JPS588015A - Cardiotonic drug - Google Patents

Cardiotonic drug

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Publication number
JPS588015A
JPS588015A JP10530381A JP10530381A JPS588015A JP S588015 A JPS588015 A JP S588015A JP 10530381 A JP10530381 A JP 10530381A JP 10530381 A JP10530381 A JP 10530381A JP S588015 A JPS588015 A JP S588015A
Authority
JP
Japan
Prior art keywords
pyridazinone
dihydro
group
drug
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10530381A
Other languages
Japanese (ja)
Inventor
Hiromi Okujima
弘巳 奥島
Akihiro Narimatsu
明博 成松
Rikizo Furuya
力三 古矢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP10530381A priority Critical patent/JPS588015A/en
Publication of JPS588015A publication Critical patent/JPS588015A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:A cardiotonic drug capable of exhibiting powerful cardiac action by its small amount, comprising a specific pyridazinone derivarive or its salt as an active ingredient. CONSTITUTION:The titled drug comprisinga pyridazinone derivative shown by the formulaIor formula II (X and Y are H, halogen, alkoxy, cyano, etc.) or its salt as an active ingredient. It is pharmaceutically manufactured into an oral drug such as dust, tablet, etc. or a parenteral agent such as suppository, injection, etc., and used as a cardiotonic drug. For example, in the case of oral medication a daily dose is about 0.1-10mg per kg wt. The compound shown by the formula Ior II, for example, is obtained by reacting a compound shown by the formula III with maleic anhydride or succinic anhydride, followed by reacting it with hydrazine.

Description

【発明の詳細な説明】 本発明は強心剤に関し、さらに詳しくはビリダジノン誘
導体又はその塩類を含む強心剤に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cardiotonic agent, and more particularly to a cardiotonic agent containing a pyridazinone derivative or a salt thereof.

強心剤は心111に直接作用してその収縮力を強める作
用を有し、従来、種々の薬剤が心不全の治療に利用され
ている。
Cardiotropes have the effect of directly acting on the heart 111 to strengthen its contractile force, and various drugs have been used to treat heart failure.

しかしながら、これらの強心剤は、厳密な管理下に投与
されても、最期間投与し九場合には胃腸障害、肝機能障
害、不整脈の発現勢の間作用が生じゃすく表ることもあ
る。
However, even if these inotropic agents are administered under strict control, they may cause serious side effects such as gastrointestinal disorders, liver dysfunction, and arrhythmia after the final period of administration.

本発明者らは、強心剤として活性が高く、したがって、
少ない投与量で強心作用が発揮できるような化合物の探
索を行ない、本発明に到達し九。
The inventors believe that it is highly active as a cardiotonic agent and therefore
The present invention was achieved through a search for a compound that can exert cardiotonic effects with a small dose.

すなわち本発明は、一般式(1)又紘■(I)    
    OD (式中、X、Yは水素原子、ハロゲン原子、アルコキシ
基、シアノ基、アミノ基、アシルアミノ基、ニトロ基、
トリフルオロメチル基、カルボアミド基又は炭素数/−
40低級アルキル基な表わす、 で示されるビリダジノン誘導体又はその塩類を含む強心
剤にある。
That is, the present invention provides general formula (1) or Hiro (I)
OD (wherein X and Y are a hydrogen atom, a halogen atom, an alkoxy group, a cyano group, an amino group, an acylamino group, a nitro group,
Trifluoromethyl group, carboxamide group or number of carbon atoms/-
A cardiotonic agent containing a pyridazinone derivative or a salt thereof, represented by a 40 lower alkyl group.

以下本発明の詳細な説明する。The present invention will be explained in detail below.

本発明におけるピリダジノン誘導体は、従来。The pyridazinone derivative in the present invention is a conventional pyridazinone derivative.

知られている一般的な合成法で容品に合成できる。It can be synthesized into a container using known general synthesis methods.

本発明におけるビリダジノン誘導体を例示すると次の化
合物が挙けられる。
Examples of the pyridazinone derivatives in the present invention include the following compounds.

