JP2013112658A - Production method for n-(iodophenyl)pyrimidinylamine derivative - Google Patents

Production method for n-(iodophenyl)pyrimidinylamine derivative Download PDF

Info

Publication number
JP2013112658A
JP2013112658A JP2011261321A JP2011261321A JP2013112658A JP 2013112658 A JP2013112658 A JP 2013112658A JP 2011261321 A JP2011261321 A JP 2011261321A JP 2011261321 A JP2011261321 A JP 2011261321A JP 2013112658 A JP2013112658 A JP 2013112658A
Authority
JP
Japan
Prior art keywords
pyrimidinylamine
iodophenyl
derivative
mmol
yield
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
JP2011261321A
Other languages
Japanese (ja)
Other versions
JP5724851B2 (en
Inventor
Tatsuya Fujita
達也 藤田
Yohei Noro
陽平 野呂
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP2011261321A priority Critical patent/JP5724851B2/en
Publication of JP2013112658A publication Critical patent/JP2013112658A/en
Application granted granted Critical
Publication of JP5724851B2 publication Critical patent/JP5724851B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To suppress generation of byproducts so as to improve production efficiency and purification efficiency of an N-(iodophenyl)pyrimidinylamine derivative, when producing the N-(iodophenyl)pyrimidinylamine derivative.SOLUTION: There is provided a production method for an N-(iodophenyl)pyrimidinylamine derivative, which comprises a step of reacting an iodoaniline derivative and a 2-chloropyrimidine derivative in an aqueous solvent in the presence of an acid selected from the group consisting of hydrochloric acid, phosphoric acid, acetic acid and methanesulfonic acid at a temperature of 40-75°C to provide the N-(iodophenyl)pyrimidinylamine derivative represented by general formula (III), wherein R, Rand Rrepresent each independently H or 1-5C alkyl.

Description

本発明は、N−(ヨードフェニル)ピリミジニルアミン誘導体の製造方法に関する。   The present invention relates to a method for producing an N- (iodophenyl) pyrimidinylamine derivative.

N−(ヨードフェニル)ピリミジニルアミン誘導体は、優れた炎症性腸疾患治療効果を有するアリルグリシン誘導体の合成中間体として有用な化合物である。N−(ヨードフェニル)ピリミジニルアミン誘導体の製造方法としては、4−ヨードアニリンと2−クロロピリミジンとを、酢酸の存在下、1,4−ジオキサン溶媒中で反応させる方法が開示されている(特許文献1)。   N- (iodophenyl) pyrimidinylamine derivatives are useful compounds as synthetic intermediates for allylglycine derivatives having excellent therapeutic effects on inflammatory bowel disease. As a method for producing an N- (iodophenyl) pyrimidinylamine derivative, a method is disclosed in which 4-iodoaniline and 2-chloropyrimidine are reacted in a 1,4-dioxane solvent in the presence of acetic acid (patent). Reference 1).

また、ヨードアニリン誘導体と2−クロロピリミジン誘導体との反応例としては、塩酸の存在下、メタノール:水=36:1の溶媒中、80℃で34時間反応させる方法(特許文献2)、塩酸の存在下、エタノール:水=1:4の溶媒中、還流下で18時間反応させる方法(特許文献3)、炭酸水素カリウムの存在下、テトラヒドロフラン:水=1:1.2の溶媒中、室温で63時間反応させる方法(非特許文献1)、2−メトキシエタノール:水=2.6:1の溶媒中、還流下で10時間反応させる方法(特許文献4)が報告されている。   Examples of the reaction between the iodoaniline derivative and the 2-chloropyrimidine derivative include a method of reacting in a solvent of methanol: water = 36: 1 in the presence of hydrochloric acid at 80 ° C. for 34 hours (Patent Document 2), In the presence of ethanol: water = 1: 4, a method of reacting under reflux for 18 hours (Patent Document 3), in the presence of potassium hydrogen carbonate, tetrahydrofuran: water = 1: 1.2 in a solvent at room temperature A method of reacting for 63 hours (Non-Patent Document 1) and a method of reacting in a solvent of 2-methoxyethanol: water = 2.6: 1 for 10 hours under reflux (Patent Document 4) have been reported.

国際公開第2006/068213号International Publication No. 2006/068213 国際公開第2008/140420号International Publication No. 2008/140420 国際公開第2008/050096号International Publication No. 2008/050096 国際公開第2001/029045号International Publication No. 2001/029045

Fenniriら、The Journal of Organic Chemistry、2008年、73巻、3号、p.931−939Fenniri et al., The Journal of Organic Chemistry, 2008, 73, 3, p. 931-939

しかしながら、上記の方法では、N−(ヨードフェニル)ピリミジニルアミン誘導体の収率が悪く、100℃の高温条件下で最適化を試みた場合であっても、工業的生産に適した収率が得られないのが現状であった。また、上記の方法では、脱ヨウ素体をはじめとする副生成物の生成率も高く、医薬品の合成中間体として利用するには、N−(ヨードフェニル)ピリミジニルアミン誘導体の精製効率を高める必要があり、製造方法の改善が望まれていた。   However, in the above method, the yield of the N- (iodophenyl) pyrimidinylamine derivative is poor, and even when optimization is attempted under a high temperature condition of 100 ° C., a yield suitable for industrial production is obtained. The current situation is that it is not possible. Moreover, in the above method, the production rate of by-products including deiodinated compounds is high, and in order to use them as synthetic intermediates for pharmaceuticals, it is necessary to increase the purification efficiency of N- (iodophenyl) pyrimidinylamine derivatives. Therefore, improvement of the manufacturing method has been desired.

そこで本発明は、N−(ヨードフェニル)ピリミジニルアミン誘導体を製造する際、副生成物の生成を抑制し、N−(ヨードフェニル)ピリミジニルアミン誘導体の製造効率及び精製効率を高めることを目的とする。   Therefore, the present invention aims to suppress the production of by-products when producing an N- (iodophenyl) pyrimidinylamine derivative and to increase the production efficiency and purification efficiency of the N- (iodophenyl) pyrimidinylamine derivative. .

本発明者らは、上記課題を解決するために鋭意研究を重ねた結果、溶媒として水を用いることにより、従来方法と比較して極めて高収率であり、かつ、温和な条件下でN−(ヨードフェニル)ピリミジニルアミン誘導体を製造できることを見出し、本発明を完成させた。   As a result of intensive studies to solve the above problems, the present inventors have obtained extremely high yields compared to conventional methods by using water as a solvent, and N-under mild conditions. It has been found that (iodophenyl) pyrimidinylamine derivatives can be produced, and the present invention has been completed.

すなわち、本発明は、N−(ヨードフェニル)ピリミジニルアミン誘導体の製造方法であり、一般式(I)で示されるヨードアニリン誘導体と、一般式(II)で示される2−クロロピリミジン誘導体とを、水溶媒中、塩酸、リン酸、酢酸及びメタンスルホン酸からなる群から選択される酸の存在下、40〜75℃の温度で反応させ、一般式(III)で示されるN−(ヨードフェニル)ピリミジニルアミン誘導体を得る工程を備える、製造方法を提供する。

Figure 2013112658
Figure 2013112658
[式中、R、R及びRは、それぞれ独立に水素原子又は炭素数1〜5のアルキル基を表す。]
Figure 2013112658
[式中、R、R及びRは、それぞれ独立に水素原子又は炭素数1〜5のアルキル基を表す。] That is, the present invention is a method for producing an N- (iodophenyl) pyrimidinylamine derivative, comprising an iodoaniline derivative represented by the general formula (I) and a 2-chloropyrimidine derivative represented by the general formula (II). N- (iodophenyl) represented by the general formula (III) is reacted at a temperature of 40 to 75 ° C. in the presence of an acid selected from the group consisting of hydrochloric acid, phosphoric acid, acetic acid and methanesulfonic acid in an aqueous solvent. A production method comprising the step of obtaining a pyrimidinylamine derivative is provided.
Figure 2013112658
Figure 2013112658
[In formula, R < 1 >, R < 2 > and R < 3 > represent a hydrogen atom or a C1-C5 alkyl group each independently. ]
Figure 2013112658
[In formula, R < 1 >, R < 2 > and R < 3 > represent a hydrogen atom or a C1-C5 alkyl group each independently. ]

上記の製造方法は、上記2−クロロピリミジン誘導体の量が上記ヨードアニリン誘導体に対して1.2〜2モル当量であり、上記酸の量が上記ヨードアニリン誘導体に対して0.2〜2モル当量であることが好ましい。   In the production method, the amount of the 2-chloropyrimidine derivative is 1.2 to 2 molar equivalents relative to the iodoaniline derivative, and the amount of the acid is 0.2 to 2 moles relative to the iodoaniline derivative. It is preferable that it is equivalent.

上記2−クロロピリミジン誘導体の量が上記ヨードアニリン誘導体に対して1.2モル当量未満ではやや収率が低下し、2モル当量以上用いても反応に影響はないが、過剰に用いた2−クロロピリミジン誘導体を分離する必要が生じるため好ましくない。また、上記酸の量が上記ヨードアニリン誘導体に対して0.2〜2モル当量である場合に良好な収率でN−(ヨードフェニル)ピリミジニルアミン誘導体が得られる。   When the amount of the 2-chloropyrimidine derivative is less than 1.2 molar equivalents relative to the iodoaniline derivative, the yield is slightly reduced, and even when 2 molar equivalents or more are used, the reaction is not affected, but the excess 2- Since it is necessary to separate the chloropyrimidine derivative, it is not preferable. Moreover, when the amount of the acid is 0.2 to 2 molar equivalents relative to the iodoaniline derivative, an N- (iodophenyl) pyrimidinylamine derivative can be obtained with a good yield.

