JPS6125491A - N-carbamoyl-d-naphthylglycine and its preparation - Google Patents

N-carbamoyl-d-naphthylglycine and its preparation

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Publication number
JPS6125491A
JPS6125491A JP14551084A JP14551084A JPS6125491A JP S6125491 A JPS6125491 A JP S6125491A JP 14551084 A JP14551084 A JP 14551084A JP 14551084 A JP14551084 A JP 14551084A JP S6125491 A JPS6125491 A JP S6125491A
Authority
JP
Japan
Prior art keywords
carbamoyl
naphthylglycine
naphthyl
naphthylhydantoin
formula
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
JP14551084A
Other languages
Japanese (ja)
Other versions
JPH0542427B2 (en
Inventor
Satomi Takahashi
高橋 里美
Kazuhiko Yamada
和彦 山田
Yasuyoshi Ueda
恭義 上田
Yoshio Shimada
嶋田 善夫
Kiyoshi Watanabe
清 渡辺
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP14551084A priority Critical patent/JPS6125491A/en
Publication of JPS6125491A publication Critical patent/JPS6125491A/en
Publication of JPH0542427B2 publication Critical patent/JPH0542427B2/ja
Granted legal-status Critical Current

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  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE:To produce the titled compound which is a precursor of D-naphthylyglycine useful as a synthetic intermediate, by biochemically hydrolyzing 5-naphthylhydantoin utilizing the intracellular enzyme of a specific microorganism. CONSTITUTION:A microbial strain capable of hydrolyzing the hydantoin ring of 5-naphthylhydantoin (the compound of formula I ) to produce N-carbamoyl-D- naphthylglycine (the compound of formula II) (e.g. Aerobacter cloacae) is used in the present process. The cultured product, cells or treated cells of the above microorganism are added to an aqueous dispersion of 5-naphthyl-hydantoin, and subjected to the enzymatic reaction at about 7-10pH and about 20-70 deg.C under stirring to obtain the objective N-carbamoyl-D-naphthyglycine. The 5-naphthylhydantoin used as a raw material may be D-, L- or DL-isomer.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、半合成β−ラクタム抗生物質などの医薬の合
成中間体として有用なり一ナフチルグリシンの前駆物質
となる新規化合物N−カルバモイル−D−ナフチルグリ
ジンに関する。さらに詳しくは本発明は、(1)一般式
(1) %式% 〔式中、α炭素はR配置を示す〕 で表わされるN−カルバモイル−D−ナフチルグリシン
Detailed Description of the Invention (Field of Industrial Application) The present invention is directed to a novel compound N-carbamoyl-D which is useful as a synthetic intermediate for pharmaceuticals such as semi-synthetic β-lactam antibiotics and is a precursor of naphthylglycine. - Concerning naphthylglydine. More specifically, the present invention relates to (1) N-carbamoyl-D-naphthylglycine represented by the general formula (1) %Formula% [In the formula, the α carbon shows the R configuration].

NHOONH2 で表わされるN−カルバモイル−D−(1−ナフNHO
ONH2 れるN−カルバモイル−D−(2−ナフチル)クリシン
が該当する。及び、(2)一般式で表わされる5−ナフ
チルヒダントインを、微生物の菌体内酵素を利用して生
化学的に加水分解することによりN−カルバモイル−D
−ナフチルグリジンを製造する方法に関する。
N-carbamoyl-D-(1-naphNHO
A case in point is N-carbamoyl-D-(2-naphthyl)chrysine, which is represented by ONH2. and (2) N-carbamoyl-D by biochemically hydrolyzing 5-naphthylhydantoin represented by the general formula using intracellular enzymes of microorganisms.
- A method for producing naphthylglycine.

(発明が解決しようとする問題点) 本発明者らは、先に6−フェニルヒダントインまたは5
−(置換フェニル)ヒダントイン類に微生物酵素を作用
させてN−カルバモイル−D−フェニルグリシンまたは
その置換誘導体を製造する方法を特願昭51−1157
5号、特願昭51−145748号および特願昭52−
48717号として出願し、天然アミノ酸類またはそれ
らの置換誘導体に対応する5−置換ヒダントイン類から
同様にしてN−カルバモイル−D−α−アミノ酸類を製
造する方法を特願昭51−157718号として出願し
た。また5−チェニルヒダントインに、11物酵素を作
用させてN−カルバモイル−D−チェニルグリシンを製
造する方法を特願昭58−80062号として出願した
。本発明は前記技術の発展の一つとして5−ナフチルヒ
ダントインへの適用を確認したものである。
(Problems to be Solved by the Invention) The present inventors have previously discovered 6-phenylhydantoin or 5-phenylhydantoin.
- Patent application No. 1157/1989 for a method for producing N-carbamoyl-D-phenylglycine or its substituted derivatives by reacting microbial enzymes with (substituted phenyl)hydantoins.
No. 5, Japanese Patent Application No. 145748/1983 and Japanese Patent Application No. 1987-
No. 48717, and a similar method for producing N-carbamoyl-D-α-amino acids from 5-substituted hydantoins corresponding to natural amino acids or their substituted derivatives was filed as Japanese Patent Application No. 157718-1983. did. In addition, he filed a patent application No. 80062/1983 for a method for producing N-carbamoyl-D-chenylglycine by reacting 5-chenylhydantoin with an 11-enzyme. The present invention confirms its application to 5-naphthylhydantoin as one of the developments of the above technology.

本発明の目的化合物N−カルバモイル−D−ナフチルグ
リシンは、医薬などの合成中間体とじて有用なり一ナフ
チルグリシン合成の前駆物質であり、文献未記載の新規
な化合物である。
The target compound of the present invention, N-carbamoyl-D-naphthylglycine, is useful as a synthetic intermediate for pharmaceuticals and the like, and is a precursor for the synthesis of naphthylglycine, and is a novel compound that has not been described in any literature.

(問題点を解決するための手段及び作用効果)本発明の
要点は次式で表わされる。
(Means and effects for solving the problems) The gist of the present invention is expressed by the following formula.

