JPH06287197A - Chiral 1-beta-methylcarbapenem intermediate - Google Patents

Chiral 1-beta-methylcarbapenem intermediate

Info

Publication number
JPH06287197A
JPH06287197A JP5076875A JP7687593A JPH06287197A JP H06287197 A JPH06287197 A JP H06287197A JP 5076875 A JP5076875 A JP 5076875A JP 7687593 A JP7687593 A JP 7687593A JP H06287197 A JPH06287197 A JP H06287197A
Authority
JP
Japan
Prior art keywords
beta
solution
methylcarbapenem
group
ozone
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
JP5076875A
Other languages
Japanese (ja)
Inventor
Nobuo Nagashima
伸夫 長嶋
Makoto Yamaguchi
誠 山口
Kazunori Suga
和憲 菅
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 JP5076875A priority Critical patent/JPH06287197A/en
Publication of JPH06287197A publication Critical patent/JPH06287197A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a new chiral 1-beta-methylcarbopenem intermediate, composed of a specific beta-lactam compound containing aldehyde group, useful as a raw material, etc., for producing 1-beta-methylcarbapenem compounds attracting attention as an antitumor agent at a low cost according to simple operation. CONSTITUTION:A compound expressed by formula I (R<1> to R<3> are lower alkyl or aryl) {e.g. (3S,4R)-3-[(1R)-1-(tertiary butyldimethylsilyloxy)ethyll-4-[(1S)-1- methyl-2-propenyl]azetidin-2-one} is dissolved in a mixed solvent of methylene chloride with methanol and ozone is then introduced into the prepared solution until a blue color is assumed in the solution while cooling the resultant mixture in a dry ice-acetone bath. A reducing agent (e.g. dimethyl sulfide) is added to the reactional solution while cooling the solution and the prepared reactional mixture is subsequently returned to ambient temperature to carry out the reaction. Thereby, the objective chiral 1-beta-methylcarbapenem intermediate, composed of a propionaldehyde derivative and expressed by formula II is obtained.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、1−β−メチルカルバ
ペネム化合物製造のための新規中間体およびその製法に
関する。
TECHNICAL FIELD The present invention relates to a novel intermediate for producing a 1-β-methylcarbapenem compound and a process for producing the same.

【0002】[0002]

【従来の技術】広い抗菌スペクトルを有するチエナマイ
シンが天然から発見され報告されて以来、種々のカルバ
ペネム化合物を純合成的にうる方法が報告されている。
BACKGROUND OF THE INVENTION Since thienamycin having a broad antibacterial spectrum was discovered and reported in nature, a method for obtaining various carbapenem compounds in a pure synthetic manner has been reported.

【0003】その後、1984年にカルバペネム骨格の1位
にβ−メチル基が導入された化合物[Heterocycles,21,2
9(1984).] が従来の1位無置換カルバペネム化合物に比
べて生体内安定性などにおいて優れており、かつ強い抗
菌力を有することが報告された。それに伴い種々の置換
基を有する1−β−メチルカルバペネム化合物の合成研
究が活発に行なわれるようになり、近年、多くの報告が
されるに至っている。
Then, in 1984, a compound in which a β-methyl group was introduced at the 1-position of the carbapenem skeleton [Heterocycles, 21 , 2
9 (1984).] Is superior to conventional 1-position unsubstituted carbapenem compounds in terms of in vivo stability and has a strong antibacterial activity. Along with this, synthetic studies of 1-β-methylcarbapenem compounds having various substituents have been actively conducted, and many reports have been made in recent years.

【0004】前述した1−β−メチルカルバペネム化合
物の製造においては、従来、構造式(III) :
In the production of the above-mentioned 1-β-methylcarbapenem compound, the structural formula (III):

【0005】[0005]

【化4】 [Chemical 4]

【0006】で表わされるβ−ラクタム化合物および前
記化合物から多数工程を経て誘導される、構造式(IV):
A β-lactam compound represented by and a structural formula (IV) derived from the compound through a number of steps:

【0007】[0007]

【化5】 [Chemical 5]

【0008】で表わされるβ−ラクタム化合物がその重
要な製造中間体として多用されている[総説として、有
機合成化学協会誌,47,606(1989). などを例示でき
る]。
The β-lactam compound represented by is frequently used as an important intermediate for its production [as a review, the Journal of Organic Synthetic Chemistry, 47 , 606 (1989).

