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JP4330097B2 - 2- (Hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid and method for producing the same - Google Patents
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JP4330097B2 - 2- (Hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid and method for producing the same - Google Patents

2- (Hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid and method for producing the same Download PDF

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Publication number
JP4330097B2
JP4330097B2 JP2000018568A JP2000018568A JP4330097B2 JP 4330097 B2 JP4330097 B2 JP 4330097B2 JP 2000018568 A JP2000018568 A JP 2000018568A JP 2000018568 A JP2000018568 A JP 2000018568A JP 4330097 B2 JP4330097 B2 JP 4330097B2
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Prior art keywords
hydroxycarbonyl
acid
general formula
ethyl
amino
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JP2001206889A (en
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ラグーリン・ワレーリィ・ウラジーミロビィッチ
ロシコ・リューボフ・フョードロブナ
サラトフスキィフ・イリーナ・ワシリエブナ
ゼフィーロフ・ニコライ・セラフィーモビィッチ
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Nippon Chemical Industrial Co Ltd
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Nippon Chemical Industrial Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、生理活性物質及びその中間体原料として有用な新規なアミノホスフィン酸誘導体およびその製造方法に関するものである。
【0002】
【従来の技術】
従来、下記一般式(5):
【0003】
【化5】

Figure 0004330097
【0004】
(式中、Rはメチル基、水酸基を示す。)で表わされるアミノホスフィン酸誘導体やアミノホスホン酸誘導体は、生理活性物質として知られている。例えば、Rが水酸基、n=3のD−2−アミノ−5−ホスホノペンタン酸と、Rが水酸基、n=5のD−2−アミノ−7−ホスホノヘプタン酸は、非常に生理活性が高く、選択的NMDA拮抗物質で、抗てんかん薬作用がある。またRが水酸基、n=2のL−2−アミノ−4−ホスホノブタン酸は、代謝性グルタミン酸の作用薬であり、Rがメチル基、n=2のホスホノトリシンはグルタミン合成酵素(植物、バクテリアにおけるアンモニア代謝において主要な働きを行う酵素。)を阻害する等が知られている。
また、下記一般式(6)、(7)及び(8):
【0005】
【化6】
Figure 0004330097
【0006】
【化7】
Figure 0004330097
【0007】
【化8】
Figure 0004330097
【0008】
(式中、AおよびBは、炭素数1〜6のアルキレン基、オルト−、メタ−、パラ−CH264CH2、CH2CH2OCH2CH2、CH=CHCH2又はCH2CH=CHCH2を示す。YはCOOH、PO(OH)2を示す。)で表わされる含リンアミノ酸は、人赤血球のプリンヌクレオシドホスホリラーゼの阻害剤として、或いはGABABレセプターの作用物質、拮抗物質として興味が持たれている(J.L.Kelley e a.,J.Med.Chem.,1995,38,1005-1014,W.Frorestl a.,J.Med.Chem.,1995,38,3297-3312,3313-3331)。
また、リン原子を含有するある種のアミノ酸は、アルツハイマー病等の神経性の病気やてんかん症等に対して薬理作用があることも知られている。
【0009】
【発明が解決しようとする課題】
本発明者らは、新規なアミノホスフィン酸について鋭意研究を重ねた結果、前記一般式(1)で表わされる2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸を見出した。
