JPS62298596A - Production of platinum complex - Google Patents

Production of platinum complex

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Publication number
JPS62298596A
JPS62298596A JP14181086A JP14181086A JPS62298596A JP S62298596 A JPS62298596 A JP S62298596A JP 14181086 A JP14181086 A JP 14181086A JP 14181086 A JP14181086 A JP 14181086A JP S62298596 A JPS62298596 A JP S62298596A
Authority
JP
Japan
Prior art keywords
platinum
aminomethylpyrrolidine
optically active
formula
usually
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
JP14181086A
Other languages
Japanese (ja)
Inventor
Narimitsu Honda
本多 成光
Kazumi Morikawa
一実 森川
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.)
Chugai Pharmaceutical Co Ltd
Original Assignee
Chugai Pharmaceutical 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 Chugai Pharmaceutical Co Ltd filed Critical Chugai Pharmaceutical Co Ltd
Priority to JP14181086A priority Critical patent/JPS62298596A/en
Publication of JPS62298596A publication Critical patent/JPS62298596A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain a platinum complex useful as a carcinostatic agent in a short time in high efficiency, by reacting aminomethylpyrrolidine to a reaction liquid of K2PtCl4 and KSCN and reacting the reaction product with cyclobutanedicarboxylic acid silver salt under a specific condition. CONSTITUTION:Platinum(II) potassium chloride is made to react with potassium thiocyanate preferably at 20-80 deg.C usually for 0.5-5hr. 2-Aminomethylpyrrolidine or its optically active isomer is added to the reaction liquid and reacted usually at 0-100 deg.C for 0.5-10hr to obtain cis-dithiocyanato(2-aminomethylpyrrolidine) platinum(II) of formula I or its optically active isomer. The compound is suspended in water and the suspension is added with silver salt of 1,1- cyclobutanedicarboxylic acid and reacted at 0-100 deg.C usually for 0.5-10hr to obtain the objective compound of formula II or its optically active isomer.

Description

【発明の詳細な説明】 工業」J」u帽た1 本発明は、制癌剤として有用である1、1−シクロブタ
ンジ力ルポキシラト(2−アミノメチルピロリジン)プ
ラチナム(n)およびその光学活性体の製造方法に関す
る。さらに詳しくは、プラチナム(II)ポタシウムク
ロライドとチオシアン酸カリウムとの反応液に、2−ア
ミノメチルピロリジンまたはその光学活性体を反応させ 式 で表されるシス−ジチオシアナト(2−アミノメチルピ
ロリジン)プラチナム(n)またはその光学活性体を得
て、これを水に懸濁し、さらに1,1−シクロブタンジ
カルボン酸の銀塩を加え、0〜100°Cで反応させる
ことを特徴とする で表わされる白金錯体またはその光学活性体の製造方法
に関する。
Detailed Description of the Invention The present invention relates to the production of 1,1-cyclobutanedihydrupoxylate(2-aminomethylpyrrolidine)platinum (n) and its optically active substance, which are useful as anticancer agents. Regarding the method. More specifically, cis-dithiocyanato(2-aminomethylpyrrolidine)platinum ( n) or an optically active substance thereof is obtained, suspended in water, further added with a silver salt of 1,1-cyclobutanedicarboxylic acid, and reacted at 0 to 100°C. Or relates to a method for producing an optically active substance thereof.

従】じ刈支術− ローゼンベルグらによるンスプラチン(CODP)の抗
腫瘍活性の発見[ネイチャーm385 (1989)]
以来、抗腫瘍活性を有する白金錯体の研究が盛んに行わ
れるようになり、各種のリガンドを有する有機白金錯体
が多数合成され、その抗腫瘍活性も検討されている。そ
の中でも(式1)で表わされる1、1−シクロブタンジ
カルボキシラト(2−アミノメチルピロリジン)プラチ
ナム(II)およびその光学活性体が特に優れた抗腫瘍
活性を打している。この白金錯体はジャーナルΦオブ・
メディシナル・ケミストリー(J、Med、Chem、
)。
[Follow] Jarijutsu - Discovery of anti-tumor activity of cosplatin (CODP) by Rosenberg et al. [Nature m385 (1989)]
Since then, research on platinum complexes having antitumor activity has been actively conducted, and a large number of organic platinum complexes having various ligands have been synthesized, and their antitumor activity is also being investigated. Among them, 1,1-cyclobutanedicarboxylate(2-aminomethylpyrrolidine)platinum (II) represented by (Formula 1) and its optically active substance exhibit particularly excellent antitumor activity. This platinum complex was published in the journal Φ of
Medicinal Chemistry (J, Med, Chem,
).