【0009】また、1−β−メチルカルバペネム化合物
に関して記載された特開昭59-130884 号公報中に示され
ている製造工程図Iにおいては、下記一般式:
Further, in the manufacturing process diagram I shown in JP-A-59-130884, which describes the 1-β-methylcarbapenem compound, the following general formula:

【0010】[0010]

【化6】 [Chemical 6]

【0011】(Rは水酸基の保護基を示す)で表わされ
る化合物が1−β−メチルカルバペネム化合物の製造中
間体として記載されているが、前記式中のRがp−ニト
ロベンジルオキシカルボニル基である反応中間体として
登場、記載されているのみである。さらに、前記化合物
については未単離であり、物理定数の記載はされていな
い。すなわち、前記式中のRがトリ置換シリル基である
ような化合物は新規化合物である。
A compound represented by the formula (R represents a hydroxyl-protecting group) is described as an intermediate for the production of 1-β-methylcarbapenem compounds. In the above formula, R is a p-nitrobenzyloxycarbonyl group. It appears and is described only as a reaction intermediate. Furthermore, the above compound has not been isolated and no physical constant is described. That is, a compound in which R in the above formula is a tri-substituted silyl group is a novel compound.

【0012】[0012]

【発明が解決しようとする課題】本発明は、近年抗菌剤
として注目を集め活発に研究されている1−β−メチル
カルバペネム化合物の製造のための新規中間体を提供す
ることを目的とする。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a novel intermediate for producing a 1-β-methylcarbapenem compound, which has recently been attracting attention and is actively studied as an antibacterial agent.

【0013】また、本発明のもう一つの目的は前記新規
中間体の製法を提供することにある。
Another object of the present invention is to provide a method for producing the above novel intermediate.

【0014】本発明者らは、工業的製法の観点から容易
に入手できそうな原料を使用し、簡便な操作により1−
β−メチルカルバペネム化合物の製造中間体として新規
かつ有用な化合物およびその製法を提供するべく研究を
行ない、本発明に到達した。
The present inventors use raw materials that are likely to be easily obtained from the viewpoint of industrial production method, and
The present invention has been accomplished by conducting research to provide a novel and useful compound as a production intermediate of a β-methylcarbapenem compound and a method for producing the same.

【0015】[0015]

【課題を解決するための手段】本発明は、一般式(I) :The present invention has the general formula (I):

【0016】[0016]

【化7】 [Chemical 7]

【0017】(式中、R1 、R2 およびR3 はそれぞれ
同一または異なる低級アルキル基またはアリール基を示
す)で表わされる新規化合物を提供するものであり、一
般式(II):
The present invention provides a novel compound represented by the general formula (II): wherein R 1 , R 2 and R 3 are the same or different lower alkyl groups or aryl groups.

【0018】[0018]

【化8】 [Chemical 8]

【0019】(式中、R1 、R2 およびR3 は前記と同
じ)で表わされる化合物にオゾンを作用させたのち、つ
いで還元剤を作用させることを特徴とする、一般式(I)
The compound represented by the general formula (I) is characterized in that ozone is allowed to act on the compound represented by the formula (wherein R 1 , R 2 and R 3 are the same as above), and then a reducing agent is acted on.
:

【0020】[0020]

【化9】 [Chemical 9]

【0021】(式中、R1 、R2 およびR3 は前記と同
じ)で表わされる化合物の製法を提供するものである。
The present invention provides a process for producing a compound represented by the formula (wherein R 1 , R 2 and R 3 are the same as above).