(DL、DまたはL体)        (D体〕上記
のように、本発明は5−ナフチルヒダントインに、ヒダ
ントイン環を立体特異的に加水分解してN−カルバモイ
ル−D−ナフチルグリシンを生成させる能力を有する微
生物の培養物、菌体または菌体処理物をpH7〜10の
水性媒体中で作用させることを特徴とする新規化合物N
−カルバモイル−D−ナフチルグリシン及びその製造法
に関するものである。
(DL, D or L form) (D form) As described above, the present invention provides 5-naphthylhydantoin with the ability to stereospecifically hydrolyze the hydantoin ring to produce N-carbamoyl-D-naphthylglycine. A novel compound N characterized in that a culture, bacterial cells, or treated bacterial cells of a microorganism having the following properties are allowed to act in an aqueous medium with a pH of 7 to 10.
-Carbamoyl-D-naphthylglycine and its production method.

この場合、基質の5−ナフチルヒダントインが5−(1
−ナフチル)ヒダントイン、5−(2−ナフチル)ヒダ
ントインのいずれの場合にでも本発明を適用することが
でき、それぞれN−カルバモイル−D−(1−ナフチル
)グリシン、N−カルバモイル−D−(2−ナフチル)
クリシンを生成する。
In this case, the substrate 5-naphthylhydantoin is 5-(1
The present invention can be applied to both N-carbamoyl-D-(1-naphthyl)hydantoin and 5-(2-naphthyl)hydantoin, and N-carbamoyl-D-(1-naphthyl)glycine and N-carbamoyl-D-(2-naphthyl)hydantoin, respectively. −naphthyl)
Produces chrysin.

本発明の方法を利用することにより、安価な微生物酵素
源を用いてDL−5−ナフチルヒダントインノ全員をほ
ぼ定量的にD体のN−カルバモイル−D−ナフチルグリ
シンに変換させることも可能である。N−カルバモイル
−D−ナフチルグリ2、 シンは、例えば亜硝酸との反応によって高収率でD−ナ
フチルグリシンに変換されるので、本発明はD−ナフチ
ルグリシンの工業的製法として極めて有利な手段を提供
するものである。以下に本発明の詳細な説明する。
By utilizing the method of the present invention, it is also possible to almost quantitatively convert all DL-5-naphthylhydantoin into D-form N-carbamoyl-D-naphthylglycine using an inexpensive microbial enzyme source. . Since N-carbamoyl-D-naphthylglycine 2,sine can be converted into D-naphthylglycine in high yield by reaction with nitrous acid, the present invention provides an extremely advantageous means for industrially producing D-naphthylglycine. This is what we provide. The present invention will be explained in detail below.

本発明で原料として用いられる5−ナフチルヒダントイ
ンは、通常は、化学合成で得られるDL体を使用するの
が適当である。DL−5−ナフチルヒダントインは、公
知のヒダントイン合成法倒名Buoherer−Ber
g法)を利用して、例えば1、または2−ナフトアルデ
ヒドに青酸ソーダと重炭酸アンモニウムを反応させるこ
とによってそれぞれ、5−(1−ナフチル)ヒダントイ
ンまたは5−(2−ナフチル゛)ヒダントインを合成す
ることができる。
As for 5-naphthylhydantoin used as a raw material in the present invention, it is usually appropriate to use the DL form obtained by chemical synthesis. DL-5-naphthylhydantoin can be synthesized using a known hydantoin synthesis method (Buoherer-Ber).
For example, 5-(1-naphthyl)hydantoin or 5-(2-naphthyl)hydantoin is synthesized by reacting 1- or 2-naphthaldehyde with sodium cyanide and ammonium bicarbonate, respectively, using method g). can do.

本発明で使用される微生物は、5−ナフチルヒダントイ
ンのヒダントイン環を立体特異的に加水分解してN−カ
ルバモイル−D−ナフチルグリシンを生成させる能力を
有するもので、自然界に存在する野生株、公的な微生物
保存機関に保存されている菌株、あるいはそれらから人
工的に変異誘導した微生物などから、前記能力の有無を
調べることによって選択されるものである。
The microorganism used in the present invention has the ability to stereospecifically hydrolyze the hydantoin ring of 5-naphthylhydantoin to produce N-carbamoyl-D-naphthylglycine. The microorganisms are selected by examining the presence or absence of the above-mentioned ability from microorganisms preserved in microorganism preservation institutions, or from microorganisms artificially mutated therefrom.

この能力の検定方法としては、例えば次のような方法が
用いられる。先づ微生物の培養物2wlを遠心分離して
菌体を集め、それを2ztの0.9%食塩水で洗浄後再
び遠心分離して菌体を集菌する。
For example, the following method is used to test this ability. First, 2 wl of microbial culture is centrifuged to collect bacterial cells, which are washed with 2zt of 0.9% saline and then centrifuged again to collect bacterial cells.

この分離した菌体(湿重量40〜2001q)を濃度0
.5%のDL−5−(2−ナフチル)ヒダントイン懸濁
液2xtに加えてpH7〜10、温度80〜40℃に保
って10〜40vj間反応させる。反応後、適宜希釈し
p−ジメチルシミノベンズアルデヒドの濃塩酸溶液を加
えて発色させ、その液を遠心分離して菌体等の不溶物を
除き、次いで上澄液の吸光度を480nmで測定して反
応液中のN−カルバモイル−(2−ナフチル)グリシン
生成量を求める。
This isolated bacterial body (wet weight 40-2001q) was reduced to a concentration of 0.
.. Add to 2xt 5% DL-5-(2-naphthyl)hydantoin suspension, maintain pH 7-10, temperature 80-40°C, and react for 10-40vj. After the reaction, dilute it appropriately and add a concentrated hydrochloric acid solution of p-dimethylciminobenzaldehyde to develop a color, centrifuge the solution to remove insoluble matter such as bacterial cells, and then measure the absorbance of the supernatant at 480 nm. The amount of N-carbamoyl-(2-naphthyl)glycine produced in the reaction solution is determined.

このようにして比較的高い変換率を示した菌株について
は、実験規模を大キくシて再度5−(2−ナフチル)ヒ
ダントインの加水分解反応を行ない、生成したN−カル
バモイル−(2−ナフチル)グリシンを単離して、それ
がD体であると認められた菌株を本発明に使用する微生
物として採用する。このようにして得られた微生物は5
−(1−ナフチル)ヒダントインに対しても同様に作用
しN−カルバモイル−(1−ナフチル)グリシンを生成
する。
For the strains that showed a relatively high conversion rate in this way, we conducted the hydrolysis reaction of 5-(2-naphthyl)hydantoin again on a larger scale, and the resulting N-carbamoyl-(2-naphthyl) ) A bacterial strain in which glycine is isolated and is found to be in the D form is employed as a microorganism for use in the present invention. The microorganisms obtained in this way were 5
It acts similarly on -(1-naphthyl)hydantoin to produce N-carbamoyl-(1-naphthyl)glycine.

