JPS63183562A - Pyrrole derivative - Google Patents

Pyrrole derivative

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Publication number
JPS63183562A
JPS63183562A JP1311287A JP1311287A JPS63183562A JP S63183562 A JPS63183562 A JP S63183562A JP 1311287 A JP1311287 A JP 1311287A JP 1311287 A JP1311287 A JP 1311287A JP S63183562 A JPS63183562 A JP S63183562A
Authority
JP
Japan
Prior art keywords
compound
formula
lower alkyl
reaction
mixture
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
JP1311287A
Other languages
Japanese (ja)
Inventor
Hiroshi Hasegawa
博司 長谷川
Noriaki Shioiri
塩入 紀明
Kinichi Mogi
錦一 茂木
Takemitsu Asaoka
浅岡 健光
Junji Ono
大野 純司
Tadayuki Kuraishi
倉石 忠幸
Tatsuhiko Katori
香取 達彦
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.)
SSP Co Ltd
Original Assignee
SSP 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 SSP Co Ltd filed Critical SSP Co Ltd
Priority to JP1311287A priority Critical patent/JPS63183562A/en
Publication of JPS63183562A publication Critical patent/JPS63183562A/en
Pending legal-status Critical Current

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

NEW MATERIAL:The pyrrole derivative of formula I [X1 and X2 are halogen; R1 is H or COR3 (R3 is lower alkyl); R2 is H, halogen or lower alkyl; excluding the case that R1 is H and R2 is Br). EXAMPLE:2-(2-Hydroxybenzoyl)-3,4,5-tribromopyrrole. USE:An antimicrobial agent having broad antimicrobial spectrum, exhibiting excellent antimicrobial activity against bacteria, Candida, Trichophyton, phytopathogenic fungi, etc., and useful as pharmaceuticals, agricultural chemicals, antiseptics, etc. PREPARATION:The objective compound of formula I can be produced either by (a) the Fries rearrangement reaction of a compound of formula II, (b) the iodination and demethylation of a compound of formula III or (c) the acylation of a compound of formula Ia produced by the process (a).

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は新規なビロール誘導体、更に詳細には広範な抗
菌スペクトルを有し、医薬品、農薬及び防腐剤等として
有用な一ロール誘導体に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a novel virol derivative, and more particularly to a monorol derivative that has a broad antibacterial spectrum and is useful as a pharmaceutical, an agrochemical, a preservative, and the like.

〔従来の技術及びその問題点〕[Conventional technology and its problems]

従来より、人や植物に感染し、悪影響を及ぼす菌類に作
用する抗菌剤を開発すべく、多くの研究がなされている
。そして、その抗菌剤は、強い抗菌力と広い抗菌スペク
トルを有することが望ましい。広い抗菌スペクトルを有
する物質の例としては、ピロロマイクン類があり、これ
は細菌、白癖菌、植物病原菌等に対する抗菌作用を有す
ることが知られている(特開昭58−126863号)
Much research has been conducted to develop antibacterial agents that act on fungi that infect humans and plants and have adverse effects on them. It is desirable that the antibacterial agent has strong antibacterial activity and a broad antibacterial spectrum. Examples of substances with a broad antibacterial spectrum include pyrrolomicrons, which are known to have antibacterial effects against bacteria, white fungi, plant pathogens, etc. (Japanese Patent Application Laid-Open No. 126863/1983).
.

しかしながら、このピロロマイシン類はカンシダ菌に対
して無効であるため更に広い抗菌スペクトルを有する化
合物の開発が要望されていた。
However, since these pyrolomycins are ineffective against Cansida, there has been a demand for the development of compounds with a broader antibacterial spectrum.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

斯かる実状に鑑み、本発明者らは種々のピロール誘導体
を合成し、その抗菌作用を検討していたところ、下記の
式(I)で表わされるピロール誘導体が細菌、カンシダ
菌、白癖菌、植物病原菌等に対し優れた抗菌作用を有す
ることを見い出し、本発明を完成した。
In view of this situation, the present inventors synthesized various pyrrole derivatives and examined their antibacterial effects, and found that the pyrrole derivative represented by the following formula (I) was found to be effective against bacteria, Cansida fungi, Shirotai fungi, They discovered that it has an excellent antibacterial effect against plant pathogens, etc., and completed the present invention.

