3(2H)Pyridazinone, process for its preparation and anti-allergic agent
containing it
    1.
    发明授权
    3(2H)Pyridazinone, process for its preparation and anti-allergic agent containing it 失效
    3(2H)哒嗪酮,其制备方法和含有它的抗过敏剂

    公开(公告)号:US4892947A

    公开(公告)日:1990-01-09

    申请号:US854521

    申请日:1986-04-22

    IPC分类号: A61K31/50 C07D237/22

    CPC分类号: A61K31/50 C07D237/22

    摘要: A 3(2H)pyridazinone of the formula: ##STR1## wherein R.sub.1 is hydrogen, methyl, C.sub.3 -C.sub.6 alkenyl, C.sub.5 or C.sub.6 cycloalkyl, benzyl, phenyl, --(CH.sub.2).sub.m CO.sub.2 R.sub.3 (wherein R.sub.3 is hydrogen or C.sub.1 -C.sub.5 alkyl, and m is an integer of from 1 to 4), --(CH.sub.2).sub.n A (wherein A is --OH or --N(R.sub.4).sub.2 wherein R.sub.4 is C.sub.1 -C.sub.3 alkyl, and n is an integer of from 2 to 6) or --CH.sub.2 CF.sub.3 ; R.sub.2 is chlorine or bromine; each of Y.sub.1 and Y.sub.2 which may be the same or different, is hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.8 alkenyl, halogen, --OR.sub.5 (wherein R.sub.5 is hydrogen, C.sub.1 -C.sub.8 alkyl or ##STR2## wherein q is an integer of from 1 to 4), --CO.sub.2 R.sub.6 (wherein R.sub.6 is hydrogen or C.sub.1 -C.sub.5 alkyl), --N(R.sub.7).sub.2 (wherein R.sub.7 is C.sub.1 -C.sub.4 alkyl) or --SR.sub.8 (wherein R.sub.8 is C.sub.1 -C.sub.4 alkyl); and Y.sub.3 is C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.8 alkenyl, halogen, --OR.sub.5 (wherein R.sub.5 is as defined above), --CO.sub.2 R.sub.6 (wherein R.sub.6 is as defined above), --N(R.sub.7).sub.2 (wherein R.sub.7 is as defined above) or --SR.sub.8 (wherein R.sub.8 is as defined above), or a pharmaceutically acceptable salt thereof.

    摘要翻译: 具有下式的3(2H)哒嗪酮:其中R 1是氢,甲基,C 3 -C 6烯基,C 5或C 6环烷基,苄基,苯基, - (CH 2)m CO 2 R 3(其中R 3是氢或C1- C5烷基,m为1〜4的整数), - (CH2)nA(其中A为-OH或-N(R4)2,其中R4为C1-C3烷基,n为2〜 6)或-CH 2 CF 3; R2是氯或溴; 可以相同或不同的Y 1和Y 2各自为氢,C 1 -C 5烷基,C 2 -C 8烯基,卤素,-OR 5(其中R 5为氢,C 1 -C 8烷基或其中q为 1至4),-CO 2 R 6(其中R 6是氢或C 1 -C 5烷基),-N(R 7)2(其中R 7是C 1 -C 4烷基)或-SR 8(其中R 8是C 1 -C 4烷基); 并且Y 3是C 1 -C 5烷基,C 2 -C 8烯基,卤素,-OR 5(其中R 5如上定义),-CO 2 R 6(其中R 6如上定义),-N(R 7)2(其中R 7如上所述 )或-SR 8(其中R8如上定义)或其药学上可接受的盐。

    Method for preparing 4-hydroxyphenylacetic acid
    2.
    发明授权
    Method for preparing 4-hydroxyphenylacetic acid 失效
    制备4-羟基苯基乙酸的方法

    公开(公告)号:US4412082A

    公开(公告)日:1983-10-25

    申请号:US353948

    申请日:1982-03-02

    CPC分类号: C07C255/00 C07C51/08

    摘要: A novel process for preparing 4-hydroxyphenylacetic acid which is useful as an intermediate for pharmaceutical is provided. A method for preparing 4-hydroxyphenylacetic acid comprising the steps of first reacting benzyl phenyl ether with formaldehyde and hydrogen chloride to form 4-benzyloxybenzyl chloride, second reacting the resultant 4-benzyloxybenzyl chloride with an alkali metal cyanide in at least one solvent selected from the group consisting of water and an organic solvent to form 4-benzyloxyphenylacetonitrile, and hydrolyzing the resultant 4-benzyloxyphenylacetonitrile in the presence of an acid catalyst.