本発明で使用する微生物は、#II菌、放線菌、かび、
酵母および不完全菌の中から上記の検定に合格するもの
が選ばれるが、本発明者らの研究によれば分類学的にみ
ても極めて広範囲の種馬の中に見出すことができる。そ
れら菌株の具体的な例示は、既に特開昭51−1157
5号、特願昭51−145748号、特願昭51−15
7718号、特願昭52−48717号および特願昭5
8−80062号の明細書中に記載されているが、5−
ナフチルヒダントインに対して特に高活性を示す微生物
で細菌に属するものとしては、アエロバクタ−属、アグ
ロバクテリウム精、バチルス属、プレビバクテリウム属
、コリネバクテリウム属、ミクロバクテリウム属、シュ
ードモナス属など;放線菌に属するものとしては、アク
チノミセス属、ミコバクテリウム属、ノカルディア属、
ストレプトミセス属などの中に見出されている。
The microorganisms used in the present invention include #II bacteria, actinomycetes, molds,
Those that pass the above test are selected from among yeast and Deuteromycota, but according to the research of the present inventors, they can be found in an extremely wide range of stallions from a taxonomic perspective. Specific examples of these strains have already been published in JP-A-51-1157.
No. 5, Patent Application No. 145748/1984, Patent Application No. 1973/1984
No. 7718, Japanese Patent Application No. 52-48717 and Japanese Patent Application No. 1977
Although it is described in the specification of No. 8-80062, 5-
Microorganisms that exhibit particularly high activity against naphthylhydantoin and belong to bacteria include Aerobacter genus, Agrobacterium genus, Bacillus genus, Previbacterium genus, Corynebacterium genus, Microbacterium genus, Pseudomonas genus, etc.; Actinomycetes include the genus Actinomyces, the genus Mycobacterium, the genus Nocardia,
It is found in the genus Streptomyces.

本発明の方法は、微生物の菌体またはその処理物の形態
で菌体内酵素の作用を利用するものであるが、この酵素
は天然栄養源を含有する通常の培地で微生物を培養する
ことによって菌体内Cζ生成蓄積させることができる。
The method of the present invention utilizes the action of intracellular enzymes in the form of microbial cells or their processed products, and this enzyme is produced by culturing microorganisms in a normal medium containing natural nutrients. It is possible to generate and accumulate Cζ in the body.

培養は通常液体培地で行なわれるが、固体表面培養によ
っても行なうことができる。培地には通常、資化し得る
炭素源、窒素源および各微生物の生育に必要な無機塩な
らびに栄養素とを含有させるが、更に各種のピリミジン
系核酸塩基類またはそれらの誘導体、或いは各種のヒダ
ントイン類を0.05〜0.8%添加して所望の酵素を
適応的に増強させることが望ましい。
Cultivation is usually carried out in a liquid medium, but it can also be carried out by solid surface culture. The culture medium usually contains assimilable carbon sources, nitrogen sources, inorganic salts and nutrients necessary for the growth of each microorganism, but it also contains various pyrimidine nucleobases or derivatives thereof, or various hydantoins. It is desirable to add 0.05 to 0.8% to adaptively enhance the desired enzyme.

酵素誘導効果の高いピリミジン系核酸塩基類としては、
ウラシル、シトシンおよびチミンがあり、それらの誘導
体としてはジヒドロウラシル、ジヒドロチミンなどがあ
る。またヒダントイン類の中ではヒダントイン、DL−
5−メチルヒダントインなどが比較的好ましい。しかし
多くの微生物に共通して、実用的に最も好ましい酵素−
,導基質はウラシルである。培養条件は、使用する微生
物の至適生育条件に応じて温度20〜65℃、pH4〜
11の範囲が用いられる。培養中には通気攪拌を行なっ
て微生物の生育を促進させることもできる。
Pyrimidine-based nucleobases with high enzyme-inducing effects include:
There are uracil, cytosine and thymine, and their derivatives include dihydrouracil and dihydrothymine. Also, among the hydantoins, hydantoin, DL-
5-methylhydantoin and the like are relatively preferred. However, common to many microorganisms, the most practically preferred enzyme is
, the guiding substrate is uracil. The culture conditions are temperature 20-65℃, pH 4-4 depending on the optimal growth conditions of the microorganism used.
A range of 11 is used. During cultivation, aeration and stirring may be performed to promote the growth of microorganisms.

5−ナフチルヒダントインの加水分解反応には、前記の
ようにして培養した微生物を培養物、菌体または菌体処
理物の形態で使用する。通常微生物の培養液をそのまま
反応に使用することができるが、培養液中の成分が障害
になる場合や酵素量を多く用いたい場合には、培養液か
ら分離した菌体を使用すればよい。菌体は生菌体のまま
で使用目的を達するが、貯蔵あるいは取扱いの便宜から
凍結乾燥菌体として用いることもできる。また菌体その
ものでなく、菌体破砕物や菌体抽出物のような菌体処理
物の状態で使用することも可能である。
For the hydrolysis reaction of 5-naphthylhydantoin, the microorganisms cultured as described above are used in the form of a culture, bacterial cells, or treated bacterial cells. Normally, the culture solution of microorganisms can be used as is for the reaction, but if components in the culture solution are a hindrance or if a large amount of enzyme is desired to be used, microbial cells isolated from the culture solution may be used. Although the purpose of use of the bacterial cells is achieved as they are, they can also be used as freeze-dried cells for convenience in storage and handling. In addition, it is also possible to use the microbial cells in the form of processed microbial products such as crushed microbial cells and microbial cell extracts, instead of the microbial cells themselves.

更に上記の菌体または菌体処理物を公知の方法で固定化
したものも使用することができる。
Furthermore, it is also possible to use the above-mentioned bacterial cells or treated bacterial cells immobilized by a known method.