すなわち、本発明は次の一般式(I) (式中、Xl及びX、は同−又は異なってハロダン原子
を、R1は水素原子又は基−COR。
That is, the present invention is directed to the following general formula (I) (wherein, Xl and X are the same or different and represent a halodane atom, and R1 is a hydrogen atom or a group -COR).

(ここでR8は低級アルキル基を示す)を、R1は水素
原子、ハロゲン原子又は低級アルキル基を示す。ただし
% R1が水素原子であって% R2が臭素原子の場合
を除く)で表わされるピロール誘導体を提供するもので
ある。
(Here, R8 represents a lower alkyl group), and R1 represents a hydrogen atom, a halogen atom, or a lower alkyl group. provided that %R1 is a hydrogen atom and %R2 is a bromine atom).

本発明化合物(I)は、例えば次の方法のいずれかによ
シ製造することができる。
Compound (I) of the present invention can be produced, for example, by any of the following methods.

方法l: エステル型誘導体(I)にフリース転位反応を行なうこ
とによシ、化合物(fa )を製造するO (式中、Xl、X、及びR1は前述した意味を有する。
Method 1: Preparing the compound (fa) by subjecting the ester derivative (I) to a Fries rearrangement reaction.

) 本反応は塩化アルミニウム、塩化亜鉛、四塩化スズ等の
ルイス酸存在下、反応溶媒として二硫化炭素、スルホラ
ン、ニド四ベンゼン等を用い、100〜200℃の反応
温度で行なうことが好ましい。
) This reaction is preferably carried out in the presence of a Lewis acid such as aluminum chloride, zinc chloride, tin tetrachloride, etc., using carbon disulfide, sulfolane, nidotetrabenzene, etc. as a reaction solvent, and at a reaction temperature of 100 to 200°C.

方法2: 2−(2−メトキシベンゾイル) −4、5−ジハロビ
ロール(I)をヨウ素化し、次いで脱メチル化反応を行
なうことによ)化合物(Im’)を製造する。
Method 2: Compound (Im') is produced by iodizing 2-(2-methoxybenzoyl)-4,5-dihalobyrole (I) and then performing a demethylation reaction.

(厘)                      
               (Ia’)(式中、X
lは前述した意味を有する。)本反応は、まずジオキサ
ン−水などの混合溶媒中でヨウ化ナトリウム又はヨウ化
カリウムの存在下にヨウ素を反応させることによシ容易
にヨウ素化される。次の脱メチル化反応は、常法に従い
塩化アルミニウム、三臭化ホウ素等のルイス酸を反応さ
せることによル行なわれる。
(Lin)
(Ia') (wherein, X
l has the meaning given above. ) In this reaction, iodine is easily iodinated by first reacting iodine in the presence of sodium iodide or potassium iodide in a mixed solvent such as dioxane-water. The next demethylation reaction is carried out by reacting with a Lewis acid such as aluminum chloride or boron tribromide according to a conventional method.

方法3: 化合物(Im )をアシル化することによシ化合物(I
b )を製造する。
Method 3: Compound (Im) is acylated to form compound (I)
b) Manufacture.

(rb ) (式中、Xl + Xl + R1及びR3は前述した
意味を有する。) 本反応は、通常のアフル化反応、例えば低級脂肪酸の無
水物、酸ノ・ライド等を塩基の存在下に反応させること
により行なわれる。
(rb) (In the formula, Xl + Xl + R1 and R3 have the above-mentioned meanings.) This reaction is a general affilation reaction, such as lower fatty acid anhydride, acid oride, etc., in the presence of a base. This is done by reacting.

なお、原料であるエステル型誘導体(夏)は、例えば次
式に従い3+ 415− ) IJ /Nロビロールー
2−カルボン酸又はその反応性誘導体とジエノール類を
反応させることによシ製造される。
The ester derivative (summer) which is a raw material is produced, for example, by reacting 3+ 415- ) IJ /N robirole-2-carboxylic acid or a reactive derivative thereof with a dienol according to the following formula.

