JP2649705B2 - Preparation of intermediates for the synthesis of carbapenem antibiotics - Google Patents

Preparation of intermediates for the synthesis of carbapenem antibiotics

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Publication number
JP2649705B2
JP2649705B2 JP63227092A JP22709288A JP2649705B2 JP 2649705 B2 JP2649705 B2 JP 2649705B2 JP 63227092 A JP63227092 A JP 63227092A JP 22709288 A JP22709288 A JP 22709288A JP 2649705 B2 JP2649705 B2 JP 2649705B2
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Prior art keywords
group
compound
nmr
general formula
formula
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JPH0273057A (en
Inventor
泰行 北
修 田村
三木  隆
英之 戸野
恭光 田村
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、カルバペネム系抗生物質合成中間体の製造
法に関する。
Description: TECHNICAL FIELD The present invention relates to a method for producing a carbapenem antibiotic synthetic intermediate.

従来の技術とその問題点 従来から、β−ラクタム環の4位に置換基を有するβ
−ラクタム類において、該置換基がアセチルオキシ基、
塩素原子、アルキルスルホニル基等である場合は、これ
らを直接C2ユニットに置換できることは、知られてい
る。しかしながら、スルフィニル基を直接C2ユニットに
置換する反応については、全く知られていない。
Conventional technology and its problems Conventionally, β having a substituent at the 4-position of the β-lactam ring
-In lactams, the substituent is an acetyloxy group,
Chlorine atom, if it is such as an alkyl sulfonyl group, is can be substituted to these direct C 2 units, it is known. However, for the reaction to replace the direct C 2 units sulfinyl group, it is completely unknown.

問題点を解決するための手段 本発明者は、従来からβ−ラクタム類の製造法につい
て種々研究を重ねてきた。その過程で、β−ラクタム環
の4位にスルフィニル基を有する或る種のβ−ラクタム
類を、特定の触媒の存在下にO−シリルケテンアセター
ル類と反応させる場合には、該スルフィニル基を直接C2
ユニットに置換でき、且つ、原料であるβ−ラクタム類
の3,4位の立体異性に関係なく、トランス体が優先的に
得られることを見出し、本発明を完成した。
Means for Solving the Problems The present inventor has repeatedly studied various methods for producing β-lactams. In the process, when certain β-lactams having a sulfinyl group at the 4-position of the β-lactam ring are reacted with O-silylketene acetals in the presence of a specific catalyst, the sulfinyl group is converted to Direct C 2
The inventors have found that trans-forms can be preferentially obtained regardless of the stereoisomers at the 3- and 4-positions of β-lactams as raw materials, and have completed the present invention.

すなわち本発明は、ハロゲン化亜鉛の存在下に、一般
〔式中、R1は水素原子又は低級アルキル基を示す。R2
アミノ基の保護基を示す。R3はアリール基を示す。〕 で表わされる化合物と一般式 〔式中、R4、R5及びR6は夫々低級アルキル基を示す。R7
は低級アルコキシ基又は基 (式中、R8はカルボキシ基の保護基を示す。)を示
す。〕 で表わされる化合物とを反応させることを特徴とする、
一般式 〔式中、R1、R2及びR7は上記に同じ。〕 で表わされるカルバペネム系抗生物質合成中間体の製造
法。
That is, the present invention provides a compound represented by the general formula: [In the formula, R 1 represents a hydrogen atom or a lower alkyl group. R 2 represents a protecting group for an amino group. R 3 represents an aryl group. And a compound represented by the general formula: Wherein R 4 , R 5 and R 6 each represent a lower alkyl group. R 7
Is a lower alkoxy group or group (In the formula, R 8 represents a protecting group for a carboxy group.) Characterized by reacting with a compound represented by
General formula Wherein R 1 , R 2 and R 7 are the same as above. ] A method for producing a carbapenem antibiotic synthetic intermediate represented by the formula:

本発明製造法によって得られる上記一般式(1)の化
合物は、カルバペネム系抗生物質の製造中間体として有
用である。
The compound of the above general formula (1) obtained by the production method of the present invention is useful as an intermediate for producing a carbapenem antibiotic.

