JPS6372679A - Production of imidazole derivative - Google Patents

Production of imidazole derivative

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Publication number
JPS6372679A
JPS6372679A JP61217767A JP21776786A JPS6372679A JP S6372679 A JPS6372679 A JP S6372679A JP 61217767 A JP61217767 A JP 61217767A JP 21776786 A JP21776786 A JP 21776786A JP S6372679 A JPS6372679 A JP S6372679A
Authority
JP
Japan
Prior art keywords
formula
donor
compound expressed
formaldehyde
ammonia
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
JP61217767A
Other languages
Japanese (ja)
Inventor
Tomio Yamakawa
富雄 山川
Hiromitsu Takeda
武田 裕光
Mitsuo Mazaki
光夫 真崎
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.)
Nippon Chemiphar Co Ltd
Original Assignee
Nippon Chemiphar 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 Nippon Chemiphar Co Ltd filed Critical Nippon Chemiphar Co Ltd
Priority to JP61217767A priority Critical patent/JPS6372679A/en
Publication of JPS6372679A publication Critical patent/JPS6372679A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE:To reading obtain cimetidine useful as an antiulcer remedial agent in good yield through a shortened reaction process, by reacting a specific raw material compound with both formaldehyde (donor) and ammonia (donor). CONSTITUTION:A raw material compound expressed by formula I (either one of A and B represents O and the other represents O or NOH) is reacted with both formaldehyde (donor) and ammonia (donor) preferably in a polar solvent such as acetic acid, etc., normally at room temperature - refluxing temperature to afford the aimed compound expressed by formula II. As for the raw material compound expressed by formula I, for example N-cyano-N'-methyl-N''-{2-[(2,3- dioxobutyl)thio]ethyl}guanidine, etc., are used. The compound expressed by formula I is obtained, for example, by reacting a compound expressed by formu la III with a compound expressed by formula IV.

Description

【発明の詳細な説明】 本発明は、イミダゾール誘導体の製造方法に関し、更に
詳細には、 式(1) で表わされるN−シアノード−メチル−マー〔2−(5
−メチル−4−イミダゾリルメチルチオ)エチル〕グア
ニジンの新規な製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing an imidazole derivative, and more particularly, to a method for producing an imidazole derivative, and more specifically, the present invention relates to a method for producing an imidazole derivative, and more particularly, to a method for producing an imidazole derivative, N-cyanode-methyl-mer [2-(5
-Methyl-4-imidazolylmethylthio)ethyl] A novel method for producing guanidine.

本発明方法で製造される式(1)で表わされる化合物は
、一般名金シメチシンといい、ヒスタミンH2受容体拮
抗゛作用に基づく胃酸分泌抑制作用を示し、抗潰瘍治療
剤として広く使用されている。
The compound represented by formula (1) produced by the method of the present invention is commonly called gold cimetisine, exhibits gastric acid secretion suppressing action based on histamine H2 receptor antagonism, and is widely used as an anti-ulcer therapeutic agent. .

シメチジンの製法については従来から徳々の方法が報告
されている。米国特許第4,013,678号における
製法によれば、シメチジンは塩基の存在下、4−クロロ
メチル−5−メチルイミダゾール塩酸塩t−N−シアノ
ード−メチル−y−(2−メルカ!トエチル)グアニジ
ンと反応させて製造されている。又、ドイツ特許第2.
211.454号には、式、Ha t −CH2−Q 
 C式中、Qは脱離基、H@tは4−メチル−5−イミ
ダゾリル基を示す)で表わされる化合物とH8CH2C
H2NH2を反応させて、式、H@ tCH2SCH2
CH2NH2で表わされる化合物を得、次いでこれ金、 はアリール基を示す)で表わ石れる化合物を反応させシ
メチジンを得ている。
As for the production method of cimetidine, Tokutoshi's method has been reported so far. According to the process in U.S. Pat. No. 4,013,678, cimetidine is converted into 4-chloromethyl-5-methylimidazole hydrochloride t-N-cyano-methyl-y-(2-merca!toethyl) in the presence of a base. It is produced by reacting with guanidine. Also, German Patent No. 2.
No. 211.454 contains the formula, Hat -CH2-Q
A compound represented by the formula C (where Q is a leaving group and H@t is a 4-methyl-5-imidazolyl group) and H8CH2C
React H2NH2 to form the formula H@tCH2SCH2
A compound represented by CH2NH2 was obtained, and this was then reacted with a compound represented by gold (indicates an aryl group) to obtain cimetidine.

