JPS62174017A - 1,4-dihydropyridine derivative - Google Patents

1,4-dihydropyridine derivative

Info

Publication number
JPS62174017A
JPS62174017A JP20323186A JP20323186A JPS62174017A JP S62174017 A JPS62174017 A JP S62174017A JP 20323186 A JP20323186 A JP 20323186A JP 20323186 A JP20323186 A JP 20323186A JP S62174017 A JPS62174017 A JP S62174017A
Authority
JP
Japan
Prior art keywords
compound
dihydropyridine
benzyl
ester
nitrophenyl
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.)
Granted
Application number
JP20323186A
Other languages
Japanese (ja)
Other versions
JPH0251525B2 (en
Inventor
Kenji Muto
武藤 健治
Tokuyuki Kuroda
黒田 徳幸
Hiroshi Karasawa
啓 唐沢
Koji Yamada
耕二 山田
Yoshihiro Nakamizo
中溝 喜博
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.)
KH Neochem Co Ltd
Original Assignee
Kyowa Hakko Kogyo Co Ltd
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 Kyowa Hakko Kogyo Co Ltd filed Critical Kyowa Hakko Kogyo Co Ltd
Priority to JP20323186A priority Critical patent/JPS62174017A/en
Publication of JPS62174017A publication Critical patent/JPS62174017A/en
Publication of JPH0251525B2 publication Critical patent/JPH0251525B2/ja
Granted legal-status Critical Current

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  • Hydrogenated Pyridines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

PURPOSE:To provide a remedy for circulatory diseases, by using a specific 1,4-dihydropyridine derivative as an active component. CONSTITUTION:2,6-Dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-di carboxylic acid 3-(1-benzyl-3-piperidyl) ester 5-methyl ester having a melting point of 197-198 deg.C (as hydrochloride) or its salt is used as an active compound. The compound used as an active component has hypotensive action, coronary vasodilating action, peripheral vasodilating action, etc., and is useful as a circula tory drug such as hypotensor, vasodilator, etc. The objective compound can be produced by converting the compound of formula I to corresponding acid halide with a halogenation reagent and reacting the acid halide with 1-benzyl-3- judroxy-piperidine of formula II preferably at -20-+50 deg.C.

Description

【発明の詳細な説明】 本発明は塩酸塩の融点が196〜202℃である2、−
6−ジメチル−4−(3−ニトロフェニル)=1,4−
ジヒドロピリジン−3,5−ジカルボン酸−5−(1−
ベンジル−3−ピペリジル)エステル−5−メチルエス
テルおよびその塩に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides 2,-
6-dimethyl-4-(3-nitrophenyl)=1,4-
Dihydropyridine-3,5-dicarboxylic acid-5-(1-
Benzyl-3-piperidyl) ester-5-methyl ester and its salt.

本化合物は血圧降下作用、冠血管拡張作用、末梢血管拡
張作用などを有し、血圧降下剤、血管拡張剤などの循環
器官用蘂として有用な化合物である。
This compound has a blood pressure lowering effect, a coronary vasodilator effect, a peripheral vasodilator effect, etc., and is a compound useful as a blood pressure lowering agent, a vasodilator, and the like for cardiovascular organs.

本発明者らは、2.6−ジメチル−4−(3,’−ニト
ロフェニル)−1,4−ジヒドロピリジン−3,5−ジ
カルボン酸−5−(1−ベンジル−3−ピペリジル)エ
ステル−5−メチルエステルを包含する1、4−ジヒド
ロピリジン誘導体を出願している〔特願昭56−569
37号(特開昭57−171968号公報)〕。
The present inventors discovered that 2,6-dimethyl-4-(3,'-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid-5-(1-benzyl-3-piperidyl) ester-5 -A patent application has been filed for 1,4-dihydropyridine derivatives including methyl esters [Patent application No. 56-569]
No. 37 (Japanese Unexamined Patent Publication No. 57-171968)].

2.6−ジメチル−4−(3−ニトロフェニル)−1,
4−ジヒドロピリジン−3,5−ジカルボン!!−5−
(1−ベンジル−3−ピペリジル)エステル−5−メチ
ルエステルには2個の不斉炭素がある為、ジアステレオ
マーが存在する。本発明者らはこれらのジアステレオマ
ーの分離及び薬理活性について検討した。
2.6-dimethyl-4-(3-nitrophenyl)-1,
4-dihydropyridine-3,5-dicarvone! ! -5-
(1-Benzyl-3-piperidyl) ester-5-methyl ester has two asymmetric carbon atoms, so diastereomers exist. The present inventors investigated the separation and pharmacological activity of these diastereomers.