本明細書において、アミノ基の保護基としては、例え
ば、フェニル低級アルキル基、トリ低級アルキルキシリ
ル基等を挙げることができる。フェニル低級アルキル基
としては、例えば、ベンジル、ジフェニルメチル、1−
フェニルエチル、2−フェニルエチル、3−フェニルプ
ロピル、4−フェニルブチル、5−フェニルペンチル、
6−フェニルヘキシル、p−ニトロベンジル基等の置換
基を有することのあるフェニル基が1又は2個置換した
炭素数1〜6の直鎖又は分枝状のアルキル基を挙げるこ
とができる。トリ低級アルキルシリル基としては、例え
ば、トリメチルシリル基、トリエチルシリル基、トリプ
ロピルシリル基、トリブチルシリル基、トリ(tert−ブ
チル)シリル基、tert−ブチルジメチルシリル、トリペ
ンチルシリル、トリヘキシルシリル基等のアルキル部分
の炭素数が1〜6であるトリ低級アルキルシリル基を挙
げることができる。
In the present specification, examples of the amino-protecting group include a phenyl lower alkyl group and a tri-lower alkylxylyl group. Examples of the phenyl lower alkyl group include benzyl, diphenylmethyl, 1-
Phenylethyl, 2-phenylethyl, 3-phenylpropyl, 4-phenylbutyl, 5-phenylpentyl,
Examples thereof include a linear or branched alkyl group having 1 to 6 carbon atoms in which one or two phenyl groups which may have a substituent such as 6-phenylhexyl and p-nitrobenzyl group are substituted. Examples of the tri-lower alkylsilyl group include a trimethylsilyl group, a triethylsilyl group, a tripropylsilyl group, a tributylsilyl group, a tri (tert-butyl) silyl group, a tert-butyldimethylsilyl, a tripentylsilyl, and a trihexylsilyl group. And a tri-lower alkylsilyl group having 1 to 6 carbon atoms in the alkyl portion.

カルボキシ基の保護基としては、例えば、低級アルキ
ル基又はフェニル低級アルキル基を挙げることができ
る。低級アルキル基としては、例えば、メチル、エチ
ル、プロピル、iso−プロピル、ブチル、tert−ブチ
ル、ペンチル、ヘキシル基等の炭素数1〜6の直鎖分は
分枝状のアルキル基を挙げることができる。
Examples of the protecting group for the carboxy group include a lower alkyl group and a phenyl lower alkyl group. Examples of lower alkyl groups include straight-chain branched alkyl groups having 1 to 6 carbon atoms such as methyl, ethyl, propyl, iso-propyl, butyl, tert-butyl, pentyl, and hexyl groups. it can.

低級アルコキシ基としては、例えば、メトキシ、エト
キシ、プロポキシ、iso−プロポキシ、ブトキシ、tert
−ブトキシ、ペンチルオキシ、ヘキシルオキシ基等の炭
素数1〜6の直鎖又は分枝状のアルコキシ基を挙げるこ
とができる。
As the lower alkoxy group, for example, methoxy, ethoxy, propoxy, iso-propoxy, butoxy, tert
-A straight-chain or branched alkoxy group having 1 to 6 carbon atoms such as butoxy, pentyloxy and hexyloxy groups.

アリーム基としては、例えば、適宣置換していてもよ
いフェニル基を挙げることができる。具体的には、ハロ
ゲン原子、炭素数1〜6の低級アルキル基、炭素数1〜
6の低級アルコキシ基等の置換基を有することのあるフ
ェニル基を挙げることができる。
Examples of the aryl group include a phenyl group which may be appropriately substituted. Specifically, a halogen atom, a lower alkyl group having 1 to 6 carbon atoms,
And a phenyl group which may have a substituent such as 6 lower alkoxy groups.