即ち、本発明は新規なアミノホスフィン酸およびその製造方法を提供することを目的とする。
【0010】
【課題を解決するための手段】
本発明が提供しようとするアミノホスフィン酸は、下記一般式(1):
【0011】
【化9】
Figure 0004330097
【0012】
で表わされる2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸であることを構成上の特徴とする。
また、その製造方法は、下記一般式(2):
【0013】
【化10】
Figure 0004330097
【0014】
(式中、Rは炭素数1〜5の低級アルキル基)で表わされるビニル基を有するホスフィン酸誘導体と、下記一般式(3):
【0015】
【化11】
Figure 0004330097
【0016】
(式中、Rは前記と同義。)で表わされるアセトアミドマロン酸エステルとを反応させて、下記一般式(4):
【0017】
【化12】
Figure 0004330097
【0018】
(式中Rは、前記と同義。)で表わされるホスフィン酸アミド誘導体を得、次いで酸性下に加水分解反応を行うことを構成上の特徴とする。
【0019】
【発明の実施の形態】
本発明のアミノホスフィン酸は、前記一般式(1)で表わされる2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸であり、このアミノホスフィン酸は両性の性質を有していることから、酸付加塩及び塩基との塩を形成することができる。
かかる酸付加塩としては、例えば、ハロゲン化水素酸、硫酸又はリン酸との該化合物の医薬として許容され得る塩、例えば塩酸塩、硫化水素酸塩、硫酸塩、脂肪族もしくは芳香族スルホン酸、N−置換スルファミン酸との医薬として許容され得る塩、例えばメタンスルホン酸塩、ベンゼンスルホン酸塩、p−トルエンスルホン酸塩又はN−シクロヘキシルスルファメート等が挙げられる。
【0020】
一方、塩基との塩としては、例えば医薬として許容される塩基と前記一般式(1)で表されるアミノホスフィンとの塩であり、例えばIa族、Ib族、IIb族の金属から誘導される非毒性の金属の塩を形成することができ、このような金属塩としては、例えばナトリウム、カリウム等のアルカリ金属塩、カルシウム、マグネシウム等のアルカリ土類金属塩が挙げられる。その他、アンモニア、有機アミン、アンモニウム塩基、有機アミンとの塩も許容される。
【0021】
本発明の2−(ヒドロキシカルボニル)エチル−3−アミノ−(ヒドロキシカルボニル)プロピルホスフィン酸は、不斉炭素原子の存在に応じて、異性体の混合物の形態、特にラセミ体の形態で存在する。
【0022】
次に、本発明の製造方法について説明する。
本発明の前記一般式(1)で表される2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸の製造方法は、基本的に、前記一般式(2)で表されるビニル基を有するホスフィン酸誘導体と前記一般式(3)で表されるアセトアミドマロン酸エステルとを反応させて、前記一般式(4)で表されるホスフィン酸アミド誘導体を得る第一工程、次いで、得られたホスフィン酸アミド誘導体を酸性下に加水分解反応を行って目的とする前記一般式(1)で表される2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸を得る第二工程からなる。
【0023】
<第一工程>
第一工程での反応原料の一つである前記一般式(2)で表されるビニル基を有するホスフィン酸誘導体は、式中、Rがメチル基、エチル基、プロピル基、ブチル基、ヘプチル基の炭素数1〜5の低級アルキル基であり、この中、メチル基、エチル基のものが好ましい。前記一般式(2)で表されるビニル基を有するホスフィン酸誘導体の具体的な化合物としては、メチル−2−(メトキシカルボニル)エチルビニルホスフィン酸、エチル−2−(エトキシカルボニル)エチルビニルホスフィン酸、プロピル−2−(プロポキシカルボニル)エチルビニルホスフィン酸、ブチル−2−(ブトキシカルボニル)エチルビニルホスフィン酸、等が挙げられる。
かかる前記一般式(2)で表されるビニル基を有するホスフィン酸誘導体は、下記反応式(9)に従って容易に製造することができる(式中、Rは前記と同義、Xはハロゲン原子を示す)(J. Gen. Chem., 1994, vol. 64, No.3 pp.419-422 (in Russian), pp.380-384 (in English)参照)。
【0024】
【化13】
Figure 0004330097
【0025】
【化14】
Figure 0004330097
【0026】
【化15】
Figure 0004330097
【0027】
第一工程のもう一方の反応原料の前記一般式(3)で表されるアセトアミドマロン酸エステルの式中、Rは、メチル基、エチル基、プロピル基、ブチル基、ヘプチル基等の炭素数1〜5の低級アルキル基であり、この中、メチル基、エチル基が好ましい。具体的な化合物を例示すると、ジメチルアセトアミドマロン酸、ジエチルアセドアミドマロン酸、ジプロピルアセトアミドマロン酸、ジブチルアセトアミドマロン酸、ジヘプチルアセトアミドマロン酸等が挙げられる。
