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JPH0258279B2 - - Google Patents
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JPH0258279B2 - - Google Patents

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Publication number
JPH0258279B2
JPH0258279B2 JP5698982A JP5698982A JPH0258279B2 JP H0258279 B2 JPH0258279 B2 JP H0258279B2 JP 5698982 A JP5698982 A JP 5698982A JP 5698982 A JP5698982 A JP 5698982A JP H0258279 B2 JPH0258279 B2 JP H0258279B2
Authority
JP
Japan
Prior art keywords
arabinofuranosylcytosine
water
derivative
formula
acrylic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP5698982A
Other languages
Japanese (ja)
Other versions
JPS58174399A (en
Inventor
Takashi Hirano
Satoshi Morimoto
Keishiro Tsuda
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP5698982A priority Critical patent/JPS58174399A/en
Publication of JPS58174399A publication Critical patent/JPS58174399A/en
Publication of JPH0258279B2 publication Critical patent/JPH0258279B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 本発明は新規なアラビノフラノシルシトシン誘
導体及びその製造方法に関するものである。さら
に詳しくいえば、本発明は長い活性持続時間を有
する制がん剤の製造原料として有用な、一般式 (式中のRは水素原子又はメチル基である) で示される新規アラビノフラノシルシトシン誘導
体及びその製造方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel arabinofuranosylcytosine derivative and a method for producing the same. More specifically, the present invention provides a compound having the general formula The present invention relates to a novel arabinofuranosylcytosine derivative represented by the following formula (wherein R is a hydrogen atom or a methyl group) and a method for producing the same.

アラビノフラノシルシトシンCは白血病に有効
な制がん剤として知られているが、これを投与す
ると体内で急速に分解しその効力を失うため、長
時間にわたつて効力を持続させるには、点滴など
により連続的に投与しなければならないという不
便さがある。
Arabinofuranosylcytosine C is known as an anticancer drug that is effective against leukemia, but when administered, it rapidly degrades in the body and loses its efficacy, so in order to maintain its efficacy over a long period of time, It has the inconvenience of having to be administered continuously through an intravenous drip or the like.

他方、医薬の効力を持続させる手段として、有
効成分を適当な重合体に結合し、これを体内で徐
徐に放出させる方法が知られている。そして、ア
ラビノフラノシルシトシンについても、これをカ
ルボキシル基をもつ重合体とカルボジイミドの存
在下で反応させ高分子化する方法が提案されてい
る。しかし、この方法ではアラビノフラノシルシ
トシンの導入率に制限があり、60%以上の導入率
を得ることは困難である上に、使用しうる重合体
も制限され、治療に応じて適した重合体を選ぶこ
とができないという欠点がある。
On the other hand, as a means for sustaining the efficacy of pharmaceuticals, a method is known in which an active ingredient is bound to a suitable polymer and the polymer is gradually released within the body. A method has also been proposed for arabinofuranosylcytosine, in which it is reacted with a polymer having a carboxyl group in the presence of carbodiimide to form a polymer. However, this method has limitations on the introduction rate of arabinofuranosylcytosine, making it difficult to achieve an introduction rate of 60% or more, and also limits the types of polymers that can be used. The drawback is that you cannot choose to combine.

他方、アラビノフラノシルシトシンをアシル化
した誘導体も知られている(特公昭53−5698号公
報)。しかしながら、このものは難水溶性のため
使用方法が制限されるのを免れないという欠点が
ある。
On the other hand, derivatives obtained by acylating arabinofuranosylcytosine are also known (Japanese Patent Publication No. 5698/1983). However, this product has the disadvantage that its usage is inevitably limited due to its poor water solubility.

本発明者らは、このような従来のアラビノフラ
ノシルシトシンの持続性誘導体のもつ欠点を克服
するために、鋭意研究を重ねた結果、先ずアラビ
ノフラノシルシトシンの重合性誘導体を製造し、
これを単独もしくは他の共重合しうる単量体と組
み合わせて重合させれば、活性成分の導入率を高
めたり、任意に制御しうること及び可溶性官能基
を有する単量体と共重合させて使用すれば高い水
溶性を有するアラビノフラノシルシトシン高分子
誘導体が得られることを見出し、この知見に基づ
いて本発明をなすに至つた。
In order to overcome the drawbacks of such conventional long-lasting derivatives of arabinofuranosylcytosine, the present inventors have conducted extensive research and have first produced a polymerizable derivative of arabinofuranosylcytosine,
If this is polymerized alone or in combination with other copolymerizable monomers, the introduction rate of the active ingredient can be increased or controlled as desired, and if it is copolymerized with a monomer having a soluble functional group. It was discovered that an arabinofuranosylcytosine polymer derivative having high water solubility can be obtained by using this method, and based on this finding, the present invention was accomplished.