上記一般式(1)の化合物は、ハロゲン化亜鉛の存在
下に、一般式(2)の化合物と一般式(3)の化合物を
反応させることにより製造できる。反応は、通常溶媒中
で行なわれる。ハロゲン化亜鉛としては、例えば、Zn
I2、ZnCl2、ZnBr2等を挙げることができる。溶媒として
は反応に影響を与えないものであれば特に制限されず、
例えば、アセトニトリル等のニトリル類、塩化メチレ
ン、クロロホルム等のハロゲン化炭化水素類、ジオキサ
ン、テトラヒドロフラン(THF)等のエーテル類等を挙
げることができる。化合物(2)と化合物(3)の使用
量は特に制限されないが、通常前者に対して後者を少な
くとも等モル量程度、好ましくは1〜4倍モル量程度用
いればよい。また、ハロゲン化亜鉛の量は適宣選択すれ
ばよい。反応は、通常−20〜50℃程度、好ましくは0℃
〜室温程度の温度下に行なわれ、10分〜24時間程度で終
了する。
The compound of the general formula (1) can be produced by reacting the compound of the general formula (2) with the compound of the general formula (3) in the presence of a zinc halide. The reaction is usually performed in a solvent. Examples of zinc halide include Zn
I 2 , ZnCl 2 , ZnBr 2 and the like can be mentioned. The solvent is not particularly limited as long as it does not affect the reaction,
Examples thereof include nitriles such as acetonitrile, halogenated hydrocarbons such as methylene chloride and chloroform, and ethers such as dioxane and tetrahydrofuran (THF). The amounts of compound (2) and compound (3) to be used are not particularly limited, but usually the latter may be used in at least about an equimolar amount, preferably about 1 to 4 times the molar amount of the former. The amount of zinc halide may be appropriately selected. The reaction is usually performed at about -20 to 50 ° C, preferably at 0 ° C.
It is performed at a temperature of about to room temperature, and is completed in about 10 minutes to 24 hours.

本発明において、化合物(1)の製造原料となる化合
物(2)は、文献未記載の新規化合物であり、例えば、
一般式 〔式中、R1、R2及びR3は上記に同じ。〕 で表わされるβ−ラクタム類を酸化することにより製造
できる。酸化反応は、m−クロル過安息香酸、過ヨード
酸ナトリウム等の通常の酸化剤の存在下、通常の溶媒中
で行なわれる。溶媒としては、上記の化合物(1)の合
成反応において使用する溶媒と同様とものが使用され
る。酸化剤の使用量は特に制限されないが、通常化合物
(4)に対して酸化剤を少なくとも等モル程度、好まし
くは1〜2倍モル程度使用すればよい。反応は、室温下
に行なわれ、1分〜24時間程度で終了する。
In the present invention, compound (2), which is a raw material for producing compound (1), is a novel compound not described in the literature.
General formula Wherein R 1 , R 2 and R 3 are the same as above. Can be produced by oxidizing a β-lactam represented by the formula: The oxidation reaction is carried out in a usual solvent in the presence of a usual oxidizing agent such as m-chloroperbenzoic acid, sodium periodate and the like. As the solvent, those similar to the solvents used in the above synthesis reaction of compound (1) are used. Although the amount of the oxidizing agent is not particularly limited, it is generally sufficient to use the oxidizing agent at least in an equimolar amount, preferably in an amount of about 1 to 2 times, based on the compound (4). The reaction is performed at room temperature and is completed in about 1 minute to 24 hours.

上記で得られる本発明の化合物(1)は、公知の方法
にしたがって脱シリン化することにより、公知のカルバ
ペネム系抗生物質合成中間体に導くことができる。
The compound (1) of the present invention obtained above can be converted to a known carbapenem-based antibiotic synthesis intermediate by desilylation according to a known method.