    摘要翻译: 提供一种制备可用作药物中间体的4-羟基苯基乙酸的新方法。 一种制备4-羟基苯基乙酸的方法,包括以下步骤:首先使苄基苯基醚与甲醛和氯化氢反应形成4-苄氧基苄基氯,然后将所得4-苄氧基苄基氯与碱金属氰化物在至少一种选自 由水和有机溶剂组成的组,形成4-苄氧基苯基乙腈,并在酸催化剂存在下水解所得的4-苄氧基苯基乙腈。

    3(2H)pyridazinone, process for its preparation and anti-allergic agent
containing it
    3.
    发明授权
    3(2H)pyridazinone, process for its preparation and anti-allergic agent containing it 失效
    3(2H)吡咯烷酮,其制备方法和含有其的抗过敏剂

    公开(公告)号:US5098900A

    公开(公告)日:1992-03-24

    申请号:US180599

    申请日:1988-04-11

    摘要: A 3(2H)pyridazinone of the formula: ##STR1## wherein R.sub.1 is C.sub.2 -C.sub.5 alkyl; R.sub.2 is hydrogen, C.sub.1 -C.sub.3 alkyl, chlorine or bromine; R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; and each of Y.sub.1, Y.sub.2 and Y.sub.3 which may be the same or different, is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, halogen, --(CH.sub.2).sub.l A [wherein A is substituted amino of the formula --N(R.sub.4) (R.sub.5) (wherein each of R.sub.4 and R.sub.5 which may be the same or different, is C.sub.1 -C.sub.4 alkyl, or R.sub.4 and R.sub.5 together form C.sub.4 -C.sub.6 alkylene), morpholino, 4-R.sub.6 -piperazin-1-yl (wherein R.sub.6 is C.sub.1 -C.sub.3 alkyl) or --OR.sub.7 (wherein R.sub.7 is hydrogen or C.sub.1 -C.sub.3 alkyl), and l is an integer of 0 to 3], --OR.sub.8 [wherein R.sub.8 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.5 alkenyl, benzyl or --(CH.sub.2).sub.q --R.sub.9 [wherein R.sub.9 is CO.sub.2 R.sub.3 (wherein R.sub.3 is as defined above), --CONHR.sub.3 (wherein R.sub.3 is as defined above) or --CH.sub.2 OR.sub.7 (wherein R.sub.7 is as defined above), and q is an integer of 1 to 5]], --CO.sub.2 R.sub.3 (wherein R.sub.3 is as defined above), --CON(R.sub.10) (R.sub.11) [wherein each of R.sub.10 and R.sub.11 which may be the same or different, is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.5 alkenyl, or R.sub.10 and R.sub.11 together form C.sub.4 -C.sub.6 alkylene, --(CH.sub.2).sub.2 O(CH.sub.2).sub.2 -- or --(CH.sub.2).sub.2 N(R.sub.6)(CH.sub.2).sub.2 -- (wherein R.sub.6 is as defined above)], --CONH(CH.sub.2).sub.m A (wherein A is as defined above, and m is an integer of 2 to 4), --CH.dbd.CHCOR.sub.12 (wherein R.sub.12 is hydroxy, C.sub.1 -C.sub.4 alkoxy or --N(R.sub.13) (CH.sub.2).sub.n CO.sub.2 R.sub.3 (wherein R.sub.13 is hydrogen, C.sub.1 -C.sub.6 alkyl or cycloalkyl, R.sub.3 is as defined above, and n is an integer of 1 to 4)), --SR.sub.14 (wherein R.sub.14 is C.sub.1 -C.sub.4 alkyl), --CN or ##STR2## wherein R.sub.3 is as defined above), or two of Y.sub.1, Y.sub.2 and Y.sub.3 together form ##STR3## (wherein p is an integer of 1 or 2), and a pharmaceutically acceptable salt thereof.