6−(弘−クロロフェニル)−,7−(コH)−ビリダ
ジノン 6−(3−クロロフェニル)−j−(コH)6−(コー
クロロフェニル)−J−(JH)−ピリダジノ/ 6−(デーフルオロフェニル)−,7−(JH)−ピリ
ダジノ/ 4−(lI−ブロモフェニル)−3−(コH)−ビリダ
ジノン 6−(デーニトロフェニル)−J−(JH)−ビリダジ
ノン 6−(デーアミノフェニル)−,7−(コH)−ピリダ
ジノン 6−(参−シアノフェニル)−3−(コH)−ビリダジ
ノン b−(参−17フルオロメチルフエニル)−3−(コ■
)−ビリダジノン A−(、?−ト’Jフルオロメチルフェニル)−3−(
コH)−ビリダジノン 6−(コートリフルオロメチルフェニ# ) −J−(
コH)−ビリダジノン A −(lI−7セチルアミノフエニル)−y−(,2
H)−ビリダジノン 6−(デーメチルフェニル)−J−(コH)−ビリダジ
ノン 6−(3−メチルフェニル)−、?−(コH)−ピリダ
ジノン 6−(2−メチルフェニル)−,7−(コH)−ビリダ
ジノン 6−(デーメトキシフェニル)−、?−(コH)−ビリ
ダジノン 4−(II−チオメトキシフェニル)−3−(2H)−
ビリダジノン 6−(コーメチルーヂーメトキシフェニル)−3−(コ
H)−ビリダジノン 4−(J−メチルーダ−ニトロフェニル)−3−(コ■
)−ビリダジノン A−(2−メチル−タートリフルオロメチルフェニル)
−、?−(2m)−ビリダジノンA−(J−メチルーダ
−シアノフェニル)−J−(2′Fl)−ビリダジノン 6−(コーメチルー亭−アセチルアミノフェニル)−、
?−(2a)−ビリダジノン6−(コ、ゲージクロロフ
ェニル)−y−(2H)−ビリダジノン !−(J−メチルーダ−フルオロフェニル)−3−(コ
H)−ビリダジノン q、 z −ジヒドロ−X−(#−クロロフェニル)−
3−(コH)−ビリダジノン q、z−ジヒドロ−4−(J−クロロフェニル)−3−
(コE)−ビリダジノン 事、2−ジヒドロ−6−(コークロロフェニル)−3−
(コH)−ビリダジノン ダ、t−ジヒドロ−6−(参−フルオロフェニル)−J
−(コ■)−ビリダジノン 参、s−ジヒドロ−6−(参−ブロモフェニル)−,7
−(,2u)−ピリダジノン q、z−ジヒドロ−!−($−二トロフェニル)−3−
(−■)−ビリダジノン チ、!−ジヒドロ−1,−(+−アミノフェニル)−,
7−(2a)−ビリダジノン ダ、!−ジヒドロ−6−(デーシアノフェニル)−3−
(コ■)−ビリダジノン ダ、j−ジヒドロ−4−(+−トリフェニルフェニル)
−J−(2i)−ビリダジノンダウ3−ジヒドロ−4−
(j−)リフェニルフェニル)−3−(コu)−ピリダ
ジノン亭、j−ジヒドロ−6−(コートリフェニルフェ
ニル)−s−(am)−ビリダジノン亭、5−ジヒドロ
−4−(q−アセチルアミノフェニル)−j−(JH)
−ピリダジノンa、S−ジヒドロ−!−(41−メチル
フェニル)−3−(コH)−ビリダジノン ダ、!−ジヒドロ−!−(3−メチルフェニル)−J−
(コR)−ビリダジノン *、j −ジヒドロ−4−(コーメチルフェニル)−3
−(−■)−ビリダジノン a、z−ジヒドロ−4−(f−メトキシフェニル)−,
7−(−H)−ビリダジノン ダ、!−ジヒドロ−a −(q−チオメトキシフェニル
)−s−(JH)−ビリダジノンダ、!−ジヒドロ−6
−(コーメチルー亭−メトキシフェニル)−J−(コT
1)−ビリダジノン ダ、!−ジヒドロ−6−(コーメチルー亭−二トロフェ
ニル)−s−(JH)−ビリ1ジ/ンダ、!−レジヒド
ロ−6−コーメチルー亭−トリフルオーメチルフェニル
)−s−(aH)−ビリダジノン 参、よ−ジヒドロ−4−(コーメチルーダーシアノフェ
ニル)−、?−(コH)−ピリダジノンダ、!−ジヒド
ロ−6−(コーメチ、ルーダ−アセチルアミノフェニル
)−,7−(コH)−ビリダジノン 41、t−12!)’ロー6−(コ、亭−ジクロ謬7エ
二ル>−s−<コH)−ビリダジノン ダ、j−ジヒドロ−6−(J−メチルーダ−フルオロフ
ェニル>−y−<コII)−ビリダジノン 得られるピリダジノン譚導体は、必要に応じ常法により
、薬学的に許容し得る塩類、九とえば塩酸塩、乳酸塩、
シェフ酸塩とすることができる。
6-(Hiro-chlorophenyl)-,7-(coH)-pyridazinone6-(3-chlorophenyl)-j-(coH)6-(cochlorophenyl)-J-(JH)-pyridazinone/6-(D fluorophenyl)-,7-(JH)-pyridazino/4-(lI-bromophenyl)-3-(coH)-pyridazinone 6-(denitrophenyl)-J-(JH)-pyridazinone 6-(deamino phenyl)-,7-(coH)-pyridazinone 6-(3-cyanophenyl)-3-(coH)-pyridazinone b-(7-17fluoromethylphenyl)-3-(co■
)-pyridazinone A-(,?-t'J fluoromethylphenyl)-3-(