5−ナフチルヒダントインに微生物の培養物、菌体また
は菌体処理物を作用させるには、通常水性媒体中で両者
を混合する方法が用いられる。6−ナフチルヒダントイ
ンの反応液中での濃度については特に制限はないが、1
〜80%細度の高濃度では基質は完全には溶解しない。
In order to cause a microbial culture, bacterial cells, or treated bacterial cells to act on 5-naphthylhydantoin, a method of mixing the two in an aqueous medium is usually used. There is no particular restriction on the concentration of 6-naphthylhydantoin in the reaction solution, but 1
At high concentrations of ~80% fineness, the substrate is not completely dissolved.

しかし反応の進行に伴って6−ナフチルヒダントインが
逐次溶解していくので何ら支障にはならない。
However, as the reaction progresses, 6-naphthylhydantoin gradually dissolves, so this does not pose any problem.

本発明において用いられる微生物酵素の真の基質はD体
であり、D体の6−ナフチルヒダントインのみが選択的
に加水分解されて、カルバモイル体に変換される。一般
に、5−置換ヒダントインは、容易にラセミ化しやすい
性質を有することが知られているが、本酵素反応条件の
ような穏和な条件においても、基質である6−ナフチル
ヒダントインは、実際、酵素反応中宮にラセミ化状態に
あり、酵素反応の進行に伴ってD体が消費されても、加
水分解されないL体の迅速なラセミ化により反応系には
常にD体が補給される。このようにラーIFE化反応が
酵素反応と併行して進むということから、L体も間接的
な基質とみなすことができる。従って原料の6−ナフチ
ルヒダントインは、DL体、D体、L体のいずれであっ
ても、実際的な効果には殆んど差がないことになる。一
方、生成物であるN−カルバモイル−D−ナフチルグリ
シンは全くラセミ化されることはない。これらの結果と
して、酵素反応の基質として、D’L体、D体またはL
体のいずれを用いても生成物としては、常にD体のN−
カルバモイル−ナフチルグリシンを、対掌体基質を残す
ことなく、はぼ定量的な収率で得ることも可能である。
The true substrate of the microbial enzyme used in the present invention is the D-form, and only the D-form 6-naphthylhydantoin is selectively hydrolyzed and converted to the carbamoyl form. Generally, 5-substituted hydantoin is known to have the property of being easily racemized, but even under mild conditions such as the present enzyme reaction conditions, the substrate 6-naphthylhydantoin actually Even if the D isomer is in a racemized state in the middle court and is consumed as the enzymatic reaction progresses, the D isomer is constantly replenished into the reaction system due to the rapid racemization of the L isomer that is not hydrolyzed. Since the L-IFE reaction proceeds in parallel with the enzymatic reaction, the L-form can also be regarded as an indirect substrate. Therefore, there is almost no difference in practical effects whether the raw material 6-naphthylhydantoin is in the DL, D, or L form. On the other hand, the product N-carbamoyl-D-naphthylglycine is not racemized at all. As a result, D'L form, D form or L form can be used as substrates for enzymatic reactions.
No matter which type of body is used, the product is always D-type N-
It is also possible to obtain carbamoyl-naphthylglycine in almost quantitative yield without leaving any enantiomeric substrate.

水性媒体中で5−ナフチルヒダントインの立体特異的加
水分解反応を行なう際に、実用上好ましいpHの範囲は
7〜10であり、特に好ましいのは8〜9である。活性
の高い微生物を使用して、このような条件で反応を行な
えば非常に高収率で目的物を得る仁とができる。。pH
7未満では反応速度は極めて小さく、pH10を超える
と好ましくない副反応を生じるので、いずれも実用性に
は乏しい。pH7〜lOが好ましい理由としては、本発
明で利用される微生物酵素の至適pHが8〜9付近にあ
ること、pHが増すにつれて基質の溶解度が増すこと、
ならびにヒダントイン環のラセミ化反応がアルカリ性に
おいて効果的に促進されることなどによって結果的に5
−ナフチルヒダントインからN−カルバモイル−D−ナ
フチルグリシンへの変換速度が増大することにある。反
応の進行に伴って媒体のpHが低下するので、反応中、
継続的に中和剤を添加して至適pHに保持することが望
ましい。中和剤としては、アンモニア、苛性ソーダ、苛
性カリ、炭酸ソーダなどが適当である。その他、目的に
応じて水性媒体に有機溶媒や界面活性剤を添加して反応
を行なわせることもできる。反応温度は、使用する微生
物の酵素に適した温度が採用されるが、通常20〜70
℃の範囲内にある。
When carrying out the stereospecific hydrolysis reaction of 5-naphthylhydantoin in an aqueous medium, a practically preferred pH range is 7-10, particularly preferably 8-9. If a highly active microorganism is used and the reaction is carried out under such conditions, the desired product can be obtained in a very high yield. . pH
If the pH is less than 7, the reaction rate is extremely low, and if the pH exceeds 10, undesirable side reactions occur, so both are poor in practical use. The reason why pH 7 to 1O is preferable is that the optimum pH of the microbial enzyme used in the present invention is around 8 to 9, and that the solubility of the substrate increases as the pH increases.
In addition, the racemization reaction of the hydantoin ring is effectively promoted in alkaline conditions, resulting in 5
- The conversion rate of naphthylhydantoin to N-carbamoyl-D-naphthylglycine is increased. During the reaction, the pH of the medium decreases as the reaction progresses.
It is desirable to continuously add a neutralizing agent to maintain the optimum pH. Suitable neutralizing agents include ammonia, caustic soda, caustic potash, and soda carbonate. In addition, depending on the purpose, an organic solvent or a surfactant may be added to the aqueous medium to carry out the reaction. The reaction temperature is a temperature suitable for the enzyme of the microorganism used, but it is usually 20-70°C.
within the range of ℃.

加水分解によって生成したN−カルバモイル−D−ナフ
チルグリシンは、沈殿法あるいは陰イオン交換樹脂を利
用するなど、通常の方法により単離することができるが
、単離をしないでそのまま鉱酸酸性下、亜硝酸と反応さ
せることにより容易にD−ナフチルグリシンに変換され
る。
N-carbamoyl-D-naphthylglycine produced by hydrolysis can be isolated by conventional methods such as precipitation or using an anion exchange resin, but it can be isolated without isolation under mineral acid. It is easily converted to D-naphthylglycine by reacting with nitrous acid.