しかしながらこれらの製造法は原料の問題や反応工程の
煩雑さなど多くの問題点があった。
However, these production methods have many problems such as problems with raw materials and complicated reaction steps.

そこで本発明者は、上記の欠点を解決すべく鋭意研究し
、本発明を完成し九。
Therefore, the present inventor conducted extensive research to solve the above-mentioned drawbacks and completed the present invention.

即ち、本発明は、 式(n)、 (n) で表わされる化合物に、ホルムアルデヒド又はホルムア
ルデヒド供与体及びアンモニア又はアンモニア供与棒金
反応させることを特徴とする、式(1) で表わされるイミメゾール肪導体の製造法に関する。
That is, the present invention provides an imimezole fatty conductor represented by formula (1), which is characterized in that a compound represented by formula (n) or (n) is reacted with formaldehyde or a formaldehyde donor and ammonia or an ammonia donor bar. Concerning the manufacturing method.

本発明方法において用いられるホルムアンプヒト供与体
としては、例えばパラホルムアルデヒド、ホA/ffリ
ン、トリオキサンなどがあげられ、アンモニア供与体と
しては、例えば、塩化アンモニウム、酢酸アンモニウム
、テトラメチレンへキサミン、リン酸二水素アンモニウ
ムなどがあげられる。
Examples of the formamp human donor used in the method of the present invention include paraformaldehyde, foA/ff phosphorus, trioxane, etc., and examples of the ammonia donor include ammonium chloride, ammonium acetate, tetramethylenehexamine, phosphorus, etc. Examples include ammonium dihydrogen acid.

式(I)の化合物とホルムアルデヒド又はホルムアルデ
ヒド供与体及びアンモニア又はアンモニア供与体との反
応は、極性溶媒、例えば、酢酸、アVコール、水あるい
はこれらの混合物が好ましく、室温から還流温度で行う
ことができる。
The reaction of the compound of formula (I) with formaldehyde or a formaldehyde donor and ammonia or an ammonia donor is preferably carried out in a polar solvent, such as acetic acid, alcohol, water or a mixture thereof, and can be carried out at room temperature to reflux temperature. can.

本発明方法における原料である式(n)の化合物は、た
とえば で示される方法によシ得ることができる。
The compound of formula (n) which is a raw material in the method of the present invention can be obtained, for example, by the method shown below.

できる。(US 2,821.555 )又、本発明方
法では で合成される化合物と、次亜硫酸ナトリウムを作用させ
るかは触媒でホルムアルデヒドを作用させた後、過剰の
ホルムアルデヒド又はホルムアルデヒド供与体及びアン
モニア又はアンモニア供与棒金反応させることによシシ
メチジンを得ることができる。
can. (US 2,821.555) In addition, in the method of the present invention, the compound synthesized by is reacted with sodium hyposulfite or formaldehyde with a catalyst, and then excess formaldehyde or formaldehyde donor and ammonia or ammonia donor are reacted. Cicimetidine can be obtained by a rolling reaction.

によシ合成できる。(JA、C3−互5438(”53
 ) 。
It can be synthesized easily. (JA, C3-mutual 5438 ("53
).

Bull、Ch@m、 Sea、 Jpm−39、25
17(’66 ) )従って本発明方法は従来方法に比
べ反応工程が短縮され、簡便で良好な収率でシメチジン
を得ることができ工業的KW用な方法である。
Bull, Ch@m, Sea, Jpm-39, 25
17 ('66)) Therefore, the method of the present invention has shorter reaction steps than the conventional method, and can obtain cimetidine in a simple and good yield, making it a method suitable for industrial KW.

以下に本発明の実施例1示し、本発明を更に詳細に説明
する。
Example 1 of the present invention will be shown below to explain the present invention in more detail.

