JPS6041065B2 - Method for producing heterocyclic compounds - Google Patents

Method for producing heterocyclic compounds

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Publication number
JPS6041065B2
JPS6041065B2 JP56081781A JP8178181A JPS6041065B2 JP S6041065 B2 JPS6041065 B2 JP S6041065B2 JP 56081781 A JP56081781 A JP 56081781A JP 8178181 A JP8178181 A JP 8178181A JP S6041065 B2 JPS6041065 B2 JP S6041065B2
Authority
JP
Japan
Prior art keywords
formula
formulas
compound represented
tables
halogen
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.)
Expired
Application number
JP56081781A
Other languages
Japanese (ja)
Other versions
JPS57171976A (en
Inventor
グラハム・ジヨン・ダラント
ジヨン・コリン・エメツト
シヤロン・ロビン・ガネリン
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.)
GSK PLC
Original Assignee
GlaxoSmithKline PLC
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 GlaxoSmithKline PLC filed Critical GlaxoSmithKline PLC
Priority to JP56081781A priority Critical patent/JPS6041065B2/en
Publication of JPS57171976A publication Critical patent/JPS57171976A/en
Publication of JPS6041065B2 publication Critical patent/JPS6041065B2/en
Expired legal-status Critical Current

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  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Thiazole And Isothizaole Compounds (AREA)

Description

【発明の詳細な説明】 本発明は異項環式化合物の製造法、更に詳しくは、H−
1受容体以外のヒスタミン受容体に作用する抗ヒスタミ
ン剤として有用な化合物製造における中間体として有用
な異項環式化合物の製造法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing heterocyclic compounds, more specifically, H-
The present invention relates to a method for producing a heterocyclic compound useful as an intermediate in the production of a compound useful as an antihistamine agent that acts on histamine receptors other than 1 receptor.

従来、生理学的活性物質はその活性を現わす過程におい
て、動物体内中、受容体として知られるある種の特殊な
役割を果たす部位と結合するものと仮定されている。
Conventionally, it has been assumed that in the process of exerting its activity, physiologically active substances bind to sites in the animal body that play certain special roles, known as receptors.

ヒスタミンは動物体内において上記のごとき機作に従っ
て作用を発揮すると考えられている物質であって、その
作用には複数の種類があるところから、ヒスタミン受容
体にも複数の種類があるものと信じられている。通常、
抗ヒスタミン剤(たとえばメピラミン)と呼ばれる薬剤
によって阻止されるヒスタミン作用の類型は、アツシお
よびシールド‘こよりH−1と命名された受容体(ブリ
ティッシュ・ジャーナル・オブ・ファーマコロジー27
巻427頁(1966年)参照)が関与するものと考え
られる。本発明の目的は、H−1受容体以外のヒスタミ
ン受容体に作用し、前記抗ヒスタミン剤によって抑制さ
れないある種のヒスタミン作用を抑制し、また、ガスト
リンの有するある種の作用に対する抑制剤として有用な
化合物製造における中間体として有用な異項環式化合物
の製造法を提供することである。
Histamine is a substance that is thought to exert its effects in the animal body according to the mechanism described above, and since there are multiple types of its effects, it is believed that there are multiple types of histamine receptors as well. ing. usually,
The type of histamine action that is blocked by drugs called antihistamines (e.g., mepyramine) is based on a receptor named H-1 by Atsushi and Shields (British Journal of Pharmacology 27).
Vol. 427 (1966)) is thought to be involved. The object of the present invention is to provide a compound that acts on histamine receptors other than H-1 receptors, suppresses certain histamine effects that are not suppressed by the above-mentioned antihistamines, and is also useful as an inhibitor for certain effects of gastrin. An object of the present invention is to provide a method for producing a heterocyclic compound useful as an intermediate in production.

すなわち、本発明によれば、式 〔式中、X、1およびAは後託と同意義〕で示される化
合物を式 Q−(CQ)m−NH2 または 〔式中、mは後記と同意義。
That is, according to the present invention, a compound represented by the formula [wherein, .

Qはヒドロキシまたはハロゲンを表す〕で示される化合
物と反応させ、フタルイミド保護基が存在する場合はこ
れを離脱させて、式〔式中、Xは水素、低級アルキルま
たはハロゲン、Aは式中に示す炭素原子と合して形成さ
れる不飽和異項環基であって、チアゾリルまたはオキサ
ゾリル基を示す。
Q represents hydroxy or halogen], and if a phthalimide protecting group is present, it is removed to form a compound of the formula [wherein X is hydrogen, lower alkyl or halogen, and A is shown in the formula] It is an unsaturated heterocyclic group formed by combining with a carbon atom, and represents a thiazolyl or oxazolyl group.