D−ナフチルグリシンは半合成β−ラクタム抗生物質等
、医薬の製造中間体として重要な化合物であるが、本発
明による新規な方法により得られる新規な化合物N−カ
ルバモイル−D−ナフチルグリシンを用いることにより
、その製造を工業的に有利に°行なうことができるので
ある。
D-naphthylglycine is an important compound as an intermediate in the production of pharmaceuticals such as semi-synthetic β-lactam antibiotics, but the novel compound N-carbamoyl-D-naphthylglycine obtained by the novel method of the present invention can be used. This makes it possible to manufacture it industrially advantageously.

(実施例) 以下実施例によって本発明を具体的に説明するが、本発
明はこれらの例のみに限定されるものではない。
(Examples) The present invention will be specifically described below with reference to Examples, but the present invention is not limited to these Examples.

実施例1 下記組成からなる栄養液体培地を調製し、綿栓をした大
型試験管に10゛胃lずつ分注して120℃で16分間
蒸気殺菌を行なった。
Example 1 A nutrient liquid medium having the following composition was prepared and dispensed into large test tubes with cotton plugs in 10 ml portions and steam sterilized at 120° C. for 16 minutes.

培地組成: 肉エキス     0.6%(重量%)酵母エキス  
  0.6% ポリペプトン   1.0% Na1l       O,15% ウラシル     0.1% p H,7,,0 ・予め、ブイヨン寒天スラントで80°C124時間培
養した表−1に示す微生物を上記栄養液体培地に一白金
耳接種して88°Cで24時間振とう下に培養を行なっ
た。これらの培養液の4mlを用い、遠心分離して得た
生菌体を更に同量の0.9%食塩水で洗浄したのち、再
び遠心分離して集菌し、下記の反応液成分として使用し
た。
Medium composition: Meat extract 0.6% (wt%) Yeast extract
0.6% Polypeptone 1.0% Na1l O, 15% Uracil 0.1% pH, 7,0 ・The microorganisms shown in Table 1, which had been previously cultured in a bouillon agar slant at 80°C for 124 hours, were placed in the above nutrient liquid medium. One platinum loopful was inoculated into the cells and cultured at 88°C for 24 hours with shaking. Using 4 ml of these culture solutions, centrifuge the viable cells, wash them with the same amount of 0.9% saline, centrifuge again to collect the bacteria, and use as the reaction solution component below. did.

反応液組成: (1)  D L −5−(2−ナフチル)ヒダントイ
ンを0.05M  NaHOOa−Na200g緩衝液
に加え、pH8,7に調製した濃度8.85mM (0
,2%(W/V))の基質懸濁液・・・・・・・・・4
.0 ml。
Reaction solution composition: (1) D L -5-(2-naphthyl)hydantoin was added to 200 g of 0.05 M NaHOOa-Na buffer solution, and the concentration was adjusted to pH 8.7.
, 2% (W/V)) substrate suspension...4
.. 0 ml.

(2)前記、40耐培養液より遠心分離、洗浄した生菌
体。
(2) Live bacterial cells centrifuged and washed from the 40-resistant culture solution.

上記(1)と(2)を混合し、よく菌体を懸濁した反応
液を夫々共栓付小型試験管に入れ、緩く振とうしなから
87°Cで48時間反応させた。尚、対照と5倍に希釈
した後、希釈液4. Opalに対し20%トリクロル
酢酸2.Ozl、 10%p−ジメチルアミノベンズア
ルデヒドの12N塩酸溶液1.0 mlを加えて混合し
た。この黄色に発色した液を遠心分離して不溶物を除き
480nmの吸光度を測定してN−カルバモイル−(2
−ナフチル)グリシンを比色定量した。その結果、反応
液中に生成したN−カルバモイル−(2−ナフチル)グ
リシンの量とDL−5−(2−ナフチル)ヒダントイン
からの変換率は、各微生物について夫々表−1に示す通
表−1 *培養、反応共に60℃にて実施 実施例2 下記の組成からなる液体栄養培地を調製し、綿栓付大型
試験管に1Oyglずつ分注して120°Cで20分間
蒸気殺菌を行なった。
The above (1) and (2) were mixed, and the reaction solution in which the bacterial cells were well suspended was placed in a small test tube with a stopper and allowed to react at 87°C for 48 hours while shaking gently. In addition, after diluting 5 times with the control, diluted solution 4. 20% trichloroacetic acid for Opal2. Ozl and 1.0 ml of a 12N hydrochloric acid solution of 10% p-dimethylaminobenzaldehyde were added and mixed. This yellow colored liquid was centrifuged to remove insoluble materials, and the absorbance at 480 nm was measured.
-naphthyl)glycine was determined colorimetrically. As a result, the amount of N-carbamoyl-(2-naphthyl)glycine produced in the reaction solution and the conversion rate from DL-5-(2-naphthyl)hydantoin were determined for each microorganism as shown in Table 1. 1 * Both culture and reaction were carried out at 60°C Example 2 A liquid nutrient medium having the following composition was prepared, and 1 Oygl was dispensed into large test tubes with cotton stoppers and steam sterilized at 120°C for 20 minutes. .

培地組成ニ ゲルコース       2.0%(重量%)ソイビー
ン・ミール   1.0% 酵母エキス       0.25% (NH4)2804      0.10%Ca0OB
          o、 5%に2HPO40,4% ヒダントイン pH7,0 予め、ベネット寒天スラントで28℃、72時間培養し
た表−2に示す微生物を上記栄養液体培地lζ接種して
28℃で44時間振とう下に培養を行なった。この培養
液40m1から菌体を遠心分離し、以下実施例Iと同様
の処理を行なって洗浄生菌体を得た。そして、この生菌
体を用いて実施例1と同様の反応液組成で、87℃で4
8時時間中かな振とり下に反応を行なった。反応後も実
施例1と同様に分析を行ない、反応液中に生成したN−
カルバモイル−(2−ナフチル)グリシン承を定量した
。その結果と、DL−5−(2−ナフチル)ヒダントイ
ンからの変換率は、各微生物について夫々表−2に示す
通りであった。
Medium composition Nigelcose 2.0% (wt%) Soy bean meal 1.0% Yeast extract 0.25% (NH4) 2804 0.10% CaOB
o, 5% 2HPO40.4% hydantoin pH 7.0 The microorganisms shown in Table 2, which had been previously cultured on a Bennett agar slant at 28°C for 72 hours, were inoculated into the above nutrient liquid medium lζ and incubated at 28°C for 44 hours with shaking. Culture was performed. The bacterial cells were centrifuged from 40 ml of this culture solution, and the same treatment as in Example I was performed to obtain washed viable bacterial cells. Then, using this viable cell, a reaction solution composition similar to that of Example 1 was used, and the reaction solution was incubated at 87°C.
The reaction was carried out under shaking for 8 o'clock. After the reaction, analysis was performed in the same manner as in Example 1, and the N- generated in the reaction solution was analyzed.
Carbamoyl-(2-naphthyl)glycine was quantified. The results and the conversion rate from DL-5-(2-naphthyl)hydantoin were as shown in Table 2 for each microorganism.