【0022】[0022]

【実施例】R1 、R2 およびR3 で示される基はそれぞ
れ同一または異なる低級アルキル基、アリール基であ
り、低級アルキル基としては、たとえばメチル基、エチ
ル基、n−プロピル基、イソプロピル基、t−ブチル
基、イソブチル基、テキシル基などの炭素数1〜6のア
ルキル基を好適なものとしてあげることができる。ま
た、アリール基としては、フェニル基、トリル基、ナフ
チル基などが代表例としてあげられる。
Examples The groups represented by R 1 , R 2 and R 3 are the same or different lower alkyl groups and aryl groups, and examples of the lower alkyl groups include methyl group, ethyl group, n-propyl group and isopropyl group. Suitable examples thereof include alkyl groups having 1 to 6 carbon atoms such as t-butyl group, isobutyl group and thexyl group. Typical examples of the aryl group include a phenyl group, a tolyl group and a naphthyl group.

【0023】本発明において使用される原料のβ−ラク
タム化合物(II)は、たとえば特開平1-163188号公報に記
載の方法によって容易に製造することができる。
The raw material β-lactam compound (II) used in the present invention can be easily produced by the method described in, for example, JP-A-1-163188.

【0024】化合物(II)はオゾンと反応させたのち、つ
いで還元剤を作用させることにより本発明の目的物質で
あるβ−ラクタム化合物(I) に変換される。化合物(II)
とオゾンとの反応は、通常、有機溶媒中に溶解あるいは
懸濁させた化合物(II)の溶液中に過剰量のオゾンを導入
することにより実施され、このばあい、好適反応溶媒と
してメタノール、ジクロロメタンおよびこれらの混合溶
媒などが使用される。オゾンの導入および反応は通常−
78℃〜25℃の温度範囲で実施されるが、オゾンとオレフ
ィンとの反応はかなりの発熱をともなうため、オゾンの
導入は冷却下に反応液の温度を制御しながら実施され
る。また、オゾンが過剰量導入されたか調べるには、も
っとも簡便には反応液への青色の着色をもって判断する
ことができるが、必要なら、たとえば薄層クロマトグラ
フィーにより反応液を経時的に分析し、原料の消失をも
って判断することもできる。オゾン導入後の反応時間は
反応温度にも依存するが、通常は1〜2時間で充分であ
る。
The compound (II) is converted to the β-lactam compound (I), which is the target substance of the present invention, by reacting it with ozone and then reacting with a reducing agent. Compound (II)
The reaction of ozone with ozone is usually carried out by introducing an excess amount of ozone into a solution of compound (II) dissolved or suspended in an organic solvent, and in this case, methanol and dichloromethane are used as preferred reaction solvents. And mixed solvents thereof are used. The introduction and reaction of ozone is usually −
The reaction is carried out in the temperature range of 78 ° C to 25 ° C, but since the reaction between ozone and olefin is accompanied by considerable heat generation, the introduction of ozone is carried out under cooling while controlling the temperature of the reaction solution. In addition, the easiest way to check whether ozone has been introduced in excess is to judge the reaction solution by coloring it in blue, but if necessary, analyze the reaction solution over time by, for example, thin layer chromatography, It can also be judged by the disappearance of the raw materials. The reaction time after the introduction of ozone depends on the reaction temperature, but 1 to 2 hours is usually sufficient.