前記一般式(2)で表されるビニル基を有するホスフィン酸誘導体に対する前記一般式(3)で表されるアセトアミドマロン酸エステルのモル比は、通常0.5〜2.0、好ましくは0.8〜1.0である。反応温度は、通常40〜80℃、好ましくは50〜70℃であり、反応時間は通常5〜24時間、好ましくは10〜15時間である。
反応溶媒としては、反応原料および生成物に対して不活性な溶媒であれば特に限定はなく、例えば、テトラヒドロフラン、塩化メチレン、アセトン、アセトニトリル、DMF等が挙げられる。
【0028】
本発明において、上記の反応は、アルカリ剤の存在下で行われる。アルカリ剤としては、炭酸ナトリウム、炭酸カリウム等の炭酸アルカリ、水酸化ナトリウム、水酸化カリウム等の水酸化アルカリが挙げられる。
また、かかる反応は所望により、四級アンモニウム塩、四級ホスホニウム塩等の相間移動触媒を用いることができる。
かくして、前記一般式(4)で表されるホスフィン酸アミド誘導体を得ることができるが、本発明では、常法により精製することができる。
【0029】
<第2工程>
次いで、得られた前記一般式(4)で表されるホスフィン酸アミド誘導体を酸性下に加水分解して目的とする前記一般式(1)で表される2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸を得る。
【0030】
酸性化剤としては、特に限定はなく通常の鉱酸を用いることができ、例えば、塩酸、硫酸、リン酸、硝酸等が挙げられる。
前記一般式(4)で表されるホスフィン酸アミド誘導体に対する前記した酸性剤のモル比は、通常10〜30、好ましくは10〜15である。反応時間は、通常10〜30、好ましくは10〜15時間である。
かくすることにより目的とする前記一般式(1)で表される2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸が得られる。反応生成物を精製するには、カラムクロマトグラフィー等の常法の精製手段により精製することができる。
【0031】
実施例
以下、本発明を実施例により詳細に説明するが本発明はこれらに限定されるものではない。
<エチル−2−(エトキシカルボニル)エチルビニルホスフィン酸の調製>
亜りん酸アンモニウム4.0g(0.048モル)、ヘキサメチルジシラザン15ml(0.07モル)を反応容器に仕込み、アルゴン雰囲気下で120〜130℃で2時間反応させた。次いで、反応容器を冷却し、エチルアクリレート5.3ml(0.048モル)をゆっくり反応容器に滴下し、40〜50℃の温度で2時間反応を行った。次いで、1,2−ジブロモエタン21ml(0.24モル)を反応容器に加え、更に120℃で5時間反応させた。
次いで、減圧濃縮し、不純物を除いた後、残留物にエタノールを加え、加熱し環流下に更に反応を行い、反応終了後、濾過し、濾過液を減圧下濃縮した。
次いで、残留物に過剰のトリエチルオルト蟻酸40ml(0.24モル)を加え、加熱し、環流下に反応を行い、反応終了後、生成したエタノールを留去後、蒸留して目的物を3.5g(収率35%)を得た。
【0032】
Figure 0004330097
【0033】
(実施例1)
<2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸の調製>
上記で得られたエチル−2−(エトキシカルボニル)エチルビニルホスフィン酸7.47g(0.034モル)、ジエチルアセトアミドマロン酸6.78g(0.031モル)、炭酸カリウム8.6g、テトラヒドロフラン20mlおよびテトラブチルアンモニウムブロマイド0.5gを反応容器に仕込み、加熱して12時間反応させ、反応終了後、無機物を濾過して除去した後、濾過液をクロロホルムに溶解し、水層のpHが中性になるまで中和し、クロロホルム層を分離、濃縮した。
次いで、残留物に6N塩酸70mlを加え、還流下に15時間反応させた。反応終了後、エーテルを加え分取し、水層を濃縮した。更に、残留物をDowex50w(H+)カラムに吸着させ、0.5〜0.7N塩酸にて流出させることによりニンヒドリン陽性の流出物を集め濃縮後、水−エタノールの混合液に溶解した過剰のプロピレンオキサイドで処理し、生成した結晶を濾過、乾燥して目的物5.3g(収率71.0%)を得た。
【0034】
Figure 0004330097
【0035】
【発明の効果】
上記したとおり、本発明の2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸は、生理活性物質およびその中間体原料として有用な新規なアミノホスフィン酸誘導体であり、また、本発明の製造方法によれば、該化合物を工業的に有利な方法で容易に得ることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a novel aminophosphinic acid derivative useful as a physiologically active substance and its intermediate raw material, and a method for producing the same.