1は0または1、mは、1が0のとき3、1が1のとき
2を表す〕で示される目的とする異項環式化合物が得ら
れる。
1 represents 0 or 1, m represents 3 when 1 is 0, and 2 when 1 represents 1] is obtained.

この反応は、該チオール出発物質に、たとえば、酸性条
件下アミノアルカノール、あるいはアルカリ性条件下ハ
ロアルキルアミンを反応させて行なえる。
This reaction can be carried out by reacting the thiol starting material with, for example, an aminoalkanol under acidic conditions or a haloalkylamine under alkaline conditions.

また、フタルィミド保護基の離脱は、たとえば、反応終
了後に酸加水分解またはヒドラジノ分解することにより
行なえる。本発明で用いる出発物質は公知であるか、公
知の方法によって製造できる。
Further, removal of the phthalimide protecting group can be carried out, for example, by acid hydrolysis or hydrazinolysis after completion of the reaction. The starting materials used in the present invention are known or can be prepared by known methods.

化合物〔1〕は酸付加塩の形で存在し得る。Compound [1] may exist in the form of an acid addition salt.

また、この酸付加塩を適当な塩基、たとえば、ナトリウ
ムェトキシドのごときアルカリ金属アルコキシドまたは
炭酸カリウムのごとき無機塩基と処理することによって
式〔1〕の遊離塩基を得ることができる。前記のごとく
、化合物〔1〕は動物体内においてメピラミンのごとき
抗ヒスタミン剤によって阻止されないある種のヒスタミ
ンの働きに対する措杭剤として有用な化合物の製造中間
体として用いられる。
Alternatively, the free base of formula [1] can be obtained by treating this acid addition salt with a suitable base, for example an alkali metal alkoxide such as sodium ethoxide or an inorganic base such as potassium carbonate. As mentioned above, compound [1] is used as an intermediate in the production of a compound useful as a countermeasure against the effects of certain histamines that are not inhibited by antihistamines such as mepyramine in the animal body.

たとえば、式〔1〕の化合物を、式 R,一N=C=E 〔式中、R,は水素、低級アルキル、アシルまたはジァ
ルキルアミノアルキル、Eは酸素、硫黄またはNR2を
示す。
For example, the compound of formula [1] can be prepared by formula R, -N=C=E [wherein R represents hydrogen, lower alkyl, acyl or dialkylaminoalkyl, and E represents oxygen, sulfur or NR2].

R2は水素、ニトロまたはシアノを表わす〕で示される
化合物と反応させることによりメピラミンのごとき抗ヒ
スタミン剤によって阻止されないある種のヒスタミンの
働きに対する措抗剤として有用な化合物が得られる。
R2 represents hydrogen, nitro, or cyano] to obtain a compound useful as an inhibitor against certain histamine effects that are not inhibited by antihistamines such as mepyramine.

つぎに参考例および実施例を挙げて本発明を更に詳しく
説明するが、これらに限定されるものではない。
Next, the present invention will be explained in more detail with reference to Reference Examples and Examples, but the present invention is not limited thereto.

参考例 1 2−〆ルカプトイミダゾール2夕および3−アミノプロ
パノール1.14泌の臭化水素酸溶液(48%)25肌
を2期時間加熱還流する。
Reference Example 1 A hydrobromic acid solution (48%) containing 2 hours of 2-captoimidazole and 1.1 hours of 3-aminopropanol was heated under reflux for 2 hours.

反応混合物を蒸発、乾燥し、油状残留物から得られた固
形物をエタノールーェーテルから2回再結晶して、2一
(3−アミノプロピルメルカプト)イミダゾール・二臭
化水素酸塩3.55夕を得る。融点:160〜16ぞ○
。実施例 1 参考例1と同様にしてつぎの第1表に示す式Het−S
−CH2C&CH2NH2・2HBrで表わされる化合
物を得る。
The reaction mixture was evaporated to dryness and the solid obtained from the oily residue was recrystallized twice from ethanol-ether to give 2-(3-aminopropylmercapto)imidazole dihydrobromide.3. Get 55 evenings. Melting point: 160~16○
. Example 1 Similarly to Reference Example 1, the formula Het-S shown in the following Table 1
A compound represented by -CH2C&CH2NH2.2HBr is obtained.