実施例1 2N酢酸(35d)中にN−シアノード−メチル−N’
−(2−C(2,3−ジオキソプナル)チオ〕エナル)
グアニシン2.28&(10ミリモル)、塩化アンモニ
ウム0.8Il(15ミリモル)及びノ9ラホルムアル
デヒド0.45.9(15ミリモル)1−70℃で1.
5時間攪拌し友、溶媒を減圧留去し、残渣を2 N N
aOHで中和した後、さらに減圧留去し、残渣をメタノ
ールに溶解した。不純物をセライト濾過で除き、減圧貿
去後シリカrルカラム(クロロホルム−メタノール)K
かけ得られ九粉末をアセトニトリルよシ再結晶し、1.
23 IIのシメチジンを白色結晶性粉末として得た。
Example 1 N-cyano-methyl-N' in 2N acetic acid (35d)
-(2-C(2,3-dioxopnal)thio]enal)
Guanisine 2.28 (10 mmol), ammonium chloride 0.8 Il (15 mmol) and formaldehyde 0.45.9 (15 mmol) at 1-70°C.
After stirring for 5 hours, the solvent was distilled off under reduced pressure, and the residue was diluted with 2 N
After neutralizing with aOH, the residue was further distilled off under reduced pressure and the residue was dissolved in methanol. Impurities were removed by celite filtration, and after vacuum removal, silica column (chloroform-methanol) K
The resulting powder was recrystallized from acetonitrile, and 1.
Cimetidine 23 II was obtained as a white crystalline powder.

これは標品とmp。This is the standard item and mp.

IR,及び )[NMRによって一致し′ni認し友。IR, and ) [confirmed by NMR.

実施例2 N−シアノ−「−メチA=−N”−([2−(2−オキ
シイばノー3−オキソブチル)チオ〕エチル)グアニジ
ン2.57.9(10ミリモル)を水5−、エタノール
5idの混合溶媒中に加え、次亜硫酸ナトリウム3.4
85’(20ミリモル)t−加え、40℃で2時間攪拌
した。さらに酢酸4−を加えた後、塩化アンモニウム0
.8II(15ミリモル)及ヒパラホルムアルデヒド0
.459(15ミリモル)ヲ加え70℃で2時間攪拌し
た。r6媒を減圧留去し、残直にクロロホルム/メタノ
ール(1/1)?a液30−を加え九。不溶物をセライ
ト濾過で除き、溶媒を減圧留去後、シリカグルカラム(
クロロホルム−メタノール)で精製し、得られた粉末を
アセトニトリルよシ再結晶して0.921のシメチジン
を白色結晶性粉末として得た。
Example 2 2.57.9 (10 mmol) of N-cyano-"-methyA=-N"-([2-(2-oxyivano-3-oxobutyl)thio]ethyl)guanidine was dissolved in 5- of water and ethanol. 5id mixed solvent, sodium hyposulfite 3.4
85' (20 mmol) was added and stirred at 40°C for 2 hours. After adding more acetic acid 4-, ammonium chloride 0
.. 8II (15 mmol) and hyparaformaldehyde 0
.. 459 (15 mmol) was added and stirred at 70°C for 2 hours. The r6 medium was distilled off under reduced pressure, and the residue was directly diluted with chloroform/methanol (1/1). Add 30- of liquid a.9. Insoluble materials were removed by celite filtration, the solvent was distilled off under reduced pressure, and a silica glu column (
The resulting powder was recrystallized from acetonitrile to obtain 0.921 cimetidine as a white crystalline powder.

実施例3 N−シアノ−y−メチシーN”−([2−(2−オキシ
イζノー3−オキソグチル)チオ〕エチル)グアニジン
2.57IC10ミリモル)を3N−HO210m及び
メタノール10mの混合溶媒中に加え、37sホルムア
にテヒド水溶液10−を加え、40−45℃で5時間攪
拌した。反応混合物を冷却し、3 N−NaOHで中和
した後、塩化アンモニウム1.6N(30ミリモル)を
加え、さらにアンモニアガス會室温で2時間吹き込んだ
。溶媒を減圧留去し、残渣にクロロホルム/メタノ−ν
(1/1)溶液30−を加え友。不溶物をセライト−過
で除き、溶媒を減圧留去後シリカゲルカラム(クロロホ
ルム−メタノール)で精製した。得られたa′R色粉末
をアセトニトリルより再結晶し、白色結晶性粉末のシメ
チジンを得た。
Example 3 N-cyano-y-methicyN''-([2-(2-oxy-ζ-no-3-oxobutyl)thio]ethyl)guanidine (2.57 IC, 10 mmol) was added to a mixed solvent of 210 m of 3N-HO and 10 m of methanol. , 10 - of tehyde aqueous solution was added to 37s formua and stirred at 40-45°C for 5 hours. After cooling the reaction mixture and neutralizing with 3N-NaOH, 1.6N (30 mmol) of ammonium chloride was added, and further Ammonia gas was bubbled in at room temperature for 2 hours.The solvent was distilled off under reduced pressure, and the residue was dissolved in chloroform/methanol-ν.
(1/1) Add solution 30-. Insoluble matters were removed by filtration through Celite, and the solvent was distilled off under reduced pressure, followed by purification with a silica gel column (chloroform-methanol). The obtained a'R color powder was recrystallized from acetonitrile to obtain cimetidine as a white crystalline powder.