CoH)-pyridazinone 6-(Co-trifluoromethylphenylphenyl)-J-(
CoH)-pyridazinone A-(lI-7cetylaminophenyl)-y-(,2
H)-pyridazinone 6-(demethylphenyl)-J-(coH)-pyridazinone 6-(3-methylphenyl)-,? -(CoH)-pyridazinone 6-(2-methylphenyl)-, 7-(coH)-pyridazinone 6-(demethoxyphenyl)-, ? -(coH)-pyridazinone 4-(II-thiomethoxyphenyl)-3-(2H)-
pyridazinone 6-(comethyl-dimethoxyphenyl)-3-(coH)-pyridazinone 4-(J-methyl-d-nitrophenyl)-3-(co■
)-pyridazinone A-(2-methyl-tertrifluoromethylphenyl)
-,? -(2m)-pyridazinone A-(J-methyluda-cyanophenyl)-J-(2'Fl)-pyridazinone 6-(komethyl-tei-acetylaminophenyl)-,
? -(2a)-Viridazinone 6-(co, gauge chlorophenyl)-y-(2H)-Viridazinone! -(J-methyluda-fluorophenyl)-3-(coH)-pyridazinone q, z -dihydro-X-(#-chlorophenyl)-
3-(coH)-pyridazinone q,z-dihydro-4-(J-chlorophenyl)-3-
(coE)-pyridazinone, 2-dihydro-6-(cochlorophenyl)-3-
(H)-pyridazinonda, t-dihydro-6-(fluorophenyl)-J
-(CO)-pyridazinone, s-dihydro-6-(bromophenyl)-,7
-(,2u)-pyridazinone q,z-dihydro-! -($-nitrophenyl)-3-
(-■)-Viridazinonchi,! -dihydro-1,-(+-aminophenyl)-,
7-(2a)-Viridazinonda,! -dihydro-6-(decyanophenyl)-3-
(■)-Biridazinonda, j-dihydro-4-(+-triphenylphenyl)
-J-(2i)-pyridazinone dau-3-dihydro-4-
(j-)liphenylphenyl)-3-(cou)-pyridazinone, j-dihydro-6-(cotriphenylphenyl)-s-(am)-pyridazinone, 5-dihydro-4-(q- acetylaminophenyl)-j-(JH)
-pyridazinone a, S-dihydro-! -(41-methylphenyl)-3-(coH)-pyridazinonda,! -dihydro-! -(3-methylphenyl)-J-
(coR)-pyridazinone*, j-dihydro-4-(comethylphenyl)-3
-(-■)-pyridazinone a,z-dihydro-4-(f-methoxyphenyl)-,
7-(-H)-Viridazinonda,! -dihydro-a-(q-thiomethoxyphenyl)-s-(JH)-pyridazinonda,! -dihydro-6
-(Komethyl-tei-methoxyphenyl)-J-(KoT
1)-Viridazinonda,! -dihydro-6-(komethyl-tei-nitrophenyl)-s-(JH)-bili1di/nda,! -Redihydro-6-comethyl-tei-trifluoromethylphenyl)-s-(aH)-pyridazinone, yo-dihydro-4-(comethyl-dercyanophenyl)-,? -(koH)-pyridazinonda! -dihydro-6-(comethyl,ruder-acetylaminophenyl)-,7-(coH)-pyridazinone 41, t-12! )'Rho 6-(Co, Tei-dichloroenyl>-s-<CoH)-pyridazinonda, j-dihydro-6-(J-methyluda-fluorophenyl>-y-<CoII)-pyridazinone The obtained pyridazinone tan conductor may be treated with pharmaceutically acceptable salts, such as hydrochloride, lactate,
It can be a chef's acid salt.

