会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 21. 发明授权
    • Cephalosporins
    • 头孢菌素
    • US4316898A
    • 1982-02-23
    • US151694
    • 1980-05-20
    • Bernd WetzelEberhard WaitunRoland MaierWolfgang RueterUwe LechnerHans Goeth
    • Bernd WetzelEberhard WaitunRoland MaierWolfgang RueterUwe LechnerHans Goeth
    • A61K31/545A61K31/546A61P31/04C07D239/46C07D501/20C07D501/36C07D501/57
    • C07D239/47Y02P20/55
    • Cephalosporins of the formula ##STR1## wherein A is phenyl, 4-hydroxyphenyl, cyclohexyl, cyclohexene-1-yl, cyclohexa-1,4-diene-1-yl, 2-thienyl, 3-thienyl, 2-furyl, 3-furyl or 3,4-disubstituted phenyl, where the substituents, which may be identical to or different from each other, are each chlorine, hydroxyl or methoxy;Y is hydrogen or methoxy;D is hydrogen, hydroxyl, acetoxy, aminocarbonyloxy, pyridinium, aminocarbonyl-pyridinium or the group S-Het, where Het is 1-methyl-tetrazol-5-yl, tetrazol-5-yl, 3-methyl-1,2,4-thiadiazol-5-yl, 1,2,4-thiadiazol-5-yl, 1,3,4-thiadiazol-5-yl, 2-methyl-1,3,4-thiadiazol-5-yl, 2-methylamino-1,3,4-thiadiazol-5-yl, 2-dimethylamino-1,3,4-thiadiazol-5-yl, 2-formylamino-1,3,4-thiadiazol-5-yl, 2-acetylamino-1,3,4-thiadiazol-5-yl, 2-methyl-1,3,4-oxadiazol-5-yl, 1,2,3-triazol-4-yl or 1,2,4-triazol-3-yl;R is hydrogen, methyl, cyclopropyl, hydroxyl, methoxy, ethoxy, mercapto, morpholino, thiomorpholino, thiomorpholino-S-oxide, thiomorpholino-S,S-dioxide, ##STR2## E is hydrogen or a protective group which is easily removable in vitro or in vivo;and nontoxic, pharmacologically acceptable salts thereof.
    • 其中A为苯基,4-羟基苯基,环己基,环己烯-1-基,环己-1,4-二烯-1-基,2-噻吩基,3-噻吩基,2-呋喃基,3-甲氧基苯基, 呋喃基或3,4-二取代的苯基,其中可以相同或不同的取代基各自为氯,羟基或甲氧基; Y是氢或甲氧基; D是氢,羟基,乙酰氧基,氨基羰基氧基,吡啶鎓,氨基羰基 - 吡啶鎓或S-Het基团,其中Het是1-甲基 - 四唑-5-基,四唑-5-基,3-甲基-1,2,4- 噻二唑-5-基,1,2,4-噻二唑-5-基,1,3,4-噻二唑-5-基,2-甲基-1,3,4-噻二唑-5-基,2-甲基氨基 -1,3,4-噻二唑-5-基,2-二甲基氨基-1,3,4-噻二唑-5-基,2-甲酰氨基-1,3,4-噻二唑-5-基,2-乙酰基氨基-1 ,3,4-噻二唑-5-基,2-甲基-1,3,4-恶二唑-5-基,1,2,3-三唑-4-基或1,2,4-三唑-3-基 ; R是氢,甲基,环丙基,羟基,甲氧基,乙氧基,巯基,吗啉代,硫代吗啉代,硫代吗啉代-S-氧化物,硫代吗啉代-S,S-二氧化物,E是氢或保护基, 体外或体内可去除; 和无毒的药学上可接受的盐。