JPS63174928A - Pharmaceutical for injection - Google Patents

Pharmaceutical for injection

Info

Publication number
JPS63174928A
JPS63174928A JP686987A JP686987A JPS63174928A JP S63174928 A JPS63174928 A JP S63174928A JP 686987 A JP686987 A JP 686987A JP 686987 A JP686987 A JP 686987A JP S63174928 A JPS63174928 A JP S63174928A
Authority
JP
Japan
Prior art keywords
aspoxicillin
trihydrate
injection
pharmaceutical
basic substance
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
JP686987A
Other languages
Japanese (ja)
Other versions
JPH053848B2 (en
Inventor
Keiichi Kono
河野 啓一
Hiroshi Miura
博 三浦
Toshiyuki Ueki
植木 俊行
Seiichi Morikuni
森国 誠一
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.)
Tanabe Seiyaku Co Ltd
Original Assignee
Tanabe Seiyaku 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 Tanabe Seiyaku Co Ltd filed Critical Tanabe Seiyaku Co Ltd
Priority to JP686987A priority Critical patent/JPS63174928A/en
Publication of JPS63174928A publication Critical patent/JPS63174928A/en
Publication of JPH053848B2 publication Critical patent/JPH053848B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a pharmaceutical for injection, containing aspoxicillin.trihydrate and a pharmacologically acceptable basic substance, having powerful antimicrobial activity and exhibiting excellent preservation stability. CONSTITUTION:The aimed pharmaceutical for injection obtained by blending 1mol. aspoxicillin.trihydrate with 0.4-1mol., preferably 0.7-0.9mol. basic substance in the respective forms of crystal or powder and preparing the pharmaceutical by a conventional method. The aspoxicillin.trihydrate crystals are prepared by crystallizing, e.g. aspoxicillin or a salt thereof from an aqueous solvent under weak acidic condition of pH 3-6. The aspoxicillin is capable of exhibiting excellent antimicrobial action on Gram-positive and Gram-negative bacteria. This pharmaceutical for injection can be rapidly dissolved to provide an aspoxicillin solution in a high concentration.

Description

【発明の詳細な説明】 〔技術分野〕 本発明は注射用製剤に関する。[Detailed description of the invention] 〔Technical field〕 The present invention relates to injectable formulations.

〔従来技術〕[Prior art]

アスボキシシリン〔化学名:  (2S、SR,6R)
−6−((2R) −2−((2R) −2−アミノ−
3−(N−メチルカルバモイル)プロピオンアミド)−
2−(p−ヒドロキシフェニル)アセタミド)−3,3
−ジメチル−7−オキソ−4−チア−1−アザビシクロ
(3,2,0)へブタン−2−カルボン酸〕はダラム陽
性菌及び陰性菌のいずれに対しても強い抗菌活性を有す
る優れた医薬化合物であり(特公昭54−43519号
)、粗製のアスポキシシリン含有水溶液を非極性多孔質
吸着樹脂で精製後凍結乾燥すれば、高純度の粉末として
得られることが知られている(特開昭56−40686
号)。
Asboxicillin [Chemical name: (2S, SR, 6R)
-6-((2R) -2-((2R) -2-amino-
3-(N-methylcarbamoyl)propionamide)-
2-(p-hydroxyphenyl)acetamide)-3,3
-Dimethyl-7-oxo-4-thia-1-azabicyclo(3,2,0)hebutane-2-carboxylic acid] is an excellent drug that has strong antibacterial activity against both Durham-positive and -negative bacteria. It is known that a highly pure powder can be obtained by purifying a crude aqueous solution containing aspoxycillin with a non-polar porous adsorption resin and then freeze-drying it (Japanese Patent Publication No. 54-43519). -40686
issue).

〔解決すべき技術的課題〕[Technical issues to be solved]

しかし、上記特開昭56−40686号記載の方法で得
られるアスポキシシリンは無晶形無水物であり、吸湿性
を有し、防湿、遮光等を施さない条件下では保存時に十
分安定とは言い難いものであった。
However, aspoxycillin obtained by the method described in JP-A No. 56-40686 is an amorphous anhydride, has hygroscopic properties, and is not sufficiently stable during storage without moisture protection or light shielding. Met.

