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JPS584033B2 - Method for producing a novel pyrido[2,3-d]pyrimidine-2-thione derivative - Google Patents
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JPS584033B2 - Method for producing a novel pyrido[2,3-d]pyrimidine-2-thione derivative - Google Patents

Method for producing a novel pyrido[2,3-d]pyrimidine-2-thione derivative

Info

Publication number
JPS584033B2
JPS584033B2 JP56065721A JP6572181A JPS584033B2 JP S584033 B2 JPS584033 B2 JP S584033B2 JP 56065721 A JP56065721 A JP 56065721A JP 6572181 A JP6572181 A JP 6572181A JP S584033 B2 JPS584033 B2 JP S584033B2
Authority
JP
Japan
Prior art keywords
group
pyrimidine
general formula
halogen atom
producing
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
JP56065721A
Other languages
Japanese (ja)
Other versions
JPS56164189A (en
Inventor
井出博之
山崎舜造
山方健司
中川晃
本村敏治
野田寛治
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.)
Hisamitsu Pharmaceutical Co Inc
Original Assignee
Hisamitsu Pharmaceutical Co Inc
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 Hisamitsu Pharmaceutical Co Inc filed Critical Hisamitsu Pharmaceutical Co Inc
Priority to JP56065721A priority Critical patent/JPS584033B2/en
Publication of JPS56164189A publication Critical patent/JPS56164189A/en
Publication of JPS584033B2 publication Critical patent/JPS584033B2/en
Expired legal-status Critical Current

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  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

【発明の詳細な説明】 本発明は一般式(■) (式中、R1 は(1)フェニル基、又は(2)ハロゲ
ン原子、ニトロ基又はトリフルオロメチル基から選択さ
れた置換基が任意の位置に置換したフエニル基を、R2
は(1)低級アルキル基、(2)アルケニル基、(3)
アルキニル基、(4)−・ロゲン原子、水酸基、アルコ
キシ基、アセトキシ基、ビニルオキシ基、シクロアルキ
ル基、又はフエニル基から選択された置換基が置換した
低級アルキル基を意味する)で表わされる新規なピリド
〔2・3−d〕ピリミジンー2−チオン誘導体の製造法
に関するものである。
Detailed Description of the Invention The present invention is based on the general formula (■) (wherein R1 is (1) a phenyl group, or (2) a substituent selected from a halogen atom, a nitro group, or a trifluoromethyl group). The phenyl group substituted at the position R2
(1) lower alkyl group, (2) alkenyl group, (3)
(means a lower alkyl group substituted with a substituent selected from an alkynyl group, a (4)-rogen atom, a hydroxyl group, an alkoxy group, an acetoxy group, a vinyloxy group, a cycloalkyl group, or a phenyl group). The present invention relates to a method for producing a pyrido[2,3-d]pyrimidine-2-thione derivative.

更に詳しくは、一般式(I) (式中、R1及びR2は前記と同じ意味を有する)で表
わされる2−アニリノニコチン酸アミド誘導体に一般式
(■) (式中、Xはハロゲン原子及びイミダゾール基を意味す
る)で表わされる化合物(例えばチオホスゲン、1・1
−チオカルボニルジイミダゾール等)を反応させて前記
一般式(■)の新規なピリド〔2・3−d〕ピリミジン
ー2−チオン誘導体を得る製造法に関するものである。
More specifically, the 2-anilinonicotinamide derivative represented by the general formula (I) (wherein R1 and R2 have the same meanings as above) is combined with the general formula (■) (wherein, X is a halogen atom and imidazole group) (e.g. thiophosgene, 1.1
-thiocarbonyldiimidazole, etc.) to obtain a novel pyrido[2.3-d]pyrimidine-2-thione derivative of the general formula (■).