q  1315(1978)、特開昭59−13936
0号、特開昭54−48752号等に記載されている下
式で示される製造方法により合成されていた(特願昭5
9−189657号)。
q 1315 (1978), JP-A-59-13936
No. 0, JP-A No. 54-48752, etc., it was synthesized by the manufacturing method shown by the following formula (Japanese Patent Application No. 54-48752).
No. 9-189657).

(式中、Mは水素原子またはナトリウム原子をわ表わす
。) ロ 、  よ・  −−F占 上記の従来の製造方法は以下に示す通りの問題点を有し
ていた。すなわち、 ■ (式2)で表わされるジアミンを出発物質として目
的化合物である(式1)で表わされる白金錯体を得るま
でに3行程を要し、合成にかなりの日数を要した。
(In the formula, M represents a hydrogen atom or a sodium atom.) B, YO, --F The conventional manufacturing method described above had the following problems. That is, (1) It took three steps to obtain the target compound, the platinum complex represented by Formula 1, using the diamine represented by Formula 2 as a starting material, and the synthesis required a considerable number of days.

■ (式3)で表わされるジクロロ体からジニトラト体
を合成する行程において、溶媒として用いた水を低温で
濃縮しなければならず後処理に非常に時間を要した。
(2) In the step of synthesizing the dinitrate compound from the dichloro compound represented by (Formula 3), water used as a solvent had to be concentrated at a low temperature, which required a very long post-treatment.

■ (式3)で表わされるジクロロ体からジニトラト体
を合成する行程において生成する塩化銀は粒子が小さく
その除去には非常に手間がかかった。
(2) The silver chloride produced in the process of synthesizing the dinitrate compound from the dichloro compound represented by (Formula 3) has small particles and requires much effort to remove.

などである。そこで本発明者らは、短時間で効率の良い
(式1)で表わされる白金錯体の製造方法を見い出すべ
く鋭意研究を重ね次のような手段により、本発明の製造
方法を見い出し、上記の問題点を解決した。
etc. Therefore, the present inventors conducted extensive research to find a short and efficient method for producing the platinum complex represented by formula 1, and by the following means, discovered the production method of the present invention, and solved the above problem. Resolved the point.

口 占t t  ための−; 本発明者らは、プラチナム(II)ボタシウムクロライ
ドとチオシアン酸カリウムとの反応液に2−アミノメチ
ルピロリジンまたはその光学活性体を反応させ、シス−
ジチオシアナト(2−アミノメチルピロリジン)プラチ
ナム(II)またはその光学活性体を得て、これを水に
懸濁し、さらに1,1−シクロブタンジカルボン酸の銀
塩を加え、0〜100″Cで反応させることを特徴とす
る1、1−シクロブタンジ力ルポキシラト(2−アミノ
メチルピロリジン)プラチナム(n)またはその光学活
性体の製造方法を確立し、前記の問題点を解決し、本発
明を完成するに至った。
The present inventors reacted 2-aminomethylpyrrolidine or its optically active substance with a reaction solution of platinum (II) botanium chloride and potassium thiocyanate to form a cis-
Obtain dithiocyanato(2-aminomethylpyrrolidine)platinum (II) or its optically active substance, suspend it in water, add silver salt of 1,1-cyclobutanedicarboxylic acid, and react at 0 to 100"C. In order to solve the above-mentioned problems and complete the present invention, we have established a method for producing 1,1-cyclobutanedihydrupoxylate(2-aminomethylpyrrolidine)platinum (n) or its optically active substance, which is characterized by the following: It's arrived.

本発明の製造方法は下式に示す通りである。The manufacturing method of the present invention is as shown in the formula below.