[0002]
[Prior art]
Conventionally, the following general formula (5):
[0003]
[Chemical formula 5]
Figure 0004330097
[0004]
An aminophosphinic acid derivative or aminophosphonic acid derivative represented by the formula (wherein R represents a methyl group or a hydroxyl group) is known as a physiologically active substance. For example, D-2-amino-5-phosphonopentanoic acid in which R is a hydroxyl group and n = 3 and D-2-amino-7-phosphonoheptanoic acid in which R is a hydroxyl group and n = 5 are highly physiologically active. Is a selective NMDA antagonist and has antiepileptic effects. L-2-amino-4-phosphonobutanoic acid having R as a hydroxyl group and n = 2 is an agonist of metabolic glutamic acid, and R is a methyl group, and phosphonotricin having n = 2 is glutamine synthase (ammonia in plants and bacteria). It is known to inhibit enzymes that perform major functions in metabolism.
Further, the following general formulas (6), (7) and (8):
[0005]
[Chemical 6]
Figure 0004330097
[0006]
[Chemical 7]
Figure 0004330097
[0007]
[Chemical 8]
Figure 0004330097
[0008]
(In the formula, A and B are an alkylene group having 1 to 6 carbon atoms, ortho-, meta-, para-CH 2 C 6 H 4 CH 2 , CH 2 CH 2 OCH 2 CH 2 , CH═CHCH 2 or CH. 2 represents CH = CHCH 2 , Y represents COOH, PO (OH) 2 ), and a phosphorus-containing amino acid represented as an inhibitor of purine nucleoside phosphorylase in human erythrocytes, or an agonist or antagonist of GABA B receptor (JLKelley e a., J. Med. Chem., 1995, 38, 1005-1014, W. Frorestl a., J. Med. Chem., 1995, 38, 3297-3312, 3313 -3331).
It is also known that certain amino acids containing a phosphorus atom have a pharmacological action against neurological diseases such as Alzheimer's disease and epilepsy.
[0009]
[Problems to be solved by the invention]
As a result of intensive studies on a novel aminophosphinic acid, the present inventors have obtained 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid represented by the general formula (1). I found it.
That is, an object of the present invention is to provide a novel aminophosphinic acid and a method for producing the same.
[0010]
[Means for Solving the Problems]
The aminophosphinic acid to be provided by the present invention has the following general formula (1):
[0011]
[Chemical 9]
Figure 0004330097
[0012]
A structural feature is that it is 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid represented by the formula:
Moreover, the manufacturing method is the following general formula (2):
[0013]
Embedded image
Figure 0004330097
[0014]
(Wherein R is a lower alkyl group having 1 to 5 carbon atoms) a phosphinic acid derivative having a vinyl group, and the following general formula (3):
[0015]
Embedded image
Figure 0004330097
[0016]
(In the formula, R is as defined above) and is reacted with an acetamidomalonate represented by the following general formula (4):
[0017]
Embedded image
Figure 0004330097
[0018]
(Wherein R is as defined above), and a hydrolytic reaction is then carried out under acidic conditions.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
The aminophosphinic acid of the present invention is 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid represented by the general formula (1), and this aminophosphinic acid has amphoteric properties. Therefore, acid addition salts and salts with bases can be formed.
Such acid addition salts include, for example, pharmaceutically acceptable salts of the compounds with hydrohalic acid, sulfuric acid or phosphoric acid, such as hydrochlorides, hydrosulfides, sulfates, aliphatic or aromatic sulfonic acids, Pharmaceutically acceptable salts with N-substituted sulfamic acids, such as methane sulfonate, benzene sulfonate, p-toluene sulfonate or N-cyclohexyl sulfamate.
[0020]
On the other hand, the salt with a base is, for example, a salt of a pharmaceutically acceptable base and an aminophosphine represented by the general formula (1), and is derived from, for example, a metal of group Ia, group Ib, or group IIb. Non-toxic metal salts can be formed. Examples of such metal salts include alkali metal salts such as sodium and potassium, and alkaline earth metal salts such as calcium and magnesium. In addition, ammonia, organic amines, ammonium bases, and salts with organic amines are acceptable.
[0021]
The 2- (hydroxycarbonyl) ethyl-3-amino- (hydroxycarbonyl) propylphosphinic acid of the present invention exists in the form of a mixture of isomers, particularly in the form of a racemate, depending on the presence of asymmetric carbon atoms.
[0022]
Next, the manufacturing method of this invention is demonstrated.