(式中、Xl、X、及びR,は前述した意味を有する) 反応は常法に従い、例えば、3,4.5−トリハロピロ
Nルー2−カルボン酸トフェノール類を無水トリフルオ
ロ酢酸等の縮合剤の存在下に反応させるか、3,4.5
−)IJハロビロール−2−カルボン酸ハライドをフェ
ノール類と反応させることによ)行なわれる。
(In the formula, Xl, 3,4.5
-) by reacting IJ halobirol-2-carboxylic acid halide with phenols).

〔作用〕[Effect]

叙上の如くして得られた本発明の代表的化合物について
その抗菌作用を調べた。比較化合物としてピロロマイク
ンli’、 (特開昭58−126863号)を用い、
その結果を第1表に示す。なお、表中の化合物番号は、
後記実施例中に示したものと同一である。
The antibacterial activity of representative compounds of the present invention obtained as described above was investigated. Using pyrrolomicun li' (Japanese Unexamined Patent Publication No. 126863/1983) as a comparison compound,
The results are shown in Table 1. In addition, the compound numbers in the table are
This is the same as that shown in Examples below.

以下余白 〔発明の効果〕 斯くして得られた本発明化合物(I)は、細菌、カンシ
ダ菌、白癖菌、植物病原菌等に対し、優れた抗菌活性を
有するので、医薬、農薬及び防腐剤等として有用なもの
である。
The following margins [Effects of the Invention] The compound (I) of the present invention thus obtained has excellent antibacterial activity against bacteria, Cansida fungi, Lepidoptera fungi, plant pathogenic bacteria, etc. It is useful as such.

〔実施例〕〔Example〕

次に実施例を挙げ、本発明を説明する。 Next, the present invention will be explained with reference to Examples.

実施例1 3.4.5−トリブロモビロール−2−カルデン酸2.
2Ofを含むトルエン20d溶液に、フェノール1.7
8 Fと無水トリフルオロ酢酸Z7dを加え、室温で約
15時間攪拌した。反応液を氷水4Qmに注加し、エー
テルで抽出した。抽出液を2%炭酸水素す) IJウム
水溶液、IN塩酸、水で順次洗浄し、無水硫酸す) I
Jウムで乾燥後、減圧留去した。残留物を二硫化炭素5
0dに溶解し、塩化アルミニウム0.8 Ofを加え、
1時間加熱還流した。次いで二硫化炭素を留去し、反応
温度を約160℃に上昇させ、1時間加熱攪拌した。
Example 1 3.4.5-Tribromovirol-2-caldenic acid 2.
Phenol 1.7 in a toluene 20d solution containing 2Of
8F and trifluoroacetic anhydride Z7d were added, and the mixture was stirred at room temperature for about 15 hours. The reaction solution was poured into 4Qm of ice water and extracted with ether. Wash the extract with 2% hydrogen carbonate solution, IN hydrochloric acid, and water in sequence, and dilute with anhydrous sulfuric acid.
After drying with Jum, the residue was distilled off under reduced pressure. The residue is carbon disulfide5
0d, add 0.8Of aluminum chloride,
The mixture was heated under reflux for 1 hour. Next, carbon disulfide was distilled off, the reaction temperature was raised to about 160°C, and the mixture was heated and stirred for 1 hour.

今後、反応物にIN塩酸20dを注加し、エーテルで抽
出した。抽出液を水洗し、無水硫酸す) IJウムで乾
燥後、濃縮した。残留物をシリカゲルカラムクロマトグ
ラフィーに付し、クロロホルム流出画分から得られた淡
黄色結晶を四塩化炭素よシ再結晶すると、2−(2−ハ
イトロキシペンゾイル)−3,4,5−トリブロモビロ
ール(化合物1)1.a5rを淡黄色結晶として得た。
Thereafter, 20 d of IN hydrochloric acid was added to the reaction mixture and extracted with ether. The extract was washed with water, dried over anhydrous sulfuric acid, and concentrated. The residue was subjected to silica gel column chromatography, and the pale yellow crystals obtained from the chloroform effluent fraction were recrystallized from carbon tetrachloride to give 2-(2-hydroxypenzoyl)-3,4,5-tribromobi Roll (compound 1)1. a5r was obtained as pale yellow crystals.