本発明の製造方法をさらに詳しく述べる。プラチナム(
II)ボタシウムクロライドと4倍モルのチオシアン酸
カリウムとを水に溶解し、温度O〜100°C好ましく
は20〜80’Cの範囲で通常0.5〜5時間の範囲で
撹拌上反応させ、これに2−アミノメチルピロリジンま
たはその光学活性体をプラチナム(n)ボタシウムクロ
ライドと等モル加え1.侃度O〜100°Cの範囲で通
常0.5〜lO時間の範囲で撹拌した後、生成した固体
をろ取し、水洗して通常温度0〜80’Cの範囲で減圧
上乾燥することにより、(式5)で表わされるシス−ジ
チオシアナト(2−アミノメチルピロリジン)プラチナ
ム(II)またはその光学活性体を得る。
The manufacturing method of the present invention will be described in more detail. Platinum (
II) Botacium chloride and 4 times the mole of potassium thiocyanate are dissolved in water and reacted with stirring at a temperature of 0 to 100°C, preferably 20 to 80°C, usually for 0.5 to 5 hours. , 2-aminomethylpyrrolidine or its optically active substance was added thereto in an equimolar amount as platinum (n) botanium chloride; 1. After stirring for usually 0.5 to 10 hours at a temperature of 0 to 100°C, the solid produced is filtered, washed with water, and dried under reduced pressure at a temperature of 0 to 80°C. Thus, cis-dithiocyanato(2-aminomethylpyrrolidine)platinum (II) represented by (Formula 5) or an optically active substance thereof is obtained.

得られたシス−ジチオシアナト(2−アミノメチルピロ
リジン)プラチナム(■)またはその光学活性体を水に
懸濁し、これに1,1−シクロブタンジカルボン酸の銀
塩を等モル加え、温度0〜100℃、好ましくは20〜
90°Cの範囲で通常0.5〜10時間の範囲で撹拌上
反応させる。反応液をろ過して析出したチオンアン酸銀
を除去し、ろ液を減圧濃縮した後、析出した生成物を水
洗して通常温度0〜80°Cの範囲で減圧上乾燥するこ
とにより(式1)で表わされる1、1−シクロブタンジ
力ルポキシラト(2−アミノメチルピロリジン)プラチ
ナム(■)またはその光学活性体を得る。本発明の様に
シス−ジチオシアナト(2−アミノメチルピロリジン)
プラチナム(n)およびその光学活性体を経由する方法
により、制癌剤として優れている1、1−シクロブタン
ジ力ルポキシラト(2−アミノメチルピロリジン)プラ
チナム(■)およびその光学活性体を効率よく合成でき
る。すなわち、 ■ (式2)で表わされるジアミンを出発物質として目
的物質である(式1)で表わされる白金錯体を得るまで
に3行程を要していたものが本発明の製造方法で合成す
ると2行程に短縮され、合成にかなりの日数を要したも
のが0.5.〜10数時間で行われるようになった。
The obtained cis-dithiocyanato(2-aminomethylpyrrolidine)platinum (■) or its optically active substance was suspended in water, and an equimolar amount of silver salt of 1,1-cyclobutanedicarboxylic acid was added thereto at a temperature of 0 to 100°C. , preferably 20~
The reaction is carried out with stirring at 90°C for usually 0.5 to 10 hours. The reaction solution was filtered to remove precipitated silver thionanate, the filtrate was concentrated under reduced pressure, and the precipitated product was washed with water and dried under reduced pressure at a normal temperature range of 0 to 80°C (Formula 1 ) 1,1-cyclobutanedilypoxylate(2-aminomethylpyrrolidine)platinum (■) or its optically active substance is obtained. As in the present invention, cis-dithiocyanato (2-aminomethylpyrrolidine)
By a method via platinum (n) and its optically active form, 1,1-cyclobutanedilypoxylate (2-aminomethylpyrrolidine) platinum (■), which is excellent as an anticancer agent, and its optically active form can be efficiently synthesized. That is, (1) it took 3 steps to obtain the target substance, a platinum complex represented by formula 1, using the diamine represented by formula 2 as a starting material, but when synthesized by the production method of the present invention, it takes 2 steps. The process was shortened to 0.5, which took a considerable number of days to synthesize. It started to take place in about 10 hours.

■ (式3)で表わされるジクロロ体からジニトラト体
を合成する行程において溶媒として用いた水を低温で4
縮しなければならず、後処理に非常に時間を要していた
ものが本発明の製造方法では、この行程を経由せずに反
応が行われるのでこの行程の作業が省かれ、要する時間
が非常に短縮された。
■ The water used as a solvent in the process of synthesizing the dinitrate compound from the dichloro compound represented by (Formula 3) is heated to 4.
However, in the production method of the present invention, the reaction is performed without going through this step, which eliminates the work in this step and reduces the time required. Very shortened.

