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    • 1. 发明授权
    • Cephalosporin compounds
    • 头孢菌素化合物
    • US4311842A
    • 1982-01-19
    • US53852
    • 1979-07-02
    • Akio KodaIchiro IsakaYukiyasu Murakami
    • Akio KodaIchiro IsakaYukiyasu Murakami
    • A61K31/545A61K31/546A61P31/04C07D501/20C07D501/24C07D501/34C07D501/36C07D501/57C07D501/56
    • C07D501/20A61K31/545C07D501/24
    • Cephalosporin compounds shown by the general formula ##STR1## wherein R.sub.1 represents hydrogen atom or an amino group; R.sub.2 and R.sub.3, which may be the same or different, each represents hydrogen atom, a hydroxy group, an oxo group, a lower alkyl group, or a lower alkoxy group; R.sub.4 represents a hydrogen atom or a lower alkoxy group; R.sub.5 represents an acetoxy group or --S--R.sub.6 (wherein R.sub.6 represents a 5- or 6-membered nitrogen-containing heterocyclic group which can be substituted by a lower alkyl group or lower alkoxy group); and A represents a monocyclic or bicyclic heterocyclic ring containing one or two atoms selected from the group consisting of nitrogen, oxygen and a sulfur atom; and pharmaceutically acceptable nontoxic salts thereof.These compounds have excellent antimicrobial activity against various microorganisms including resistant bacteria and are used for the treatment of bacterial infections of animals including human beings.
    • 由通式表示的头孢菌素化合物,其中R1表示氢原子或氨基; R 2和R 3可以相同或不同,各自表示氢原子,羟基,氧代基,低级烷基或低级烷氧基; R4代表氢原子或低级烷氧基; R5表示乙酰氧基或-S-R6(其中R6表示可被低级烷基或低级烷氧基取代的5-或6-元含氮杂环基)。 A表示含有一个或两个选自氮,氧和硫原子的原子的单环或双环杂环; 及其药学上可接受的无毒盐。 这些化合物对包括抗性细菌在内的各种微生物具有优异的抗微生物活性,并用于治疗包括人在内的动物的细菌感染。
    • 2. 发明授权
    • Ampicillin derivatives substituted by heterocyclic acyl group
    • 由杂环酰基取代的氨苄青霉素衍生物
    • US3953428A
    • 1976-04-27
    • US356120
    • 1973-05-01
    • Masuo MurakamiIchiro IsakaAkio KodaNorio KawaharaTeruya AshiwagiYukiyasu MurakamiKuniichiro YanoKohzi NakanoIsao Souzo
    • Masuo MurakamiIchiro IsakaAkio KodaNorio KawaharaTeruya AshiwagiYukiyasu MurakamiKuniichiro YanoKohzi NakanoIsao Souzo
    • A61K31/43C07D20060101C07D499/12C07D499/44C07D499/68C07D499/70C07D499/72
    • C07D499/68
    • The ampicillin derivatives represented by the general formula ##SPC1##Wherein R represents ##SPC2##Wherein R' represents a hydrogen atom, a methyl group, or an ethyl group and A and B each represents a hydrogen atom, a hydroxyl group, a methyl group, a methoxy group, a nitro group, or a halogen atom and further said B may combine with A on the carbon atom at the position to form ##SPC3##Group (where in Z represents --CH=N-- or --CH=CH-- and an R.sup.2 represents a hydrogen atom, a hydroxyl group, a phenyl group, a methyl group, an ethyl group, a methoxy group, an ethoxyl group, a methylthio group, a trifluoromethyl group, a halogen atom, a nitro group, an acetyl group, an acetamido group, a ethoxycarbonyloxy group, or a methylsulfonyl group and further R.sub.2 and ##SPC4##May form a thiazole, isothiazolo, pyrrolo, furo, or benzo fused ring which may be substituted by an oxo group, a methyl group, or an acetyl group) and the dotted line means an arbitrary double bond, ##SPC5##Wherein R.sup.3 and R.sup.4 each represents a hydrogen atom or a methyl group, ##SPC6##Wherein R.sup.5 represents a halogen atom, a methoxy group, a nitro group, or a hydroxyl group and R.sup.6 represents a hydrogen atom, a methoxy group, a halogen atom, a nitro group, or a hydroxyl group, or ##SPC7##Wherein R.sup.7 represents a hydrogen atom or a hydroxyl group, Y represents O or S, and the dotted line means an arbitrary double bond, said substituent group, being bonded to the ampicillin molecule through --CO-- at the 2-position, 3-position, 5-position or 6-position when the oxo group (+0) is at the 4-portion and being bonded to the ampicillin molecule through the --CO-- group at the 2-position, 4-position, or 5-position when the oxy group is at the 6-position, and salts of the ampicillin derivatives.Those compounds are valuable as antibacterial agents.
    • 由通式WHEREIN R表示的氨苄青霉素衍生物代表WHEREIN R'表示氢原子,甲基或乙基,A和B各自表示氢原子,羟基,甲基,甲氧基, 硝基或卤素原子,并且所述B可以与碳原子上的A结合形成基团(其中Z表示-CH = N-或-CH = CH-,R2表示氢原子, 羟基,苯基,甲基,乙基,甲氧基,乙氧基,甲硫基,三氟甲基,卤素原子,硝基,乙酰基,乙酰氨基,乙氧基羰基氧基 或甲基磺酰基,并且还可以是OXO基团,甲基或乙酰基团可以取代的噻唑,异噻唑,吡咯,呋喃,或苯并呋喃环),并且被引导的线表示仲胺双 BOND,其中R 3和R 4各自表示氢原子或甲基 其中,R5表示卤素原子,甲氧基,硝基或羟基,R6表示氢原子,甲氧基,卤素原子,硝基或羟基,或者WHEREIN R7表示 氢原子或羟基,Y表示O或S,虚线表示任意双键,所述取代基通过2-位,3-位,5-位上的-CO-键合到氨苄青霉素分子上 当氧基团(+0)为4-部分时,或6-位,当氧基团为氧基团时,2-位,4-位或5-位通过-CO-基团连接于氨苄青霉素分子 在6位,和氨苄青霉素衍生物的盐。