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    • 5. 发明授权
    • Pyridine derivatives and their use as anticoccidial agents
    • 吡啶衍生物及其作为抗球虫药的用途
    • US4054663A
    • 1977-10-18
    • US639697
    • 1975-12-11
    • Yasuhiro MorisawaMitsuru KataokaNoritoshi KitanoToshiaki Matsuzawa
    • Yasuhiro MorisawaMitsuru KataokaNoritoshi KitanoToshiaki Matsuzawa
    • C07D213/81C07D213/82C07D213/85C07D213/56A61K31/44
    • C07D213/81C07D213/82C07D213/85
    • Pyridine derivatives having the formula ##STR1## wherein R.sub.1 is an alkyl group having 1 to 3 carbon atoms; R.sub.2 is hydrogen atom or an alkyl group having 1 to 3 carbon atoms; R.sub.3 is hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 3 or 4 carbon atoms, an alkyl group having 1 or 2 carbon atoms and hydroxy as a substituent, an alkanoyl group having 1 to 18 carbon atoms, an alkenoyl group having 3 to 11 carbon atoms, an aromatic acyl group having 6 or 10 carbon atoms in the aromatic ring and optionally alkyl, alkoxy, acetylamino, cyano or halogen as a substituent, a heterocyclic acyl group, an alkylcarbamoyl group having 1 to 4 carbon atoms in the alkyl moiety, an allylcarbamoyl group or hydroxy group; n is an integer of 0 to 2 inclusive; and, when n is 2, R.sub.1 's may be the same or different; provided that when R.sub.2 is said alkyl group having 1 to 3 carbon atoms, R.sub.3 is said alkyl group having 1 to 4 carbon atoms.They are highly effective in the treatment of coccidiosis.
    • 具有式“IMAGE”的吡啶衍生物,其中R 1是具有1至3个碳原子的烷基; R2是氢原子或碳原子数1〜3的烷基; R3是氢原子,碳原子数1〜4的烷基,碳原子数3〜4的烯基,碳原子数1〜2的烷基,羟基作为取代基,碳原子数1〜18的烷酰基, 具有3至11个碳原子的烯酰基,芳环中具有6或10个碳原子的芳族酰基和任选的烷基,烷氧基,乙酰氨基,氰基或卤素作为取代基,杂环酰基,烷基氨基甲酰基具有1至 烷基部分中的4个碳原子,烯丙基氨基甲酰基或羟基; n为0〜2的整数, 并且当n为2时,R 1可以相同或不同; 条件是当R 2为所述具有1至3个碳原子的烷基时,R 3为所述具有1至4个碳原子的烷基。
    • 6. 发明授权
    • Pyridine sulfonamides and their use as anticoccidial agents
    • 吡啶磺酰亚胺及其作为抗焦虑剂
    • US4094982A
    • 1978-06-13
    • US681154
    • 1976-04-28
    • Yasuhiro MorisawaMitsuru KataokaNoritoshi KitanoToshiaki Mastuzawa
    • Yasuhiro MorisawaMitsuru KataokaNoritoshi KitanoToshiaki Mastuzawa
    • C07D213/70C07D213/02A01N9/22
    • C07D213/70
    • Pyridine derivatives having the formula ##STR1## wherein R.sub.1 represents hydrogen atom, amino group or a group ##STR2## in which R.sub.5 and R.sub.6 may be the same or different and each represents an alkyl group of 1 to 4 carbon atoms or R.sub.5 is hydrogen atom and R.sub.6 represents an alkyl group of 1 to 4 carbon atoms, an alkenyl group of 3 or 4 carbon atoms or a benzyl group optionally substituted with halogen, cyano, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms;R.sub.2 represents nitro group, amino group or an alkylamino group of 1 to 3 carbon atoms;R.sub.3 and R.sub.4 individually represent hydrogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxyalkyl group which has 1 to 4 carbon atoms in the alkoxy moiety and 2 to 4 carbon atoms in the alkyl moiety, an alkenyl group of 3 or 4 carbon atoms, an alkanoyl group of 1 to 18 carbon atoms or a benzyl group optionally substituted with halogen, cyano, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms; provided that when R.sub.1 is hydrogen atom and R.sub.2 is nitro group, R.sub.3 and R.sub.4 may be the same or different and each represents said alkyl group or said alkoxyalkyl group or R.sub.3 is hydrogen atom and R.sub.4 is hydrogen atom, said alkyl group, said alkoxyalkyl group, said alkenyl group, said alkanoyl group or said benzyl group, when R.sub.1 is hydrogen atom and R.sub.2 is amino group or said alkylamino group, R.sub.3 and R.sub.4 individually is hydrogen atom or they may be the same or different and each represents said alkyl group, when R.sub.1 is amino group and R.sub.2 is nitro group, R.sub.3 and R.sub.4 may be the same or different and each represents said alkyl group or R.sub. 3 is hydrogen atom and R.sub.4 is said alkyl group or said alkenyl group, and when R.sub.1 is said group ##STR3## and R.sub.2 is nitro group, R.sub.3 and R.sub.4 are the same as defined above with respect to the R.sub.5 and R.sub.6.They are highly effective in the treatment of coccidiosis, especially that caused by the protozoa belonging to the species Eimeria tenella or E. necatrix.