すなわち、本発明は前記一般式()で示され
るアラビノフラノシルシトシン誘導体を提供する
ものである。
That is, the present invention provides an arabinofuranosylcytosine derivative represented by the general formula ().

このアラビノフラノシルシトシン誘導体は、文
献未載の新規化合物であつて、例えばアクリル酸
又はメタクリル酸あるいはそれらの反応性誘導体
と、アラビノフラノシルシトシンとを反応させる
ことにより効率よく製造することができる。
This arabinofuranosylcytosine derivative is a new compound that has not been described in any literature, and can be efficiently produced by, for example, reacting acrylic acid or methacrylic acid or a reactive derivative thereof with arabinofuranosylcytosine. can.

この際使用されるアクリル酸又はメタクリル酸
の反応性誘導体としては、例えば無水アクリル
酸、アクリル酸ハライド、アクリル酸の活性エス
テル及び対応するメタクリル酸誘導体をあげるこ
とができる。遊離のアクリル酸又はメタクリル酸
を用いることができ、この場合はカルボジイミド
のような縮合剤の存在下で反応させる。
Examples of reactive derivatives of acrylic acid or methacrylic acid used in this case include acrylic anhydride, acrylic acid halides, active esters of acrylic acid, and corresponding methacrylic acid derivatives. Free acrylic or methacrylic acid can be used, in which case it is reacted in the presence of a condensing agent such as a carbodiimide.

これらのアクリル酸又はメタクリル酸成分とア
ラビノフラノシルシトシンとの反応は、適当な溶
媒例えば水、アルコール、テトラヒドロフラン、
ジオキサン、ジメチルホルムアミドなどの中で、
かきまぜながら行うのが有利である。この場合、
必要に応じあまり高くない温度に加熱して行うこ
ともできる。このようにして得た目的化物合は、
溶媒をある程度留去して濃縮後これを不溶性溶剤
中に注加し、沈殿を析出させたもの、この沈殿を
常法に従つて精製すれば、目的生成物が白色針状
結晶として得られる。
The reaction between these acrylic acid or methacrylic acid components and arabinofuranosylcytosine can be carried out using a suitable solvent such as water, alcohol, tetrahydrofuran,
Among dioxane, dimethylformamide, etc.
It is advantageous to do this while stirring. in this case,
It can also be carried out by heating to a not very high temperature if necessary. The target compound obtained in this way is
After distilling off some of the solvent and concentrating, this is poured into an insoluble solvent to form a precipitate. If this precipitate is purified according to a conventional method, the desired product is obtained as white needle-like crystals.

このようにして得られる本発明化物合は、これ
を水溶性重合体を形成する単量体例えばN−ビニ
ルピロリドン、2−ビニルピリジン−N−オキシ
ド、2−(メチルスルフイニル)エチルアクリレ
ート、アクリルアミド、ヒドロキシルエチルメタ
クリレートなどと共重合させることにより持続性
制がん剤として有用な重合体とすることができ
る。
The compound of the present invention obtained in this way can be combined with monomers forming water-soluble polymers such as N-vinylpyrrolidone, 2-vinylpyridine-N-oxide, 2-(methylsulfinyl)ethyl acrylate, By copolymerizing with acrylamide, hydroxylethyl methacrylate, etc., it can be made into a polymer useful as a long-lasting anticancer agent.

次に実施例により本発明をさらに詳細に説明す
る。
Next, the present invention will be explained in more detail with reference to Examples.