【0025】前記により生成させた化合物(II)のオゾン
との反応中間体をついで還元剤により処理するが、この
反応は反応中間体を単離することなく実施される。ま
ず、反応液中に溶存するオゾンを窒素を通じることによ
り除去し、ついで還元剤を加えて処理する。還元剤とし
てはトリフェニルホスフィン、ジメチルスルフィド、ヨ
ウ化ナトリウム、ヨウ化カリウム、亜鉛−酢酸、グリオ
キシル酸、チオ尿素、亜硫酸水素ナトリウムなどがあげ
られ、そのほか水素を還元剤としたパラジウム−炭素、
酸化白金、ラネーニッケルによる接触還元などを例示で
きるが、好適にはジメチルスルフィド、ヨウ化カリウ
ム、ヨウ化ナトリウムが使用される。使用する還元剤は
用いた化合物(II)に対して過剰量を使用する。その量は
用いる還元剤によっても異なるが、通常は1.1 〜3.0 当
量程度である。還元剤は通常冷却下に反応溶液中に添加
され、その後、反応液を徐々に昇温することによって反
応が実施される。最終的に反応は25℃程度の温度で実施
され、反応時間は数時間〜10時間程度である。
The reaction intermediate of the compound (II) thus formed with ozone is then treated with a reducing agent, but this reaction is carried out without isolation of the reaction intermediate. First, ozone dissolved in the reaction solution is removed by passing nitrogen through it, and then a reducing agent is added for treatment. Examples of the reducing agent include triphenylphosphine, dimethyl sulfide, sodium iodide, potassium iodide, zinc-acetic acid, glyoxylic acid, thiourea, sodium hydrogen sulfite, and the like, and palladium-carbon using hydrogen as a reducing agent,
Examples thereof include catalytic reduction with platinum oxide and Raney nickel, but dimethyl sulfide, potassium iodide and sodium iodide are preferably used. The reducing agent used is an excess amount with respect to the compound (II) used. Although the amount varies depending on the reducing agent used, it is usually about 1.1 to 3.0 equivalents. The reducing agent is usually added to the reaction solution under cooling, and then the reaction is carried out by gradually raising the temperature of the reaction solution. Finally, the reaction is carried out at a temperature of about 25 ° C., and the reaction time is about several hours to 10 hours.

【0026】目的とする生成物は反応液から夾雑物(た
とえば未反応原料、副生成物、溶媒)を常法(たとえば
抽出、洗浄、乾燥、濃縮、濾過)により除去したのち、
常用の後処理を行なうことにより単離できる。
The desired product is obtained by removing impurities (for example, unreacted raw materials, by-products and solvents) from the reaction solution by a conventional method (for example, extraction, washing, drying, concentration and filtration).
It can be isolated by performing a conventional post-treatment.

【0027】なお、本発明の化合物は、たとえばJ.Org.
Chem.,54,3258(1989).および特開平4-270244号公報に記
載の方法により、下記のように1−β−メチルカルバペ
ネム化合物製造の有用中間体へ変換が可能である。
The compound of the present invention can be synthesized, for example, by J. Org.
Chem., 54 , 3258 (1989). And JP-A-4-270244 can be used to convert to a useful intermediate for the production of 1-β-methylcarbapenem compounds as described below.

【0028】[0028]

【化10】 [Chemical 10]

【0029】(式中、R1 、R2 およびR3 は前記と同
じ、R4 はカルボキシル基の保護基を示す。)R4 はた
とえばメチル基、エチル基、アリル基、t−ブチル基、
ベンジル基、p−ニトロベンジル基、p−メトキシベン
ジル基などを示す。
(In the formula, R 1 , R 2 and R 3 are the same as above, R 4 is a protecting group for a carboxyl group.) R 4 is, for example, a methyl group, an ethyl group, an allyl group, a t-butyl group,
A benzyl group, a p-nitrobenzyl group, a p-methoxybenzyl group and the like are shown.

【0030】また、下記反応により、たとえば特開平4-
273876号公報に記載されているC−2置換型1−β−メ
チルカルバペネム化合物製造の有用中間体への変換も可
能である。
Further, according to the following reaction, for example, JP-A-4-
Conversion to a useful intermediate for the production of C-2 substituted 1-β-methylcarbapenem compounds described in Japanese Patent No. 273876 is also possible.