前記一般式(I)及び(■)において、R1及びR2に
ついて更に詳細に説明すると、R1の「ハロゲン原子、
ニトロ基又はトリフルオロメチル基が置換したフエニル
基」とは塩素、臭素、弗素、沃素等のハロゲン原子、ニ
トロ基又はトリフルオロメチル基等を任意の位置に1〜
2個置換したフエニル基を表わし、R2の低級アルキ4
はメチル、エチル、プロピル、ブチル、ヘキシル等を、
アルケニル基はアリル、2−メチルアリル等を、アルキ
ニル基はグロパルギル等を表わす。
In the general formulas (I) and (■), R1 and R2 will be explained in more detail.
"Phenyl group substituted with nitro group or trifluoromethyl group" means a halogen atom such as chlorine, bromine, fluorine, iodine, nitro group or trifluoromethyl group, etc. at any position from 1 to
Represents a 2-substituted phenyl group, and lower alkyl 4 of R2
is methyl, ethyl, propyl, butyl, hexyl, etc.
The alkenyl group represents allyl, 2-methylallyl, etc., and the alkynyl group represents glopargyl, etc.

本発明の方法を反応式で示せば次の通りである。The reaction formula of the method of the present invention is as follows.

本発明における反応は一般にテトラヒドロフラン、ジメ
チルホルムアミド、ジオキサン、ジグリム、ベンゼン、
トルエン、キシレン、アルコール等の不活性溶媒中で行
なわれるが、金属ナトリウム、金属カリウム、水素化ナ
トリウム、ナトリウムアミド、ナトリウムアルコラート
等のアルカリ金属及び金属化合物、ピリジン、トリアル
キルアミン等の有機塩基、又は水酸化アルカリ、炭酸ア
ルカリ等の無機塩基の存在下で行なうのが好ましく、特
に上記アルカリ金属及び金属化合物を使用すると極めて
好収量で目的化合物を得ることができる。
The reaction in the present invention generally involves tetrahydrofuran, dimethylformamide, dioxane, diglyme, benzene,
It is carried out in an inert solvent such as toluene, xylene, alcohol, etc., but it is also possible to use alkali metals and metal compounds such as sodium metal, potassium metal, sodium hydride, sodium amide, sodium alcoholate, organic bases such as pyridine, trialkylamines, etc. It is preferable to carry out the reaction in the presence of an inorganic base such as an alkali hydroxide or an alkali carbonate. Particularly when the above-mentioned alkali metals and metal compounds are used, the target compound can be obtained in an extremely good yield.

反応温度はチオホスゲンを使用する時は水冷下で行なう
のが好ましく、又1・1−チオ力ルポニルジイミダゾー
ルを使用する時は使用する溶媒の沸点下で一般に行なわ
れる。
The reaction temperature is preferably carried out under water cooling when thiophosgene is used, and is generally carried out at the boiling point of the solvent used when 1,1-thioluponyldiimidazole is used.

生成した反応混合物は、これから有機溶媒を留去し残渣
に水を加え析出した結晶を沢取し、アセトン、メタノー
ル等の有機溶媒より再結晶すると純品を得ることができ
る。
A pure product can be obtained from the generated reaction mixture by distilling off the organic solvent, adding water to the residue, collecting the precipitated crystals, and recrystallizing them from an organic solvent such as acetone or methanol.

本発明によって得られる化合物は、いずれも文献未載の
新規化合物であり、且つ顕著な鎮痛作用、抗炎症作用及
び中枢神経抑匍昨用を有し医薬品として産業上有用な化
合物である。
The compounds obtained by the present invention are all new compounds that have not been published in any literature, and have significant analgesic effect, anti-inflammatory effect, and central nervous system depressing effect, and are industrially useful compounds as pharmaceuticals.

以下に本発明の実施例を示す。Examples of the present invention are shown below.

実施例 1 2−(m−ニトロアニリノ)ニコチン酸メチルアミド1
.25gとテトラヒドロフラン20mlの溶液に約50
%水素化ナトリウム0. 4 8gを加え、30分間攪
拌後チオホスゲン23グを水冷下に徐徐に滴下したのち
室温で30分間放置した。
Example 1 2-(m-nitroanilino)nicotinic acid methylamide 1
.. Approximately 50 g in a solution of 25 g and 20 ml of tetrahydrofuran
% Sodium Hydride 0. After stirring for 30 minutes, 23 g of thiophosgene was slowly added dropwise while cooling with water, and the mixture was left at room temperature for 30 minutes.