■ (式3)で表わされるジクロロ体からジニトラト体
を合成する行程において生成する塩化銀は粒子が小さく
その除去はミリポアフィルタ−などで行わなければなら
ず非常に手間のかかる作業であった。しかし、本発明の
製造方法では塩化銀が生成する行程がなく、合成に要す
る時間が非常に短縮された。
(2) The silver chloride produced in the process of synthesizing the dinitrate compound from the dichloro compound represented by (Formula 3) has small particles and must be removed using a Millipore filter, which is a very time-consuming process. However, in the production method of the present invention, there is no step in which silver chloride is produced, and the time required for synthesis is greatly shortened.

なとのように前記の問題点を解決して本発明を完成した
The present invention was completed by solving the above problems.

以下に例を挙げて説明する。This will be explained below using an example.

1巨匠上 プラチナム(II)ポタシウムクロライド4.15g(
0,01モル)を水100m1に溶解し、これにチオシ
アン酸カリウム3.88g (0,04モル)を加え、
室温で30分間撹拌後、2−アミノメチルピロリジン1
.OOg (0,0fモル)を加える。室温で1時間撹
拌後生成した固体をろ取し、水洗した後、60°Cで3
時間減圧上乾燥し、淡黄色のシス−ジチオシアナト(2
−アミノメチルピロリジン)プラチナム(II) 3.
91g (収率95%)を得る。
1 Master Platinum (II) Potassium Chloride 4.15g (
0.01 mol) was dissolved in 100 ml of water, and 3.88 g (0.04 mol) of potassium thiocyanate was added thereto.
After stirring at room temperature for 30 minutes, 2-aminomethylpyrrolidine 1
.. Add OOg (0,0 fmol). After stirring for 1 hour at room temperature, the solid produced was collected by filtration, washed with water, and then stirred at 60°C for 3 hours.
Dry under reduced pressure for hours, pale yellow cis-dithiocyanato (2
-aminomethylpyrrolidine) platinum(II) 3.
91 g (95% yield) are obtained.

融点 201〜204°C(分解) 元素分析値 分子式C7HHl N4 P t Szと
して実施例1と同様にして(R)−2−アミノメチルピ
ロリジン1.OOg (0,0fモル)を用いて淡黄色
の(R)−シス−ジチオシアナト(2−アミノメチルピ
ロリジン)プラチナム(n)3゜95g(収率96%)
を得る。
Melting point: 201-204°C (decomposed) Elemental analysis value: (R)-2-aminomethylpyrrolidine 1. 3°95 g of pale yellow (R)-cis-dithiocyanato(2-aminomethylpyrrolidine)platinum (n) using OOg (0,0 f mol) (yield 96%)
get.

融点 166〜168°C 元素分析値 分子式Cr7 H,zN4 P t S、
として実施例1と同様にして(S)−2−アミノメチル
ピロリジン1.OOg (0,01モル)を用いて淡黄
色の(S)−シス−ジチオシアナト(2−7ミノメチル
ピロリジン)プラチナム(II)3゜94g(収率96
%)を得る。
Melting point 166-168°C Elemental analysis Molecular formula Cr7H,zN4PtS,
(S)-2-aminomethylpyrrolidine 1. OOg (0.01 mol) was used to prepare 3.94 g of pale yellow (S)-cis-dithiocyanato(2-7minomethylpyrrolidine)platinum(II) (yield 96
%).