またこのアスポキシシリンは水溶液から弱酸性下に晶析
させれば経時安定性にすぐれ、結晶の嵩密度が小さく、
帯電性も少ないなど医薬製剤原料として極めて優れた特
性を有する新規3水和物結晶として得られる(特願昭6
1−226423号)が、このアスポキシシリン・3水
和物は水に対する溶解度が小さく (2,8g/100
−水、0℃)、そのままでは注射用製剤として用い難い
。すなわち、注射用製剤においては保存安定性の面から
保存時は固体とし、投与時に溶液とすることが望ましい
が、アス゛ボキシシリン・3水和物は前述の如く溶解度
が小さくこのままで患者に投与しようとすれば多量の溶
媒を必要とすることとなり、投与に長時間を要したり、
或いは被投与患者に必要以上の負担を与えることが避け
られない。
In addition, this aspoxycillin has excellent stability over time when crystallized from an aqueous solution under mild acidity, and the bulk density of the crystals is small.
It is obtained as a new trihydrate crystal that has extremely excellent properties as a raw material for pharmaceutical preparations, such as low chargeability (patent application filed in 1983).
1-226423), but this aspoxycillin trihydrate has low solubility in water (2.8 g/100
- water, 0°C), it is difficult to use it as an injection preparation as it is. In other words, from the standpoint of storage stability, it is desirable for injectable preparations to be in a solid state during storage and in a solution form during administration, but asiboxicillin trihydrate has low solubility as mentioned above, making it difficult to administer it to patients as is. If the drug requires a large amount of solvent, administration may take a long time,
Alternatively, it is unavoidable to place an unnecessary burden on the recipient patient.

〔発明の構成および効果〕[Structure and effects of the invention]

本発明はアスボキシシリン・3水和物と薬理的に許容し
得る塩基性物質を含有する注射用製剤に関する。上記製
剤は水に対する低溶解度のゆえに注射用製剤として利用
し難かったアスボキシシリン・3水和物を注射用製剤と
して利用し得ることに成功したものであって、例えばア
スポキシシリン・3水和物1モルに対し塩基性物質を約
0.4〜1モル用いるときはアスボキシシリンを約5〜
30W/Vχ含有する溶液を容易に調製することができ
る。また塩基性物質量を適宜調節することによって所望
量のアスポキシシリンを含有する溶液とすることができ
るという優れた特徴を有する。
The present invention relates to an injectable preparation containing asboxicillin trihydrate and a pharmacologically acceptable basic substance. The above formulation has succeeded in using asboxycillin trihydrate, which was difficult to use as an injectable formulation due to its low solubility in water, as an injectable formulation. On the other hand, when using about 0.4 to 1 mole of a basic substance, about 5 to 1 mole of asboxycillin is used.
A solution containing 30 W/Vχ can be easily prepared. Furthermore, it has the excellent feature that a solution containing a desired amount of aspoxycillin can be obtained by appropriately adjusting the amount of basic substance.

本発明の注射用製剤においてアスボキシシリン・3水和
物と共に用いられる薬理的に許容し得る塩基性物質(以
下、単に塩基性物質と云う)としては、例えば炭酸カリ
ウム、炭酸ナトリウムなどの炭酸アルカリ金属塩、リジ
ン、アルギニン、オルニチンなどの塩基性アミノ酸、ト
リスヒドロキシメチルアミノメタンなどがあげられる。
Examples of the pharmacologically acceptable basic substances (hereinafter simply referred to as basic substances) used together with asboxicillin trihydrate in the injectable preparation of the present invention include alkali metal carbonates such as potassium carbonate and sodium carbonate. , basic amino acids such as lysine, arginine, ornithine, and trishydroxymethylaminomethane.

本発明の注射用製剤においてアスボキシシリン・3水和
物と塩基性物質の比率は、アスボキシシリン・3水和物
1モルに対し塩基性物質が約0.4〜1モル、とりわけ
約0.6〜0.9モルであるのが好ましく、約0.7〜
0.9モルであるのが最も好ましい。
In the injectable preparation of the present invention, the ratio of asboxicillin trihydrate to basic substance is about 0.4 to 1 mol, particularly about 0.6 to 0. .9 mol is preferred, and about 0.7 to .9 mol.
Most preferably it is 0.9 mole.

本発明の注射用製剤はアスボキシシリン・3水和物およ
び塩基性物質をそれぞれ結晶ないし粉末状で一緒に製剤
化して単一製剤としたものであってもよく、またアスボ
キシシリン・3水和物および塩基性物質をそれぞれ別個
に製剤化したユニット製剤であってもよい。
The injectable preparation of the present invention may be a single preparation by formulating asboxicillin trihydrate and a basic substance together in crystal or powder form, or asboxicillin trihydrate and a basic substance. It may also be a unit preparation in which each substance is formulated separately.