例えば、本発明化合物(1)のうち、一般式 〔式中R1は上記に同じ。R2′はトリ低級アルキルシル基
を示す。R7′は基 (式中、R8は上記に同じ。)〕 で表わされる化合物のメタノール、THF等の溶液中に、
テトラブチルアンモニウムフロオライド3水和物(TBAF
・3H2O)及び酢酸を添加することにより、一般式 (式中、R8は上記に同じ。)〕 で表わされる公知のカルバペネム系抗生物質合成中間体
〔テトラヘドロン レターズ(Tetrahedron Letters),
21,31(1980)〕を得ることができる。
For example, among the compounds of the present invention (1), [Wherein R 1 is the same as above. R 2 ′ represents a tri-lower alkylsilyl group. R 7 ′ is a group (In the formula, R 8 is the same as above.)] In a solution of a compound represented by the formula
Tetrabutylammonium fluoride trihydrate (TBAF
・ By adding 3H 2 O) and acetic acid, the general formula (Wherein, R 8 is the same as above.)], A known carbapenem antibiotic synthetic intermediate [Tetrahedron Letters,
21, 31 (1980)].

また、一般式 〔式中R1及びR2′は上記に同じ。R7″は低級アルコキシ
基を示す。〕 で表わされる化合物のメタノール、THF等の溶液中に、T
BAF・3H2O及び酢酸を添加することにより、一般式 〔式中R1及びR7″は上記に同じ。〕で表わされる公知の
カルバペネム系抗生物質合成中間体〔ジャーナル オブ
ザ ケミカル ソサイエテイ (Journal of the Che
mical Society),パーキン ソランザクション(Perki
n Transaction)I,2228(1981)〕を得ることができ
る。
Also, the general formula [Wherein R 1 and R 2 ′ are the same as above. R 7 ″ represents a lower alkoxy group.] In a solution of the compound represented by the formula
By adding BAF · 3H 2 O and acetic acid, the general formula [Wherein R 1 and R 7 ″ are the same as above.] [Journal of the Chemical Society (Journal of the Chemical Society)]
mical Society), Perkin Solance Action (Perki)
n Transaction) I, 2228 (1981)].

実 施 例 以下に参考例及び実施例を挙げる。Examples Examples and reference examples are given below.

参考例1 N−(1′,1′−ジフェニルメチル)−3(S)−
(エチル)−4(R)−(フェニルチオ)−アゼチジ
ン−2−オン11.5mg(0.0308mM)を、ジクロルメタン2m
lに溶解し、氷冷した。
Reference Example 1 N- (1 ', 1'-diphenylmethyl) -3 (S * )-
(Ethyl) -4 (R * )-(phenylthio) -azetidin-2-one 11.5 mg (0.0308 mM) was added to dichloromethane 2m
l and cooled on ice.

これに、純度80%のm−クロロ過安息香酸7.6mg(m
−クロロ過安息香酸量6.8mg、0.0352mM)ジクロルメタ
ン溶液(1ml)を滴下し、30分間撹拌した。反応液をジ
クロルメタン10mlを加えて希釈し、飽和炭化水素ナトリ
ウム水溶液20mlで洗浄した。ジクロルメタン相を分離
し、更に水相よりジクロルメタン20mlで4回抽出した。
合わせたジクロルメタン相を飽和食塩水50mlで洗浄し、
ジクロルメタン相を分離して硫酸マグネシウムで乾燥し
た。硫酸マグネシウムを去し、液を濃縮した。得ら
れた残渣をカラムクロマトグラフィー(SiO2、溶出溶
媒;n−ヘキサン:酢酸エチル=3:1)にて精製し、N−
(1′,1′−ジフェニルメチル)−3(S)−(エチ
ル)−4(R)−(フェニルスルフィニル)−アゼチ
ジン−2−オン11.6mg(0.0298mM)を白色結晶として得
た。
To this, 7.6 mg of m-chloroperbenzoic acid having a purity of 80% (m
A solution of chloroperbenzoic acid (6.8 mg, 0.0352 mM) in dichloromethane (1 ml) was added dropwise, and the mixture was stirred for 30 minutes. The reaction solution was diluted by adding 10 ml of dichloromethane and washed with 20 ml of an aqueous saturated sodium hydrocarbon solution. The dichloromethane phase was separated, and the aqueous phase was further extracted four times with 20 ml of dichloromethane.
The combined dichloromethane phase was washed with 50 ml of saturated saline,
The dichloromethane phase was separated and dried over magnesium sulfate. The magnesium sulfate was removed and the solution was concentrated. The obtained residue was purified by column chromatography (SiO 2 , elution solvent; n-hexane: ethyl acetate = 3: 1) to give N-
11.6 mg (0.0298 mM) of (1 ', 1'-diphenylmethyl) -3 (S * )-(ethyl) -4 (R * )-(phenylsulfinyl) -azetidin-2-one was obtained as white crystals.