実施例2 11一 実施例1で得られた化合物10.50fをピリシン3d
に溶解し、無水酢酸31tlに加え、室温で4時間攪拌
した。反応液を氷水201117に注加し、エーテルで
抽出した。抽出液をIN塩酸、2%炭酸水素す) IJ
ウム水溶液、水で順次洗浄し、無水硫酸ナトリウムで乾
燥後、濃縮した。析出した結晶をイソゾロビルエーテル
−アセトン混液よシ再結晶すると、2−(2−アセトキ
シベンゾイル)−3,4,5−トリブロモビロール(化
合物2)0.4srを無色結晶として得た。
Example 2 Compound 10.50f obtained in Example 1 was added to pyricin 3d.
The mixture was added to 31 tl of acetic anhydride, and the mixture was stirred at room temperature for 4 hours. The reaction solution was poured into ice water 201117 and extracted with ether. Add the extract to IN hydrochloric acid, 2% hydrogen carbonate) IJ
The mixture was washed successively with an aqueous solution of sodium chloride and water, dried over anhydrous sodium sulfate, and then concentrated. The precipitated crystals were recrystallized from a mixture of isozolobyl ether and acetone to obtain 0.4 sr of 2-(2-acetoxybenzoyl)-3,4,5-tribromovirol (compound 2) as colorless crystals.

実施例3 2−(2−メトキシベンゾイル) −4、5−ゾクロロ
ビ四−ル0.54 fにジオキサン−水混液(I:1)
8m/とl N  NaOH水溶液2dを加えて溶かし
、ヨウ素0.6 Ofとヨウ化ナトリウム0.72 F
を含む水溶液6wLlを加え、室温で15時間攪拌した
。反応液にINチオ硫酸ナトリウム水溶液20mを加え
て1時間攪拌した。析出した結晶をr取し、水洗後乾燥
するl!:%2−(2−メトキシベンゾイル)−3−ヨ
ード−4,5−シクロルビロール0.62 fを無色結
晶として得た。この結晶0.32 fをジクロルメタン
20−に溶解し、塩化アルミニウム0.66fを加え、
室温で5時間攪拌した。反応液にIN塩酸2011E/
を注加し、ジクロルメタンで抽出した。抽出液を水洗し
、無水硫酸す) IJウムで乾燥後、濃縮した。析出し
た結晶を四塩化炭素よシ再結晶すると、2−(2−ハイ
ドロキシベンゾイル)−3−ヨートー4.5−ジクロロ
ビロール0.26 fを淡黄色結晶として得た。
Example 3 Dioxane-water mixture (I:1) to 0.54 f of 2-(2-methoxybenzoyl)-4,5-zochlorobi-4-yl
Add and dissolve 2 d of 8 m/l N NaOH aqueous solution, 0.6 Of iodine and 0.72 F of sodium iodide.
6wLl of an aqueous solution containing was added, and the mixture was stirred at room temperature for 15 hours. 20 ml of IN sodium thiosulfate aqueous solution was added to the reaction solution, and the mixture was stirred for 1 hour. Collect the precipitated crystals, wash them with water, and then dry them! :%2-(2-methoxybenzoyl)-3-iodo-4,5-cycloruvirol 0.62 f was obtained as colorless crystals. Dissolve 0.32 f of this crystal in 20-dichloromethane, add 0.66 f of aluminum chloride,
The mixture was stirred at room temperature for 5 hours. IN hydrochloric acid 2011E/
was added and extracted with dichloromethane. The extract was washed with water, dried over anhydrous sulfuric acid, and concentrated. The precipitated crystals were recrystallized from carbon tetrachloride to obtain 0.26 f of 2-(2-hydroxybenzoyl)-3-ioto-4,5-dichloropyrol as pale yellow crystals.

