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    • 4. 发明授权
    • Imidazole-substituted quinoxalinedione derivatives
    • 咪唑取代的喹喔啉二酮衍生物
    • US6121264A
    • 2000-09-19
    • US194750
    • 1998-12-02
    • Shuichi SakamotoJunya OhmoriJun-ichi ShishikuraMasamichi OkadaMasao Sasamata
    • Shuichi SakamotoJunya OhmoriJun-ichi ShishikuraMasamichi OkadaMasao Sasamata
    • C07D403/04A61K31/495C07D521/00A61K31/498C07D403/10C07D403/14
    • C07D231/12C07D233/56C07D249/08
    • Imidazole-substituted quinoxalinedione derivatives represented by the following general formula (I) or pharmaceutically acceptable salts thereof and pharmaceutical compositions useful as glutamate receptor antagonists and the like, which comprise said compounds or salts thereof and pharmaceutically acceptable carriers. ##STR1## (Each symbol in the formula has the following meaning: A: a group represented by a formula (CH.sub.2).sub.m or a group represented by a formula Ph--(CH.sub.2).sub.p (Ph: a phenyl group),X: an oxygen atom or a group represented by a formula NR.sup.4,R.sup.1 : a hydrogen atom, a hydroxyl group or a triazolyl group, with the proviso that X may be a bond when R.sup.1 is a triazolyl group,R.sup.2 : a hydrogen atom, a nitro group, a halogeno-lower alkyl group, a cyano group, an amino group, a mono- or di-lower alkylamino group or a halogen atom,R.sup.3 and R.sup.4 : may be the same or different from each other and each represents a hydrogen atom or a lower alkyl group,n: 0, 1 or 2,m: an integer of 2 to 6, andp: an integer of 1 to 6.
    • PCT No.PCT / JP97 / 01905 Sec。 371日期1998年12月2日第 102(e)日期1998年12月2日PCT提交1997年6月5日PCT公布。 公开号WO97 / 46555 日期:1997年12月11日由以下通式(I)表示的咪唑取代的喹喔啉二酮衍生物或其药学上可接受的盐以及用作谷氨酸受体拮抗剂等的药物组合物,其包含所述化合物或其盐和药学上可接受的载体。 (式中的每个符号具有以下含义:A:由式(CH 2)m表示的基团或由式Ph-(CH 2)p(Ph:苯基)表示的基团,X:氧原子或 由式NR4表示的基团,R1:氢原子,羟基或三唑基,条件是当R 1为三唑基时,X可以为键,R 2为氢原子,硝基,卤代 低级烷基,氰基,氨基,一或二低级烷基氨基或卤素原子,R 3和R 4可以相同或不同,表示氢原子或低级烷基 基团,n:0,1或2,m为2〜6的整数,p为1〜6的整数。
    • 7. 发明授权
    • Inhibitor of kainic acid neurotoxicity and pyridothiazine derivative
    • 红藻氨酸神经毒性抑制剂和吡啶并噻嗪衍生物
    • US6133258A
    • 2000-10-17
    • US68534
    • 1998-05-13
    • Jun-ichi ShishikuraHiroshi InamiTomoyuki YasunagaMasaaki HiranoShuichi SakamotoKazushige OhnoMasamichi OkadaShin-ichi Tsukamoto
    • Jun-ichi ShishikuraHiroshi InamiTomoyuki YasunagaMasaaki HiranoShuichi SakamotoKazushige OhnoMasamichi OkadaShin-ichi Tsukamoto
    • A61K31/5415A61K31/542C07D513/04
    • A61K31/5415
    • Neuroprotective agents based on inhibition of kainic acid neurotoxicity and compounds useful as neuroprotective agents based on inhibition of kainic acid neurotoxicity. An inhibitors of kainic acid neurotoxicity, comprising as an active ingredient a pyridothiazine derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof, and a pyridothiazine derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein symbols in the formula have the following respective meanings: the ring A: a pyridine ring; ##STR2## R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different and each represent a hydrogen atom or a lower alkyl, cycloalkyl, alkenyl, aryl, carboxyl or lower alkoxycarbonyl group which may have substituent(s), or are not present, with the proviso that R.sup.2 and R.sup.3 may together form a nitrogen-containing heterocyclic group which may have nitrogen atoms as another hetero atom, may be fused with a benzene ring and may have a lower alkyl group as a substituent.
    • PCT No.PCT / JP96 / 03339 Sec。 371日期1998年5月13日 102(e)日期1998年5月13日PCT 1996年11月14日PCT PCT。 出版物WO97 / 17970 日期1997年5月22日基于抑制红藻氨酸神经毒性的神经保护剂和基于抑制红藻氨酸神经毒性作用的神经保护剂的化合物。 作为活性成分的红藻氨酸神经毒性抑制剂,含有下述通式(I)所示的吡哆噻嗪衍生物或其药学上可接受的盐,以及下述通式(I)表示的吡哒嗪衍生物或其药学上可接受的盐 其中式中的符号具有以下各自的含义:环A:吡啶环; R 1,R 2,R 3,R 4和R 5可以相同或不同,各自表示氢原子或可以具有取代基或不存在的低级烷基,环烷基,烯基,芳基,羧基或低级烷氧基羰基, 条件是R2和R3可以一起形成可以具有氮原子作为另一个杂原子的含氮杂环基,可以与苯环稠合并且可以具有低级烷基作为取代基。