また上記製造方法は、R、R及びRがそれぞれ独立に水素原子又はメチル基であることが好ましく、R及びRがそれぞれ独立に水素原子又はメチル基であり、Rが水素原子であり、かつ、反応温度が50〜60℃であることがより好ましい。 In the above production method, R 1 , R 2 and R 3 are preferably each independently a hydrogen atom or a methyl group, R 1 and R 3 are each independently a hydrogen atom or a methyl group, and R 2 is a hydrogen atom. More preferably, it is an atom and the reaction temperature is 50 to 60 ° C.

反応温度が50〜60℃である場合には、特に高い収率でN−(ヨードフェニル)ピリミジニルアミン誘導体が得られるからである。   This is because when the reaction temperature is 50 to 60 ° C., an N- (iodophenyl) pyrimidinylamine derivative can be obtained with a particularly high yield.

本発明の製造方法によれば、従来方法と比較して副反応を顕著に抑制でき、温和な条件下で、一般式(III)で示されるN−(ヨードフェニル)ピリミジニルアミン誘導体を極めて高い収率で製造できる。また、本発明の製造方法は、医薬品の合成中間体として利用可能な高純度の上記N−(ヨードフェニル)ピリミジニルアミン誘導体を得るのに好適であり、工業的生産にも利用できる。   According to the production method of the present invention, the side reaction can be remarkably suppressed as compared with the conventional method, and the N- (iodophenyl) pyrimidinylamine derivative represented by the general formula (III) is obtained at a very high yield under mild conditions. Can be manufactured at a rate. In addition, the production method of the present invention is suitable for obtaining the above-described high-purity N- (iodophenyl) pyrimidinylamine derivative that can be used as a pharmaceutical intermediate, and can also be used for industrial production.

本発明のN−(ヨードフェニル)ピリミジニルアミン誘導体の製造方法は、一般式(I)で示されるヨードアニリン誘導体と、一般式(II)で示される2−クロロピリミジン誘導体とを、水溶媒中、塩酸、リン酸、酢酸及びメタンスルホン酸からなる群から選択される酸の存在下、40〜75℃の温度で反応させ、一般式(III)で示されるN−(ヨードフェニル)ピリミジニルアミン誘導体を得る工程を備えることを特徴としている。

Figure 2013112658
Figure 2013112658
[式中、R、R及びRは、それぞれ独立に水素原子又は炭素数1〜5のアルキル基を表す。]
Figure 2013112658
[式中、R、R及びRは、それぞれ独立に水素原子又は炭素数1〜5のアルキル基を表す。] The method for producing an N- (iodophenyl) pyrimidinylamine derivative of the present invention comprises an iodoaniline derivative represented by the general formula (I) and a 2-chloropyrimidine derivative represented by the general formula (II) in an aqueous solvent. Reaction is performed at a temperature of 40 to 75 ° C. in the presence of an acid selected from the group consisting of hydrochloric acid, phosphoric acid, acetic acid and methanesulfonic acid, and an N- (iodophenyl) pyrimidinylamine derivative represented by the general formula (III) is obtained. It is characterized by comprising a step of obtaining.
Figure 2013112658
Figure 2013112658
[In formula, R < 1 >, R < 2 > and R < 3 > represent a hydrogen atom or a C1-C5 alkyl group each independently. ]
Figure 2013112658
[In formula, R < 1 >, R < 2 > and R < 3 > represent a hydrogen atom or a C1-C5 alkyl group each independently. ]

上記の一般式(I)で示されるヨードアニリン誘導体及び一般式(II)で示される2−クロロピリミジン誘導体は、試薬メーカーから購入することにより入手できる。   The iodoaniline derivative represented by the above general formula (I) and the 2-chloropyrimidine derivative represented by the general formula (II) can be obtained by purchasing from a reagent manufacturer.

上記の一般式(II)で示される2−クロロピリミジン誘導体は、例えば、国際公開第2006/068213号、米国特許出願公開第2005/0234046号明細書又はOrganic Syntheses、1955年、第35巻、p.34−35に記載の方法に従って化学合成することも可能である。   The 2-chloropyrimidine derivative represented by the above general formula (II) is described in, for example, WO 2006/068213, US Patent Application Publication No. 2005/0234046 or Organic Synthesis, 1955, Vol. 35, p. . It is also possible to chemically synthesize according to the method described in 34-35.

上記の製造方法では、R及びRは、それぞれ独立て水素原子又はメチル基であることが好ましく、Rは、水素原子又はメチル基であることが好ましく、水素原子であることがより好ましい。 In the above production method, R 1 and R 3 are preferably each independently a hydrogen atom or a methyl group, and R 2 is preferably a hydrogen atom or a methyl group, more preferably a hydrogen atom. .

上記の一般式(II)で示される2−クロロピリミジン誘導体の量としては、上記ヨードアニリン誘導体に対して1.2〜2モル当量が好ましく、1.3〜1.8モル当量がより好ましく、上記の製造方法に用いられる酸の量としては、上記ヨードアニリン誘導体に対して0.2〜2モル当量であることが好ましく、0.8〜1.2モル当量がより好ましい。なお、酸の種類としては、塩酸が最も好ましい。   The amount of the 2-chloropyrimidine derivative represented by the general formula (II) is preferably 1.2 to 2 molar equivalents, more preferably 1.3 to 1.8 molar equivalents with respect to the iodoaniline derivative. The amount of acid used in the above production method is preferably 0.2 to 2 molar equivalents, and more preferably 0.8 to 1.2 molar equivalents, relative to the iodoaniline derivative. As the acid type, hydrochloric acid is most preferable.

また、上記の製造方法における反応温度は、45〜65℃が好ましく、50〜60℃がより好ましく、反応時間は、4〜30時間の範囲が好適である。   The reaction temperature in the above production method is preferably 45 to 65 ° C, more preferably 50 to 60 ° C, and the reaction time is preferably in the range of 4 to 30 hours.

上記の製造方法で得られる一般式(III)で示されるN−(ヨードフェニル)ピリミジニルアミン誘導体は、例えば、カラムクロマトグラフィー、薄層クロマトグラフィー、再結晶、再沈殿又は蒸留といった方法で精製できる。当業者であれば、具体的な対象化合物に合った方法をこれらの方法から選択したり、組み合わせたりすることが可能であり、精製方法を容易に最適化できる。   The N- (iodophenyl) pyrimidinylamine derivative represented by the general formula (III) obtained by the above production method can be purified by a method such as column chromatography, thin layer chromatography, recrystallization, reprecipitation or distillation. A person skilled in the art can select or combine methods suitable for a specific target compound, and can easily optimize the purification method.

本発明者らは、N−(ヨードフェニル)ピリミジニルアミン誘導体の製造効率及び精製効率を改善すべく、N−(ヨードフェニル)ピリミジニルアミン誘導体の製造方法の研究を行った結果、低収率の主な原因はヨードフェニル基の炭素−ヨウ素結合が切断され、脱ヨウ素体が生成する副反応であることを見出した(スキーム1)。この炭素−ハロゲン結合の切断は、ヨードアニリン誘導体に特有の反応であり、クロロアニリン誘導体又はブロモアニリン誘導体と2−クロロピリミジン誘導体の反応では見られないことを明らかにし、本発明を完成させるに至った。

Figure 2013112658
As a result of studying the production method of N- (iodophenyl) pyrimidinylamine derivatives in order to improve the production efficiency and purification efficiency of N- (iodophenyl) pyrimidinylamine derivatives, the present inventors have found that It was found that the cause was a side reaction in which the carbon-iodine bond of the iodophenyl group was cleaved to produce a deiodinated product (Scheme 1). This cleavage of the carbon-halogen bond is a reaction peculiar to iodoaniline derivatives, and is not seen in the reaction of chloroaniline derivatives or bromoaniline derivatives with 2-chloropyrimidine derivatives, leading to the completion of the present invention. It was.
Figure 2013112658

以下、実施例を挙げて本発明を詳細に説明するが、本発明はこれらの実施例により限定されるものではない。   EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited by these Examples.

(測定機器、測定方法及び分析条件)
融点の測定には、MP70融点自動測定器(メトラー・トレド社)又はMP−500D融点測定器(柳本製作所)を用いた。
(Measuring equipment, measuring method and analysis conditions)
For the measurement of the melting point, an MP70 melting point automatic measuring device (Mettler Toledo) or MP-500D melting point measuring device (Yanamoto Seisakusho) was used.

H核磁気共鳴スペクトル(以下、H−NMR)の測定には、JNM−AL400(日本電子社)を用い、化学シフトは、テトラメチルシランを基準として、δ(単位:ppm)で表し、各シグナルの多重度はそれぞれ、s(一重線)、d(二重線)、t(三重線)、q(四重線)、m(多重線)又はbr.(幅広)で表した。 For the measurement of 1 H nuclear magnetic resonance spectrum (hereinafter, 1 H-NMR), JNM-AL400 (JEOL Ltd.) was used, and the chemical shift was expressed as δ (unit: ppm) based on tetramethylsilane, The multiplicity of each signal is s (single line), d (double line), t (triple line), q (quadruple line), m (multiple line) or br. (Wide).