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

本化合物の製造工程の一例は次の通りである。An example of the manufacturing process of the present compound is as follows.

明細書の浄書(内容に変更なし) 化合物■          化合物■化合物■は、化
合物■とハロゲン化試薬(例えば、塩化チオニル、三塩
化リン、五塩化リン、オキシ塩化リン、三臭化リン等)
との反応により得られる。
Copy of specification (no change in content) Compound ■ Compound ■ Compound ■ is compound ■ and halogenating reagent (e.g., thionyl chloride, phosphorus trichloride, phosphorus pentachloride, phosphorus oxychloride, phosphorus tribromide, etc.)
Obtained by reaction with

反応はジクロルメタン、クロロホルム、四塩化炭素、ク
ロルベンゼン等のハロゲン化炭化水明細書の浄tF(内
容に変更なし) 索類、ベジゼン、トルエン等の芳香族炭化水素類、テト
ラヒドロフラン、ジオキサン等のエーテル類、アセトニ
トリル、N、N−ジメチルホルムアミド、ヘキサメチル
ホスホリックトリアミド等の非プロ 」 トン性極性溶媒、ピリジン、トリエチルアミン等のアミ
ン類の存在下または非存在下に行われるが、特に、好ま
しくは塩化チオニルをハロゲン化試薬として用い、N、
N−ジメチルホルムアミドまたはへキサメチルホス承り
ツクトリアミドの存在下、上記の溶媒を併用または併用
せずして行われる。
The reaction is performed with halogenated hydrocarbons such as dichloromethane, chloroform, carbon tetrachloride, and chlorobenzene (no change in content), aromatic hydrocarbons such as hydrocarbons, bezizene, and toluene, and ethers such as tetrahydrofuran and dioxane. , acetonitrile, N,N-dimethylformamide, hexamethylphosphoric triamide, etc., in the presence or absence of amines such as pyridine, triethylamine, etc., but chloride is particularly preferred. Using thionyl as a halogenating reagent, N,
The reaction is carried out in the presence of N-dimethylformamide or hexamethylphostriamide, with or without the above-mentioned solvents.

カルボン酸と塩化チオニルのモル比は1.0:0゜8〜
1.0:2.0の範囲、好ましくは1. O:’Q、9
〜1.0:1.2である。
The molar ratio of carboxylic acid and thionyl chloride is 1.0:0°8~
1.0:2.0 range, preferably 1.0:2.0. O:'Q, 9
~1.0:1.2.

塩化チオニルとN、N−ジメチルホルムアミドまたはへ
キサメチルホスホリックトリアミドのモル比は1:1〜
1 : 100、好ましくは1:5〜1:ぎ0である。
The molar ratio of thionyl chloride and N,N-dimethylformamide or hexamethylphosphoric triamide is 1:1 to
The ratio is 1:100, preferably 1:5 to 1:0.

反応は一70℃〜100℃、好ましくは一20℃〜50
℃の温度で行われる。
The reaction is carried out at -70°C to 100°C, preferably -20°C to 50°C.
It is carried out at a temperature of °C.

次いで、得られた化合物■(単離しなくともよい)と化
合物■とを反応させることにより目的化合物が得られる
。溶媒としては、化合物■から化合物■を製造する際に
使用された溶媒が用いられる。
Next, the target compound is obtained by reacting the obtained compound (1) (which may not be isolated) with compound (2). As the solvent, the solvent used in producing compound (2) from compound (1) is used.

反応は、化合物■と化合物■とのモル比1.0=0.8
〜1.0:2.0好ましくはi、o:o、9〜1.0:
1.2の範囲で、−70℃〜100℃好ましくは一20
℃〜50℃の温度で行われる。
The reaction takes place at a molar ratio of compound (1) and compound (2) of 1.0 = 0.8.
~1.0:2.0 preferably i, o:o, 9-1.0:
1.2 in the range of -70°C to 100°C, preferably -20°C
It is carried out at a temperature of 50°C to 50°C.

反応液中には、2,6−ジメチル−4−(3−ニトロフ
ェニル)−1,4−ジヒドロピリジン−3゜5−ジカル
ボン酸−5−(1−ベンジル−3−ピペリジル)エステ
ル−5−メチルエステルの融点196〜202℃の化合
物(α体)と融点236〜242℃の化合物(β体)と
の混合物が存在するので、目的化合物であるα体を単離
するのには次の如く行なう。
In the reaction solution, 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3°5-dicarboxylic acid-5-(1-benzyl-3-piperidyl) ester Since there is a mixture of an ester compound with a melting point of 196 to 202°C (α form) and a compound with a melting point of 236 to 242°C (β form), the target compound, the α form, can be isolated as follows. .