表−2 実施例8 下記組成からなる栄養液体培地を調製し2000m1容
肩付振とうフラスコに250g+/ずつ分注し、120
°Cで20分間蒸気殺菌を行なった。
Table 2 Example 8 A nutrient liquid medium having the following composition was prepared and dispensed into 2000 ml shoulder shaker flasks at 250 g/min.
Steam sterilization was performed at °C for 20 minutes.

培地組成: 肉エキス     0.6%(重量%)ボッペプトン 
  1.0% 酵母エキス    0.5% Na(M       O,8% ウラシル     001% MnO12・4 H2O20ppm pH7,0 これに同一組成寒天培地で88°Cにて24時間培養し
た表−8に示す微生物を上記栄養液体培地に接種して8
8℃にて24時間振とう下に培養を行なった。この培養
液から菌体を遠心分離し、以下実施例1と同様に処理を
行なって洗浄生菌体を得た。この生菌体をDL−5−(
2−ナフチル)ヒダントイン1f/dlを含む0.05
 M  NaHOOl−Na200B緩衝液(pH8,
7) 50xlに全量添加し、88℃に20時時間中か
な振とう下に保持、反応させた。反応後、反応液を遠心
分離し、そのJJを得て、生成したN−カルバモイル−
(2−ナフチル)グリシン量を高速液体クロマトグラフ
ィーにより分離定量した(カラム;日本分光Finep
ak 8IL 01B、 4.6 X 250g11.
86 mMKH2PO4を含む0.02M−H8PO4
(pH2,5):MeOH=’l:8、検出210 f
gWI )。
Medium composition: Meat extract 0.6% (wt%) boppeptone
1.0% yeast extract 0.5% Na (MO, 8% uracil 001% MnO 12.4 H2O 20 ppm pH 7,0) To this were added the microorganisms shown in Table 8 that were cultured on an agar medium with the same composition at 88°C for 24 hours. Inoculate the above nutrient liquid medium and
Culture was performed at 8°C for 24 hours with shaking. The bacterial cells were centrifuged from this culture solution and treated in the same manner as in Example 1 to obtain washed viable bacterial cells. This viable bacterial cell was DL-5-(
0.05 containing 1f/dl of 2-naphthyl)hydantoin
M NaHOOl-Na200B buffer (pH 8,
7) The entire amount was added to 50xl and kept at 88°C for 20 hours with constant shaking for reaction. After the reaction, the reaction solution was centrifuged to obtain the JJ, and the generated N-carbamoyl-
The amount of (2-naphthyl)glycine was separated and quantified by high performance liquid chromatography (column: JASCO Finep
ak 8IL 01B, 4.6 X 250g11.
0.02M-H8PO4 containing 86 mM KH2PO4
(pH2,5):MeOH='l:8, detection 210 f
gWI).

更に、この上清のpHを濃塩酸で1.6〜2に調製する
とN−カルバモイル2(2−ナフチル)グリシンが沈殿
して析出した。仁の沈殿を炉底し、更にエタノールで再
結晶して得られたN−カルバモイル−(2−ナフチル)
グリシンの比旋光度を測定した。以上の結果を各使用微
生物ごとに表−8に示す。比旋光度の測定結果からN−
カルバモイル−(2−ナフチル)グリシンはすべてD体
であることが確認された。
Furthermore, when the pH of this supernatant was adjusted to 1.6 to 2 with concentrated hydrochloric acid, N-carbamoyl 2(2-naphthyl)glycine was precipitated. N-carbamoyl-(2-naphthyl) obtained by boiling the precipitate of keratin and recrystallizing it from ethanol.
The specific rotation of glycine was measured. The above results are shown in Table 8 for each microorganism used. From the measurement results of specific optical rotation, N-
It was confirmed that all carbamoyl-(2-naphthyl)glycines were in the D form.

表−8 **培養、反応共に60°Cにて実施 実施例4 実施例8と同様の組成からなる栄養液体培地を調製し、
500g1容肩付振とうフラスコに100m1ずつ分注
し120°Cにて20分間蒸気殺菌を行なった。これに
綿栓をした大型試験管にて、同一組成培地10ゴで88
℃で24時間培養したバシルス・スピーシーズ(Bac
illus 5pecies ) K N K108 
(FIIRM P−6056)を2.0 m振温し、8
8°Cで24時間振とう培養を行なった。この培養液1
00耐を200胃/容四ツロ丸底フラスコに入れ、窒素
通気下、攪拌しながらDL−5−(2−ナフチル)ヒダ
ントイン1.Ofを加え、87℃で20時間反応させた
。反応中1. ON −NaOH溶液を用いて反応系の
pHを8.7に継続的に調節した。反応後、液のpHを
7.0に調整して遠心分離を行ない、未反応基質や菌体
等の不溶物を除去した。こうして得られた上澄液の一部
をとり実施例8と同様に高速液体クロマトグラフィーで
分析した結果、生成N−カルバモイル−D−(2−ナフ
チル)グリシン量は0.95fであり、変換率は88.
0モル%であった。
Table 8 **Culture and reaction both carried out at 60°C Example 4 A nutrient liquid medium having the same composition as in Example 8 was prepared.
The mixture was dispensed in 100 ml portions into 500 g 1-capacity shoulder shake flasks and steam sterilized at 120°C for 20 minutes. In a large test tube with a cotton stopper, 10 g of the same composition medium was added to 88 g.
Bacillus sp.
illus 5pecies) KN K108
(FIIRM P-6056) was shaken for 2.0 m, and
Shaking culture was performed at 8°C for 24 hours. This culture solution 1
00 resistance was placed in a 200 stomach/capacity four-bottle round bottom flask, and DL-5-(2-naphthyl)hydantoin 1. Of was added, and the mixture was reacted at 87°C for 20 hours. During the reaction 1. The pH of the reaction system was continuously adjusted to 8.7 using ON-NaOH solution. After the reaction, the pH of the solution was adjusted to 7.0 and centrifugation was performed to remove insoluble matter such as unreacted substrates and bacterial cells. A portion of the supernatant thus obtained was analyzed by high performance liquid chromatography in the same manner as in Example 8. As a result, the amount of N-carbamoyl-D-(2-naphthyl)glycine produced was 0.95f, and the conversion rate was is 88.
It was 0 mol%.