実施例4〜10 実施例1又は2のいずれかと同様にして第2表に示す化
合物番号4〜10の化合物を調製した。なお、同表中に
は化合物1〜3の物性も併せて示した。
Examples 4 to 10 Compounds Nos. 4 to 10 shown in Table 2 were prepared in the same manner as in either Example 1 or 2. In addition, the physical properties of Compounds 1 to 3 are also shown in the same table.

以下余白 11開口UG3−183562  (8)1、 事件の
表示 昭和62年特許願第 13112  号2、 発明の名
称 ビq−ル誘導体 3、補正をする者 事件との関係  出願人 名 称 ニスニス製薬株式会社 6、補正の゛対象 明細書の「発明の詳細な説明」の欄 7、補正の内容 (I)明細書中、第4頁第3行 r Rsは低級アルキル基」とあるを 「RsはC!〜C4の低級アルキル基」と訂正する。
Margin below 11 openings UG3-183562 (8) 1. Indication of the case Patent Application No. 13112 of 1988 2. Name of the invention Beer Q-derivative 3. Person making the amendment Relationship to the case Applicant name Name Nisnis Pharmaceutical Co., Ltd. 6. Column 7 of "Detailed Description of the Invention" of the subject specification of the amendment, contents of the amendment (I) In the specification, page 4, line 3 r.Rs is a lower alkyl group instead of "Rs is a C !~C4 lower alkyl group” is corrected.

(2)同第15頁第3行 [実施例4〜IOJとあるを 「実施例4〜11」と訂正する。(2) Page 15, line 3 [Example 4 - IOJ Corrected to "Examples 4 to 11."

(3)同第15頁第5行 [化合物番号4〜IOJとあるを 「化合物番号4〜11」と訂正する。(3) Page 15, line 5 [Compound number 4 ~ IOJ Correct to "Compound Nos. 4-11".

(4)同第17頁「第2表」の末尾に次の欄を挿入する
(4) Insert the following column at the end of "Table 2" on page 17.

Claims (1)

【特許請求の範囲】 1、次の一般式( I ) ▲数式、化学式、表等があります▼( I ) (式中、X_1及びX_2は同一又は異なつてハロゲン
原子を、R_1は水素原子又は基−COR_3(ここで
R_3は低級アルキル基を示す)を、R_2は水素原子
、ハロゲン原子又は低級アルキル基を示す。ただし、R
_1が水素原子であつてR_2が臭素原子の場合を除く
) で表わされるピロール誘導体。
[Claims] 1. The following general formula (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼(I) (In the formula, X_1 and X_2 are the same or different and represent a halogen atom, and R_1 is a hydrogen atom or a group. -COR_3 (here, R_3 represents a lower alkyl group), and R_2 represents a hydrogen atom, a halogen atom, or a lower alkyl group. However, R
A pyrrole derivative represented by (except when _1 is a hydrogen atom and R_2 is a bromine atom).
JP1311287A 1987-01-22 1987-01-22 Pyrrole derivative Pending JPS63183562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1311287A JPS63183562A (en) 1987-01-22 1987-01-22 Pyrrole derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1311287A JPS63183562A (en) 1987-01-22 1987-01-22 Pyrrole derivative

Publications (1)

Publication Number Publication Date
JPS63183562A true JPS63183562A (en) 1988-07-28

Family

ID=11824072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1311287A Pending JPS63183562A (en) 1987-01-22 1987-01-22 Pyrrole derivative

Country Status (1)

Country Link
JP (1) JPS63183562A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10414725B2 (en) * 2015-07-16 2019-09-17 Board Of Regents Of The University Of Nebraska Pyrrolomycins and methods of using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10414725B2 (en) * 2015-07-16 2019-09-17 Board Of Regents Of The University Of Nebraska Pyrrolomycins and methods of using the same
US10954192B2 (en) 2015-07-16 2021-03-23 Board Of Regents Of The University Of Nebraska Pyrrolomycins and methods of using the same

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