質量分析スペクトル(以下、MS)は、1200LC/MSD(アジレント・テクノロジー社)を用い、ESI法で測定した。   Mass spectrometry spectrum (hereinafter referred to as MS) was measured by ESI method using 1200 LC / MSD (Agilent Technology).

反応の分析は、高速液体クロマトグラフィー(以下、HPLC)で行った。分析条件は、以下のとおりである。   Analysis of the reaction was performed by high performance liquid chromatography (hereinafter, HPLC). The analysis conditions are as follows.

HPLC:LC−10ADvp又はLC−20AD(いずれも島津製作所)
検出:UV(210nm)
カラム:YMC−Pack Pro C18 RS(ワイエムシィ社)
カラムサイズ:250×3.0mm I.D.
カラム温度:40℃
移動相:A液 20mMリン酸二水素ナトリウム水溶液
B液 アセトニトリル
展開条件:A/B=45/55(0〜15分)
A/B=45/55〜25/75(15〜20分;リニアグラジエント)
A/B=25/75(20〜25分)
A/B=25/75−45/55(25〜26分;リニアグラジエント)
A/B=45/55(26〜35分)
流速:0.5mL/分
注入量:10μL
HPLC: LC-10ADvp or LC-20AD (both Shimadzu Corporation)
Detection: UV (210 nm)
Column: YMC-Pack Pro C18 RS (YMC Corporation)
Column size: 250 × 3.0 mm D.
Column temperature: 40 ° C
Mobile phase: A solution 20 mM sodium dihydrogen phosphate aqueous solution
B liquid acetonitrile Development conditions: A / B = 45/55 (0 to 15 minutes)
A / B = 45 / 55-25 / 75 (15-20 minutes; linear gradient)
A / B = 25/75 (20-25 minutes)
A / B = 25 / 75-45 / 55 (25-26 minutes; linear gradient)
A / B = 45/55 (26-35 minutes)
Flow rate: 0.5 mL / min Injection volume: 10 μL

また、HPLC分析用のサンプル調製は、以下の手順で行った。
1)反応液約100mgを採取する。
2)テトラヒドロフラン(以下、THF)400mgを加えて均一に溶解する。
3)上記THF希釈液100mgをメスフラスコに採取し、アセトニトリル/水(50/50)を加えて定容する。
Moreover, the sample preparation for HPLC analysis was performed in the following procedures.
1) Collect about 100 mg of the reaction solution.
2) Add 400 mg of tetrahydrofuran (hereinafter THF) and dissolve uniformly.
3) Collect 100 mg of the above THF diluted solution in a volumetric flask and add acetonitrile / water (50/50) to a constant volume.

HPLC分析の結果から、目的物生成量、ヨードアニリン残量、脱ヨウ素体生成量及びその他副生成物量として、N−(ヨードフェニル)ピリミジニルアミン誘導体、ヨードアニリン誘導体、脱ヨウ素体及びその他副生成物のピークの相対面積を算出した。2−クロロピリミジン誘導体及びそれが溶媒の水と反応して生成する分解物である2−ヒドロキシピリミジン誘導体は、N−(ヨードフェニル)ピリミジニルアミン誘導体の収率に影響を与える副生成物量ではないため、生成量は算出しなかった。また、溶媒のピークも相対面積の計算から除外した。計算式を以下に示す。   From the results of HPLC analysis, the amount of the desired product produced, the remaining amount of iodoaniline, the amount of deiodinated product and the amount of other byproducts were determined as N- (iodophenyl) pyrimidinylamine derivatives, iodoaniline derivatives, deiodinated products and other byproducts. The relative area of the peak was calculated. The 2-chloropyrimidine derivative and the 2-hydroxypyrimidine derivative, which is a decomposition product produced by the reaction with water of the solvent, are not by-products that affect the yield of the N- (iodophenyl) pyrimidinylamine derivative. The production amount was not calculated. Solvent peaks were also excluded from the relative area calculations. The calculation formula is shown below.

(目的物生成量)={A/(B−C−D−E)}×100(%)
A:N−(ヨードフェニル)ピリミジニルアミン誘導体のピーク面積
B:全ピーク面積
C:2−クロロピリミジン誘導体のピーク面積
D:2−ヒドロキシピリミジン誘導体のピーク面積
E:溶媒のピーク面積
(Target product generation amount) = {A / (B-C-D-E)} × 100 (%)
A: Peak area of N- (iodophenyl) pyrimidinylamine derivative B: Total peak area C: Peak area of 2-chloropyrimidine derivative D: Peak area of 2-hydroxypyrimidine derivative E: Peak area of solvent

(ヨードアニリン残量)={A/(B−C−D−E)}×100(%)
A:ヨードアニリン誘導体のピーク面積
B:全ピーク面積
C:2−クロロピリミジン誘導体のピーク面積
D:2−ヒドロキシピリミジン誘導体のピーク面積
E:溶媒のピーク面積
(Remaining Yodoaniline) = {A / (B-C-D-E)} × 100 (%)
A: Peak area of iodoaniline derivative B: Total peak area C: Peak area of 2-chloropyrimidine derivative D: Peak area of 2-hydroxypyrimidine derivative E: Peak area of solvent

(脱ヨウ素体生成量)={A/(B−C−D−E)}×100(%)
A:脱ヨウ素体のピーク面積
B:全ピーク面積
C:2−クロロピリミジン誘導体のピーク面積
D:2−ヒドロキシピリミジン誘導体のピーク面積
E:溶媒のピーク面積
(Deiodine production amount) = {A / (B-C-D-E)} × 100 (%)
A: Peak area of deiodinated substance B: Total peak area C: Peak area of 2-chloropyrimidine derivative D: Peak area of 2-hydroxypyrimidine derivative E: Peak area of solvent

(その他副生成物量)={A−(B+C+D+E+F+G)}×100(%)
A:全ピーク面積
B:2−クロロピリミジン誘導体のピーク面積
C:2−ヒドロキシピリミジン誘導体のピーク面積
D:溶媒のピーク面積
E:N−(ヨードフェニル)ピリミジニルアミン誘導体のピーク面積
F:ヨードアニリン誘導体のピーク面積
G:脱ヨウ素体のピーク面積
(Amount of other by-products) = {A− (B + C + D + E + F + G)} × 100 (%)
A: Total peak area B: Peak area of 2-chloropyrimidine derivative C: Peak area of 2-hydroxypyrimidine derivative D: Peak area of solvent E: Peak area of N- (iodophenyl) pyrimidinylamine derivative F: Iodoaniline derivative Peak area G: Deiodine peak area

(実施例1)塩酸の存在下、水溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(0.500g、2.28mmol)、2−クロロピリミジン(0.392g、3.42mmol)に1M塩酸(2.28mL、2.28mmol)を加え、55℃にて16時間撹拌した。反応液をサンプリングし、HPLC分析を行った。反応液を室温に冷却し、0.78M水酸化ナトリウム水溶液(10mL)を加え、酢酸エチル(20mL)で抽出した。有機層を水で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣をカラムクロマトグラフィー(シリカゲル、溶出液:ヘキサン/酢酸エチル)で精製した。N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量0.614g、収率91%)を得た。

Figure 2013112658
融点150−154℃
MS m/z 298[(M+H)
H−NMR(CDCl
δ6.75(t,J=4.8Hz,1H),7.29(br.s,1H),7.43(d,J=9.4Hz,2H),7.62(d,J=9.4Hz,2H),8.43(d,J=4.8Hz,2H). (Example 1) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of hydrochloric acid in an aqueous solvent at 55 ° C:
Under an argon atmosphere, 1-M hydrochloric acid (2.28 mL, 2.28 mmol) was added to 4-iodoaniline (0.500 g, 2.28 mmol) and 2-chloropyrimidine (0.392 g, 3.42 mmol) at 55 ° C. Stir for 16 hours. The reaction solution was sampled and subjected to HPLC analysis. The reaction mixture was cooled to room temperature, 0.78 M aqueous sodium hydroxide solution (10 mL) was added, and the mixture was extracted with ethyl acetate (20 mL). The organic layer was washed with water and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by column chromatography (silica gel, eluent: hexane / ethyl acetate). N- (4-iodophenyl) -2-pyrimidinylamine (yield 0.614 g, yield 91%) was obtained.
Figure 2013112658
Melting point 150-154 ° C
MS m / z 298 [(M + H) + ]
1 H-NMR (CDCl 3 )
δ 6.75 (t, J = 4.8 Hz, 1H), 7.29 (br.s, 1H), 7.43 (d, J = 9.4 Hz, 2H), 7.62 (d, J = 9 .4 Hz, 2H), 8.43 (d, J = 4.8 Hz, 2H).

(実施例2)酢酸の存在下、水溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(0.500g、2.28mmol)、2−クロロピリミジン(0.392g、3.42mmol)に水(2.28mL)、酢酸(0.137g、2.28mmol)を加え、55℃にて16時間撹拌した。反応液をサンプリングし、HPLC分析を行った。反応液を室温に冷却し、0.78M水酸化ナトリウム水溶液(10mL)を加え、酢酸エチル(20mL)で抽出した。有機層を水で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣をカラムクロマトグラフィー(シリカゲル、溶出液:ヘキサン/酢酸エチル)で精製した。N−(4−ヨードフェニル)−2−ピリミジニルアミン(0.625g、92%)を得た。
(Example 2) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of acetic acid in an aqueous solvent at 55 ° C:
Under an argon atmosphere, 4-iodoaniline (0.500 g, 2.28 mmol), 2-chloropyrimidine (0.392 g, 3.42 mmol) to water (2.28 mL) and acetic acid (0.137 g, 2.28 mmol). In addition, the mixture was stirred at 55 ° C. for 16 hours. The reaction solution was sampled and subjected to HPLC analysis. The reaction mixture was cooled to room temperature, 0.78 M aqueous sodium hydroxide solution (10 mL) was added, and the mixture was extracted with ethyl acetate (20 mL). The organic layer was washed with water and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by column chromatography (silica gel, eluent: hexane / ethyl acetate). N- (4-iodophenyl) -2-pyrimidinylamine (0.625 g, 92%) was obtained.