反応液を抽出、濃縮等の通常の操作の後、適当な単一ま
たは混合溶媒から分別結晶を行えばα体が晶出し、β体
は溶液中に残る。
After conventional operations such as extraction and concentration of the reaction solution, fractional crystallization is performed from a suitable single or mixed solvent, whereby the α-isomer crystallizes and the β-isomer remains in the solution.

分別結晶に適当な単一または混合溶媒としては、エタノ
ール、クロロホルム、エタノール−アセトン、クロロホ
ルム−アセトン、クロロホルム−エーテル、クロロホル
ム−酢酸エチル等があげられ、特にエタノール−アセト
ン、クロロホルムーアセ明細書の浄書(内容に変更なし
) 「 トンの混合溶媒が好ましい。尚出発原料である化合
物■は文献既知(T、Shibanuma et al
、。
Suitable single or mixed solvents for fractional crystallization include ethanol, chloroform, ethanol-acetone, chloroform-acetone, chloroform-ether, chloroform-ethyl acetate, etc., especially ethanol-acetone, chloroform acetate, etc. (No change in content) ``Ton mixed solvent is preferred.The starting material, Compound ■, is known from the literature (T, Shibanuma et al.
,.

Chem、Pharm、 Bulll、 28.280
9(1980))の化合物であり、次に示す反応式によ
って得られる。
Chem, Pharm, Bull, 28.280
9 (1980)) and is obtained by the reaction formula shown below.

1I CH20C2Hs CH20C2H5 明細書の浄′g!(内容に変更なし) ■ 化合物■ 」 本化合物の塩としては、塩酸塩、臭化水素酸塩、りん酸
塩、硫酸塩などの無機酸塩、ぎ酸塩、酢酸塩、フマル酸
塩、マレイン酸塩、リンゴ酸塩などの有機酸塩があげら
れる。
1I CH20C2Hs CH20C2H5 Specification clean'g! (No change in content) ■ Compound Examples include organic acid salts such as acid salts and malate.

次に本化合物の血圧降下作用を説明する。Next, the blood pressure lowering effect of this compound will be explained.

試験方法 雑N成犬(8−15kg)をベンドパルビタール・ナト
リウム30 mg/ kgの静脈内投与により麻酔した
。左大腿動脈にカニユーレを挿入し、圧カドランスジュ
ーサー(日本光電)により、血圧を測定してポリグラフ
に記録した。
Test Method Adult dogs (8-15 kg) were anesthetized by intravenous administration of 30 mg/kg of bendoparbital sodium. A cannula was inserted into the left femoral artery, and blood pressure was measured using a pressure cadence juicer (Nihon Kohden) and recorded on a polygraph.

薬物は、ポリエチレングリコール400に溶解してぐ体
重1 kgあたり、0.1 m lを上腕静脈より投与
した。
The drug was dissolved in polyethylene glycol 400, and 0.1 ml per 1 kg of body weight was administered through the brachial vein.

その結果を第1表に示す。The results are shown in Table 1.

第1表に示したようにα体は投与後1分から明らかな血
圧降下作用を発現し、90分以上持続した。
As shown in Table 1, the α form exerted a clear blood pressure lowering effect from 1 minute after administration and lasted for more than 90 minutes.

試験方法 雑犬(9−18kg)をチオベンタール・ナトリウム麻
酔下方腎動脈を狭窄し、腎性高血圧犬を作成した。左頚
動脈から下行動脈内に挿入したポリエチレンカニユーレ
(頚背部に固定)を介し、無麻酔下、血圧変化を観血的
に測定した。薬物は、0.3%カルボキシメチルセルロ
ースに懸濁したものを体重1 kgあたりQ、5mj2
.経口投与用チューブを用いて経口投与した。
Test method A mongrel dog (9-18 kg) was anesthetized with thiobental sodium and the inferior renal artery was constricted to create a dog with renal hypertension. Changes in blood pressure were measured invasively under anesthesia via a polyethylene cannula (fixed to the back of the neck) inserted into the descending artery from the left carotid artery. The drug was suspended in 0.3% carboxymethylcellulose at Q, 5mj2 per kg of body weight.
.. It was administered orally using an oral administration tube.