本発明に係る強心剤は、経口、非鰻口の適蟲な投与方法
によシ投与することができる。
The cardiotonic agent according to the present invention can be administered by any suitable administration method, such as oral or non-oral administration.

本発明医薬が提供される形態としては、経口投与用には
例えば散剤、躯粒、錠剤、糖衣錠、ビル、カプセル、液
−剤等、非経口投与用Kit例えば廃剤、懸濁液、箪剤
、乳剤、アンプルおよび注射液岬が挙けられる。勿論こ
れらを組み合よることができる。
The pharmaceutical of the present invention may be provided in a form for oral administration, such as powders, granules, tablets, sugar-coated tablets, tablets, capsules, liquid preparations, etc., and for parenteral administration, such as waste, suspension, and tablets. , emulsions, ampoules and injection capes. Of course, these can be combined.

本発明の強心薬の投与量は、年令、性別、体重、感受性
差、投与方法、投与の時期・間隔、病状の11度、体調
、医薬製剤の性質・調剤・種類、有効成分の種類などを
考慮して、医師により決定される。
The dosage of the cardiotonic drug of the present invention is determined by factors such as age, sex, body weight, sensitivity difference, administration method, administration timing/interval, degree of illness, physical condition, nature/preparation/type of pharmaceutical preparation, type of active ingredient, etc. determined by the doctor, taking into account

例えば、経口投与の場合、体重tKti日條シ、0、 
/ = / OIg/ ’111度の投与量が選ばれる
が、もちろんこれに制限されまい。
For example, in the case of oral administration, body weight tKti, 0,
/ = / OIg / '111 degrees is chosen, but of course it is not limited to this.

以下、実施例によシ本発明をさらに詳#に説明する。Hereinafter, the present invention will be explained in more detail with reference to Examples.

参考例1 6−フェニル−3−(コH)−ビリダジノンの合成1ベ
ンゼン10oymに無水マレイン酸l!?と塩化アルミ
ニウム!二iを加えて70℃7時間フリーデルタラック
反応を行なった。ついで水toowlさらに/1%塩酸
水溶i[コ4dを加えた後酢酸エチルで抽出した。抽出
物を無水硫酸ナトリウムで乾燥し約166mjで濃縮し
てからノルマルへブタン約azod添加すると結晶が析
出した。r取した徒乾燥し粗II/−ベンゾイルアクリ
ル酸/l、、2 )を得た。このβ−ベンゾイルアクリ
ル酸/、?4y−にメタノール10−を加えチオニルク
ロライドo、ttystヲさらに加え室温下でエステル
化を行なった。濃縮を打力い水tepwJとヒドラジン
水和物/、Jj)を加えて/、j時間還流した。ついで
室温まで冷却しアンモニア水で中和を行ない結晶をf取
し乾燥し/、コ9fの6−フェニル−3−(コm)−ビ
リダジノンを得た。
Reference Example 1 Synthesis of 6-phenyl-3-(coH)-pyridazinone 1 10 oym of benzene and 1 maleic anhydride! ? and aluminum chloride! A Friedel-Track reaction was carried out at 70° C. for 7 hours. Then, too much water and 4d of 1% aqueous hydrochloric acid were added, followed by extraction with ethyl acetate. The extract was dried over anhydrous sodium sulfate, concentrated to about 166 mJ, and about azod of butane was added to normal to precipitate crystals. The crude II/-benzoyl acrylic acid/l, 2) was obtained by drying. This β-benzoyl acrylic acid/? Methanol 10- was added to 4y-, and thionyl chloride o and ttyst were further added to carry out esterification at room temperature. After concentration, water (tepwJ) and hydrazine hydrate (Jj) were added, and the mixture was refluxed for J hours. The mixture was then cooled to room temperature, neutralized with aqueous ammonia, and the crystals were collected and dried to obtain 6-phenyl-3-(com)-pyridazinone (9f).

