• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention provides benzene derivatives which are leukotriene antagonists, formulations of those derivatives, and a method of using those derivatives for the treatment of conditions characterized by an excessive release of leukotrienes.
    公开号:SU1750420A3
    申请号:SU884355475
    申请日:1988-04-08
    公开日:1992-07-23
    发明作者:Дилейн Диллард Роберт；Элфрид Мккалла Дорис；Патрик Карр Фрэнсис
    申请人:Эли Лилли Энд Компани (Фирма)；
    IPC主号:
    专利说明:

    cl
    with
    This invention relates to a process for the preparation of new benzene derivatives of the general formula
    where R, R2 With With-alkyl;
    R 3 is hydrogen or hydroxy;
    And - WITH; O CHON; R - 5-tetrazolyl, cyano, which can be used as leukotriene antagonists.
    The aim of the invention is to develop a method for producing new benzene derivatives that exhibit higher activity.
    Example 1. 1- 2-Hydroxy-3-propyl-4- (4-CЈ- (1H tetrazol-5-yl) benzoyl phenoxy-methyl phenyl-ethanone.
    A. Preparation of 3-cyanobenzoyl chloride
    A mixture of 50 g of 3-cyanobenzoic acid and 100 ml of thionyl chloride was stirred overnight in 500 ml of methylene chloride. The solvent and excess thionyl chloride were removed in vacuo to give 55.3 g of the crude desired product, which was used without further purification.
    Calculated% C 58.03; H 2.44; N 8.46.
    CgH4ClNO
    Found,%: C 58.24; H 2.61; N 8.26.
    VI
    sl o
    4 Yu O
    S
    B. Preparation of 4- / 3 cytobenzoyl / anisole.
    In the atmosphere, nitrogen ..) lb, 5 g of 3 cyano benzoyl chloride was added to 80 ml of methylene chloride. Temperature brought
    to 0 ° C with ice and kept cold during the addition of 20 g of aluminum chloride in parts. 10.8 g of anisole in 20 ml of methylene chloride were added to the reaction solution. The temperature of the mixture was raised to room temperature and stirred overnight. The mixture was poured into a mixture of ice water and hydrochloric acid and extracted with ethyl acetate. The layers were separated, and the organic layer was washed with water, dried and concentrated in vacuo. The residue was recrystallized from a toluene / hexane mixture to which a small amount of ethyl acetate was added, to give 7.7 g of the title compound with a melting point of 85 88 ° C.
    Calculated,%: C 75.94; H 4.67; N 5.90.
    With C N02.
    Found,%: 75.88; 4.83; 5.99.
    C. Preparation of A- (3-cyano-benzoyl) -phenol.
    To a solution of 7 g of 4- (3-cyanobenzoyl) anisole in 75 ml of methylene chloride was added 11.8 g of aluminum chloride. The reaction mixture was stirred overnight at room temperature and then heated at reflux for 24 hours. The cooled reaction mixture was poured into a mixture of water with ice and hydrochloric acid and extracted with ethyl acetate. The layers were separated and the organic layer was washed with water, dried and concentrated in vacuo. The residue (crystallized from a mixture of toluene / hexane with a small amount of ethyl acetate, to obtain 5.3 g of the desired intermediate with a melting point of 153-157 ° C.
    Calculated,%: C 75.33; H A, On; N 6.27.
    C (() nlS2; found,%: 75.10; C, 07; 6.22.
    D, - Preparation of 1 - 2-hydroxy-3-propyl-4 (3-cyanobenzoyl) phenoxy methyl} phenyl ethanone
    1.9b g tert-butoxide real was stirred at room temperature
    under nitrogen in 50 ml of ethanol. Five grams of the intermediary from the example were added, after which 3.39 g of 4-acetyl-3 hydroxy-2-propyl-oenzyl chloride and 2.25 g of sodium iodide were added. The reaction mixture was stirred at room temperature for 4 days. 20U ml of water was added, the solution was acidified with hydrochloric acid, and after 2 hours, the resulting precipitate was removed by filtration. The solid was dissolved with ethyl acetate, dried and concentrated in vacuo. The residue was dissolved in toluene containing a small amount of ethyl aceta Ta and hexane was added. The resulting precipitate was removed by filtration and purified by high-performance liquid chromatography, using a 9: 1 toluene / / ethyl acetate mixture on a column of silica gel, to give 3.6 g of the desired intermediate with a melting point of 146-148 ° C.
    Calculated,%: C 75.72; H 5.61; N 3.38.
    CaoH23NO / f
    Found,%: 76.34; 5.79; 3.46.
    E. Preparation of 1 -G2-hydroxy-3 propyl-4-4-3- (1H-tetrazol-5-ylEbenzoyl phenoxy | methyl phenyl ethanone.
    A mixture of 3.5 nitrile and 13.8 g of azide tri-n-b utilolova was heated at reflux temperature in glyme for 3 days. The cooled reaction mixture was poured into acidified water and ice and stirred for 1 hour. The mixture was extracted with ethyl acetate, and the organic layer was washed with water, dried and concentrated in vacuo. Purification by high performance liquid chromatography on silica gel, eluted with a 9: 1 mixture of methylene chloride / methane oxide, to which 0.5% acetic acid was added, resulted in 2.5 g of the desired product with a melting point of 208 - 214 ° C. Recrystallization from ethyl acetate / hexane gave a substance with the following characteristics.
    Calculated,%: C 68.41; H 5.30; N 12.27.
    С2йН24Н404
    Found,%: 63.18; 5.4 "; 12.13.
