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    • 5. 发明授权
    • 5,6,7,8-tetrahydro-imidazo[1,5-α]pyrazine derivatives
    • 5,6,7,8-四氢 - 咪唑并[1,5-a]吡嗪衍生物
    • US08188082B2
    • 2012-05-29
    • US12520693
    • 2007-12-20
    • Hamed AissaouiChristoph BossMarkus GudeRaif KobersteinThierry Sifferien
    • Hamed AissaouiChristoph BossMarkus GudeRaif KobersteinThierry Sifferien
    • A61K31/495
    • C07D487/04
    • The invention relates to 5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine derivatives of formula (I), wherein X represents CH2 or O; R1 represents a phenyl group, which group is independently mono-, di-, or tri-substituted wherein the substituents are independently selected from the group consisting of (C1-4)alkyl, (C1-4)alkoxy, halogen, cyano, trifluoromethoxy and trifluoromethyl; R2 represents (C1-4)alkyl, (C1-4)alkoxy, (C2-4)alkenyl, halogen, cyano, hydroxymethyl, trifluoromethyl, C(O)NR5R6 or cyclopropyl; R3 represents (C1-4)alkyl, (C1-4)alkoxy-methyl or halogen; R4 represents (C1-4)alkyl; R5 represents hydrogen or (C1-4)alkyl; and R6 represents hydrogen or (C1-4)alkyl. The invention also relates to pharmaceutically acceptable salts of such compounds; and to the use of such compounds as medicaments; especially as orexin receptor antagonists.
    • 本发明涉及式(I)的5,6,7,8-四氢 - 咪唑并[1,5-a]吡嗪衍生物,其中X表示CH 2或O; R 1表示苯基,该基团独立地是单 - ,二 - 或三 - 取代,其中取代基独立地选自(C 1-4)烷基,(C 1-4)烷氧基,卤素,氰基,三氟甲氧基 和三氟甲基; R 2表示(C 1-4)烷基,(C 1-4)烷氧基,(C 2-4)烯基,卤素,氰基,羟甲基,三氟甲基,C(O)NR 5 R 6或环丙基; R 3表示(C 1-4)烷基,(C 1-4)烷氧基 - 甲基或卤素; R 4表示(C 1-4)烷基; R5代表氢或(C1-4)烷基; 并且R 6表示氢或(C 1-4)烷基。 本发明还涉及这些化合物的药学上可接受的盐; 以及使用这些化合物作为药物; 特别是作为食欲素受体拮抗剂。