これらの製剤は常法により製することができ、例えば単
一製剤の場合はアスボキシシリン・3水和物および塩基
性物質をそれぞれ結晶又は粉末で混合し、この混合物を
バイアル等に充填し締栓することにより単一製剤とする
ことが出来る。またユニット製剤の場合は、アスポキシ
シリン・3水和物および塩基性物質をそれぞれ結晶また
は粉末でそれぞれ別個にバイアル等に充填するか或いは
アスボキシシリン・3水和物は結晶または粉末としてバ
イアル等に充填し、塩基性物質は水溶液としてバイアル
等に充填し、ついで締栓して各成分の製剤を一組とする
ことによりユニット製剤とすることが出来る。
These preparations can be manufactured by conventional methods; for example, in the case of a single preparation, asboxicillin trihydrate and a basic substance are mixed in the form of crystals or powder, and this mixture is filled into a vial, etc., and the cap is closed. This allows for a single preparation. In the case of a unit preparation, aspoxycillin trihydrate and the basic substance are each filled as crystals or powder into vials separately, or aspoxycillin trihydrate is filled as crystals or powder into vials, etc. A basic substance can be made into a unit preparation by filling a vial or the like as an aqueous solution and then sealing the vial to form a set of preparations for each component.

かくして得られる本発明の注射用製剤は、前記の通り速
やかに溶解して高濃度のアスボキシシリン溶液となり、
また塩基性物質量を適宜調節することによって所望量の
アスボキシシリンを含有する溶液とすることができ、し
かも良好な保存安定性を有するという優れた特徴を存す
る。
The injectable preparation of the present invention thus obtained dissolves rapidly to form a highly concentrated asboxicillin solution as described above,
Further, by appropriately adjusting the amount of basic substance, a solution containing a desired amount of asboxycillin can be obtained, and it has excellent characteristics such as good storage stability.

なお、アスボキシシリン・3水和物結晶は例えばアスポ
キシシリン又はその塩を水性溶媒(水、含水低級アルカ
ノール、含水低級アルカノン等)から弱酸性条件下(p
H3〜6)で晶析させることにより製することができる
In addition, asboxycillin trihydrate crystals can be obtained by, for example, aspoxycillin or a salt thereof in an aqueous solvent (water, water-containing lower alkanol, water-containing lower alkanone, etc.) under weakly acidic conditions (p
It can be produced by crystallizing with H3-6).

以下、本発明を実施例により更に詳細に説明する。Hereinafter, the present invention will be explained in more detail with reference to Examples.

実施例1 アスボキシシリン・3水和物をアスボキシシリン無水物
に換算して100重量部と炭酸ナトリウム17重量部(
アスボキシシリンに対し0.79モル比)を混合し、こ
の混合物を1バイアル当たりアスボキシシリン無水物に
換算して1gとなるように101111のバイアルに充
填し、締栓することにより注射用製剤を得る。
Example 1 100 parts by weight of asboxycillin trihydrate and 17 parts by weight of sodium carbonate (converted to asboxycillin anhydride)
(0.79 molar ratio to asboxicillin), and this mixture is filled into 101111 vials so that each vial contains 1 g in terms of asboxicillin anhydride, and the injection preparations are obtained by sealing the vials.

この注射用製剤に注射用蒸溜水5 mlを加えたときバ
イアルの内容物はすみやかに溶解し、20W/V%のア
スボキシシリンを含有する澄明な注射液(pH約7.5
)となる。
When 5 ml of distilled water for injection was added to this injection preparation, the contents of the vial were rapidly dissolved, resulting in a clear injection solution (pH approximately 7.5) containing 20 W/V% asboxicilin.
).

実施例2 アスポキシシリン・3水和物をアスポキシシリン無水物
に換算して100重量部とアルギニン21゜3重量部(
アスボキシシリンに対し0.6モル比)を混合し、この
混合物を1バイアル当たりアスボキシシリン無水物に換
算して1gとなるように25m1のバイアルに充填し、
締栓することにより注肘用製剤を得る。
Example 2 100 parts by weight of aspoxycillin trihydrate converted to aspoxycillin anhydride and 21°3 parts by weight of arginine (
0.6 molar ratio to asboxycillin), and this mixture was filled into 25 ml vials so that each vial contained 1 g in terms of asboxycillin anhydride.
A preparation for elbow injection is obtained by tightening the stopper.