(実施例3)メタンスルホン酸の存在下、水溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
酢酸の代わりにメタンスルホン酸(0.219g、2.28mmol)を用いて、実施例2と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量0.607g、収率90%)を得た。
(Example 3) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of methanesulfonic acid in an aqueous solvent at 55 ° C:
The same operation as in Example 2 was carried out using methanesulfonic acid (0.219 g, 2.28 mmol) instead of acetic acid, and N- (4-iodophenyl) -2-pyrimidinylamine (yield 0.607 g, yield). 90%).

(実施例4)リン酸の存在下、水溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
酢酸の代わりにリン酸(0.263g、2.28mmol)を用いて、実施例2と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量0.628g、収率93%)を得た。実施例1〜4の結果を表1に示す。
(Example 4) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of phosphoric acid in an aqueous solvent at 55 ° C:
The same operation as in Example 2 was carried out using phosphoric acid (0.263 g, 2.28 mmol) instead of acetic acid, and N- (4-iodophenyl) -2-pyrimidinylamine (yield 0.628 g, yield). 93%). The results of Examples 1 to 4 are shown in Table 1.

Figure 2013112658
Figure 2013112658

いずれの場合も脱ヨウ素体を初めとする不純物の生成量は少なく、高収率でN−(4−ヨードフェニル)−2−ピリミジニルアミンが得られた。   In either case, the amount of impurities such as deiodinated product was small, and N- (4-iodophenyl) -2-pyrimidinylamine was obtained in high yield.

(比較例1)酢酸の存在下、1,4−ジオキサン溶媒中、100℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(5.00g、22.8mmol)、2−クロロピリミジン(2.75g、24.0mmol)に1,4−ジオキサン(10mL)、酢酸(2.0mL、34.9mmol)を加え、100℃にて4時間撹拌した。反応液をサンプリングし、HPLC分析を行った。反応液を室温に冷却し、THF(20mL)、水(20mL)、1M水酸化ナトリウム水溶液(60mL)を加え、酢酸エチル(100mL)で2回抽出した。有機層を飽和塩化ナトリウム水溶液で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣をカラムクロマトグラフィー(シリカゲル、溶出液:ヘキサン/酢酸エチル)で精製した。N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量4.02g、収率59%)を得た。
(Comparative Example 1) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of acetic acid in a 1,4-dioxane solvent at 100 ° C:
Under an argon atmosphere, 4-iodoaniline (5.00 g, 22.8 mmol), 2-chloropyrimidine (2.75 g, 24.0 mmol), 1,4-dioxane (10 mL), acetic acid (2.0 mL, 34.9 mmol). ) And stirred at 100 ° C. for 4 hours. The reaction solution was sampled and subjected to HPLC analysis. The reaction mixture was cooled to room temperature, THF (20 mL), water (20 mL), 1M aqueous sodium hydroxide solution (60 mL) were added, and the mixture was extracted twice with ethyl acetate (100 mL). The organic layer was washed with a saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by column chromatography (silica gel, eluent: hexane / ethyl acetate). N- (4-iodophenyl) -2-pyrimidinylamine (yield 4.02 g, yield 59%) was obtained.

(比較例2)塩酸の存在下、1,4−ジオキサン溶媒中、80℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(1.00g、4.57mmol)、2−クロロピリミジン(0.549g、4.79mmol)に1,4−ジオキサン(1.6mL)、4M塩化水素1,4−ジオキサン溶液(0.400mL、1.60mmol)を加え、80℃にて18時間撹拌した。反応液をサンプリングし、HPLC分析を行った。
(Comparative Example 2) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of hydrochloric acid in a 1,4-dioxane solvent at 80 ° C:
Under an argon atmosphere, 4-iodoaniline (1.00 g, 4.57 mmol), 2-chloropyrimidine (0.549 g, 4.79 mmol) to 1,4-dioxane (1.6 mL), 4M hydrogen chloride 1,4- Dioxane solution (0.400 mL, 1.60 mmol) was added and stirred at 80 ° C. for 18 hours. The reaction solution was sampled and subjected to HPLC analysis.

(比較例3)塩酸の存在下、1,4−ジオキサン溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(0.500g、2.28mmol)、2−クロロピリミジン(0.392g、3.42mmol)に1,4−ジオキサン(1.7mL)、4M塩化水素1,4−ジオキサン溶液(0.571mL、2.28mmol)を加え、55℃にて16時間撹拌した。反応液をサンプリングし、HPLC分析を行った。
Comparative Example 3 Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of hydrochloric acid in a 1,4-dioxane solvent at 55 ° C .:
Under an argon atmosphere, 4-iodoaniline (0.500 g, 2.28 mmol), 2-chloropyrimidine (0.392 g, 3.42 mmol) to 1,4-dioxane (1.7 mL), 4M hydrogen chloride 1,4- Dioxane solution (0.571 mL, 2.28 mmol) was added and stirred at 55 ° C. for 16 hours. The reaction solution was sampled and subjected to HPLC analysis.

(比較例4)塩酸の存在下、エタノール溶媒中、80℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
1,4−ジオキサンの代わりにエタノールを用いて比較例2と同様の操作を行った。反応液をサンプリングし、HPLC分析を行った。
(比較例5)塩酸の存在下、N,N−ジメチルホルムアミド(以下、DMF)溶媒中、80℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
1,4−ジオキサンの代わりにDMFを用いて比較例2と同様の操作を行った。反応液をサンプリングし、HPLC分析を行った。
(Comparative Example 4) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of hydrochloric acid in an ethanol solvent at 80 ° C:
The same operation as in Comparative Example 2 was performed using ethanol instead of 1,4-dioxane. The reaction solution was sampled and subjected to HPLC analysis.
Comparative Example 5 Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of hydrochloric acid in an N, N-dimethylformamide (hereinafter DMF) solvent at 80 ° C .:
The same operation as in Comparative Example 2 was performed using DMF instead of 1,4-dioxane. The reaction solution was sampled and subjected to HPLC analysis.

(比較例6)塩酸の存在下、DMF/水混合溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(2.00g、9.13mmol)、2−クロロピリミジン(1.60g、14.0mmol)にDMF(6.2mL)、3M塩酸(3.10mL、9.30mmol)を加え、55℃にて18時間撹拌した。反応液をサンプリングし、HPLC分析を行った。
(Comparative Example 6) Production of N- (4-iodophenyl) -2-pyrimidinylamine in the presence of hydrochloric acid in a DMF / water mixed solvent at 55 ° C:
Under an argon atmosphere, 4-iodoaniline (2.00 g, 9.13 mmol), 2-chloropyrimidine (1.60 g, 14.0 mmol) in DMF (6.2 mL), 3M hydrochloric acid (3.10 mL, 9.30 mmol) And stirred at 55 ° C. for 18 hours. The reaction solution was sampled and subjected to HPLC analysis.

実施例1及び比較例1〜6の結果を表2に示す。溶媒に1,4−ジオキサン、DMFなどの有機溶媒を用いた場合、脱ヨウ素体を初めとする副生成物の生成量が増加する。有機溶媒と水の混合溶媒を用いた場合も副生成物の生成量は多く(比較例6)、水のみを溶媒とした場合に副生成物の生成を抑制する効果が高い。また、実施例1と比較して比較例3ではほとんど反応が進行していないことから、水を溶媒とした場合に低い温度でも反応が進行することが明らかとなった。   Table 2 shows the results of Example 1 and Comparative Examples 1 to 6. When an organic solvent such as 1,4-dioxane or DMF is used as the solvent, the amount of by-products such as deiodinated product increases. Even when a mixed solvent of an organic solvent and water is used, the amount of by-products generated is large (Comparative Example 6), and when only water is used as a solvent, the effect of suppressing the formation of by-products is high. Further, since the reaction hardly progressed in Comparative Example 3 as compared with Example 1, it was revealed that the reaction proceeds even at a low temperature when water is used as a solvent.