融点 166〜169°C 元素分析値 分子式C,H,N4PtSzとして実温」
ト1 実施例1で合成したシス−ジチオシアナト(2−アミノ
メチルピロリジン)プラチナム(n)4゜12g(0,
01モル)を水400m1に!!!!濁させ、これに常
法で合成した1、1−シクロブタンジカルボン酸の銀塩
3.58g (0,0fモル)を加え90℃で3時間撹
拌する。析出したチオシアン酸銀を除去し、得られたろ
液を20m1まで減圧濃縮した後、室温で1時間撹拌す
ると白色結晶状固体が析出する。生成した固体をろ取し
、水洗後60°Cで3時間域圧下乾燥し、1,1−シク
ロブタンジカルボンラト(2−アミツメ千ルビロリジン
)プラチナム(II) 3.46g (収率79%)を
得る。
Melting point 166-169°C Elemental analysis value Molecular formula C, H, N4PtSz (actual temperature)
1 cis-dithiocyanato(2-aminomethylpyrrolidine)platinum (n) synthesized in Example 1 4°12g (0,
01 mol) to 400ml of water! ! ! ! The mixture was made cloudy, and 3.58 g (0.0 fmol) of silver salt of 1,1-cyclobutanedicarboxylic acid synthesized by a conventional method was added thereto and stirred at 90°C for 3 hours. After removing the precipitated silver thiocyanate and concentrating the obtained filtrate under reduced pressure to 20 ml, the mixture was stirred at room temperature for 1 hour to precipitate a white crystalline solid. The generated solid was collected by filtration, washed with water, and then dried under pressure at 60°C for 3 hours to obtain 3.46 g (yield: 79%) of 1,1-cyclobutane dicarbonate (2-amythylvirolidine) platinum (II). .

融点 248〜257°C(分解) 実JLI舛j− 実施例4と同様にして実施例2で合成した(R)−シス
ージチオシアナ+(2−アミノメチルピロリジン)プラ
チナム(II)4.12g (0,01モル)を用いて
(R)−1,1−シクロブタンジカルボンラト(2−ア
ミノメチルピロリジン)プラチナム(IF) 3.59
g (収率82%)を得る。
Melting point: 248-257°C (decomposition) 4.12 g of (R)-cis-dithiocyana + (2-aminomethylpyrrolidine) platinum (II) synthesized in Example 2 in the same manner as in Example 4 ( (R)-1,1-cyclobutanedicarbonate(2-aminomethylpyrrolidine)platinum (IF) using 0.01 mol) 3.59
g (82% yield) is obtained.

実l」L巳 実施例十と同様にして実施例3で合成した(S)−シス
−ジチオシアナト(2−アミノメチルピロリジン)プラ
チナム(II)4.12g (0,01モル)を用いて
(S)−1,1−シクロブタンジ力ルポキシラト(2−
アミノメチルピロリジン)プラチナム(II) 3.8
3g (収率83%)を得る。
Using 4.12 g (0.01 mol) of (S)-cis-dithiocyanato(2-aminomethylpyrrolidine)platinum(II) synthesized in Example 3 in the same manner as in Example 10, (S )-1,1-cyclobutanediylupoxylate (2-
Aminomethylpyrrolidine) Platinum(II) 3.8
3 g (83% yield) are obtained.

光可!μ机牝Light possible! μ machine female

Claims (1)

【特許請求の範囲】 式 ▲数式、化学式、表等があります▼ で表わされる白金錯体またはその光学活性体を製造する
にあたり、プラチナム(II)ポタシウムクロライドとチ
オシアン酸カリウムとの反応液に、2−アミノメチルピ
ロリジンまたはその光学活性体を反応させ、 式 ▲数式、化学式、表等があります▼ で表されるシス−ジチオシアナト(2−アミノメチルピ
ロリジン)プラチナム(II)またはその光学活性体を得
て、これを水に懸濁し、さらに1,1−シクロブタンジ
カルボン酸の銀塩を加え、0〜100℃で反応させるこ
とを特徴とする製造方法。
[Claims] In producing the platinum complex represented by the formula ▲There are mathematical formulas, chemical formulas, tables, etc.▼ or its optically active substance, 2- Aminomethylpyrrolidine or its optically active form is reacted to obtain cis-dithiocyanato(2-aminomethylpyrrolidine)platinum (II) or its optically active form expressed by the formula ▲There are mathematical formulas, chemical formulas, tables, etc.▼, A manufacturing method characterized by suspending this in water, further adding a silver salt of 1,1-cyclobutanedicarboxylic acid, and reacting at 0 to 100°C.
JP14181086A 1986-06-18 1986-06-18 Production of platinum complex Pending JPS62298596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14181086A JPS62298596A (en) 1986-06-18 1986-06-18 Production of platinum complex

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14181086A JPS62298596A (en) 1986-06-18 1986-06-18 Production of platinum complex

Publications (1)

Publication Number Publication Date
JPS62298596A true JPS62298596A (en) 1987-12-25

Family

ID=15300656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14181086A Pending JPS62298596A (en) 1986-06-18 1986-06-18 Production of platinum complex

Country Status (1)

Country Link
JP (1) JPS62298596A (en)

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