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    • 4. 发明授权
    • Phenylpiperazine derivatives and their acid addition salts
    • 苯基哌嗪衍生物及其酸加成盐
    • US4716161A
    • 1987-12-29
    • US719456
    • 1985-04-03
    • Harukazu FukamiRyoji KikumotoKenichiro NakaoIssei NittaShinya Inoue
    • Harukazu FukamiRyoji KikumotoKenichiro NakaoIssei NittaShinya Inoue
    • C07D239/96C07D285/32C07D491/04C07D491/056C07D513/04A61K31/54C07D417/06
    • C07D491/04C07D239/96C07D285/32C07D513/04
    • A phenylpiperazine derivative according to the present invention has the following general formula [I]: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen or alkoxy group having 1 to 3 carbon atoms, orR.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 together with carbon atoms to which they are attached form --O(CH.sub.2).sub.m O-- wherein m is an integer of 1 to 3, oreither R.sup.1 or R.sup.2 is amine residue selected from the group consisting of --NH.sub.2 , --NHSO.sub.2 CH.sub.3, --NHCOCH.sub.3 and --NHCONH.sub.2 and the other is hydrogen or alkoxy group of 1 to 3 carbon atoms and R.sup.3 is hydrogen;R.sup.4 and R.sup.5 are independently hydrogen or alkyl group of 1 to 3 carbon atoms;Y is --CO-- or --SO.sub.2 -- provided that at least one of R.sup.1 and R.sup.2 is not hydrogen when Y is --CO--; andn is an integer of 2 to 4.An acid addition salt of the phenylpiperazine derivative having the general formula [I] is included in the present invention. The phenylpiperazine derivative as well as its acid addition salt according to the present invention have the ability to reduce the blood pressure.
    • 根据本发明的苯基哌嗪衍生物具有以下通式[I]:其中R 1,R 2和R 3独立地是氢或具有1至3个碳原子的烷氧基,或者R 1和R 2或R 2和R 3 与其连接的碳原子一起形成-O(CH 2)m O-,其中m是1至3的整数,或者R 1或R 2是选自-NH 2,-NHSO 2 CH 3,-NHCOCH 3和 -NHCONH 2,另一个是1或3个碳原子的氢或烷氧基,R 3是氢; R4和R5独立地是氢或1〜3个碳原子的烷基; Y是-CO-或-SO 2 - ,条件是当Y是-CO-时,R 1和R 2中的至少一个不是氢; n为2〜4的整数。本发明包括具有通式[I]的苯基哌嗪衍生物的酸加成盐。 根据本发明的苯基哌嗪衍生物及其酸加成盐具有降低血压的能力。