【0031】[0031]

【化11】 [Chemical 11]

【0032】(式中、R1 、R2 およびR3 は前記と同
じ、Arはアリール基やヘテロアリール基などを、Mは
Li、Mg−Haloなどを示す。)Arとしてたとえ
ばフェニル基、2−ピリジル基、3−ピリジル基、4−
ピリジル基、3−(5−フェニルピリジル)基、3−
(5−メチルチオピリジル)基、3−ベンゾフラニル基
などがあげられる。
(Wherein R 1 , R 2 and R 3 are the same as above, Ar represents an aryl group or a heteroaryl group, M represents Li, Mg-Halo, etc.) As Ar, for example, a phenyl group, 2 -Pyridyl group, 3-pyridyl group, 4-
Pyridyl group, 3- (5-phenylpyridyl) group, 3-
Examples thereof include (5-methylthiopyridyl) group and 3-benzofuranyl group.

【0033】実施例1 (3S,4R)−3−[(1R)−1−(第3級ブチル
ジメチルシリルオキシ)エチル]−4−[(1S)−1
−メチル−2−プロペニル]アゼチジン−2−オン 0.
85g(3mmol)を塩化メチレン(36ml)およびメタノー
ル(9ml)の混合溶媒に溶解し、ドライアイス−アセト
ン浴によりこの溶液を冷却しながら溶液中に青色がつく
までオゾンを導入した。オゾンの導入は1時間で実施
し、その間の反応液の温度は−64〜−70℃に保った。オ
ゾン導入終了後に反応液を薄層クロマトグラフィーによ
り調べたところ原料の消失が確認できたので、ついで窒
素を反応器内に流すことにより反応液中に過剰に残って
いるオゾンを追い出した。ジメチルスルフィド0.66ml
(9mmol)を反応液に冷却下に添加したのち、冷却浴を
とりのぞいて自然昇温させ、室温で1.5 時間撹拌、反応
させた。反応後、溶媒を減圧留去し、さらに室温にて一
夜間減圧乾燥して白色固体929mg をえた。この固体をシ
リカゲルカラムクロマトグラフィー(ワコーゲルC−20
0 :60g;ヘキサン−酢酸エチル3:1→1:1)によ
り精製して(2R)−2−[(3S,4R)−3−
[(1R)−1−(第3級ブチルジメチルシリルオキ
シ)エチル]−2−オキソアゼチジン−4−イル]プロ
ピオンアルデヒド753.4mg(収率88%)をえた。ヘキサン
より再結晶すると下記物理定数を有する白色針状結晶が
えられた。
Example 1 (3S, 4R) -3-[(1R) -1- (tertiary butyldimethylsilyloxy) ethyl] -4-[(1S) -1
-Methyl-2-propenyl] azetidin-2-one 0.
85 g (3 mmol) was dissolved in a mixed solvent of methylene chloride (36 ml) and methanol (9 ml), and ozone was introduced until the solution became blue while cooling the solution with a dry ice-acetone bath. The introduction of ozone was carried out for 1 hour, during which the temperature of the reaction solution was kept at -64 to -70 ° C. After the introduction of ozone, the reaction solution was examined by thin-layer chromatography. As a result, it was confirmed that the raw materials had disappeared. Then, nitrogen was flown into the reactor to expel excess ozone remaining in the reaction solution. Dimethyl sulfide 0.66 ml
(9 mmol) was added to the reaction solution under cooling, the cooling bath was removed, the temperature was raised naturally, and the mixture was stirred and reacted at room temperature for 1.5 hours. After the reaction, the solvent was distilled off under reduced pressure and further dried under reduced pressure overnight at room temperature to obtain 929 mg of a white solid. This solid was subjected to silica gel column chromatography (Wako Gel C-20
0:60 g; hexane-ethyl acetate 3: 1 → 1: 1) to give (2R) -2-[(3S, 4R) -3-
753.4 mg (yield 88%) of [(1R) -1- (tertiary butyldimethylsilyloxy) ethyl] -2-oxoazetidin-4-yl] propionaldehyde was obtained. Recrystallization from hexane gave white needle crystals having the following physical constants.