Figure 2013112658
Figure 2013112658

(比較例7)水溶媒中でのN−(4−ブロモフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ブロモアニリン(0.500g、2.91mmol)、2−クロロピリミジン(0.499g、4.36mmol)に1M塩酸(2.91mL、2.91mmol)を加え、55℃にて16時間撹拌した。反応液をサンプリングし、HPLC分析を行った。反応液を室温に冷却し、1M水酸化ナトリウム水溶液(10mL)を加え、酢酸エチル(20mL)で抽出した。有機層を水で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣をカラムクロマトグラフィー(シリカゲル、溶出液:ヘキサン/酢酸エチル)で精製した。N−(4−ブロモフェニル)−2−ピリミジニルアミン(収量0.670g、収率92%)を得た。

Figure 2013112658
融点171−174℃
MS m/z 250[(M+H)
H−NMR(CDCl
δ6.75(t,J=4.8Hz,1H),7.28(br.s,1H),7.43(d,J=9.4Hz,2H),7.54(d,J=9.4Hz,2H),8.43(d,J=4.8Hz,2H). Comparative Example 7 Production of N- (4-bromophenyl) -2-pyrimidinylamine in an aqueous solvent:
Under an argon atmosphere, 1M hydrochloric acid (2.91 mL, 2.91 mmol) was added to 4-bromoaniline (0.500 g, 2.91 mmol) and 2-chloropyrimidine (0.499 g, 4.36 mmol) at 55 ° C. Stir for 16 hours. The reaction solution was sampled and subjected to HPLC analysis. The reaction mixture was cooled to room temperature, 1M aqueous sodium hydroxide solution (10 mL) was added, and the mixture was extracted with ethyl acetate (20 mL). The organic layer was washed with water and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by column chromatography (silica gel, eluent: hexane / ethyl acetate). N- (4-bromophenyl) -2-pyrimidinylamine (yield 0.670 g, yield 92%) was obtained.
Figure 2013112658
Melting point 171-174 ° C
MS m / z 250 [(M + H) + ]
1 H-NMR (CDCl 3 )
δ 6.75 (t, J = 4.8 Hz, 1H), 7.28 (br.s, 1H), 7.43 (d, J = 9.4 Hz, 2H), 7.54 (d, J = 9 .4 Hz, 2H), 8.43 (d, J = 4.8 Hz, 2H).

(比較例8)1,4−ジオキサン溶媒中でのN−(4−ブロモフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ブロモアニリン(0.786g、4.57mmol)、2−クロロピリミジン(0.550g、4.80mmol)に1,4−ジオキサン(1.6mL)、4M塩化水素1,4−ジオキサン溶液(0.400mL、1.60mmol)を加え、80℃にて18時間撹拌した。反応液をサンプリングし、HPLC分析を行った。
(Comparative Example 8) Production of N- (4-bromophenyl) -2-pyrimidinylamine in 1,4-dioxane solvent:
Under an argon atmosphere, 4-bromoaniline (0.786 g, 4.57 mmol), 2-chloropyrimidine (0.550 g, 4.80 mmol) to 1,4-dioxane (1.6 mL), 4M hydrogen chloride 1,4- Dioxane solution (0.400 mL, 1.60 mmol) was added and stirred at 80 ° C. for 18 hours. The reaction solution was sampled and subjected to HPLC analysis.

(比較例9)水溶媒中でのN−(4−クロロフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−クロロアニリン(0.500g、3.92mmol)、2−クロロピリミジン(0.673g、5.88mmol)に1M塩酸(3.92mL、3.92mmol)を加え、55℃にて16時間撹拌した。反応液をサンプリングし、HPLC分析を行った。反応液を室温に冷却し、1.3M水酸化ナトリウム水溶液(10mL)を加え、酢酸エチル(20mL)で抽出した。有機層を蒸留水で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣をカラムクロマトグラフィー(シリカゲル、溶出液:ヘキサン/酢酸エチル)で精製した。N−(4−クロロフェニル)−2−ピリミジニルアミン(収量0.729g、収率90%)を得た。

Figure 2013112658
融点171−177℃
MS m/z 206[(M+H)
H−NMR(CDCl
δ6.75(t,J=4.9Hz,1H),7.29(d,J=9.5Hz,2H),7.34(br.s,1H),7.58(d,J=9.5Hz,2H),8.42(d,J=4.9Hz,2H). Comparative Example 9 Production of N- (4-chlorophenyl) -2-pyrimidinylamine in an aqueous solvent:
Under an argon atmosphere, 1M hydrochloric acid (3.92 mL, 3.92 mmol) was added to 4-chloroaniline (0.500 g, 3.92 mmol) and 2-chloropyrimidine (0.673 g, 5.88 mmol) at 55 ° C. Stir for 16 hours. The reaction solution was sampled and subjected to HPLC analysis. The reaction mixture was cooled to room temperature, 1.3 M aqueous sodium hydroxide solution (10 mL) was added, and the mixture was extracted with ethyl acetate (20 mL). The organic layer was washed with distilled water and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by column chromatography (silica gel, eluent: hexane / ethyl acetate). N- (4-chlorophenyl) -2-pyrimidinylamine (yield 0.729 g, yield 90%) was obtained.
Figure 2013112658
Melting point 171-177 ° C
MS m / z 206 [(M + H) + ]
1 H-NMR (CDCl 3 )
δ 6.75 (t, J = 4.9 Hz, 1H), 7.29 (d, J = 9.5 Hz, 2H), 7.34 (br.s, 1H), 7.58 (d, J = 9 .5 Hz, 2H), 8.42 (d, J = 4.9 Hz, 2H).

(比較例10)1,4−ジオキサン溶媒中でのN−(4−クロロフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−クロロアニリン(0.583g、4.57mmol)、2−クロロピリミジン(0.550g、4.80mmol)に1,4−ジオキサン(1.6mL)、4M塩化水素1,4−ジオキサン溶液(0.400mL、1.60mmol)を加え、80℃にて18時間撹拌した。反応液をサンプリングし、HPLC分析を行った。比較例7〜10の結果を表3に示す。
(Comparative Example 10) Production of N- (4-chlorophenyl) -2-pyrimidinylamine in 1,4-dioxane solvent:
Under an argon atmosphere, 4-chloroaniline (0.583 g, 4.57 mmol), 2-chloropyrimidine (0.550 g, 4.80 mmol) to 1,4-dioxane (1.6 mL), 4M hydrogen chloride 1,4- Dioxane solution (0.400 mL, 1.60 mmol) was added and stirred at 80 ° C. for 18 hours. The reaction solution was sampled and subjected to HPLC analysis. The results of Comparative Examples 7 to 10 are shown in Table 3.

Figure 2013112658
Figure 2013112658

ブロモアニリン誘導体、クロロアニリン誘導体を用いた反応の場合、水溶媒、有機溶媒ともに副生成物の生成は少なく、高い収率で目的物が得られることが分かった。   In the case of a reaction using a bromoaniline derivative or a chloroaniline derivative, it was found that there was little by-product formation in both the aqueous solvent and the organic solvent, and the target product was obtained in a high yield.

(実施例5)水溶媒中でのN−(3−ヨードフェニル)−2−ピリミジニルアミンの製造:
4−ヨードアニリンの代わりに3−ヨードアニリン(0.500g、2.28mmol)を用いて、実施例1と同様の操作を行い、N−(3−ヨードフェニル)−2−ピリミジニルアミン(収量0.607g、収率90%)を得た。

Figure 2013112658
融点116−118℃
MS m/z 298[(M+H)
H−NMR(CDCl
δ6.78(t,J=4.8Hz,1H),7.04(t,J=8.0Hz,1H),7.28(br.s,1H),7.37(m,1H),7.54(m,1H),8.12(t,J=2.0Hz,1H),8.44(d,J=4.8Hz,2H). Example 5 Production of N- (3-iodophenyl) -2-pyrimidinylamine in an aqueous solvent:
The same operation as in Example 1 was carried out using 3-iodoaniline (0.500 g, 2.28 mmol) instead of 4-iodoaniline, and N- (3-iodophenyl) -2-pyrimidinylamine (yield 0 607 g, 90% yield).
Figure 2013112658
Melting point 116-118 ° C
MS m / z 298 [(M + H) + ]
1 H-NMR (CDCl 3 )
δ 6.78 (t, J = 4.8 Hz, 1H), 7.04 (t, J = 8.0 Hz, 1H), 7.28 (br.s, 1H), 7.37 (m, 1H), 7.54 (m, 1H), 8.12 (t, J = 2.0 Hz, 1H), 8.44 (d, J = 4.8 Hz, 2H).

(比較例11)1,4−ジオキサン溶媒中でのN−(3−ヨードフェニル)−2−ピリミジニルアミンの製造:
4−ヨードアニリンの代わりに3−ヨードアニリン(1.00g、4.57mmol)を用いて比較例2と同様の操作を行った。反応液をサンプリングし、HPLC分析を行った。
Comparative Example 11 Production of N- (3-iodophenyl) -2-pyrimidinylamine in 1,4-dioxane solvent:
The same operation as Comparative Example 2 was performed using 3-iodoaniline (1.00 g, 4.57 mmol) instead of 4-iodoaniline. The reaction solution was sampled and subjected to HPLC analysis.

(実施例6)水溶媒中でのN−(2−ヨードフェニル)−2−ピリミジニルアミンの製造:
4−ヨードアニリンの代わりに2−ヨードアニリン(0.500g、2.28mmol)を用いて、実施例1と同様の操作を行い、N−(2−ヨードフェニル)−2−ピリミジニルアミン(0.487g、72%)を得た。

Figure 2013112658
融点76−78℃
MS m/z 298[(M+H)
H−NMR(CDCl
δ6.78−6.80(m,2H),7.34−7.40(m,2H),7.82(dd,J=8.0,1.3Hz,1H),8.34(dd,J=8.3,1.5Hz,1H),8.45(d,J=4.9Hz,2H). Example 6 Production of N- (2-iodophenyl) -2-pyrimidinylamine in an aqueous solvent:
The same operation as in Example 1 was performed using 2-iodoaniline (0.500 g, 2.28 mmol) instead of 4-iodoaniline, and N- (2-iodophenyl) -2-pyrimidinylamine (0. 487 g, 72%).
Figure 2013112658
Melting point 76-78 ° C
MS m / z 298 [(M + H) + ]
1 H-NMR (CDCl 3 )
δ 6.78-6.80 (m, 2H), 7.34-7.40 (m, 2H), 7.82 (dd, J = 8.0, 1.3 Hz, 1H), 8.34 (dd , J = 8.3, 1.5 Hz, 1H), 8.45 (d, J = 4.9 Hz, 2H).