第1表には、該中間体から得られるヒスタミン桔抗剤と
して有用な最終生成物も合わせて示す。第1表 〔注)表中、***は「Het」の欄に示す異項環基を
意味する。
Table 1 also shows the final products obtained from the intermediates which are useful as histamine antagonists. Table 1 [Note] In the table, *** means the heterocyclic group shown in the "Het" column.

実施例 2 【i} エタノール1800必中カリウムチオシアネー
トに塩酸90私を加え、無機物質を炉別して炉液にグリ
コールアルデヒド35.9夕を加え、この溶液を2少時
間加熱還流する。
Example 2 [i} 90% of hydrochloric acid is added to 1800% of potassium thiocyanate in ethanol, the inorganic substances are separated in a furnace, 35.9% of glycolaldehyde is added to the furnace liquid, and this solution is heated under reflux for 2 hours.

これを濃縮した後、冷やして白色固体を得、次いでエタ
ノールから再結晶してオキサゾール−2−チオール30
夕を得る。融点:143〜144q○。{ii’ 3ー
フロモプロピルフタルイミド13.4夕をナトリウムェ
トキシド(ナトリウム1.15夕から得る。
After concentrating and cooling, a white solid was obtained, which was then recrystallized from ethanol to obtain oxazole-2-thiol 30
Get the evening. Melting point: 143-144q○. {ii' 13.4 mm of 3-furomopropylphthalimide is obtained from 1.15 mm of sodium ethoxide.

)およびオキサゾールー2ーチオール5.1夕のエタノ
ールlo0の‘溶液に燈拝しながら加える。この溶液を
2.5時間加熱還流し、減圧下に濃縮し、磯澄を水10
0泌で処理して2一(3ーフタルイミドプロピルチオ)
オキサゾール14夕を得る。融点:101oo。エタノ
ールから再結晶して純オキサゾール化合物を得る。融点
:102〜103q○。価 ヒドラジンヒドレート5.
3夕を2−(3−フタルイミドプロピルチオ)オキサゾ
ール10夕のエタノール173の‘溶液に縄拝しながら
注意して加え、この溶液を25分間加熱還流する。
) and oxazole-2-thiol 5.1 mL of ethanol solution. This solution was heated under reflux for 2.5 hours, concentrated under reduced pressure, and dissolved in 10 ml of water.
21 (3-phthalimidopropylthio) after treatment with 0 secretion
Obtain oxazole 14 days. Melting point: 101oo. Recrystallize from ethanol to obtain pure oxazole compound. Melting point: 102-103q○. Value Hydrazine hydrate 5.
Three parts of 2-(3-phthalimidopropylthio)oxazole are carefully added to a solution of ten parts of ethanol 173, and the solution is heated to reflux for 25 minutes.

冷後、フタルヒドラジドを炉則して、炉液を減圧下濃縮
し、残溝にエタノールを加えて再び蒸発させ、2一(3
−アミノプロピルチオ)オキサゾールを得る。実施例
3 実施例2の反応条件に準じて4−メチルオキサゾールー
2−チオール5.8夕を3−フロモプロピルフタルィミ
ド13.4夕と反応させて、4ーメチル−2一(3−フ
タルイミドプロピルチオ)オキサゾール14夕を得る。
After cooling, the phthalhydrazide was concentrated under reduced pressure, and ethanol was added to the remaining groove and evaporated again.
-aminopropylthio)oxazole is obtained. Example
3 According to the reaction conditions of Example 2, 5.8 mm of 4-methyloxazole-2-thiol was reacted with 13.4 mm of 3-fluoropropylphthalimide to produce 4-methyl-2-(3-phthalimidopropyl). Thio)oxazole 14 is obtained.

エタノール−エーテルから結晶化後の融点:92〜93
℃。実施例2の反応条件に準じてこのフタルィミド化合
物からフタルィミド保護基を離脱させる。
Melting point after crystallization from ethanol-ether: 92-93
℃. The phthalimide protecting group is removed from this phthalimide compound according to the reaction conditions of Example 2.

実施例 4および5実施例1または実施例2と同機にし
てつぎの第2表に示す式Het−CH2SCH2CH2
NH2・2HW〔式中、Wは第2表に記載のピクレート
またはブロミドを意味する〕で示される化合物を得る。
Examples 4 and 5 The same machine as Example 1 or 2 has the formula Het-CH2SCH2CH2 shown in Table 2 below.
A compound represented by NH2.2HW (wherein W means picrate or bromide listed in Table 2) is obtained.