そめ結果を第2表に示す 第  2  表 注)使用薬物:α体 本発明化合物は、その薬理作用にかんがみて、投与目的
に対する各種の製薬形態で使用可能であり、特に、錠剤
、散剤などの経口服用形態として用いるのが好ましい。
The results are shown in Table 2. Note) Drug used: α-form The compound of the present invention can be used in various pharmaceutical forms for the purpose of administration, especially in tablets, powders, etc. in view of its pharmacological action. Preferably, it is used as an oral dosage form.

錠剤の場合は一錠中に本発明化合物を5〜30%Φ/w
)含有せしめればよい。その他の成分(担体)としては
通常用いられる賦形剤、崩壊剤、滑沢剤、結合剤、剤皮
剤等が用いられる。
In the case of tablets, each tablet contains 5 to 30% Φ/w of the compound of the present invention.
) may be included. Other components (carriers) include commonly used excipients, disintegrants, lubricants, binders, coating agents, and the like.

賦形剤としてはブドウ糖、乳糖等、崩壊剤としてはデン
プン、カルボキシメチルセルロース、カルシウム等、滑
沢剤としてはステアリン酸マグネシウム、タルク等、結
合剤としては単シロップ、ポリビニルアルコール、ゼラ
チン、ヒドロキシプロピルセルロース等、剤皮剤として
は分散剤と可塑剤があげられるが、分散剤としてはメチ
ルセルロース、エチルセルロース等、可塑剤としてはグ
リセリン、ポリエチレングリコール等が用いられる。ま
た結晶セルロースは崩壊、結合および賦形剤としての性
質をすべて有するものとして使用される。
Excipients include glucose, lactose, etc. Disintegrants include starch, carboxymethyl cellulose, calcium, etc. Lubricants include magnesium stearate, talc, etc. Binders include simple syrup, polyvinyl alcohol, gelatin, hydroxypropyl cellulose, etc. Examples of coating agents include dispersants and plasticizers, and examples of dispersants include methyl cellulose and ethyl cellulose, and examples of plasticizers include glycerin and polyethylene glycol. Crystalline cellulose is also used as having disintegration, binding and excipient properties.

散剤の場合は本発明化合物を1〜20%(w/w)含有
せしめればよい。担体としてはブドウ糖、乳糖等の賦形
剤、ヒドロキシプロピルセルロース等の結合剤等が用い
られる。本発明化合物(α体)の雄ラット経口投与にお
けるLDsoは127mg/Kgである。投与量は成人
(約60kg)1日あたり1−100■の範囲が好まし
い。
In the case of a powder, the compound of the present invention may be contained in an amount of 1 to 20% (w/w). As carriers, excipients such as glucose and lactose, binders such as hydroxypropyl cellulose, etc. are used. The LDso of the compound of the present invention (α form) when administered orally to male rats is 127 mg/Kg. The dosage is preferably in the range of 1-100 ml per day for an adult (approximately 60 kg).

実施例1 2.6−ジメチル−4−(3−ニトロフェニル)−1,
4−ジヒドロピリジン−3,5−ジカルボン酸モノメチ
ルエステル10.OOgをジクロルメタンとN、N−ジ
メチルホルムアミドの混合溶媒(4: lv/v)70
m4に懸濁し、水冷下に塩化チオニル2.43mffを
加えた。1時間水冷攪拌後、1−ベンジル−3−ヒドロ
キシピペリジン6.33gを加え、さらに水冷攪拌した
。2.5時間反応後、該反応液を水100ml、次いで
食塩水100mβで洗浄し、ジクロルメタン層を無水硫
酸ナトリウムで乾燥後、減圧濃縮した。その後、該濃縮
液にアセトン100mβとエタノール3mAを加えて、
黄色の2,6−ジメチル−4−(3−ニトロフェニル)
−1,4−ジヒドロピリジン−3,5−ジカルボン酸−
5−(1−ベンジル−3−ピペリジル)エステル−5−
メチルエステル塩酸塩(α体)7.57gを得た。融点
197−198℃(エタノール)。
Example 1 2.6-dimethyl-4-(3-nitrophenyl)-1,
4-dihydropyridine-3,5-dicarboxylic acid monomethyl ester 10. OOg in a mixed solvent of dichloromethane and N,N-dimethylformamide (4: lv/v) 70
2.43 mff of thionyl chloride was added while cooling with water. After stirring under water cooling for 1 hour, 6.33 g of 1-benzyl-3-hydroxypiperidine was added, and the mixture was further stirred under water cooling. After reacting for 2.5 hours, the reaction solution was washed with 100 ml of water and then with 100 mβ of brine, and the dichloromethane layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. Then, 100 mβ of acetone and 3 mA of ethanol were added to the concentrated solution,
Yellow 2,6-dimethyl-4-(3-nitrophenyl)
-1,4-dihydropyridine-3,5-dicarboxylic acid-
5-(1-benzyl-3-piperidyl)ester-5-
7.57 g of methyl ester hydrochloride (α form) was obtained. Melting point 197-198°C (ethanol).