【0034】融点:94.2〜95.0℃1 H NMR(CDCl3 ):δ0.08(9H,s)、0.87(6H,
s)、1.22(3H,d,J=7.3Hz)、1.22(3H,d,J=7.3Hz)、2.68(1
H,m)、2.98(1H,m)、3.94(1H,m)、4.20(1H,m)、5.81(1H,
br s) 、9.75(1H,d,J=1.0Hz)13 C NMR(CDCl3 ):δ−4.9 、−4.3 、9.1
、17.9、22.6、25.7、49.3、50.3、61.9、65.6、168.1
、202.3 FAB−MS:m/z=286 (M+ ) IR(KBr,cm-1):3463、1763、1725、1254、113
8、1049、963 、837 、779 [α] 20:−16.5°(c=1.008 、CH2 Cl2 ) 実施例2 (3S,4R)−3−[(1R)−1−(第3級ブチル
ジメチルシリルオキシ)エチル]−4−[(1S)−1
−メチル−2−プロペニル]アゼチジン−2−オン 0.
85g(3mmol)を塩化メチレン(36ml)およびメタノー
ル(9ml)の混合溶媒に溶解し、ドライアイス−アセト
ン浴によりこの溶液を冷却しながら溶液中に青色がつく
までオゾンを導入した。オゾンの導入は1時間で実施
し、その間の反応液の温度は−70〜−75℃に保った。オ
ゾン導入終了後に反応液を薄層クロマトグラフィーによ
り調べたところ原料の消失が確認できたので、ついで窒
素を反応器内に流すことにより反応液中に過剰に残って
いるオゾンを追い出した。冷却を氷浴に変え、30分間撹
拌したのちヨウ化カリウム563 mg(3.39mmol)を溶解し
た水溶液(3ml)を一度に添加した。氷浴をとりのぞい
て自然昇温させ、室温で7時間撹拌、反応させた。反応
後、有機層を分液し、途中トルエン10mlを添加して減圧
濃縮を行なった。えられた残渣に酢酸エチルおよび塩化
メチレン各20mlを加え、0.1 N亜硫酸水素ナトリウム水
溶液30ml(3mmol)を加えて撹拌することによりヨウ素
による着色を除いた。有機層を分液し、飽和食塩水(30
ml)で洗浄後硫酸ナトリウムで乾燥した。乾燥剤を分離
後溶媒を減圧留去してえられる白色固体を実施例1と同
様にシリカゲルカラムクロマトグラフィーにより精製し
て(2R)−2−[(3S,4R)−3−[(1R)−
1−(第3級ブチルジメチルシリルオキシ)エチル]−
2−オキソアゼチジン−4−イル]プロピオンアルデヒ
ドをえた。収量353.8mg (収率41%)。
Melting point: 94.2-95.0 ° C. 1 H NMR (CDCl 3 ): δ0.08 (9H, s), 0.87 (6H,
s), 1.22 (3H, d, J = 7.3Hz), 1.22 (3H, d, J = 7.3Hz), 2.68 (1
H, m), 2.98 (1H, m), 3.94 (1H, m), 4.20 (1H, m), 5.81 (1H, m)
br s), 9.75 (1H, d, J = 1.0 Hz) 13 C NMR (CDCl 3 ): δ-4.9, -4.3, 9.1.
, 17.9, 22.6, 25.7, 49.3, 50.3, 61.9, 65.6, 168.1
, 202.3 FAB-MS: m / z = 286 (M + ) IR (KBr, cm -1 ): 3463, 1763, 1725, 1254, 113.
8, 1049, 963, 837, 779 [α] D 20 : -16.5 ° (c = 1.008, CH 2 Cl 2 ) Example 2 (3S, 4R) -3-[(1R) -1- (tertiary grade Butyldimethylsilyloxy) ethyl] -4-[(1S) -1
-Methyl-2-propenyl] azetidin-2-one 0.
85 g (3 mmol) was dissolved in a mixed solvent of methylene chloride (36 ml) and methanol (9 ml), and ozone was introduced until the solution became blue while cooling the solution with a dry ice-acetone bath. The introduction of ozone was carried out for 1 hour, during which the temperature of the reaction solution was kept at -70 to -75 ° C. After the introduction of ozone, the reaction solution was examined by thin-layer chromatography. As a result, it was confirmed that the raw materials had disappeared. Then, nitrogen was flown into the reactor to expel excess ozone remaining in the reaction solution. After changing the cooling to an ice bath and stirring for 30 minutes, an aqueous solution (3 ml) in which 563 mg (3.39 mmol) of potassium iodide was dissolved was added at once. The ice bath was removed, the temperature was raised naturally, and the mixture was stirred and reacted at room temperature for 7 hours. After the reaction, the organic layer was separated, 10 ml of toluene was added on the way, and the mixture was concentrated under reduced pressure. 20 ml of ethyl acetate and 20 ml of methylene chloride were added to the obtained residue, and 30 ml (3 mmol) of a 0.1N sodium hydrogen sulfite aqueous solution was added, and the mixture was stirred to remove the coloring due to iodine. The organic layer was separated and saturated brine (30
(ml) and dried over sodium sulfate. The white solid obtained by separating the desiccant after removing the solvent under reduced pressure was purified by silica gel column chromatography in the same manner as in Example 1 to obtain (2R) -2-[(3S, 4R) -3-[(1R)). −
1- (tertiary butyldimethylsilyloxy) ethyl]-
2-oxoazetidin-4-yl] propionaldehyde was obtained. Yield 353.8 mg (41% yield).