実施例 1 水20ml中にアラビノフラノシルシトシンC2.2g
を溶解し、さらにジオキサン60mlを加える。次に
この混合物中へ無水メタクリル酸2.8gを加え、
室温下、48時間かきまぜ、反応を完了させる。次
いで反応混合物を室温下で減圧濃縮後、濃縮液を
n−ヘキサン中に滴下し、析出した沈殿をろ別す
る。この沈殿を水100mlに溶解し、陽イオン交換
樹脂を通して不純分を除いたのち、通過液を凍結
乾燥する。残留物をメタノールとエーテルの混合
物から再結晶することにより、N−メタクリロイ
ル−1,β,D−アラビノフラノシルシトシンが
融点144〜146℃の白色針状結晶として得られる。
収率は70%であつた。このものの物性は以下のと
おりである。
Example 1 2.2 g of arabinofuranosylcytosine C in 20 ml of water
Dissolve and add 60ml of dioxane. Next, 2.8g of methacrylic anhydride was added to this mixture,
Stir at room temperature for 48 hours to complete the reaction. Next, the reaction mixture was concentrated under reduced pressure at room temperature, and the concentrated solution was added dropwise into n-hexane, and the precipitate deposited was filtered off. This precipitate is dissolved in 100 ml of water, passed through a cation exchange resin to remove impurities, and the passed liquid is freeze-dried. By recrystallizing the residue from a mixture of methanol and ether, N-methacryloyl-1,β,D-arabinofuranosylcytosine is obtained as white needle-like crystals with a melting point of 144-146°C.
The yield was 70%. The physical properties of this product are as follows.

元素分析値:C13H17N3O6(分子量311.3)とし
て C H N 計算値(%) 50.15 5.51 13.50 実測値(%) 50.35 5.61 13.40 紫外線吸収スペクトル:ε=8.5×103(302nm)、
1.3×104(255nm) 核磁気共鳴スペクトル:8.3(m)、7.4(m)、6.0
(t)、4.5(t)、4.1、3.9、2.0(S) 薄層クロマトグラフ:ブタノール/酢酸/水
(5:2:3)の混合溶媒で展開したときのRf
=0.33 溶解性:可溶 水(1.2g/ml)、エタノール、メ
タノール 不溶 アセトン、エーテル また、このものの赤外線吸収スペクトルを第1
図に示す。
Elemental analysis value: C 13 H 17 N 3 O 6 (molecular weight 311.3) C H N Calculated value (%) 50.15 5.51 13.50 Actual value (%) 50.35 5.61 13.40 Ultraviolet absorption spectrum: ε = 8.5 × 10 3 (302 nm),
1.3×10 4 (255nm) Nuclear magnetic resonance spectrum: 8.3 (m), 7.4 (m), 6.0
(t), 4.5 (t), 4.1, 3.9, 2.0 (S) Thin layer chromatography: Rf when developed with a mixed solvent of butanol/acetic acid/water (5:2:3)
=0.33 Solubility: Soluble Water (1.2g/ml), ethanol, methanol Insoluble Acetone, ether Also, the infrared absorption spectrum of this product is
As shown in the figure.

実施例 2 無水メタクリル酸2.8gの代りに無水アクリル
酸2.3gを用い、実施例1と全く同様に操作し、
融点121〜123℃の白色針状結晶として、N−アク
リロイル−1,β,D−アラビノフラノシルシト
シンを得た。収率は85%であつた。
Example 2 The procedure was carried out in exactly the same manner as in Example 1, using 2.3 g of acrylic anhydride instead of 2.8 g of methacrylic anhydride.
N-acryloyl-1,β,D-arabinofuranosylcytosine was obtained as white needle-like crystals with a melting point of 121-123°C. The yield was 85%.

このものの物性は以下のとおりである。 The physical properties of this product are as follows.

元素分析値:C12H15N3O6(分子量297.3)とし
て C H N 計算値(%) 48.48 5.10 14.13 実測値(%) 48.61 5.12 14.33 紫外線吸収スペクトル:ε=8.5×103(302nm)、
1.3×104(255nm) 薄層クロマトグラフ:ブタノール/酢酸/水
(5:2:3)の混合溶媒で展開したときのRf
=0.12 また、このものの赤外線吸収スペクトルを第2
図に示す。
Elemental analysis value: C 12 H 15 N 3 O 6 (molecular weight 297.3) C H N Calculated value (%) 48.48 5.10 14.13 Actual value (%) 48.61 5.12 14.33 Ultraviolet absorption spectrum: ε = 8.5 × 10 3 (302 nm),
1.3×10 4 (255nm) Thin layer chromatography: Rf when developed with a mixed solvent of butanol/acetic acid/water (5:2:3)
=0.12 Also, the infrared absorption spectrum of this material is
As shown in the figure.