参考例コ 水マレイン酸コ、j?と塩化アルミニウムt、!r )
を加えて70℃/時間フリーデルクラフッ叉応を行なっ
た。ついで水17−と濃塩酸+、s xlを添加しaO
分攪拌した後酢酸エチルで抽出した。
Reference example ko water maleic acid ko, j? and aluminum chloride,! r)
was added and Friedel-Craft reaction was carried out at 70°C/hour. Next, water 17- and concentrated hydrochloric acid +, sxl were added and aO
After stirring for several minutes, the mixture was extracted with ethyl acetate.

抽出物を無水硫酸す) Qラムで乾燥し約sodに壕で
濃縮しそこに100ydのノルマルへブタンを加え結晶
を析出させ析出した結晶をP取乾燥しlI製のβ−(ダ
ークロロペンゾイル)アクリル酸3,4! )を得た。
The extract was dried with anhydrous sulfuric acid) and concentrated in a trench to about sod, and 100 yd of n-butane was added thereto to precipitate crystals. Acrylic acid 3,4! ) was obtained.

   −−この β−(亭−クロロベンゾイル)アクリル酸1.04PK
メタノール!−を添加し、チオニルク冒うイドO,ダJ
−をさらに加えて室温下でエステル化を行なった。濃縮
の抜水t、zwlとヒドラジン水和物0,43fを加え
て/、3時間還流しえ、ついで室温まで冷却しアンモニ
ア水で中和を行ない結晶なr取乾燥し0.tダ参POA
−(ダークロロフェニル>−S−<−H)−ビリダジノ
ンを得た。
--This β-(tei-chlorobenzoyl)acrylic acid 1.04PK
methanol! -, which affects thionylcoid O, daJ
- was further added to carry out esterification at room temperature. Add the concentrated water, zwl, and 0.43f of hydrazine hydrate, reflux for 3 hours, cool to room temperature, neutralize with aqueous ammonia, remove crystals, and dry. tdasan POA
-(Darkchlorophenyl>-S-<-H)-pyridazinone was obtained.

参考例3 6−(ダーアセチルアミノフェニル)−S−(,2H)
−ビリダジノンの合成ニジメチルフォルムアミドtwl
に塩化アルミニウム約jダ?を添加し40”〜700に
加熱し!、ダ/lのアセチルアミノベンゼンを加え九後
、J、f3fの無水マレイン酸を加えてフリーデルクラ
フッ反応を7θ℃/時間行なった。
Reference example 3 6-(deracetylaminophenyl)-S-(,2H)
-Synthesis of pyridazinone dimethylformamide twl
About aluminum chloride? was added and heated to 40'' to 700℃, and after addition of acetylaminobenzene of da/l, maleic anhydride of J, f3f was added and a Friedel-Crauff reaction was carried out at 7θ°C/hour.

