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    • 1. 发明授权
    • Tetrahydropyrrolo{8 1,2-a{9 pyrazine-1(2H),4(3H)-diones
    • 四氢吡咯并[b 1,2-a {9吡嗪-1(2H),4(3H) - 二酮
    • US3920660A
    • 1975-11-18
    • US40824373
    • 1973-10-19
    • LEPETIT SPA
    • FONTANELLA LUIGIMARIANI LUIGI
    • C07D471/04C07D207/16C07D487/04C07D241/00
    • C07D487/04C07D207/16
    • 6,7,8,8A-Tetrahydropyrrolo(1,2-a)pyrazine-1(2H)-4(3H)-diones of the formula

      where R is hydrogen, lower alkyl, a phenyl or a benzyl radical, R1 is hydrogen or a lower alkyl radical, R2 is (a) a COR3 radical where R3 is selected from the group hydroxy, lower alkoxy, monoand di-lower alkylamino-lower alkoxy, amino, mono- and di-lower alkylamino, mono- and di-lower alkylamino-lower alkylamino, a phenylamino, hydroxyamino, a morpholine, pyrrolidine, piperidine, and piperazine ring which ring may also have 1 or 2 lower alkyl substituents; (b) a CH2R4 radical where R4 is selected from the group hydroxy, carboxy, carbo(lower alkoxy), lower acyloxy and carbamyloxy. The compounds of the invention are useful as C.N.S. depressants and in particular as tranquilizing agents.
    • 6,7,8,8-四氢吡咯并[1,2-a]吡嗪-1(2H)-4(3H) - 二氢ion LE LE LE LE LE LE LE LE LE(((((((( 其中R是氢,低级烷基,苯基或苄基,R 1是氢或低级烷基,R 2是(a)COR 3基团,其中R 3选自羟基,低级烷氧基, 和二低级烷基氨基 - 低级烷氧基,氨基,一 - 和二 - 低级烷基氨基,一 - 和二 - 低级烷基氨基 - 低级烷基氨基,苯基氨基,羟基氨基,吗啉,吡咯烷,哌啶和哌嗪环, 1或2个低级烷基取代基; (b)CH2R4基团,其中R4选自羟基,羧基,碳(低级烷氧基),低级酰氧基和氨基甲酰氧基。 本发明的化合物可用作C.N.S. 抑郁剂,特别是镇定剂。