(比較例12)1,4−ジオキサン溶媒中でのN−(2−ヨードフェニル)−2−ピリミジニルアミンの製造:
4−ヨードアニリンの代わりに2−ヨードアニリン(1.00g、4.57mmol)を用いて比較例2と同様の操作を行った。反応液をサンプリングし、HPLC分析を行った。
Comparative Example 12 Production of N- (2-iodophenyl) -2-pyrimidinylamine in 1,4-dioxane solvent:
The same operation as in Comparative Example 2 was performed using 2-iodoaniline (1.00 g, 4.57 mmol) instead of 4-iodoaniline. The reaction solution was sampled and subjected to HPLC analysis.

実施例5及び6、並びに比較例11及び12の結果を表4に示す。3−ヨードアニリン及び2−ヨードアニリンを用いた反応においても、水溶媒を用いた場合に高い収率で目的物が得られることが分かった。   Table 4 shows the results of Examples 5 and 6 and Comparative Examples 11 and 12. Also in the reaction using 3-iodoaniline and 2-iodoaniline, it was found that the target product was obtained in high yield when an aqueous solvent was used.

Figure 2013112658
Figure 2013112658

(実施例7)水溶媒中でのN−(4−ヨードフェニル)−4−メチルピリミジン−2−イルアミンの製造:
2−クロロピリミジンの代わりに2−クロロ−4−メチルピリミジン(0.440g、3.42mmol)を用いて、実施例1と同様の操作を行い、N−(4−ヨードフェニル)−4−メチルピリミジン−2−イルアミン(収量0.662g、収率93%)を得た。

Figure 2013112658
融点139−143℃
MS m/z 312[(M+H)
H−NMR(CDCl
δ2.42(s,3H),6.63(d,J=5.0Hz,1H),7.11(br.s,1H),7.44(d,J=9.3Hz,1H),7.60(d,J=9.3Hz,1H),8.28(d,J=5.0Hz,1H). Example 7 Production of N- (4-iodophenyl) -4-methylpyrimidin-2-ylamine in an aqueous solvent:
The same operation as in Example 1 was carried out using 2-chloro-4-methylpyrimidine (0.440 g, 3.42 mmol) instead of 2-chloropyrimidine, and N- (4-iodophenyl) -4-methyl was obtained. Pyrimidin-2-ylamine (yield 0.662 g, yield 93%) was obtained.
Figure 2013112658
Melting point 139-143 ° C
MS m / z 312 [(M + H) + ]
1 H-NMR (CDCl 3 )
δ 2.42 (s, 3H), 6.63 (d, J = 5.0 Hz, 1H), 7.11 (br.s, 1H), 7.44 (d, J = 9.3 Hz, 1H), 7.60 (d, J = 9.3 Hz, 1H), 8.28 (d, J = 5.0 Hz, 1H).

(比較例13)1,4−ジオキサン溶媒中でのN−(4−ヨードフェニル)−4−メチルピリミジン−2−イルアミンの製造:
2−クロロピリミジンの代わりに2−クロロ−4−メチルピリミジン(0.616g、4.79mmol)を用いて比較例2と同様の操作を行った。反応液をサンプリングし、HPLC分析を行った。
Comparative Example 13 Production of N- (4-iodophenyl) -4-methylpyrimidin-2-ylamine in 1,4-dioxane solvent:
The same operation as in Comparative Example 2 was performed using 2-chloro-4-methylpyrimidine (0.616 g, 4.79 mmol) instead of 2-chloropyrimidine. The reaction solution was sampled and subjected to HPLC analysis.

(実施例8)水溶媒中でのN−(4−ヨードフェニル)−4,6−ジメチルピリミジン−2−イルアミンの製造:
2−クロロピリミジンの代わりに2−クロロ−4,6−ジメチルピリミジン(0.488g、3.42mmol)を用いて、実施例1と同様の操作を行い、N−(4−ヨードフェニル)−4,6−ジメチルピリミジン−2−イルアミン(収量0.724g、収率98%)を得た。

Figure 2013112658
融点139−142℃
MS m/z 326[(M+H)
H−NMR(CDCl
δ2.37(s,6H),6.52(s,1H),7.02(br.s,1H),7.47(d,J=9.3Hz,1H),7.59(d,J=9.3Hz,1H). Example 8 Production of N- (4-iodophenyl) -4,6-dimethylpyrimidin-2-ylamine in an aqueous solvent:
The same operation as in Example 1 was carried out using 2-chloro-4,6-dimethylpyrimidine (0.488 g, 3.42 mmol) instead of 2-chloropyrimidine, and N- (4-iodophenyl) -4 , 6-dimethylpyrimidin-2-ylamine (yield 0.724 g, yield 98%) was obtained.
Figure 2013112658
Melting point 139-142 ° C
MS m / z 326 [(M + H) + ]
1 H-NMR (CDCl 3 )
δ 2.37 (s, 6H), 6.52 (s, 1H), 7.02 (br. s, 1H), 7.47 (d, J = 9.3 Hz, 1H), 7.59 (d, J = 9.3 Hz, 1H).

(比較例14)1,4−ジオキサン溶媒中でのN−(4−ヨードフェニル)−4,6−ジメチルピリミジン−2−イルアミンの製造:
2−クロロピリミジンの代わりに2−クロロ−4,6−ジメチルピリミジン(0.684g、4.79mmol)を用いて比較例2と同様の操作を行った。反応液をサンプリングし、HPLC分析を行った。実施例7及び8並びに比較例12及び13の結果を表5に示す。
Comparative Example 14 Production of N- (4-iodophenyl) -4,6-dimethylpyrimidin-2-ylamine in 1,4-dioxane solvent:
The same operation as in Comparative Example 2 was performed using 2-chloro-4,6-dimethylpyrimidine (0.684 g, 4.79 mmol) instead of 2-chloropyrimidine. The reaction solution was sampled and subjected to HPLC analysis. The results of Examples 7 and 8 and Comparative Examples 12 and 13 are shown in Table 5.

Figure 2013112658
Figure 2013112658

置換基を有する2−クロロピリミジ誘導体を用いた反応においても、水溶媒を用いた場合に高い収率で目的物が得られることが分かった。   Also in the reaction using the 2-chloropyrimidi derivative having a substituent, it was found that the target product was obtained in a high yield when an aqueous solvent was used.

(比較例15)塩酸0.5モル当量の存在下、水溶媒中、30℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(5.00g、22.8mmol)、2−クロロピリミジン(3.92g、34.3mmol)に0.5M塩酸(23.0mL、11.5mmol)を加え、30℃にて21時間撹拌した。反応液を室温に冷却し、1M水酸化ナトリウム水溶液(70mL)を加え、酢酸エチル(150mL)で抽出した。有機層を飽和塩化ナトリウム水溶液で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣を再結晶(溶媒:アセトニトリル)で精製した。N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量3.78g、収率56%)を得た。
(Comparative Example 15) Production of N- (4-iodophenyl) -2-pyrimidinylamine under the conditions of 30 ° C in an aqueous solvent in the presence of 0.5 molar equivalent of hydrochloric acid:
Under an argon atmosphere, 4-iodoaniline (5.00 g, 22.8 mmol) and 2-chloropyrimidine (3.92 g, 34.3 mmol) were added with 0.5 M hydrochloric acid (23.0 mL, 11.5 mmol), and 30 ° C. For 21 hours. The reaction mixture was cooled to room temperature, 1M aqueous sodium hydroxide solution (70 mL) was added, and the mixture was extracted with ethyl acetate (150 mL). The organic layer was washed with a saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by recrystallization (solvent: acetonitrile). N- (4-iodophenyl) -2-pyrimidinylamine (yield 3.78 g, 56% yield) was obtained.

(比較例16)塩酸1モル当量の存在下、水溶媒中、30℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
0.5M塩酸の代わりに1M塩酸(23.0mL、23.0mmol)を用いて比較例15と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量4.47g、収率66%)を得た。
(Comparative Example 16) Production of N- (4-iodophenyl) -2-pyrimidinylamine in water solvent in the presence of 1 molar equivalent of hydrochloric acid at 30 ° C:
The same operation as in Comparative Example 15 was performed using 1M hydrochloric acid (23.0 mL, 23.0 mmol) instead of 0.5M hydrochloric acid, and N- (4-iodophenyl) -2-pyrimidinylamine (yield 4.47 g, Yield 66%).

(実施例9)塩酸1モル当量の存在下、水溶媒中、40℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(1.50g、6.85mmol)、2−クロロピリミジン(1.18g、10.3mmol)に1M塩酸(6.90mL、6.90mmol)を加え、40℃にて19時間撹拌した。反応液を室温に冷却し、1M水酸化ナトリウム水溶液(20mL)を加え、酢酸エチル(40mL)で2回抽出した。有機層を飽和塩化ナトリウム水溶液で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣を再結晶(溶媒:2−プロパノール)で精製した。N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量1.63g、収率80%)を得た。
(Example 9) Production of N- (4-iodophenyl) -2-pyrimidinylamine in water solvent in the presence of 1 molar equivalent of hydrochloric acid at 40 ° C:
Under an argon atmosphere, 1-M hydrochloric acid (6.90 mL, 6.90 mmol) was added to 4-iodoaniline (1.50 g, 6.85 mmol) and 2-chloropyrimidine (1.18 g, 10.3 mmol) at 40 ° C. Stir for 19 hours. The reaction mixture was cooled to room temperature, 1M aqueous sodium hydroxide solution (20 mL) was added, and the mixture was extracted twice with ethyl acetate (40 mL). The organic layer was washed with a saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by recrystallization (solvent: 2-propanol). N- (4-iodophenyl) -2-pyrimidinylamine (yield 1.63 g, yield 80%) was obtained.