The method for producing 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid represented by the general formula (1) of the present invention is basically represented by the general formula (2). A first step of obtaining a phosphinic acid amide derivative represented by the general formula (4) by reacting a phosphinic acid derivative having a vinyl group represented by the formula and an acetamidomalonic acid ester represented by the general formula (3). Then, the obtained phosphinic acid amide derivative is subjected to a hydrolysis reaction under acidic conditions, and the target 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) represented by the general formula (1) is obtained. ) It consists of a second step to obtain propylphosphinic acid.
[0023]
<First step>
The phosphinic acid derivative having a vinyl group represented by the general formula (2), which is one of the reaction raw materials in the first step, has the following formula: R is methyl group, ethyl group, propyl group, butyl group, heptyl group The lower alkyl group having 1 to 5 carbon atoms is preferably a methyl group or an ethyl group. Specific examples of the phosphinic acid derivative having a vinyl group represented by the general formula (2) include methyl-2- (methoxycarbonyl) ethylvinylphosphinic acid and ethyl-2- (ethoxycarbonyl) ethylvinylphosphinic acid. Propyl-2- (propoxycarbonyl) ethylvinylphosphinic acid, butyl-2- (butoxycarbonyl) ethylvinylphosphinic acid, and the like.
Such a phosphinic acid derivative having a vinyl group represented by the general formula (2) can be easily produced according to the following reaction formula (9) (wherein R is as defined above, and X is a halogen atom). (See J. Gen. Chem., 1994, vol. 64, No.3 pp.419-422 (in Russian), pp.380-384 (in English)).
[0024]
Embedded image
Figure 0004330097
[0025]
Embedded image
Figure 0004330097
[0026]
Embedded image
Figure 0004330097
[0027]
In the formula of the acetamidomalonic acid ester represented by the general formula (3) of the other reaction raw material in the first step, R is a carbon number of 1 such as methyl group, ethyl group, propyl group, butyl group, heptyl group To 5 lower alkyl groups, among which a methyl group and an ethyl group are preferred. Specific examples of the compound include dimethylacetamidomalonic acid, diethylacedoamidomalonic acid, dipropylacetamidomalonic acid, dibutylacetamidomalonic acid, diheptylacetamidomalonic acid and the like.
The molar ratio of the acetamidomalonic acid ester represented by the general formula (3) to the phosphinic acid derivative having a vinyl group represented by the general formula (2) is usually 0.5 to 2.0, preferably 0.8. 8 to 1.0. The reaction temperature is usually 40 to 80 ° C., preferably 50 to 70 ° C., and the reaction time is usually 5 to 24 hours, preferably 10 to 15 hours.
The reaction solvent is not particularly limited as long as it is an inert solvent for the reaction raw materials and products, and examples thereof include tetrahydrofuran, methylene chloride, acetone, acetonitrile, DMF and the like.
[0028]
In the present invention, the above reaction is performed in the presence of an alkaline agent. Examples of the alkali agent include alkali carbonates such as sodium carbonate and potassium carbonate, and alkali hydroxides such as sodium hydroxide and potassium hydroxide.
Further, for this reaction, a phase transfer catalyst such as a quaternary ammonium salt or a quaternary phosphonium salt can be used as desired.
Thus, the phosphinic acid amide derivative represented by the general formula (4) can be obtained, but in the present invention, it can be purified by a conventional method.
[0029]
<Second step>
Next, the obtained phosphinic acid amide derivative represented by the general formula (4) is hydrolyzed under acidity to give the desired 2- (hydroxycarbonyl) ethyl-3- represented by the general formula (1). Amino-3- (hydroxycarbonyl) propylphosphinic acid is obtained.
[0030]
The acidifying agent is not particularly limited, and an ordinary mineral acid can be used. Examples thereof include hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid and the like.
The molar ratio of the acidic agent to the phosphinic acid amide derivative represented by the general formula (4) is usually 10 to 30, preferably 10 to 15. The reaction time is usually 10 to 30, preferably 10 to 15 hours.
In this way, the desired 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid represented by the general formula (1) is obtained. The reaction product can be purified by a conventional purification means such as column chromatography.
[0031]
EXAMPLES Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto.