実施例4 N−シアノード−メチル−シー([2−(2−オキシイ
ミノ−3−オキソブチル)チオ〕エチル)グアニジン2
.57F(10ミリモA/)を3N−1(CjlO−及
びメタノール10ゴの混合M媒中に加え、37%ホルム
アルデヒド水浴液1O−t−加え40−45℃で5時間
攪拌した。反応混合物を冷却し、アンモニアガス金室温
で2時間吹き込んだ、溶媒を減圧留去し、残渣にクロロ
ホルム/メタノール(1/1)浴液30−を加え穴。不
溶物をセライト濾過で除き、溶媒を減圧留去後シリカグ
ルカラム(クロロホルム−メタノール)で特製した。得
られた微黄色粉末をアセトニトリルより再結晶し、白色
結晶性粉末のシメチジ/を得文。
Example 4 N-cyano-methyl-cy([2-(2-oxyimino-3-oxobutyl)thio]ethyl)guanidine 2
.. 57F (10 mmA/) was added to a mixed M medium of 3N-1 (CjlO- and methanol 10g), 10-t- of 37% formaldehyde water bath solution was added, and the mixture was stirred at 40-45°C for 5 hours.The reaction mixture was cooled. Then, ammonia gas was blown in at room temperature for 2 hours, the solvent was distilled off under reduced pressure, and 30 mm of chloroform/methanol (1/1) bath solution was added to the residue. It was then specially prepared using a silica glucolumn (chloroform-methanol).The obtained slightly yellow powder was recrystallized from acetonitrile to obtain Shimetidji/ as a white crystalline powder.

手続補正書(自発) 昭和61年11月1 日 特許庁長官 黒 1)明 雄 殿 1、事件の表示 昭和61年特許願第217767号 λ発明の名称 イミメゾール誌導体の製造法 3、補正tする者 事件との関係  特許出願人 住所 東京都千代田区岩本町2丁目2番3号4、補正命
令の日付   自 発 6、補正の内容
Procedural amendment (voluntary) November 1, 1985 Commissioner of the Japan Patent Office Black 1) Mr. Yu Akira 1, Indication of the case 1986 Patent Application No. 217767 λ Name of the invention Immezol magazine Manufacturing method of conductor 3, Amendment t Patent applicant address: 2-2-3-4, Iwamoto-cho, Chiyoda-ku, Tokyo Date of amendment order: Initiator 6 Contents of amendment

Claims (1)

【特許請求の範囲】 式 ▲数式、化学式、表等があります▼(式中、A、Bいず
れか一方がOで、他方はO又はNOHを示す。)で表わ
される化合物に、ホルムアルデヒド又はホルムアルデヒ
ド供与体及びアンモニア又はアンモニア供与体を反応さ
せることを特徴とする、式 ▲数式、化学式、表等があります▼ で表わされるイミダゾール誘導体の製造法。
[Claims] Formaldehyde or formaldehyde donor to a compound represented by the formula ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (In the formula, either A or B is O and the other is O or NOH.) A method for producing an imidazole derivative represented by the formula ▲There are mathematical formulas, chemical formulas, tables, etc.▼, which is characterized by reacting ammonia and an ammonia donor.
JP61217767A 1986-09-16 1986-09-16 Production of imidazole derivative Pending JPS6372679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61217767A JPS6372679A (en) 1986-09-16 1986-09-16 Production of imidazole derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61217767A JPS6372679A (en) 1986-09-16 1986-09-16 Production of imidazole derivative

Publications (1)

Publication Number Publication Date
JPS6372679A true JPS6372679A (en) 1988-04-02

Family

ID=16709412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61217767A Pending JPS6372679A (en) 1986-09-16 1986-09-16 Production of imidazole derivative

Country Status (1)

Country Link
JP (1) JPS6372679A (en)

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