次に過剰のチオホスゲンをメタノールーアンモニア溶液
で分解後、減圧下溶媒を留去し残渣に水を加えて結晶を
析出させ、析出した結晶をアセトンより再結晶すると、
淡黄色プリズム晶の1−(m−ニトロフエニル)−3−
メチル−2−チオ−4−オキソ−1・2・3・4−テト
ラヒドロピリド〔2・3−d〕ピリミジン1.5gを得
た。
Next, after decomposing excess thiophosgene with a methanol-ammonia solution, the solvent was distilled off under reduced pressure, water was added to the residue to precipitate crystals, and the precipitated crystals were recrystallized from acetone.
Pale yellow prismatic crystals of 1-(m-nitrophenyl)-3-
1.5 g of methyl-2-thio-4-oxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine was obtained.

この物質の融点及び元素分析値は次の通りであった。The melting point and elemental analysis values of this substance were as follows.

融点265−266℃ 元素分析値C14H10N4O3S 理論値C:53.51H:3.21 N:17.83 実測値C:53.63H:3.19 N:17.69 実施例2 2−(m−ブロムアニリノ)ニコチン酸エチルアミド3
.2gとテトラヒドロフラン50mlの溶液に50%の
水素化ナトリウム1.05gを加え室温で15分間攪拌
した。
Melting point 265-266°C Elemental analysis value C14H10N4O3S Theoretical value C: 53.51H: 3.21 N: 17.83 Actual value C: 53.63H: 3.19 N: 17.69 Example 2 2-(m-bromoanilino ) Nicotinic acid ethylamide 3
.. 1.05 g of 50% sodium hydride was added to a solution of 2 g and 50 ml of tetrahydrofuran, and the mixture was stirred at room temperature for 15 minutes.

次にチオホスゲンの3,451を適量のテトラヒドロフ
ランに希釈し氷冷下徐徐に滴下した。
Next, 3,451 thiophosgene was diluted with an appropriate amount of tetrahydrofuran and slowly added dropwise under ice cooling.

滴下後室温で30分間攪拌し、次いでメタノール−アン
モニア飽和溶液で水冷下過剰のチオホスゲンを分解した
After the dropwise addition, the mixture was stirred at room temperature for 30 minutes, and then excess thiophosgene was decomposed with a methanol-ammonia saturated solution under water cooling.

その後溶媒を留去し残渣に氷水を加え析出した結晶をメ
タノールより再結晶して、無色針状晶の1−(m−プロ
ムフエニル)−3−エチル−2−チオ−4−オキソ−1
・2・3・4−テトラヒドロピリド〔2・3−d〕ピリ
ミジン3.2gを得た。
Thereafter, the solvent was distilled off, ice water was added to the residue, and the precipitated crystals were recrystallized from methanol to give colorless needle-like crystals of 1-(m-promphenyl)-3-ethyl-2-thio-4-oxo-1.
- 3.2 g of 2,3,4-tetrahydropyrido[2,3-d]pyrimidine was obtained.

この物質の融点及び元素分析値は次の通りであつた。The melting point and elemental analysis values of this substance were as follows.

融点182−183℃ 元素分析値C15H12N3BrOS 理論値C:49.74H:3.34 N:11.60 実測値C:49.78H:3.31 N:11.59 実施例3 2−(m−トリノルオロメチルアニリノ)ニコチン酸エ
チルアミド3.lgをテトラヒドロフラン50mlに溶
解後50%水素化ナトリウム11を加え15分間攪拌後
、1・1−チオ力ルポニルジイミダゾール5.71を加
え室温で1時間攪拌し、次いで還流下に5時間反応せし
めた。
Melting point 182-183°C Elemental analysis value C15H12N3BrOS Theoretical value C: 49.74H: 3.34 N: 11.60 Actual value C: 49.78H: 3.31 N: 11.59 Example 3 2-(m-torino (fluoromethylanilino)nicotinic acid ethylamide 3. After dissolving 50% sodium hydride in 50 ml of tetrahydrofuran, 11 ml of 50% sodium hydride was added, and after stirring for 15 minutes, 5.71 g of 1,1-thioluponyldiimidazole was added, stirred for 1 hour at room temperature, and then reacted under reflux for 5 hours. Ta.