<Preparation of ethyl-2- (ethoxycarbonyl) ethylvinylphosphinic acid>
A reaction vessel was charged with 4.0 g (0.048 mol) of ammonium phosphite and 15 ml (0.07 mol) of hexamethyldisilazane, and reacted at 120 to 130 ° C. for 2 hours in an argon atmosphere. Next, the reaction vessel was cooled, and 5.3 ml (0.048 mol) of ethyl acrylate was slowly dropped into the reaction vessel, and the reaction was performed at a temperature of 40 to 50 ° C. for 2 hours. Next, 21 ml (0.24 mol) of 1,2-dibromoethane was added to the reaction vessel, and further reacted at 120 ° C. for 5 hours.
Subsequently, after concentration under reduced pressure and removal of impurities, ethanol was added to the residue, and the mixture was heated and further reacted under reflux. After completion of the reaction, the reaction mixture was filtered and the filtrate was concentrated under reduced pressure.
Next, 40 ml (0.24 mol) of excess triethylorthoformate is added to the residue, and the mixture is heated and reacted under reflux. After completion of the reaction, the ethanol produced is distilled off and distilled to obtain the desired product. 5 g (35% yield) was obtained.
[0032]
Figure 0004330097
[0033]
Example 1
<Preparation of 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid>
7.47 g (0.034 mol) of ethyl-2- (ethoxycarbonyl) ethylvinylphosphinic acid obtained above, 6.78 g (0.031 mol) of diethylacetamidomalonic acid, 8.6 g of potassium carbonate, 20 ml of tetrahydrofuran and Charge 0.5 g of tetrabutylammonium bromide into a reaction vessel, heat and react for 12 hours. After the reaction is complete, remove inorganic substances by filtration, dissolve the filtrate in chloroform, and adjust the pH of the aqueous layer to neutral. The mixture was neutralized until the solution was separated, and the chloroform layer was separated and concentrated.
Next, 70 ml of 6N hydrochloric acid was added to the residue, and the mixture was reacted for 15 hours under reflux. After completion of the reaction, ether was added for separation, and the aqueous layer was concentrated. Further, the residue was adsorbed on a Dowex 50w (H + ) column, and the ninhydrin-positive effluent was collected by concentrating with 0.5 to 0.7N hydrochloric acid, concentrated, and then dissolved in a water-ethanol mixture. The resulting crystals were treated with propylene oxide, and the resulting crystals were filtered and dried to obtain 5.3 g of the desired product (yield 71.0%).
[0034]
Figure 0004330097
[0035]
【The invention's effect】
As described above, 2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid of the present invention is a novel aminophosphinic acid derivative useful as a physiologically active substance and an intermediate raw material thereof, Moreover, according to the production method of the present invention, the compound can be easily obtained by an industrially advantageous method.

Claims (2)

下記一般式(1):
Figure 0004330097
で表わされることを特徴とする2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸。
The following general formula (1):
Figure 0004330097
2- (hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid characterized by
下記一般式(2):
Figure 0004330097
(式中、Rは炭素数1〜5の低級アルキル基)で表わされるビニル基を有するホスフィン酸誘導体と、下記一般式(3):
Figure 0004330097
(式中、Rは前記と同義。)で表わされるアセトアミドマロン酸エステルとを反応させて下記一般式(4):
Figure 0004330097
(式中Rは、前記と同義。)で表わされるホスフィン酸アミド誘導体を得、次いで酸性下に加水分解反応を行うことを特徴とする請求項1記載の2−(ヒドロキシカルボニル)エチル−3−アミノ−3−(ヒドロキシカルボニル)プロピルホスフィン酸の製造方法。
The following general formula (2):
Figure 0004330097
(Wherein R is a lower alkyl group having 1 to 5 carbon atoms) a phosphinic acid derivative having a vinyl group, and the following general formula (3):
Figure 0004330097
(Wherein, R is as defined above) is reacted with an acetamidomalonate represented by the following general formula (4):
Figure 0004330097
The phosphinic acid amide derivative represented by the formula (wherein R is as defined above) is obtained, and then the hydrolysis reaction is carried out under acidic conditions. 2- (hydroxycarbonyl) ethyl-3- A method for producing amino-3- (hydroxycarbonyl) propylphosphinic acid.
JP2000018568A 2000-01-27 2000-01-27 2- (Hydroxycarbonyl) ethyl-3-amino-3- (hydroxycarbonyl) propylphosphinic acid and method for producing the same Expired - Fee Related JP4330097B2 (en)

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