なお、表中には該中間体から得られるヒスタミン措抗剤
として有用な最終生成物も合せて示す。第2表 実施例 6 前記実施例1〜5と同様にしてつぎの化合物を得る。
The table also shows the final product obtained from the intermediate, which is useful as a histamine inhibitor. Table 2 Example 6 The following compounds were obtained in the same manner as in Examples 1 to 5 above.

3一〔(2−アミノヱチル)チオメチル〕イソサゾール
臭化水素酸塩、融点131〜133℃4ープロモー3一
〔(2ーアミノエチル)チオメチル〕ィソチアゾール臭
化水素酸塩、融点111〜1120。
3-[(2-aminoethyl)thiomethyl]isothiazole hydrobromide, melting point 131-133°C 4-promo 3-[(2-aminoethyl)thiomethyl]isothiazole hydrobromide, melting point 111-1120.

Claims (1)

【特許請求の範囲】 1 式 ▲数式、化学式、表等があります▼ 〔式中、X,lおよびAは後記と同意義〕で示される
化合物を式 Q−(CH_2)m−NH_2 〔式中、mは後記と同意義。 Qはヒドロキシまたはハロゲンを表す〕で示される化合
物と反応させることを特徴とする式▲数式、化学式、表
等があります▼ 〔式中、Xは水素、低級アルキルまたはハロゲン、A
は式中に示す炭素原子と合して形成される不飽和異項環
基であつて、チアゾリルまたはオキサゾリル基を示す。 lは0または1、mは、lが0のとき3、lが1のとき
2を表す〕で示される異項環式化合物の製造法。 2 式 ▲数式、化学式、表等があります▼ 〔式中、X、lおよびAは後記と同意義〕で示される
化合物を式▲数式、化学式、表等があります▼ 〔式中、mは後記と同意義。 Qはヒドロキシまたはハロゲンを表す〕で示されるフタ
ルイミド保護化合物と反応させ、ついで該保護基を離脱
させることを特徴とする式▲数式、化学式、表等があり
ます▼ 〔式中、Xは水素、低級アルキルまたはハロゲ
ン、Aは式中に示す炭素原子と合して形成される不飽和
異項環基であつて、チアゾリルまたはオキサゾリル基を
示す。 lは0または1、mは、lが0のとき3、lが1のとき
2を表す〕で示される異項環式化合物の製造法。
[Claims] 1 A compound represented by the formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ [In the formula, X, l, and A have the same meanings as below] , m has the same meaning as below. There are formulas, chemical formulas, tables, etc. that are characterized by reacting with a compound represented by Q represents hydroxy or halogen.
represents an unsaturated heterocyclic group formed by combining with the carbon atoms shown in the formula, and represents a thiazolyl or oxazolyl group. l is 0 or 1; m is 3 when l is 0; and 2 when l is 1]. 2 A compound represented by the formula▲There are mathematical formulas, chemical formulas, tables, etc.▼ [In the formula, Same meaning. There are formulas, chemical formulas, tables, etc. that are characterized by reacting with a phthalimide protected compound represented by Q represents hydroxy or halogen, and then removing the protecting group. Alkyl or halogen, A is an unsaturated heterocyclic group formed by combining with the carbon atom shown in the formula, and represents a thiazolyl or oxazolyl group. l is 0 or 1; m is 3 when l is 0; and 2 when l is 1].
JP56081781A 1981-05-27 1981-05-27 Method for producing heterocyclic compounds Expired JPS6041065B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56081781A JPS6041065B2 (en) 1981-05-27 1981-05-27 Method for producing heterocyclic compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56081781A JPS6041065B2 (en) 1981-05-27 1981-05-27 Method for producing heterocyclic compounds

Publications (2)

Publication Number Publication Date
JPS57171976A JPS57171976A (en) 1982-10-22
JPS6041065B2 true JPS6041065B2 (en) 1985-09-13

Family

ID=13756016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56081781A Expired JPS6041065B2 (en) 1981-05-27 1981-05-27 Method for producing heterocyclic compounds

Country Status (1)

Country Link
JP (1) JPS6041065B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62143234U (en) * 1986-03-04 1987-09-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62143234U (en) * 1986-03-04 1987-09-09

Also Published As

Publication number Publication date
JPS57171976A (en) 1982-10-22

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