1-Acyloxyalkyl esters of cephalosporin
    1.
    发明授权
    1-Acyloxyalkyl esters of cephalosporin 失效
    头孢菌素的1-芳氧基烷基酯

    公开(公告)号:US4725592A

    公开(公告)日:1988-02-16

    申请号:US637138

    申请日:1984-08-03

    CPC分类号: C07D501/36

    摘要: A compound of the formula: ##STR1## wherein R.sub.1 stands for n-propyl or isopropyl; and R.sub.2 stands for n-butyl, isobutyl, n-pentyl, n-hexyl or 2-ethylbutyl, or a pharmaceutically acceptable salt thereof, processes for preparing the same and a pharmaceutical composition thereof are provided. The compound can orally be applied as antibiotics having improved bioavailability.

    摘要翻译: 下式的化合物:其中R 1代表正丙基或异丙​​基; R2代表正丁基,异丁基,正戊基,正己基或2-乙基丁基,或其药学上可接受的盐,其制备方法及其药物组合物。 该化合物可口服施用,具有改善生物利用度的抗生素。

    Method for producing 1-iodoalkyl acylates
    2.
    发明授权
    Method for producing 1-iodoalkyl acylates 失效
    1-碘代烷基酰化物的制备方法

    公开(公告)号:US4593115A

    公开(公告)日:1986-06-03

    申请号:US673944

    申请日:1984-11-21

    摘要: An 1-Iodoalkyl acylate, which is useful as the raw material for esterification of cephalosporins, penicillins, etc. is prepared in a high degree of purity and in high yield by (1) allowing a carboxylic acid iodide to react with an aldehyde, or (2) allowing a carboxylic acid chloride to react with a salt of hydriodic acid and then allowing the resulting product to react with an aldehyde, or (3) by simultaneously allowing a carboxylic acid chloride, a salt of hydriodic acid and an aldehyde to react with one another.

    摘要翻译: 通过(1)使羧酸碘化物与醛反应,以高纯度和高收率制备可用作头孢菌素,青霉素等酯化原料的1-碘烷基酰化物,或 (2)使羧酰氯与氢碘酸盐反应,然后使所得产物与醛反应,或(3)同时使羧酰氯,氢碘酸和醛的盐反应 彼此之间。

    7-[2-(2-Aminothiazol-4-yl)-2-substituted thio-acetamido] cephalosporins
    4.
    发明授权
    7-[2-(2-Aminothiazol-4-yl)-2-substituted thio-acetamido] cephalosporins 失效
    7- [2-(2-氨基噻唑-4-基)-2-取代的硫代乙酰氨基]头孢菌素

    公开(公告)号:US4238608A

    公开(公告)日:1980-12-09

    申请号:US43323

    申请日:1979-05-29

    CPC分类号: C07D207/48

    摘要: A novel compound of the formula: ##STR1## wherein R is lower alkyl or a group of the formula ##STR2## where R.sup.1 and R.sup.2 are the same or different and each is hydrogen, carboxyl or halogen; Y is acyloxy or a group of the formula --S--Het where Het is a nitrogen-containing heterocyclic group which may optionally be substituted, or a pharmaceutically acceptable salt thereof is found to be effective for treatment of diseases in animals including domestic fowls and human beings, particularly the infectious diseases caused by gram-positive and gram-negative bacteria.

    摘要翻译: 下式的新型化合物:其中R是低级烷基或式IMAGE的基团,其中R 1和R 2相同或不同,各自为氢,羧基或卤素; Y是酰氧基或式-S-Het的基团,其中Het是可任选被取代的含氮杂环基,或其药学上可接受的盐对于治疗动物,包括家禽和人类的疾病是有效的 生物,特别是由革兰氏阳性和革兰氏阴性菌引起的传染病。

    Cephalosporin derivatives
    6.
    发明授权
    Cephalosporin derivatives 失效
    头孢菌素衍生物

    公开(公告)号:US4517361A

    公开(公告)日:1985-05-14

    申请号:US480791

    申请日:1983-03-31

    摘要: A compound of the formula: ##STR1## wherein R.sup.1 represents hydrogen or an alkyl group, X represents oxygen or sulfur or a group of formula -NR.sup.2 (where R.sup.2 is hydrogen or an alkyl group and in the case of alkyl, it may form a ring jointed with R.sup.1), and Y represents acetoxy group or a group of formula -SR.sup.3 (where R.sup.3 is a nitrogen-containing heterocyclic group), or a pharmaceutically acceptable salt thereof, is found to have a broad antimicrobial spectrum and, in particular, effective against gram-negative bacteria including Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris, Proteus morganii, as well as gram positive ones. Thus, these compounds may be used for antimicrobial agents in therapeutical purposes.

    摘要翻译: 下式的化合物:其中R 1表示氢或烷基,X表示氧或硫或式-NR 2基团(其中R 2是氢或烷基,在烷基的情况下可以形成 环与R 1连接),Y表示乙酰氧基或式-SR 3(其中R 3为含氮杂环基)基团或其药学上可接受的盐具有宽的抗菌谱,特别是, 对革兰氏阴性菌有效,包括大肠杆菌,肺炎克雷伯杆菌,普通变形杆菌,变形杆菌,以及革兰氏阳性菌。 因此,这些化合物可用于治疗目的的抗微生物剂。

    7-Alpha-(2-aminothiazole)-acetamido-cephalosporins
    9.
    发明授权
    7-Alpha-(2-aminothiazole)-acetamido-cephalosporins 失效
    7-α-(2-氨基噻唑) - 乙酰氨基 - 头孢菌素

    公开(公告)号:US4080498A

    公开(公告)日:1978-03-21

    申请号:US534782

    申请日:1974-12-20

    摘要: A compound of the formula: ##STR1## wherein R.sup.1 represents hydrogen or an alkyl group, X represents oxygen or sulfur or a group of formula --NR.sup.2 (where R.sup.2 is hydrogen or an alkyl group and in the case of alkyl, it may form a ring jointed with R.sup.1), and Y represents acetoxy group or a group of formula --SR.sup.3 (where R.sup.3 is a nitrogen-containing heterocyclic group), or a pharmaceutically acceptable salt thereof, is found to have a broad antimicrobial spectrum and, in particular, effective against gram-negative bacteria including Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris, Proteus morganii, as well as gram positive ones. Thus, these compounds may be used for antimicrobial agents in therapeutical purposes.

    摘要翻译: 下式的化合物:其中R 1表示氢或烷基,X表示氧或硫或式-NR 2基团(其中R 2是氢或烷基,在烷基的情况下可以形成 环与R 1连接),Y表示乙酰氧基或式-SR 3(其中R 3为含氮杂环基)基团或其药学上可接受的盐具有宽的抗菌谱,特别是, 对革兰氏阴性菌有效,包括大肠杆菌,肺炎克雷伯杆菌,普通变形杆菌,变形杆菌,以及革兰氏阳性菌。 因此,这些化合物可用于治疗目的的抗微生物剂。