Pradimicin derivatives
    7.
    发明授权
    Pradimicin derivatives 失效
    普拉定霉素衍生物

    公开(公告)号:US5696096A

    公开(公告)日:1997-12-09

    申请号:US590621

    申请日:1990-09-28

    CPC分类号: C07H15/244 C07H15/24

    摘要: The present invention relates to new antifungal compounds having the formula ##STR1## wherein R.sup.1 is hydrogen, methyl, or hydroxymethyl; R.sup.2 and R.sup.3 are independently selected from the group consisting of hydrogen and C.sub.1-5 alkyl; and R.sup.4 is selected from the group consisting of .beta.-L-xylosyl, .beta.-D-ribosyl, .alpha.-L-arabinosyl, .beta.-D-chinovosyl, .beta.-D-fucosyl, and .beta.-D-glucosyl; with the proviso that when R.sup.1 is methyl or hydroxymethyl, and one of R.sup.2 or R.sup.3 is methyl, R.sup.4 is not .beta.-D-glucosyl; or a pharmaceutically acceptable salt thereof.

    摘要翻译: 本发明涉及具有下式的新的抗真菌化合物:其中R1是氢,甲基或羟甲基; R2和R3独立地选自氢和C 1-5烷基; 并且R 4选自由β--L-木糖基,β-D-糖基,α-L-阿拉伯糖基,β-D-核苷酸,β-D-岩藻糖基和β-D-葡糖基组成的组。 条件是当R1是甲基或羟甲基,R2或R3之一是甲基时,R4不是β-D-葡糖基; 或其药学上可接受的盐。

    Cephalosporin derivatives
    8.
    发明授权
    Cephalosporin derivatives 失效
    头孢菌素衍生物

    公开(公告)号:US4751295A

    公开(公告)日:1988-06-14

    申请号:US920933

    申请日:1986-10-17

    CPC分类号: C07D285/08 C07C45/79

    摘要: 7-[2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-(substituted)-iminoacetamido]-3-[3-(quaternaryammonio)-1-propen-1-yl]-3-cephem-4-carboxylates of the formula ##STR1## in which R.sup.1 and R.sup.2 are defined herein and --.sup..sym. N.tbd.Q is a quaternary ammonio group as defined herein, and salts, solvates, hydrates and esters thereof, are potent antibacterial agents. Processes for their preparation and intermediates in such processes are described.

    摘要翻译: 7- [2-(5-氨基-1,2,4-噻二唑-3-基)-2-(取代的) - 亚氨基乙酰氨基] -3- [3-(季铵)-1-丙烯-1-基] 其中R 1和R 2在本文中定义,并且 - (+)N 3BOND Q是如本文所定义的季铵基,并且其盐,溶剂合物,水合物和酯类的3-头孢烯-4-羧酸酯 是有效的抗菌剂。 描述了其制备方法和中间体在这些方法中的用途。