この注射用製剤に注射用蒸溜水29m1を加えたときバ
イアルの内容物はすみやかに溶解し、5−/V%のアス
ボキシシリンを含有する澄明な注射液(pH約7.0)
となる。
When 29 ml of distilled water for injection was added to this injection preparation, the contents of the vial were rapidly dissolved, resulting in a clear injection solution containing 5-/V% asboxicillin (pH approximately 7.0).
becomes.

実施例3 アスポキシシリン・3水和物をアスポキシシリン無水物
としてIg、炭酸ナトリウム193mgをそれぞれ別個
の10 mlバイアルに充填し、締栓することにより注
射用製剤を得る。
Example 3 Aspoxycillin trihydrate is used as aspoxycillin anhydride, Ig and 193 mg of sodium carbonate are filled into separate 10 ml vials, and the vials are capped to obtain an injectable preparation.

炭酸ナトリウムのバイアルに注射用蒸溜水5mlを加え
て炭酸ナトリウム水溶液を得、この水溶液をアスボキシ
シリン・3水和物のバイアルに加えたとき、アスポキシ
シリン・3水和物はすみやかに溶解し、20W/V%の
アスボキシシリンを含有する澄明な注射液(pH約7.
6)となる。
5 ml of distilled water for injection was added to a vial of sodium carbonate to obtain an aqueous sodium carbonate solution, and when this aqueous solution was added to a vial of asboxycillin trihydrate, aspoxycillin trihydrate was rapidly dissolved and the concentration was 20 W/V. % asboxicilin (pH approximately 7.0%).
6).

実施例4〜5 実施例1において炭酸ナトリウム17重量部にかえて、
下記表に示す量の塩基性物質を用い、以下実施例1と同
様に実施することによりアスボキシシリンの注射用製剤
を得る。
Examples 4-5 In Example 1, instead of 17 parts by weight of sodium carbonate,
An injectable preparation of asboxicillin is obtained by carrying out the following procedure in the same manner as in Example 1 using the basic substance in the amount shown in the table below.

これらの注射用製剤に注射用蒸溜水5 mlを加えたと
きバイアルの内容物はすみやかに溶解し、同表に示す濃
度のアスボキシシリンを含有する澄明な注射液となる。
When 5 ml of distilled water for injection was added to these injection preparations, the contents of the vial were rapidly dissolved to form a clear injection solution containing asboxicillin at the concentration shown in the table.

表 参考例 アスボキシシリンの無晶形無水物10gに水50 m 
lを加え、40℃に加温し溶解後希塩酸でpH4,0に
調整する。30℃1時間PA拌後5°C迄冷却し析出す
る結晶を濾過、水洗後乾燥することにより、白色のアス
ボキシシリン・3水和物8gを得る。
Table reference example 10 g of amorphous anhydride of asboxicillin and 50 m of water
1, heated to 40°C, dissolved, and adjusted to pH 4.0 with dilute hydrochloric acid. After stirring under PA at 30°C for 1 hour, the mixture was cooled to 5°C, and the precipitated crystals were filtered, washed with water, and dried to obtain 8 g of white asboxycillin trihydrate.

水分値(KF)10.05%(3モル相当)含量(HP
LC)99.7% 旋光度(α) =+ 179. 5 ’(C=1.0.
水)粉末X線回折パターン
Moisture value (KF) 10.05% (equivalent to 3 moles) Content (HP
LC) 99.7% Optical rotation (α) = + 179. 5' (C=1.0.
Water) Powder X-ray diffraction pattern

Claims (1)

【特許請求の範囲】[Claims] アスポキシシリン・3水和物と薬理的に許容し得る塩基
性物質とからなる注射用製剤。
An injectable preparation consisting of aspoxycillin trihydrate and a pharmacologically acceptable basic substance.
JP686987A 1987-01-14 1987-01-14 Pharmaceutical for injection Granted JPS63174928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP686987A JPS63174928A (en) 1987-01-14 1987-01-14 Pharmaceutical for injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP686987A JPS63174928A (en) 1987-01-14 1987-01-14 Pharmaceutical for injection

Publications (2)

Publication Number Publication Date
JPS63174928A true JPS63174928A (en) 1988-07-19
JPH053848B2 JPH053848B2 (en) 1993-01-18

Family

ID=11650239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP686987A Granted JPS63174928A (en) 1987-01-14 1987-01-14 Pharmaceutical for injection

Country Status (1)

Country Link
JP (1) JPS63174928A (en)

Also Published As

Publication number Publication date
JPH053848B2 (en) 1993-01-18

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