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    • 6. 发明授权
    • CNS active substituted azetidinone compounds
    • CNS活性取代的氮杂环丁酮化合物
    • US4719207A
    • 1988-01-12
    • US747018
    • 1985-06-20
    • Toshinari TamuraMakoto YoshidaShin-ichi TsukamotoHidenori IwamotoMinoru YamamotoSoichi Kagami
    • Toshinari TamuraMakoto YoshidaShin-ichi TsukamotoHidenori IwamotoMinoru YamamotoSoichi Kagami
    • C07D205/08C07D205/085C07F7/10C07K5/097A61K31/415C07D403/12C07D403/14
    • C07K5/0821C07D205/08C07D205/085C07F7/10
    • Substituted azetidinone compounds are provided which have the formula: ##STR1## wherein one of R.sup.1 and R.sup.2 represents a substituted lower alkyl group, an azido group, an amino group, a lower acylamino group, a mercapto group or a lower alkylthio group and the other represents a hydrogen group, or, both represent hydrogen atoms or lower alkyl groups; R.sup.3 represents a hydrogen atom or a group shown by formula: ##STR2## (wherein X represents ##STR3## (wherein R.sup.5 represents a hydrogen atom or a lower alkyl group) and Y represents a hydroxy group, a lower alkoxy group, an amino group, a mono- or di-lower alkylamino group); R.sup.4 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group or a group shown by formula: --CH.sub.2 CO--A (wherein A represents an amino group or a group shown by formula: ##STR4## (wherein X and Y are as defined above), provided that when R.sup.1 and R.sup.2 are both hydrogen atoms, at least R.sup.4 represents a group other than a hydrogen atom and provided that either R.sup.3 or R.sup.4 represents a group other than a hydrogen atom. The compounds have strong CNS action.
    • 提供具有下式的取代的氮杂环丁酮化合物:其中R 1和R 2之一表示取代的低级烷基,叠氮基,氨基,低级酰氨基,巯基或低级烷硫基 另一个表示氢基团,或者都表示氢原子或低级烷基; R3表示氢原子或由下式表示的基团:其中X表示(其中R5表示氢原子或低级烷基),Y表示羟基,低级烷氧基,氨基 ,一或二低级烷基氨基); R 4表示氢原子,取代或未取代的低级烷基或由式-CH 2 CO-A(其中A表示氨基或由下式表示的基团:其中X和Y如上所定义) ),条件是当R 1和R 2均为氢原子时,至少R 4表示氢原子以外的基团,只要R 3或R 4表示除氢原子以外的基团,则该化合物具有强CNS作用。
    • 9. 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。