(実施例10)塩酸0.5モル当量の存在下、水溶媒中、50℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
反応温度を50℃として比較例15と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量5.67g、収率84%)を得た。
(Example 10) Production of N- (4-iodophenyl) -2-pyrimidinylamine under the conditions of 50 ° C in an aqueous solvent in the presence of 0.5 molar equivalent of hydrochloric acid:
The reaction temperature was 50 ° C., and the same operation as in Comparative Example 15 was performed to obtain N- (4-iodophenyl) -2-pyrimidinylamine (yield 5.67 g, yield 84%).

(実施例11)塩酸1モル当量の存在下、水溶媒中、50℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
0.5M塩酸の代わりに1M塩酸(23.0mL、23.0mmol)を用い、かつ、反応温度を50℃として比較例15と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量5.64g、収率83%)を得た。
(Example 11) Production of N- (4-iodophenyl) -2-pyrimidinylamine in water solvent in the presence of 1 molar equivalent of hydrochloric acid at 50 ° C:
1-M hydrochloric acid (23.0 mL, 23.0 mmol) was used instead of 0.5 M hydrochloric acid, and the reaction temperature was 50 ° C., and the same operation as in Comparative Example 15 was performed. Pyrimidinylamine (yield 5.64 g, 83% yield) was obtained.

(実施例12)塩酸0.2モル当量の存在下、水溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(1.50g、6.85mmol)、2−クロロピリミジン(1.18g、10.3mmol)に水(5.5mL)、1M塩酸(1.40mL、1.40mmol)を加え、55℃にて19時間撹拌した。反応液を室温に冷却し、1M水酸化ナトリウム水溶液(20mL)を加え、酢酸エチル(40mL)で2回抽出した。有機層を飽和塩化ナトリウム水溶液で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣を再結晶(溶媒:2−プロパノール)で精製した。N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量1.78g、収率87%)を得た。
(Example 12) Production of N- (4-iodophenyl) -2-pyrimidinylamine in water solvent in the presence of 0.2 molar equivalent of hydrochloric acid at 55 ° C:
Under an argon atmosphere, 4-iodoaniline (1.50 g, 6.85 mmol), 2-chloropyrimidine (1.18 g, 10.3 mmol) in water (5.5 mL), 1M hydrochloric acid (1.40 mL, 1.40 mmol) And stirred at 55 ° C. for 19 hours. The reaction mixture was cooled to room temperature, 1M aqueous sodium hydroxide solution (20 mL) was added, and the mixture was extracted twice with ethyl acetate (40 mL). The organic layer was washed with a saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by recrystallization (solvent: 2-propanol). N- (4-iodophenyl) -2-pyrimidinylamine (yield 1.78 g, 87% yield) was obtained.

(実施例13)塩酸2モル当量の存在下、水溶媒中、55℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
1M塩酸の代わりに2M塩酸(6.90mL、13.8mmol)を用い、かつ、反応温度を55℃として実施例9と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量1.79g、収率88%)を得た。
(Example 13) Production of N- (4-iodophenyl) -2-pyrimidinylamine in water solvent in the presence of 2 molar equivalents of hydrochloric acid at 55 ° C:
N- (4-iodophenyl) -2-pyrimidinylamine was used in the same manner as in Example 9 except that 2M hydrochloric acid (6.90 mL, 13.8 mmol) was used in place of 1M hydrochloric acid and the reaction temperature was 55 ° C. (Yield 1.79 g, yield 88%) was obtained.

(実施例14)塩酸0.5モル当量の存在下、水溶媒中、75℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
反応温度を75℃として比較例15と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量5.11g、収率75%)を得た。
(Example 14) Production of N- (4-iodophenyl) -2-pyrimidinylamine in water solvent in the presence of 0.5 molar equivalent of hydrochloric acid at 75 ° C:
The reaction temperature was 75 ° C., and the same operation as in Comparative Example 15 was performed to obtain N- (4-iodophenyl) -2-pyrimidinylamine (yield 5.11 g, yield 75%).

(実施例15)塩酸1モル当量の存在下、水溶媒中、75℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
0.5M塩酸の代わりに1M塩酸(23.0mL、23.0mmol)を用い、かつ、反応温度を75℃として比較例15と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量5.11g、収率75%)を得た。
(Example 15) Production of N- (4-iodophenyl) -2-pyrimidinylamine under the conditions of 75 ° C in an aqueous solvent in the presence of 1 molar equivalent of hydrochloric acid:
1M hydrochloric acid (23.0 mL, 23.0 mmol) was used instead of 0.5 M hydrochloric acid, and the reaction temperature was 75 ° C., and the same operation as in Comparative Example 15 was performed. Pyrimidinylamine (yield 5.11 g, 75% yield) was obtained.

(比較例17)塩酸1モル当量の存在下、水溶媒中、90℃の条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
反応温度を90℃として実施例9と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量1.35g、収率66%)を得た。
(Comparative Example 17) Production of N- (4-iodophenyl) -2-pyrimidinylamine under the condition of 90 ° C in an aqueous solvent in the presence of 1 molar equivalent of hydrochloric acid:
The reaction temperature was 90 ° C., and the same operation as in Example 9 was performed to obtain N- (4-iodophenyl) -2-pyrimidinylamine (yield 1.35 g, yield 66%).

実施例1及び9〜15並びに比較例15〜17の結果に基づき、本発明の製造方法における温度及び酸の当量とN−(ヨードフェニル)ピリミジニルアミン誘導体の収率との関係を表6に示す。   Based on the results of Examples 1 and 9 to 15 and Comparative Examples 15 to 17, the relationship between the temperature and the equivalent of acid in the production method of the present invention and the yield of the N- (iodophenyl) pyrimidinylamine derivative is shown in Table 6. .

Figure 2013112658
Figure 2013112658

その結果、反応温度が、40〜75℃の場合に良好な収率でN−(ヨードフェニル)ピリミジニルアミン誘導体が得られ、55℃付近で特に高い収率となり、酸の当量が、0.2〜2モル当量の場合に良好な収率でN−(ヨードフェニル)ピリミジニルアミン誘導体が得られることが分かった。   As a result, an N- (iodophenyl) pyrimidinylamine derivative was obtained in a good yield when the reaction temperature was 40 to 75 ° C, and a particularly high yield was obtained around 55 ° C. It was found that the N- (iodophenyl) pyrimidinylamine derivative was obtained in a good yield in the case of ˜2 molar equivalent.

(比較例18)水溶媒中、2−クロロピリミジン1.1モル当量を用いた条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
アルゴン雰囲気下、4−ヨードアニリン(5.00g、22.8mmol)、2−クロロピリミジン(2.75g、24.0mmol)に1M塩酸(23.0mL、23.0mmol)を加え、50℃にて24時間撹拌した。反応液を室温に冷却し、1M水酸化ナトリウム水溶液(66mL)を加え、酢酸エチル(150mL)で抽出した。有機層を飽和塩化ナトリウム水溶液で洗浄し、無水硫酸ナトリウムで乾燥した。無水硫酸ナトリウムを濾別した後、濾液を濃縮した。残渣を再結晶(溶媒:アセトニトリル)で精製した。N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量4.49g、収率66%)を得た。
(Comparative Example 18) Production of N- (4-iodophenyl) -2-pyrimidinylamine under conditions using 1.1 molar equivalent of 2-chloropyrimidine in an aqueous solvent:
Under an argon atmosphere, 1-M hydrochloric acid (23.0 mL, 23.0 mmol) was added to 4-iodoaniline (5.00 g, 22.8 mmol) and 2-chloropyrimidine (2.75 g, 24.0 mmol) at 50 ° C. Stir for 24 hours. The reaction mixture was cooled to room temperature, 1M aqueous sodium hydroxide solution (66 mL) was added, and the mixture was extracted with ethyl acetate (150 mL). The organic layer was washed with a saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. After anhydrous sodium sulfate was filtered off, the filtrate was concentrated. The residue was purified by recrystallization (solvent: acetonitrile). N- (4-iodophenyl) -2-pyrimidinylamine (yield 4.49 g, 66% yield) was obtained.