参考例 実施例1で得たN−メタクリロイル−1,β,
D−アラビノフラノシルシトシン13.4gとN−ビ
ニルピロリドン6.3gとを水50ml中に溶解し、過
硫酸アンモニウム0.1gを加え、アルゴン雰囲気
中において70℃で5時間重合を行つた。反応混合
物を濃縮し、濃縮物をエタノール中に滴下し、得
られた共重合体を再び水に溶解してエタノール中
に再沈させることにより共重合体を製精した
(9.3g)。この共重合体の重量平均分子量は1.6万
であり、250nmの紫外部吸収からアラビノフラ
ノシルシトシンの含有量は43.2重量%であり、水
に易溶であつた。
Reference example N-methacryloyl-1,β, obtained in Example 1
13.4 g of D-arabinofuranosylcytosine and 6.3 g of N-vinylpyrrolidone were dissolved in 50 ml of water, 0.1 g of ammonium persulfate was added, and polymerization was carried out at 70° C. for 5 hours in an argon atmosphere. The reaction mixture was concentrated, the concentrate was added dropwise to ethanol, and the resulting copolymer was dissolved in water again and reprecipitated in ethanol to purify the copolymer (9.3 g). The weight average molecular weight of this copolymer was 16,000, the content of arabinofuranosylcytosine was 43.2% by weight based on ultraviolet absorption at 250 nm, and it was easily soluble in water.

なお、N−メタクリロイル−1,β,D−アラ
ビノフラノシルシトシンに対応する飽和アシル基
を有するN−イソブチル−1,β,D−アラビノ
フラノシルシトシンは水に難溶であり、重合に必
要な二重結合を有していないのでN−ビニルピロ
リドンと共重合させることはできない。さらに既
知の不飽和アシル化誘導体(特公昭53−5698号)
のオレオイル基を有する1,β,D−アラビノフ
ラノシルシトシンは二重結合を有しているが、N
−ビニルピロリドンとは共重合しない。
Note that N-isobutyl-1,β,D-arabinofuranosylcytosine, which has a saturated acyl group corresponding to N-methacryloyl-1,β,D-arabinofuranosylcytosine, is poorly soluble in water and difficult to polymerize. Since it does not have the necessary double bond, it cannot be copolymerized with N-vinylpyrrolidone. Furthermore, known unsaturated acylated derivatives (Special Publication No. 53-5698)
1,β,D-arabinofuranosylcytosine with an oleoyl group has a double bond, but N
-Does not copolymerize with vinylpyrrolidone.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はN−メタクリロイル−1,β,D−ア
ラビノフラノシルシトシンの赤外線吸収スペクト
ル図、第2図はN−アクリロイル−1,β,D−
アラビノフラノシルシトシンの赤外線吸収スペク
トル図である。
Figure 1 is an infrared absorption spectrum diagram of N-methacryloyl-1,β,D-arabinofuranosylcytosine, and Figure 2 is N-acryloyl-1,β,D-
It is an infrared absorption spectrum diagram of arabinofuranosylcytosine.

Claims (1)

【特許請求の範囲】 1 一般式 (式中のRは水素原子又はメチル基である) で示されるアラビノフラノシルシトシン誘導体。 2 アクリル酸又はメタクリル酸あるいはそれら
の反応性誘導体と、アラビノフラノシルシトシン
とを反応させることを特徴とする、一般式 (式中のRは水素原子又はメチル基である) で示されるアラビノフラノシルシトシン誘導体の
製造方法。
[Claims] 1. General formula (R in the formula is a hydrogen atom or a methyl group) An arabinofuranosylcytosine derivative represented by the following. 2 General formula characterized by reacting acrylic acid or methacrylic acid or a reactive derivative thereof with arabinofuranosylcytosine (R in the formula is a hydrogen atom or a methyl group) A method for producing an arabinofuranosylcytosine derivative represented by the following formula.
JP5698982A 1982-04-06 1982-04-06 Arabinofuranosylcytosine derivative having polymerizability and preparation thereof Granted JPS58174399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5698982A JPS58174399A (en) 1982-04-06 1982-04-06 Arabinofuranosylcytosine derivative having polymerizability and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5698982A JPS58174399A (en) 1982-04-06 1982-04-06 Arabinofuranosylcytosine derivative having polymerizability and preparation thereof

Publications (2)

Publication Number Publication Date
JPS58174399A JPS58174399A (en) 1983-10-13
JPH0258279B2 true JPH0258279B2 (en) 1990-12-07

Family

ID=13042898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5698982A Granted JPS58174399A (en) 1982-04-06 1982-04-06 Arabinofuranosylcytosine derivative having polymerizability and preparation thereof

Country Status (1)

Country Link
JP (1) JPS58174399A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018080269A (en) * 2016-11-17 2018-05-24 キヤノン株式会社 Polymer
JP6894747B2 (en) * 2017-04-19 2021-06-30 キヤノン株式会社 Polymer

Also Published As

Publication number Publication date
JPS58174399A (en) 1983-10-13

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