更に上澄液のpHを濃塩酸で1.6〜2に調整するとN
−カルバモイル−D−(2−ナフチル)グリシンが沈殿
をして析出した。この沈殿を炉底し、更にエタノールで
再結晶して無色針状結晶o、69fを得た。以上のよう
にして得たN−カルバモイル−D−(2−ナフチル)グ
リシンの比旋光度、融点、IRlNMRの結果を以下−
こ示す。
Furthermore, when the pH of the supernatant liquid was adjusted to 1.6 to 2 with concentrated hydrochloric acid, N
-Carbamoyl-D-(2-naphthyl)glycine was precipitated. This precipitate was drained to the bottom of the furnace and further recrystallized from ethanol to obtain colorless needle crystals o, 69f. The specific rotation, melting point, and IRlNMR results of N-carbamoyl-D-(2-naphthyl)glycine obtained as above are shown below.
This is shown.

(”): =−146,2(0=、1 、0.1N N
HNH40H)   205〜207℃ (deaom
p、 )IR(tN−’)i 8460,8800.1
905,1685゜1685.1560.1B10,1
280.1180゜1007.809,755.478
  (KBr)NMRDyasO−d6 (699m)
 ; 5.20 (IH,a、 OH)。
(''): =-146,2(0=,1,0.1N N
HNH40H) 205-207℃ (deaom
p, )IR(tN-')i 8460,8800.1
905,1685°1685.1560.1B10,1
280.1180°1007.809,755.478
(KBr)NMRDyasO-d6 (699m)
; 5.20 (IH, a, OH).

5.66(2H,8,NH2)、6.88(IH,a。5.66 (2H, 8, NH2), 6.88 (IH, a.

NH)、7.4〜7.9(7H,m、ナフタレン環)実
施例5 実施例4と同様に培養したバシルス・スピーシーズIN
K−108(FBRM  P−6056)  の培養液
100g/を200w1容四ツ目丸底フラスコに入れ窒
素通気下、攪拌しなからDL−5−(1−ナフチル)ヒ
ダントインi、ofIを加え、37°C20時間反応さ
せた。反応中1. ON−NaOH溶液を用いて反応系
のpHを8.7に継続的に調節した。
NH), 7.4 to 7.9 (7H, m, naphthalene ring) Example 5 Bacillus sp. IN cultured in the same manner as in Example 4
K-108 (FBRM P-6056) culture solution (100g) was placed in a 200w 1 volume four-eye round bottom flask, stirred under nitrogen aeration, and then DL-5-(1-naphthyl)hydantoin I, ofI was added. The reaction was carried out at °C for 20 hours. During the reaction 1. The pH of the reaction system was continuously adjusted to 8.7 using ON-NaOH solution.

反応後、液のpHを7.0に調整して遠心分離を行ない
、未反応基質や菌体等の不溶物を除去した。
After the reaction, the pH of the solution was adjusted to 7.0 and centrifugation was performed to remove insoluble matter such as unreacted substrates and bacterial cells.

こうして得られた上澄液の一部をとり実施例8゜4と同
様に高速液体クロマトグラフィーで分析した結果、生成
N−カルバモイル−D−(1−t)チル)グリシン量は
0.8’lfであり、変換率は80.6モル%であった
A portion of the supernatant thus obtained was analyzed by high performance liquid chromatography in the same manner as in Example 8.4. As a result, the amount of N-carbamoyl-D-(1-t)thyl)glycine produced was 0.8' lf, and the conversion rate was 80.6 mol%.

更をこ上澄液のpHを濃塩酸で1.5〜2に調製すると
N−カルバモイル−D−(1−ナフチル)グリシンが沈
殿をして析出した。この沈殿を胛取し、更にエタノール
で再結して白色粉末結晶0.61Fを得た。
When the pH of the supernatant was further adjusted to 1.5-2 with concentrated hydrochloric acid, N-carbamoyl-D-(1-naphthyl)glycine was precipitated. This precipitate was collected and further recrystallized with ethanol to obtain white powder crystals of 0.61F.

以上のようにして得たN−カルバモイル−D−(1−ナ
フチル)グリシンの比旋光度、融点、エル、NMRの結
果を以下に示す。− 〔α〕甘せ−161.7  (0=1.0.1N NH
NH40H)  214〜217℃ lecomp、 
)IR(α−’)[460,8800,1920,16
80゜16B0,1560.1408.1810.12
79゜1180.1150.1008.800.775
(KBr)NMRDxso4g(δPpM) + 5.
67(2H,s、 NHg)。
The results of specific rotation, melting point, L, and NMR of N-carbamoyl-D-(1-naphthyl)glycine obtained as above are shown below. - [α] Amase -161.7 (0=1.0.1N NH
NH40H) 214-217℃ lecomp,
)IR(α-')[460,8800,1920,16
80°16B0,1560.1408.1810.12
79°1180.1150.1008.800.775
(KBr)NMRDxso4g(δPpM) +5.
67 (2H, s, NHg).

5.98(IH,cl、 OH)、 6.88(IH,
d、NH)。
5.98 (IH, cl, OH), 6.88 (IH,
d, NH).