反応終了後、減圧下に溶媒を留去し残渣に氷水を加え析
出した結晶をメタノールより再結晶して、無色プリズム
晶(7)1−(m−トリフルオロメチルフエニル)−3
−エチル−2−チオー4−オキソ−1・2・3・4−テ
トラヒドロピリド〔2・3−d〕ピリミジン2.4gを
得た。
After the reaction, the solvent was distilled off under reduced pressure, ice water was added to the residue, and the precipitated crystals were recrystallized from methanol to give colorless prism crystals (7) 1-(m-trifluoromethylphenyl)-3.
2.4 g of -ethyl-2-thio-4-oxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine was obtained.

この物質の融点及び元素分析値は次の通りであった。The melting point and elemental analysis values of this substance were as follows.

融点158−159℃ 元素分析値C16H12F3N3OS 理論値C:54.70H:3.44 N:11.96 実測値C:54.69H:3.48 N:12.01 実施例4〜46 実施例1〜3の方法に準じて次表に示す化合物を好収率
で得た。
Melting point 158-159°C Elemental analysis value C16H12F3N3OS Theoretical value C: 54.70H: 3.44 N: 11.96 Actual value C: 54.69H: 3.48 N: 12.01 Examples 4-46 Examples 1- According to method 3, the compounds shown in the following table were obtained in good yield.

Claims (1)

【特許請求の範囲】 1 一般式(I) (式中、R1 は(1)フエニル基、又は(2)ハロゲ
ン原子、ニトロ基又はトリフルオロメチル基かラ選択さ
れた置換基が任意の位置に置換したフエニル基を R2
は(1)低級アルキル基、(2)アルケニル基、(3)
アルキニル基、又は(4)ハロゲン原子、水酸基、アル
コキシ基、アセトキシ基、ビニルオキシ基、シクロアル
キル基、又はフエニル基から選択された置換基が置換し
た低級アルキル基を意味する)で表わされる2−アニリ
ノニコチン酸アミド誘導体に一般式(■) CSX2 (■) (式中、Xはハロゲン原子及びイミダゾール基を意味す
る)で表わされる化合物を反応させることを特徴とする
一般式(■) (式中、R1及びR2は前記と同じ意味を有する)で表
わされる新規なピリド〔2・3−d〕ピリミジン−2−
チオン誘導体の製造法。
[Scope of Claims] 1 General formula (I) (wherein R1 is a substituent selected from (1) a phenyl group, or (2) a halogen atom, a nitro group, or a trifluoromethyl group, at any position) The substituted phenyl group is R2
(1) lower alkyl group, (2) alkenyl group, (3)
2-aniline represented by an alkynyl group, or (4) a lower alkyl group substituted with a substituent selected from a halogen atom, a hydroxyl group, an alkoxy group, an acetoxy group, a vinyloxy group, a cycloalkyl group, or a phenyl group. General formula (■) characterized by reacting a linonicotinic acid amide derivative with a compound represented by general formula (■) CSX2 (■) (in the formula, X means a halogen atom and an imidazole group) (in the formula , R1 and R2 have the same meanings as above).
Method for producing thione derivatives.
JP56065721A 1981-04-28 1981-04-28 Method for producing a novel pyrido[2,3-d]pyrimidine-2-thione derivative Expired JPS584033B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56065721A JPS584033B2 (en) 1981-04-28 1981-04-28 Method for producing a novel pyrido[2,3-d]pyrimidine-2-thione derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56065721A JPS584033B2 (en) 1981-04-28 1981-04-28 Method for producing a novel pyrido[2,3-d]pyrimidine-2-thione derivative

Publications (2)

Publication Number Publication Date
JPS56164189A JPS56164189A (en) 1981-12-17
JPS584033B2 true JPS584033B2 (en) 1983-01-24

Family

ID=13295159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56065721A Expired JPS584033B2 (en) 1981-04-28 1981-04-28 Method for producing a novel pyrido[2,3-d]pyrimidine-2-thione derivative

Country Status (1)

Country Link
JP (1) JPS584033B2 (en)

Also Published As

Publication number Publication date
JPS56164189A (en) 1981-12-17

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