    摘要翻译: 具有下式的3(2H)哒嗪酮:其中R 1是C 2 -C 5烷基; R2是氢,C1-C3烷基,氯或溴; R3是氢或C1-C4烷基; 并且可以相同或不同的Y 1,Y 2和Y 3各自为氢,C 1 -C 8烷基,C 2 -C 8烯基,卤素, - (CH 2)l A [其中A为式-N(R 4) (R 5)(其中可以相同或不同的R 4和R 5各自为C 1 -C 4烷基,或R 4和R 5一起形成C 4 -C 6亚烷基),吗啉代,4-R 6 - 哌嗪-1-基(其中R 6 是C 1 -C 3烷基)或-OR 7(其中R 7是氢或C 1 -C 3烷基),l是0-3的整数],-OR 8 [其中R8是氢,C1-C8烷基,C3-C5链烯基, 苄基或 - (CH 2)q -R 9 [其中R 9是CO 2 R 3(其中R 3如上定义),-CONHR 3(其中R 3如上定义)或-CH 2 OR 7(其中R 7如上所定义),q是整数 1〜5]],-CO 2 R 3(其中R 3如上定义),-CON(R 10)(R 11)[其中R 10和R 11可以相同或不同,为氢,C 1 -C 4烷基或C 3 (CH 2)2 O(CH 2)2 - 或 - (CH 2)2 N(R 6)(CH 2)2 - (其中R 6如上所定义)], - (C 1 -C 6)烷基,或者R 10和R 11一起形成C 1 -C 6亚烷基, CONH(CH2)mA(其中 在A中如上所定义,m为2〜4的整数),-CH = CHCOR 12(其中,R 12为羟基,C 1〜C 4烷氧基或-N(R 13)(CH 2)n CO 2 R 3(式中,R 13为氢, C6烷基或环烷基,R3如上所定义,n是1至4的整数)),-SR 14(其中R 14是C 1 -C 4烷基),-CN或其中R 3如上定义),或 Y1,Y2和Y3中的两个一起形成(其中p为1或2的整数)及其药学上可接受的盐。

    3(2H)pyridazinone, and anti-allergic agent containing it
    4.
    发明授权
    3(2H)pyridazinone, and anti-allergic agent containing it 失效
    3(2H)哒嗪酮和含有它的抗过敏剂

    公开(公告)号:US4783462A

    公开(公告)日:1988-11-08

    申请号:US833607

    申请日:1986-02-27

    摘要: A 3(2H)pyridazinone of the formula: ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl; R.sub.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, chlorine or bromine; A is --NR.sub.3 -- or --O--; X is --(CH.sub.2).sub.n --, --CH(OR.sub.4)--, --CO-- or a single bond; when X is --(CH.sub.2).sub.n -- or a single bond, B is --O--, --S--, --NH--, --OSO.sub.2 --, or --OCO-- or a single bond, when X is --CH(OR.sub.4)--, B is --O--, --S--, --NH-- or --OSO.sub.2 --, and when X is --CO--, B is --O-- or --S--; and each of Y.sub.1, Y.sub.2 and Y.sub.3 which may be the same or different, is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, halogen, ##STR2## or two of Y.sub.1, Y.sub.2 and Y.sub.3 together form ##STR3## and a pharmaceutically acceptable salt thereof.

    摘要翻译: 具有下式的3(2H)哒嗪酮:其中R 1是氢或C 1 -C 5烷基; R2是氢,C1-C8烷基,氯或溴; A是-NR 3 - 或-O-; X是 - (CH 2)n - , - CH(OR 4) - , - CO-或单键; 当X是 - (CH 2)n - 或单键时,当X是-CH(OR 4) - 时,B是-O - , - S - , - NH - , - OCOO-或-OCO-或单键 ,B是-O - , - S - , - NH-或-OSO 2 - ,当X是-CO-时,B是-O-或-S-; 可以相同或不同的Y 1,Y 2和Y 3各自为氢,C 1〜C 8烷基,C 2〜C 8烯基,卤素,R 3 CON(R 8)(R 9),COR 10, ,Y2和Y3一起形成及其药学上可接受的盐。