この反応を氷水s o owlに注ぎ更に濃塩酸!rj
mを加えてよく攪拌し九發結晶なP取し乾燥してり、コ
Jllfの粗製のβ−(亭−アセチアミノベンゾイル)
アクリル酸を得た。この粗製0β−(亭−アセチルアミ
ノベンゾイル)アタリル酸コ、t fにメタノールlo
〜/コー添加し、チオニルクpライドo、?コー加えて
エステル化を行ない濃縮した。そこにエタノール7−と
水グーを加え更にヒドラジン水和物1.ダを添加してi
、s時間還流した。その抜水Jσ〜JO11dを添加し
/亭哄のアンモニア水で中和の後析出した結晶をf取し
乾燥し/、l!Ifの6−(ダーアセチルアミノフェニ
ル)−、?−(コa)−ビリダジノンを得た。
Pour this reaction into ice water and add concentrated hydrochloric acid! rj
Add m and stir well, remove crystalline P, dry, and prepare crude β-(tei-acetyaminobenzoyl).
Acrylic acid was obtained. This crude 0β-(tei-acetylaminobenzoyl)atalylic acid was added to tf in methanol.
~/co addition, thionylchloride o, ? The mixture was esterified and concentrated. Add ethanol 7- and water goo to it, and then add hydrazine hydrate 1. Add da
, refluxed for s hours. After adding the drained water Jσ~JO11d and neutralizing with aqueous ammonia, the precipitated crystals were taken out and dried/, l! If 6-(dacetylaminophenyl)-,? -(Coa)-pyridazinone was obtained.

参考例ゲ A−(2−メチル−参−メチルフェニル)−3−(コH
)−ビリダジノンの合成33−メチル−アニソール、2
j−に無水マレイン酸7.slを加え塩化アルミニウム
一コ、j51加えフリーゾルタラフッ反応を室温下30
分間行なう。
Reference example GeA-(2-methyl-methylphenyl)-3-(koH
)-Synthesis of pyridazinone 33-methyl-anisole, 2
j- Maleic anhydride 7. Add sl, add one aluminum chloride, add j51, and carry out the free-solat fluff reaction at room temperature for 30 minutes.
Do this for minutes.

ついで反応物を氷水、? o odに注ぎさらに濃塩酸
3oWLlを添加し攪拌し丸。ノルマルへブタン/ z
 owlを添加し析出している結晶をr取し乾燥して粗
製のβ−(コーメチルーダーメトキシーベンゾイル)ア
クリルII/デ、をンを得た。
Then add the reactants to ice water. Add 3oWLl of concentrated hydrochloric acid and stir. Normal hebutane/z
Owl was added, and the precipitated crystals were collected and dried to obtain crude β-(co-methyl-dermethoxybenzoyl)acrylic II/de-2.

参考例! ≠、よ−ジヒドロ−!−(41−フルオロフェニル)−
、?−(!H)−ビリダジノンの合成ニジメチルフォル
ムアミド1081に塩化アルミニウム63?を加えてか
らり0℃に加熱しフルオロベンゾイル、1 )を加えた
後無水コハク酸に、l fを添加してフリーデルクラフ
ッ反応を70′CI時間行なった。反応物を氷水jfQ
OwlK注ぎさらに濃塩酸60yJを加えて撹拌を行な
い結晶を析出させた。析出した結晶をr取して乾燥しダ
、q4 )のβ−(4I−フルオロベンゾイル)プロピ
:ryllt得だ。とのβ−(lI−フルオロペンソイ
ル)プロピオン酸o、qt fK*10dとエタノール
、7 mlを加えヒドラジン水和物t)、2! ffを
加えて6時間還流した。冷却の抜水30m1を添加し析
出した結晶をr取して0.tllt fのり、!−レジ
ヒドロ−6−+−フルオロフェニル)−3−(−H)−
ビリダジノンを得た。
Reference example! ≠, Yo-dihydro-! -(41-fluorophenyl)-
,? -(!H)-Synthesis of pyridazinone Nidimethylformamide 1081 and aluminum chloride 63? After heating to 0° C. and adding fluorobenzoyl (1), lf was added to the succinic anhydride and a Friedel-Crauff reaction was carried out for 70 CI hours. Pour the reactant into ice water
After pouring OwlK, 60 yJ of concentrated hydrochloric acid was added and stirred to precipitate crystals. The precipitated crystals were collected and dried to obtain β-(4I-fluorobenzoyl)propylene (q4). Add β-(lI-fluoropensoyl)propionic acid o, qt fK*10d and 7 ml of ethanol to prepare hydrazine hydrate t), 2! ff was added and the mixture was refluxed for 6 hours. Add 30 ml of drained water for cooling, collect the precipitated crystals, and collect 30 ml of water. tllt f-nori! -rehydro-6-+-fluorophenyl)-3-(-H)-
Obtained viridazinone.