    Examples 2-5. The following compounds were obtained from the corresponding nitriles according to the method of Example IE:
    2.1 - {2-hydroxy 3 propyl - i - 1 (- 4- (1H-tetrazol-5 yl) benzoyl phenoxy1 methyl phenyl C ethanol, yield, melting point 18 - 188 C.
    Calculated X: C bb, 1; H 5.30; N 12.27.
    c2eH24N4 °
    Found,%: b «, 38; 5.5b; 11.70.
    3.1- {2-hydroxy- 1- C4- {hydroxy G3 (1H-tetrazol-5-ylUphenyl J-methylj phenoxy) methyl -4-propylphenyl} ethanone, 75% yield, melting point
    152 - 155 ° C.
    Calculated,%: C 68.11; H 5.72; N 12.22.
    C26 IZ6N4 ° 4
    Found,%: 68.2k; 6.00; 11.92.
    4.1- 2-hydroxy-3-propyl-k- ({4 (1H-tetrazol-5-yl) phenoxy} phenoxy methyl) phenyl ethanone, yield 81%, melting point 177-180 C.
    Analysis for C25 K: Calculated: C 67.55; H 5 ;; N 12.60.
    Found: 67.67; 5.72; 12.38.
    5.1 - 2-hydroxy-3-propyl- (- (3- / 1H-tetrazol-5-yl / phenoxy-phenoxy} methyl) phenyl ethanone, yield 1%, melting point 60- / 0 ° C (glass).
    Dl analysis
    Calculated: C 67.55; H 5, AA; N 12.60.
    Found: 66.35; 5.72; 11, 9.
    Antagonism of leukotrienes was demonstrated using the following test procedure:
    Male Hartley guinea pigs weighing 200.- 50 g were euthanized by decapitation. Part of the terminal ileum was removed, the intestinal cavity was cleaned and the tissue was divided into 2.5 cm long segments. These samples were placed in a 10 ml tissue bath containing bicarbonate Krebs solution of the following composition in mol / l: KC1 4,6,, 2H20, 1.2, KN2RC, 1.2, MgS04, 7H20, 1,., NaCl 118.2 NaHC03, 24.8, and dextrose, 10.0. The bath fluid was maintained at a temperature of 37 ° C and aerated with 95% oxygen and 5% C02. In addition, a buffer solution containing 1.10 M atropine was added to reduce the spontaneous activity of the samples.
    Isometric measurements were made t
    using a power mix transducer
    1750 t20

    sheni Grass FT03C and were recorded on the Grass polygraph as a change in force in grams. Oipa tissue was applied passively to O, 5 g forces. After a period of equilibration, separate submaximal control responses to pure LTD were obtained. After five minutes of ileal exposure to the experimental drug, the LTD control concentration was added to the tissue bath. The reaction of the response of the ileum to LTD in the presence of a drug was compared with the response of the response in the absence of a drug. Different degrees of LTD antagonization were obtained using 2 - k different concentrations of the experimental compound on the ileum sample. Using linear regression, the antagonist concentration required for 50% inhibition of LTD4 (-log) was interpolated from these data.
    The percentage of inhibition of LTD due to contractions of the ileum is presented in the table.
    The known analogs in structure and purpose have an inhibitory effect of 11–100% at a concentration of 3 “Yu bmol / l and 15–92% at LN mol / l, i.e. at a higher concentration, while their negative logarithm (-log 156) is in the range of 5.7 - 7.2 versus 7.08 - 8.58 for the compounds obtained according to the proposed method. The compounds of the formula belong to the average toxicity group of the compounds and are more active antagonists of LTD, 4eM known analogs.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of obtaining benzene derivatives of the general formula
    R, C
    SNO
    TO
    (
    RЈ is C, -C6 alkyl; R3 is hydrogen or hydroxy; A - CO, O, SNON;
    7 175СЙ20
    R - 5 tetrapzolyl, cyano,
    characterized in that the compound of the general formula
    About II
    BUT R2
    where X is haloyl;
    R ,, R have the indicated meanings, where R, R have the indicated meanings,
    are reacted with the compound, or, if necessary, by a mixture of the general formula
    Note. Negative logarithm of concentration giving
    L0% inhibition LTD.
    BUT-AO-A.
    - / I- /
    CM
    where a has the specified value, the resulting nitrile of the General formula
    t
      CHjjH h
    A-QL
    CN
    BUT R,
    work as a tri-n-butyltin azide.
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    同族专利:
    公开号 | 公开日
    CN88101940A|1988-11-09|
    PH25572A|1991-08-08|
    IE881061L|1988-10-13|
    GR3006973T3|1993-06-30|
    DK188488A|1988-10-14|
    AU1433388A|1988-10-13|
    DE3875782T2|1993-04-01|
    AR245705A1|1994-02-28|
    IL85989A|1993-08-18|
    EG19001A|1994-04-30|
    DE3875782D1|1992-12-17|
    ES2045110T3|1994-01-16|
    ZA882421B|1989-12-27|
    JPS63258831A|1988-10-26|
    KR880012521A|1988-11-28|
    AU607203B2|1991-02-28|
    CN1012433B|1991-04-24|
    DK188488D0|1988-04-07|
    HUT53358A|1990-10-28|
    NZ224143A|1990-02-26|
    US4853398A|1989-08-01|
    IE61883B1|1994-11-30|
    PT87181B|1992-07-31|
    PT87181A|1988-05-01|
    EP0288189B1|1992-11-11|
    AT82273T|1992-11-15|
    HU202505B|1991-03-28|
    CA1329613C|1994-05-17|
    EP0288189A1|1988-10-26|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US07/038,254|US4853398A|1987-04-13|1987-04-13|Leukotriene antagonists and use thereas|
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