【0035】[0035]

【発明の効果】本発明によれば、入手容易な原料を使用
して簡便な操作により1−β−メチルカルバペネム化合
物製造のための新規有用中間体をうることができ、工業
的にも有利な製造方法が提供される。
INDUSTRIAL APPLICABILITY According to the present invention, a novel useful intermediate for producing a 1-β-methylcarbapenem compound can be obtained by a simple operation using easily available raw materials, which is industrially advantageous. A manufacturing method is provided.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 一般式(I) : 【化1】 (式中、R1 、R2 およびR3 はそれぞれ同一または異
なる低級アルキル基またはアリール基を示す)で表わさ
れる化合物。
1. A compound represented by the general formula (I): (In the formula, R 1 , R 2 and R 3 each represent the same or different lower alkyl group or aryl group).
【請求項2】 R1 およびR2 がCH3 −、R3 が(C
3 3 C−である請求項1記載の化合物。
2. R 1 and R 2 are CH 3 — and R 3 is (C
H 3) 3 C-a is a compound according to claim 1.
【請求項3】 一般式(II): 【化2】 (式中、R1 、R2 およびR3 はそれぞれ同一または異
なる低級アルキル基またはアリール基を示す)で表わさ
れる化合物にオゾンを作用させたのち、ついで還元剤を
作用させることを特徴とする、一般式(I) : 【化3】 (式中、R1 、R2 およびR3 は前記と同じ)で表わさ
れる化合物の製法。
3. The general formula (II): (Wherein R 1 , R 2 and R 3 are the same or different lower alkyl groups or aryl groups respectively), ozone is allowed to act on the compound, and then a reducing agent is acted on. General formula (I): (Wherein R 1 , R 2 and R 3 are the same as above).
JP5076875A 1993-04-02 1993-04-02 Chiral 1-beta-methylcarbapenem intermediate Pending JPH06287197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5076875A JPH06287197A (en) 1993-04-02 1993-04-02 Chiral 1-beta-methylcarbapenem intermediate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5076875A JPH06287197A (en) 1993-04-02 1993-04-02 Chiral 1-beta-methylcarbapenem intermediate

Publications (1)

Publication Number Publication Date
JPH06287197A true JPH06287197A (en) 1994-10-11

Family

ID=13617816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5076875A Pending JPH06287197A (en) 1993-04-02 1993-04-02 Chiral 1-beta-methylcarbapenem intermediate

Country Status (1)

Country Link
JP (1) JPH06287197A (en)

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