参考例t ゲ、j−ジヒドロ−b−(*−メチルフェニル)−3−
(コl−ビリタ゛ジノンの合成:トルエン30xllf
C無水コハク酸!、/?を加え、塩化アルミニウム/ 
471添加してフリーデルクラフッ反応を7θ℃30分
間行なう。反応物を氷水3o owlに注ぎ濃塩酸コo
1を加え攪拌し析出した白色結晶をr取しデ、j)の粗
製の/−(参−メチルベンゾイル)プロピオン酸を得た
。つぎKこのβ−(デーメチルベンゾイル)プロピオン
酸に水り―とエタノールJ−を加え更にヒドラジンO,
コj)を加えて6時間還流し、後室温まで冷却し結晶を
F摩し乾燥の後0.It f。
Reference example t Ge,j-dihydro-b-(*-methylphenyl)-3-
(Synthesis of Colli-Biritadinone: Toluene 30xllf
C Succinic anhydride! ,/? Add aluminum chloride/
471 was added and a Friedel-Craft reaction was carried out at 7θ°C for 30 minutes. Pour the reaction mixture into 3 owl of ice water and add concentrated hydrochloric acid.
1 was added and stirred, and the precipitated white crystals were collected to obtain crude /-(methylbenzoyl)propionic acid (d). Next, add water and ethanol to this β-(demethylbenzoyl)propionic acid, and then add hydrazine O,
After adding Coj) and refluxing for 6 hours, it was cooled to room temperature, and the crystals were rubbed with F and dried. It f.

参、!−ジヒドロー4−(参−メチルフェニル)−、β
−(JH)−ピリダジノンを得た。
three,! -dihydro 4-(methylphenyl)-, β
-(JH)-pyridazinone was obtained.

参考例7 ダ、j−ジヒドロ−b−(+−アセチルアミノフェニル
)−J−(−g)−ピリダジノンの合成:DMFlo−
に塩化アルミニウム4.7)を添加しさらに4E−アセ
チルアミノベンゼンA、t?と無水コハク酸s、oi 
yを添加し70℃1時間でフリーデルタラック反応を行
なった。反応物を氷水りθσdに注ぎさらに濃虐酸6θ
―を加えて攪拌の後析出している結晶をP取乾燥してデ
、qざtのβ−(デーアセチルアミノベンゾイル)プロ
ピオン酸を得た。このβ−(41−アセチルアミノベン
ゾイル)プロピオン酸コ、33tのゲ、!−ジヒドロ−
1−(デーアセチルアミノフェニル)−j−(−n)−
ピリダジノンヲ得る強心剤としての有用性を標準の薬理
学試験方法で、例えば犬の摘出乳贋筋及びモルモットの
摘出左心 筋の収縮力の有意な増加を起ζし、まだ麻酔
した犬の心臓収縮力の有意な増加を起こす点における有
効性によシ示す、薬理試験方法につき以下に述べる。
Reference Example 7 Synthesis of da,j-dihydro-b-(+-acetylaminophenyl)-J-(-g)-pyridazinone: DMFlo-
Aluminum chloride 4.7) was added to 4E-acetylaminobenzene A, t? and succinic anhydride s, oi
y was added and Friedel-Track reaction was carried out at 70°C for 1 hour. Pour the reaction mixture into ice water θσd and add concentrated acid 6θ
- was added, and after stirring, the precipitated crystals were removed and dried to obtain β-(deacetylaminobenzoyl)propionic acid. This β-(41-acetylaminobenzoyl) propionic acid co, 33t,! -dihydro-
1-(deacetylaminophenyl)-j-(-n)-
Pyridazinone's usefulness as a cardiotonic agent has been demonstrated using standard pharmacological testing methods, e.g., producing significant increases in the contractile force of isolated mammary muscle in dogs and isolated left heart muscle in guinea pigs, and in cardiac contractility in still anesthetized dogs. Pharmacological testing methods are described below that demonstrate their effectiveness in producing a significant increase in

大摘出乳頭筋交叉環流標本を用いる方法。A method using a large excised papillary muscle chiasm perfusion specimen.