(実施例16)水溶媒中、2−クロロピリミジン1.2モル当量を用いた条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
2−クロロピリミジンの使用量を3.18g(27.7mmol)として比較例18と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量5.31g、収率78%)を得た。
(Example 16) Production of N- (4-iodophenyl) -2-pyrimidinylamine under conditions using 1.2 molar equivalents of 2-chloropyrimidine in an aqueous solvent:
The amount of 2-chloropyrimidine used was 3.18 g (27.7 mmol), and the same operation as in Comparative Example 18 was performed to give N- (4-iodophenyl) -2-pyrimidinylamine (yield 5.31 g, 78% yield). )

(実施例17)水溶媒中、2−クロロピリミジン1.3モル当量を用いた条件でのN−(4−ヨードフェニル)−2−ピリミジニルアミンの製造:
2−クロロピリミジンの使用量を3.40g(29.7mmol)として比較例18と同様の操作を行い、N−(4−ヨードフェニル)−2−ピリミジニルアミン(収量5.40g、収率80%)を得た。
Example 17 Production of N- (4-iodophenyl) -2-pyrimidinylamine under conditions using 1.3 molar equivalents of 2-chloropyrimidine in an aqueous solvent:
The amount of 2-chloropyrimidine used was 3.40 g (29.7 mmol), and the same operation as in Comparative Example 18 was performed. N- (4-iodophenyl) -2-pyrimidinylamine (yield 5.40 g, yield 80%) )

比較例18並びに実施例16及び17の結果に基づき、本発明の製造方法における2−クロロピリミジン誘導体の当量とN−(ヨードフェニル)ピリミジニルアミン誘導体の収率との関係を表7に示す。   Based on the results of Comparative Example 18 and Examples 16 and 17, Table 7 shows the relationship between the equivalent amount of the 2-chloropyrimidine derivative and the yield of the N- (iodophenyl) pyrimidinylamine derivative in the production method of the present invention.

Figure 2013112658
Figure 2013112658

その結果、2−クロロピリミジン誘導体の当量が1.2当量以上の場合に良好な収率でN−(ヨードフェニル)ピリミジニルアミン誘導体が得られることが分かった。   As a result, it was found that the N- (iodophenyl) pyrimidinylamine derivative was obtained in good yield when the equivalent of the 2-chloropyrimidine derivative was 1.2 equivalents or more.

本発明の製造方法によれば、N−(ヨードフェニル)ピリミジニルアミン誘導体を温和な条件下で高収率に製造でき、医薬品の合成中間体として工業的に生産可能な製造効率及び精製効率を実現できる。
According to the production method of the present invention, an N- (iodophenyl) pyrimidinylamine derivative can be produced in high yield under mild conditions, and production efficiency and purification efficiency that can be industrially produced as a pharmaceutical synthesis intermediate can be realized. it can.

Claims (4)

N−(ヨードフェニル)ピリミジニルアミン誘導体の製造方法であり、
一般式(I)で示されるヨードアニリン誘導体と、一般式(II)で示される2−クロロピリミジン誘導体とを、水溶媒中、塩酸、リン酸、酢酸及びメタンスルホン酸からなる群から選択される酸の存在下、40〜75℃の温度で反応させ、一般式(III)で示されるN−(ヨードフェニル)ピリミジニルアミン誘導体を得る工程を備える、製造方法。
Figure 2013112658
Figure 2013112658
[式中、R、R及びRは、それぞれ独立に水素原子又は炭素数1〜5のアルキル基を表す。]
Figure 2013112658
[式中、R、R及びRは、それぞれ独立に水素原子又は炭素数1〜5のアルキル基を表す。]
A method for producing an N- (iodophenyl) pyrimidinylamine derivative,
The iodoaniline derivative represented by the general formula (I) and the 2-chloropyrimidine derivative represented by the general formula (II) are selected from the group consisting of hydrochloric acid, phosphoric acid, acetic acid and methanesulfonic acid in an aqueous solvent. A production method comprising a step of obtaining an N- (iodophenyl) pyrimidinylamine derivative represented by the general formula (III) by reacting at a temperature of 40 to 75 ° C in the presence of an acid.
Figure 2013112658
Figure 2013112658
[In formula, R < 1 >, R < 2 > and R < 3 > represent a hydrogen atom or a C1-C5 alkyl group each independently. ]
Figure 2013112658
[In formula, R < 1 >, R < 2 > and R < 3 > represent a hydrogen atom or a C1-C5 alkyl group each independently. ]
前記2−クロロピリミジン誘導体の量は、前記ヨードアニリン誘導体に対して1.2〜2モル当量であり、
前記酸の量は、前記ヨードアニリン誘導体に対して0.2〜2モル当量である、請求項1記載の製造方法。
The amount of the 2-chloropyrimidine derivative is 1.2 to 2 molar equivalents relative to the iodoaniline derivative,
The amount of the said acid is a manufacturing method of Claim 1 which is 0.2-2 molar equivalent with respect to the said iodoaniline derivative.
、R及びRは、それぞれ独立に水素原子又はメチル基を表す、請求項1又は2記載の製造方法。 The manufacturing method according to claim 1 or 2, wherein R 1 , R 2 and R 3 each independently represents a hydrogen atom or a methyl group. 及びRは、それぞれ独立に水素原子又はメチル基を表し、Rは、水素原子を表し、前記温度は、50〜60℃である、請求項1〜3のいずれか一項記載の製造方法。
R 1 and R 3 each independently represent a hydrogen atom or a methyl group, R 2 represents a hydrogen atom, and the temperature is 50 to 60 ° C. Production method.
JP2011261321A 2011-11-30 2011-11-30 Method for producing N- (iodophenyl) pyrimidinylamine derivative Expired - Fee Related JP5724851B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011261321A JP5724851B2 (en) 2011-11-30 2011-11-30 Method for producing N- (iodophenyl) pyrimidinylamine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011261321A JP5724851B2 (en) 2011-11-30 2011-11-30 Method for producing N- (iodophenyl) pyrimidinylamine derivative

Publications (2)

Publication Number Publication Date
JP2013112658A true JP2013112658A (en) 2013-06-10
JP5724851B2 JP5724851B2 (en) 2015-05-27

Family

ID=48708523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011261321A Expired - Fee Related JP5724851B2 (en) 2011-11-30 2011-11-30 Method for producing N- (iodophenyl) pyrimidinylamine derivative

Country Status (1)

Country Link
JP (1) JP5724851B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003030909A1 (en) * 2001-09-25 2003-04-17 Bayer Pharmaceuticals Corporation 2- and 4-aminopyrimidines n-substtituded by a bicyclic ring for use as kinase inhibitors in the treatment of cancer
WO2006068213A1 (en) * 2004-12-24 2006-06-29 Toray Industries, Inc. Glycine derivative and use thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003030909A1 (en) * 2001-09-25 2003-04-17 Bayer Pharmaceuticals Corporation 2- and 4-aminopyrimidines n-substtituded by a bicyclic ring for use as kinase inhibitors in the treatment of cancer
WO2006068213A1 (en) * 2004-12-24 2006-06-29 Toray Industries, Inc. Glycine derivative and use thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JPN6015007311; The Journal of Organic Chemistry 73(3), 2008, 931-939 *

Also Published As

Publication number Publication date
JP5724851B2 (en) 2015-05-27

Similar Documents

Publication Publication Date Title
AU2018383864B2 (en) Method for synthesis of Roxadustat and intermediate compounds thereof
KR20150018524A (en) Process for the preparation of 2-deoxy-2-fluoro-2-methyl-d-ribofuranosyl nucleoside compounds
KR20230137282A (en) Intermediates useful for the synthesis of a selective inhibitor against protein kinase and processes for preparing the same
KR101728443B1 (en) Method for Producing Benzyl Ester 2-aminonicotinicotinate Derivative
WO2010122794A1 (en) Process for production of pyrazinecarboxylic acid derivative, and intermediate for the production
JP5724851B2 (en) Method for producing N- (iodophenyl) pyrimidinylamine derivative
KR20130090360A (en) Method for preparing compounds through a novel michael-addition reaction using water or various acids as additives
JP4879907B2 (en) Process for producing phenyl 2-pyrimidinyl ketones and novel intermediates thereof
JP6961595B2 (en) Method for producing 4-alkoxy-3-trifluoromethylbenzyl alcohol
US8962863B2 (en) Process for the synthesis of substituted gamma lactams
JP3564982B2 (en) 4-Fluoro-3-oxocarboxylic acid ester and method for producing the same
WO2011118625A1 (en) Method for producing optically active n-monoalkyl-3-hydroxy-3-arylpropylamine compound
JP5448572B2 (en) Acetyl compound, method for producing the acetyl compound, and method for producing a naphthol compound using the acetyl compound
JP6477187B2 (en) Process for producing 2-amino-6-methylnicotinic acid ester
CA2965590A1 (en) Method for the preparation of 1-(2-halogen-ethyl)-4 piperidine-carboxylic acid ethyl esters
JP5205971B2 (en) Method for producing tetrahydropyran compound
JP4561635B2 (en) Process for producing 4-alkoxycarbonyltetrahydropyran or tetrahydropyranyl-4-carboxylic acid
JP5396841B2 (en) Process for producing α-trifluoromethyl-β-substituted-β-amino acids
JPWO2006083010A1 (en) Method for producing 4-acetylpyrimidine compound and crystal thereof
JPWO2005058859A1 (en) Process for producing 3- (4-tetrahydropyranyl) -3-oxopropanoic acid alkyl compound and 4-acyltetrahydropyran
JP4627625B2 (en) Method for producing N-acetylcytidines
JP5763313B2 (en) Process for producing 2- (1-benzothiophen-5-yl) ethanol
KR20050062944A (en) New process for preparing diisopropyl ((1-((2-amino-6-chloro-9h-purin-9-yl)methyl)cyclopropyl)oxy)-methylphosphonate
KR20050062940A (en) New process for preparing diisopropyl ((1-((2-amino-6-halo-9h-purin-9-yl)methyl)cyclopropyl)oxy)-methylphosphonate
JP4862994B2 (en) Selective production method of 2- (2-hydroxyethoxy) isoindoline-1,3-dione compound

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140422

TRDD Decision of grant or rejection written
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150219

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20150303

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150316

LAPS Cancellation because of no payment of annual fees