Claims (10)

【特許請求の範囲】[Claims] (1)式( I ) ▲数式、化学式、表等があります▼( I ) で表わされるN−カルバモイル−D−ナフチルグリシン
(1) Formula (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼N-carbamoyl-D-naphthylglycine represented by (I).
(2)式( I )の化合物が、式▲数式、化学式、表等
があります▼で表 わされるN−カルバモイル−D−(1−ナフチル)グリ
シンである特許請求の範囲第1項記載の化合物。
(2) The compound according to claim 1, wherein the compound of formula (I) is N-carbamoyl-D-(1-naphthyl)glycine represented by the formula ▲, which includes mathematical formulas, chemical formulas, tables, etc.
(3)式( I )の化合物が、式▲数式、化学式、表等
があります▼で 表わされるN−カルバモイル−D−(2−ナフチル)グ
リシンである特許請求の範囲第1項記載の化合物。
(3) The compound according to claim 1, wherein the compound of formula (I) is N-carbamoyl-D-(2-naphthyl)glycine represented by the formula ▲ where there are mathematical formulas, chemical formulas, tables, etc. ▼.
(4)5−ナフチルヒダントインに、ヒダントイン環を
立体特異的に加水分解してN−カルバモイル−D−ナフ
チルグリシンを生成させる能力を有する微生物の培養物
、菌体または菌体処理物をpH7〜10の水性媒体中で
作用させることを特徴とするN−カルバモイル−D−ナ
フチルグリシンの製造法。
(4) To 5-naphthylhydantoin, add a culture, bacterial cells, or bacterial cell-treated product of a microorganism that has the ability to stereospecifically hydrolyze the hydantoin ring to produce N-carbamoyl-D-naphthylglycine at a pH of 7 to 10. 1. A method for producing N-carbamoyl-D-naphthylglycine, which is carried out in an aqueous medium.
(5)アエロバクター属、アグロバクテリウム属、バチ
ルス属、プレビバクテリウム属、コリネバクテリウム属
、ミクロバクテリウム属、シユードモナス属、アクチノ
ミセス属、ミコバクテリウム属、ノカルデイア属または
ストレプトミセス属に属する微生物を使用する特許請求
の範囲第4項記載の製造法。
(5) Belongs to the genus Aerobacter, Agrobacterium, Bacillus, Previbacterium, Corynebacterium, Microbacterium, Pseudomonas, Actinomyces, Mycobacterium, Nocardia, or Streptomyces The manufacturing method according to claim 4, which uses microorganisms.
(6)微生物の菌体として、生菌体または乾燥菌体を使
用する特許請求の範囲第4項または第5項記載の製造法
(6) The production method according to claim 4 or 5, wherein live or dried microbial cells are used as the microorganism cells.
(7)微生物の菌体処理物として、菌体破砕物または菌
体抽出物を使用する特許請求の範囲第4項または第5項
記載の製造法。
(7) The production method according to claim 4 or 5, wherein a microbial cell crush product or a microbial cell extract is used as the microbial cell-treated product.
(8)微生物の菌体または菌体処理物として、菌体また
は、菌体処理物の固定化物を用いる特許請求の範囲第4
項、第5項、第6項または第7項記載の製造法。
(8) Claim 4 uses an immobilized product of microbial cells or a processed product of microorganisms as the microorganism cells or processed product of microorganisms.
The manufacturing method according to item 5, item 6, or item 7.
(9)培地にピリミジン系核酸塩基類または、それらの
誘導体を添加して培養し、ヒダントイン環を立体特異的
に加水分解する能力を増強させた微生物を使用する特許
請求の範囲第4項、第5項、第6項、第7項または第8
項記載の製造法。
(9) Claims 4 and 4 which use a microorganism that has been cultured with the addition of pyrimidine nucleic acid bases or their derivatives to a medium to enhance the ability to stereospecifically hydrolyze hydantoin rings. Section 5, Section 6, Section 7 or Section 8
Manufacturing method described in section.
(10)5−ナフチルヒダントインがDL体である特許
請求の範囲第4項記載の製造法。
(10) The production method according to claim 4, wherein 5-naphthylhydantoin is a DL form.
JP14551084A 1984-07-12 1984-07-12 N-carbamoyl-d-naphthylglycine and its preparation Granted JPS6125491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14551084A JPS6125491A (en) 1984-07-12 1984-07-12 N-carbamoyl-d-naphthylglycine and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14551084A JPS6125491A (en) 1984-07-12 1984-07-12 N-carbamoyl-d-naphthylglycine and its preparation

Publications (2)

Publication Number Publication Date
JPS6125491A true JPS6125491A (en) 1986-02-04
JPH0542427B2 JPH0542427B2 (en) 1993-06-28

Family

ID=15386912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14551084A Granted JPS6125491A (en) 1984-07-12 1984-07-12 N-carbamoyl-d-naphthylglycine and its preparation

Country Status (1)

Country Link
JP (1) JPS6125491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009108663A (en) * 2007-11-01 2009-05-21 Nhk Spring Co Ltd Slide operation device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545195A (en) * 1978-09-28 1980-03-29 Olympus Optical Co Ltd Magnetic reproducing device
JPS561909A (en) * 1979-06-20 1981-01-10 Hitachi Cable Ltd Connecting method of optical fiber
JPS561910A (en) * 1979-06-21 1981-01-10 Tokyo Optical Co Ltd High resolving power lens
JPS5642914A (en) * 1979-09-18 1981-04-21 Tokyo Shibaura Electric Co Capacitor type molded insulating cylinder
JPS6129953A (en) * 1984-07-20 1986-02-12 Panafacom Ltd Trace controlling method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545195A (en) * 1978-09-28 1980-03-29 Olympus Optical Co Ltd Magnetic reproducing device
JPS561909A (en) * 1979-06-20 1981-01-10 Hitachi Cable Ltd Connecting method of optical fiber
JPS561910A (en) * 1979-06-21 1981-01-10 Tokyo Optical Co Ltd High resolving power lens
JPS5642914A (en) * 1979-09-18 1981-04-21 Tokyo Shibaura Electric Co Capacitor type molded insulating cylinder
JPS6129953A (en) * 1984-07-20 1986-02-12 Panafacom Ltd Trace controlling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009108663A (en) * 2007-11-01 2009-05-21 Nhk Spring Co Ltd Slide operation device

Also Published As

Publication number Publication date
JPH0542427B2 (en) 1993-06-28

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