大摘出乳頭筋交叉環流標本は連勝と橋本の方法〔アメリ
カン ジャーナル オブ フイジオロジ−(Ameri
can J、Phy@ial、 )コlt寺、l参よデ
ーllI43頁、1910年、アメリカ参照〕を記録し
丸、結果を第−表に示す。
Large isolated papillary muscle chiasm perfusion specimens were prepared using the consecutive and Hashimoto methods [American Journal of Physiology (Ameri).
The results are shown in Table 1.

第1表 ほか4名゛Table 1 4 others

Claims (1)

【特許請求の範囲】[Claims] (1)一般式(I)又は■ (1)        [) (式中!、Yは水素原子、)為ロゲン原子、アルコキシ
基、シアノ基、アミノ基、アジルアミノ基、ニトロ基、
トリフルオロメチル基、カルボアミド基又は炭素数/〜
基の低級アルキル基を表わす。) で示されるビリダジノン誘導体又はその塩類を含む強心
剤。
(1) General formula (I) or ■ (1) [) (In the formula!, Y is a hydrogen atom,) a halogen atom, an alkoxy group, a cyano group, an amino group, an azilamino group, a nitro group,
Trifluoromethyl group, carboxamide group or number of carbon atoms/~
represents a lower alkyl group. ) A cardiotonic agent containing a pyridazinone derivative or a salt thereof.
JP10530381A 1981-07-06 1981-07-06 Cardiotonic drug Pending JPS588015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10530381A JPS588015A (en) 1981-07-06 1981-07-06 Cardiotonic drug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10530381A JPS588015A (en) 1981-07-06 1981-07-06 Cardiotonic drug

Publications (1)

Publication Number Publication Date
JPS588015A true JPS588015A (en) 1983-01-18

Family

ID=14403924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10530381A Pending JPS588015A (en) 1981-07-06 1981-07-06 Cardiotonic drug

Country Status (1)

Country Link
JP (1) JPS588015A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953472A (en) * 1982-09-21 1984-03-28 Mitsui Toatsu Chem Inc Pyridazinone derivative
JPS60501258A (en) * 1983-05-11 1985-08-08 ビイク グルデン ロンベルク ヒエ−ミツシエ フアブリ−ク ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Pyridazinone, its production and uses, and drugs containing pyridazinone
EP0178189A2 (en) * 1984-10-12 1986-04-16 Sankyo Company Limited Pyridazinone derivatives, their preparation and use
US5567699A (en) * 1994-04-26 1996-10-22 Mitsubishi Chemical Corporation Thiadiazinone derivatives
WO1999066932A1 (en) * 1998-06-19 1999-12-29 Orion Corporation New use of a pyridazinone derivative

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953472A (en) * 1982-09-21 1984-03-28 Mitsui Toatsu Chem Inc Pyridazinone derivative
JPH0524149B2 (en) * 1982-09-21 1993-04-06 Mitsui Toatsu Chemicals
JPS60501258A (en) * 1983-05-11 1985-08-08 ビイク グルデン ロンベルク ヒエ−ミツシエ フアブリ−ク ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Pyridazinone, its production and uses, and drugs containing pyridazinone
EP0178189A2 (en) * 1984-10-12 1986-04-16 Sankyo Company Limited Pyridazinone derivatives, their preparation and use
EP0178189B1 (en) * 1984-10-12 1991-01-23 Sankyo Company Limited Pyridazinone derivatives, their preparation and use
US5567699A (en) * 1994-04-26 1996-10-22 Mitsubishi Chemical Corporation Thiadiazinone derivatives
WO1999066932A1 (en) * 1998-06-19 1999-12-29 Orion Corporation New use of a pyridazinone derivative
USRE38102E1 (en) 1998-06-19 2003-04-29 Orion Corporation Use of a pyridazinone derivative

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