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    • 1. 发明授权
    • Cephalosporin derivatives
    • 头孢菌素衍生物
    • US5232918A
    • 1993-08-03
    • US653149
    • 1991-02-11
    • Jean C. ArnouldDominique BoucherotDavid H. DaviesFrederick H. JungColin J. Strawson
    • Jean C. ArnouldDominique BoucherotDavid H. DaviesFrederick H. JungColin J. Strawson
    • A61K31/545C07D241/44C07D501/36C07D501/46
    • C07D501/46C07D501/40
    • Cephalosporin derivatives having a 3-position substituent of formula I are described: ##STR1## wherein R.sup.1 is hydrogen, alkenyl or optionally substituted alkyl, Het is a 5- or 6-membered heterocyclic ring bonded via a carbon atom to the amide linkage, wherein Het is selected from a group of the formulae II-III: ##STR2## wherein A is CH or a nitrogen atom; B is oxygen, sulphur or a group NR.sup.4 ; one or two of D, E, F and G are nitrogen atoms and the remainder are CH groups: or Het is a pyrazinone, pyridinone, pyridazinone or pyrimidinone ring, or is a thione equivalent of such a ring, said rings having a substituent R.sup.4 on one nitrogen atom, or is pyranone, or pyranthione; the ring Het being fused by any two adjacent carbon atoms to the benzene ring; and Het being attached to the --CH.sub.2 NR.sup.1 CO-- group via a carbon atom;R.sup.2 is hydroxy or an in vivo hydrolysable ester thereof;R.sup.3 is ortho to R.sup.2 and is hydroxy or an in vivo hydrolysable ester thereof; and R.sup.4 has various values. The use of such compounds as antibacterial agents is described as are processes for their preparation and intermediates therefor.
    • 描述了具有式I的3位取代基的头孢菌素衍生物:其中R 1是氢,烯基或任选取代的烷基,Het是通过碳原子与酰胺键键合的5-或6-元杂环,其中 Het选自式II-III的基团:其中A是CH或氮原子; B是氧,硫或NR4基团; D,E,F和G中的一个或两个是氮原子,其余是CH基团:或Het是吡嗪酮,吡啶酮,哒嗪酮或嘧啶酮环,或者是这样的环的硫酮当量,所述环具有取代基R 4 在一个氮原子上,或是吡喃酮或吡喃硫酮; 环Het被任何两个相邻的碳原子融合到苯环上; Het通过碳原子连接到-CH 2 NR 1 CO-基团; R2为羟基或其体内可水解的酯; R3是R2的邻位,是羟基或其体内可水解的酯; R4具有各种价值。 这些化合物作为抗菌剂的使用被描述为它们的制备方法及其中间体。
    • 4. 发明授权
    • Bicyclo-heterocyclic intermediates for cephalosporin compounds
    • 双环杂环中间体用于头孢菌素化合物
    • US5371220A
    • 1994-12-06
    • US886392
    • 1992-05-21
    • Dominique BoucherotFrederick H. JungColin J. Strawson
    • Dominique BoucherotFrederick H. JungColin J. Strawson
    • A61K31/545C07D241/44C07D501/36C07D501/46
    • C07D501/46C07D501/40
    • Cephalosporins derivatives having a 3-position substituent of the formula I are described: ##STR1## wherein R.sup.1 is hydrogen, alkenyl or optionally substituted alkyl, Het is a 5- or 6-membered heterocyclic ring bonded via a carbon atom to the amide linkage, wherein Het is selected from a group of the formulae II-III: ##STR2## wherein A is CH or a nitrogen atom; B is oxygen, sulphur or a group NR.sup.4 ; one or two of D, E, F and G are nitrogen atoms and the remainder are CH groups: or Het is a pyrazinone, pyridinone, pyridazinone or pyrimidinone ring, or is a thione equivalent of such a ring, said rings having a substituent R.sup.4 on one nitrogen atom, or is pyranone, or pyranthione; the ring Het being fused by any two adjacent carbon atoms to the benzene ring; and Het being attached to the --CH.sub.2 NR.sup.1 CO-- group via a carbon atomR.sup.2 is hydroxy or an in vivo hydrolysable ester thereof;R.sup.3 is ortho to R.sup.2 and is hydroxy or an in vivo hydrolysable ester thereof; and R.sup.4 has various values. The use of such compounds as antibacterial agents is described as are processes for their preparation and intermediates therefor.
    • 描述了具有式I的3位取代基的头孢菌素衍生物:其中R 1是氢,烯基或任选取代的烷基,Het是通过碳原子与酰胺键连接的5-或6-元杂环, 其中Het选自式II-III的基团:其中A是CH或氮原子; B是氧,硫或NR4基团; D,E,F和G中的一个或两个是氮原子,其余是CH基团:或Het是吡嗪酮,吡啶酮,哒嗪酮或嘧啶酮环,或者是这样的环的硫酮当量,所述环具有取代基R 4 在一个氮原子上,或是吡喃酮或吡喃硫酮; 环Het被任何两个相邻的碳原子融合到苯环上; Het通过碳原子连接到-CH 2 NR 1 CO-基团上,R2是羟基或其体内可水解的酯; R3是R2的邻位,是羟基或其体内可水解的酯; R4具有各种价值。 这些化合物作为抗菌剂的使用被描述为它们的制备方法及其中间体。