Quinazoline derivatives
    3.
    发明授权
    Quinazoline derivatives 失效
    喹唑啉衍生物

    公开(公告)号:US06706705B1

    公开(公告)日:2004-03-16

    申请号:US08809770

    申请日:1997-03-28

    IPC分类号: C07D23995

    CPC分类号: C07D239/95

    摘要: The present invention provides a new compound which shows slow and continuous blood pressure reducing action and is useful as an antihypertensive agent. The invention resides in a quinazoline derivative of the following formula (I) and its pharmaceutically acceptable salt: in which, each of R1 and R2 is H or an alkyl group of 1 to 6 carbon atoms, or R1 and R2 are combined to form an ethylene group; each of R3 and R4 is an alkyl group of 1 to 6 carbon atoms; R5 is a hydrogen atom, a hydroxyl group, an alkyl group of 1 to 6 carbon atoms, or an alkoxy group of 1 to 6 carbon atoms; each of R6 and R7 is a hydrogen atom or an alkyl group of 1 to 6 carbon atoms; and n is 2 or 3. The invention further resides in an antihypertensive agent containing the above compound.

    摘要翻译: 本发明提供了一种新的化合物,其显示缓慢且持续的减压作用,并且可用作抗高血压药。本发明涉及下式(I)的喹唑啉衍生物及其药学上可接受的盐:其中R 1和R 2是H或1至6个碳原子的烷基,或R 1和R 2结合形成亚乙基; R 3和R 4各自为1至6个碳原子的烷基; R 5为氢原子,羟基,碳原子数为1〜6的烷基或碳原子数1〜6的烷氧基, R 6和R 7各自为氢原子或1〜6个碳原子的烷基; 并且n为2或3.本发明还涉及含有上述化合物的抗高血压药。