(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl-alkyl-(2,
9-disubstituted-4H-pyrido[1,2-a]pyrimidin-4-one) derivatives
    1.
    发明授权
    (6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl-alkyl-(2, 9-disubstituted-4H-pyrido[1,2-a]pyrimidin-4-one) derivatives 失效
    (6-氟-1,2-苯并异恶唑-3-基)-1-哌啶基 - 烷基 - (2,9-二取代-4H-吡啶并[1,2-a]嘧啶-4-酮)衍生物

    公开(公告)号:US5482943A

    公开(公告)日:1996-01-09

    申请号:US676681

    申请日:1991-03-28

    CPC分类号: C07D471/04

    摘要: Novel 2,9-disubstituted-4H-pyrido[1,2-a]pyrimidin-4-ones having the formula ##STR1## the pharmaceutically acceptable acid addition salts thereof, and the stereochemically isomeric forms thereof, whereinAlk represents C.sub.1-4 alkanediyl,D is a bicyclic heterocycle of formula ##STR2## wherein R.sup.1 represents C.sub.1-4 alkyl, hydroxyC.sub.1-4 alkyl, carboxaldehyde, carboxyl, C.sub.1-10 alkylcarbonyloxyC.sub.1-4 alkyl; each R.sup.2 represents hydrogen or C.sub.1-4 alkyl; R.sup.3 represents C.sub.1-4 alkyl, hydroxyC.sub.1-4 alkyl or methyl substituted with phenyl, 5-methyl-2-furanyl or 3-pyridinyl; and R.sup.4 represents C.sub.1-3 alkyl, phenyl, 5-methyl-2-furanyl or 3-pyridinyl.

    摘要翻译: 具有下式的新的2,9-二取代-4H-吡啶并[1,2-a]嘧啶-4-酮其(I)其药学上可接受的酸加成盐及其立体化学异构形式,其中Alk表示C1 (a)其中R 1表示C 1-4烷基,羟基C 1-4烷基,羧醛,羧基,C 1-10烷基羰基氧基C 1-4烷基,C 1-10烷基羰基氧基,C 1-4烷基, 每个R 2表示氢或C 1-4烷基; R 3表示C 1-4烷基,羟基C 1-4烷基或被苯基,5-甲基-2-呋喃基或3-吡啶基取代的甲基; R 4表示C 1-3烷基,苯基,5-甲基-2-呋喃基或3-吡啶基。