またその結晶母液からβ体5.21gを得た。Further, 5.21 g of β-isomer was obtained from the crystal mother liquor.

融点239−240℃(エタノール−メタ、′−ル)α
体の物性値を以下に示す。
Melting point 239-240℃ (ethanol-meth,'-l) α
The physical properties of the body are shown below.

IR(KBr、am−’):1680,1525゜NM
R(DMSOdb 、  δ)  :L、3−2.2 
(4H,、broad)、2.33 (6H,s) 、
2.7 −3゜4 (4H、broad)、3.57 
(3H,s) 、4.40(2H,s) 、4.98 
 (LH,s) 、5.20(LH,broad )、
7.3 8.2 (9H,m)、9、47 (I H,
broad) 元素分析値(CzIIH3□CIt N 、l○、とし
て):CH’     N 実測値(%) 62.16  6.01  7.76計
算値(%)62.04.  5.96  7.75手続
補正書 (方式) %式% 1、事件の表示 昭和61年特許願第203231号 2、発明の名称 1.4−ジヒドロピリジン誘導体 3、補正をする者 事件との関係 特許出願人
IR (KBr, am-'): 1680, 1525゜NM
R(DMSOdb, δ): L, 3-2.2
(4H,,broad), 2.33 (6H,s),
2.7 -3°4 (4H, broad), 3.57
(3H, s) , 4.40 (2H, s) , 4.98
(LH,s), 5.20(LH,broad),
7.3 8.2 (9H, m), 9, 47 (I H,
Broad) Elemental analysis value (as CzIIH3□CIt N , l○): CH' N Actual value (%) 62.16 6.01 7.76 Calculated value (%) 62.04. 5.96 7.75 Procedural amendment (method) % formula % 1. Indication of the case 1985 Patent Application No. 203231 2. Title of the invention 1. 4-dihydropyridine derivative 3. Person making the amendment Relationship to the case Patent applicant

Claims (1)

【特許請求の範囲】[Claims] 塩酸塩の融点が197−198℃である2,6−ジメチ
ル−4−(3−ニトロフェニル)−1,4−ジヒドロピ
リジン−3,5−ジカルボン酸−3−(1−ベンジル−
3−ピペリジル)エステル−5−メチルエステルおよび
その塩を有効成分とする循環器官疾患治療剤。
2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid-3-(1-benzyl-
A therapeutic agent for circulatory organ diseases containing 3-piperidyl) ester-5-methyl ester and its salt as an active ingredient.
JP20323186A 1986-08-29 1986-08-29 1,4-dihydropyridine derivative Granted JPS62174017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20323186A JPS62174017A (en) 1986-08-29 1986-08-29 1,4-dihydropyridine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20323186A JPS62174017A (en) 1986-08-29 1986-08-29 1,4-dihydropyridine derivative

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP57180616A Division JPS5970667A (en) 1982-10-15 1982-10-15 1,4-dihydropyridine derivative

Publications (2)

Publication Number Publication Date
JPS62174017A true JPS62174017A (en) 1987-07-30
JPH0251525B2 JPH0251525B2 (en) 1990-11-07

Family

ID=16470620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20323186A Granted JPS62174017A (en) 1986-08-29 1986-08-29 1,4-dihydropyridine derivative

Country Status (1)

Country Link
JP (1) JPS62174017A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504652A (en) * 1972-09-13 1975-01-18
JPS50123667A (en) * 1974-03-05 1975-09-29
JPS55301A (en) * 1978-02-14 1980-01-05 Yamanouchi Pharmaceut Co Ltd 1,4-dihydropyridine-3,5-dicarboxylic ester derivative and its preparation

Patent Citations (3)

* Cited by examiner, † Cited by third party
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JPS50123667A (en) * 1974-03-05 1975-09-29
JPS55301A (en) * 1978-02-14 1980-01-05 Yamanouchi Pharmaceut Co Ltd 1,4-dihydropyridine-3,5-dicarboxylic ester derivative and its preparation

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