有非常宽的抗菌谱,对革兰氏阳性菌,革兰氏阴性细菌甚至抗性细菌都发挥有力的抗菌作用。 在式(I)中,X表示CH或N; R 1表示氢或氨基保护基; R 2表示氢,C 1-6烷基,C 3-7环烷基或羟基保护基; R 3不存在或表示氢,形成盐或羧基保护基的阳离子; R 4,R 5和R 6可以相同或不同,各自表示氢或C 1-6烷基; R 7+不存在或表示C 1-6烷基的阳离子; n为0或1的整数。