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    • 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。