収率:97%。Yield: 97%.

実施例1 参考例で得られたN−(1′,1′−ジフェニルメチ
ル)−3(S)−(エチル)−4(R)−(フェニ
ルスルフィニル)−アゼチジン−2−オン13.5mg(0.03
47mM)及び沃化亜鉛1.6mg(0.00502mM)を無水アセトニ
トリル1mlに溶解し、−20℃に冷却した。
Example 1 13.5 mg of N- (1 ', 1'-diphenylmethyl) -3 (S * )-(ethyl) -4 (R * )-(phenylsulfinyl) -azetidin-2-one obtained in Reference Example (0.03
47 mM) and 1.6 mg (0.00502 mM) of zinc iodide were dissolved in 1 ml of anhydrous acetonitrile and cooled to -20 ° C.

これに、ケテン メチルtert−ブチルジメチルシリル
アセタール15.6mg(0.0830mM)の無水アセトニトリル
溶液(0.5ml)を滴下し、5分間撹拌した。反応液をジ
クロルメタン10mlで希釈し、飽和炭酸水素ナトリウム水
溶液20mlで洗浄した。ジクロルメタン相を分離し、更に
水相よりジクロルメタン(20ml)で4回抽出した。合せ
たジクロルメタン相を飽和食塩水50mlで洗浄し、ジクロ
ルメタン相を分離して硫酸マグネシウムで乾燥した。硫
酸マグネシウムを去し、液を濃縮した。得られた残
渣をカラムクロマトグラフィー(SiO2、溶出溶媒;n−ヘ
キサン:酢酸エチル=3:1)にて精製し、N−(1′,
1′−ジフェニルメチル)−3(S)−(エチル)−
4(R)−(メトキシカルボニルメチル)−アゼチジ
ン−2−オン10.4mg(0.0309mM)を淡黄色油状物として
得た。収率:89%。
To this, a solution of 15.6 mg (0.0830 mM) of ketene methyl tert-butyldimethylsilyl acetal in 0.5 ml of anhydrous acetonitrile was added dropwise and stirred for 5 minutes. The reaction solution was diluted with 10 ml of dichloromethane and washed with 20 ml of a saturated aqueous solution of sodium hydrogen carbonate. The dichloromethane phase was separated, and the aqueous phase was further extracted four times with dichloromethane (20 ml). The combined dichloromethane phase was washed with 50 ml of saturated saline, and the dichloromethane layer was separated and dried over magnesium sulfate. The magnesium sulfate was removed and the solution was concentrated. The obtained residue was purified by column chromatography (SiO 2 , elution solvent; n-hexane: ethyl acetate = 3: 1) to give N- (1 ′,
1'-diphenylmethyl) -3 (S * )-(ethyl)-
10.4 mg (0.0309 mM) of 4 (R * )-(methoxycarbonylmethyl) -azetidin-2-one was obtained as a pale yellow oil. Yield: 89%.

得られた化合物につき、90MHz−1H−NMRで測定したと
おこ、該化合物の3S,4S体(シス体)は検知できな
かった。1 H−NMR(CDCl3中、500MHZ)δ:0.967(3H,t,J=7.33H
z,−CH2CH3 ) 1.751(2H.m.−CH2 CH3) 2.381(1H,dd,J=8.54Hz,J=15.87Hz,−CH2 COOMe) 2.438(1H,dd,J=5.49Hz,J=15.87Hz,−CH2 COOMe) 2.852(1H,dt,J=1.83Hz,J=7.32Hz, 3.585(3H,s,−COOCH3 ) 3.657(1H,ddd,J=1.83Hz,J=5.49Hz,J=8.54Hz, 5.94(1H,s,−CPh2) 7.218〜7.395(10H,−COPh2 ) IR υmax(CHCl3):cm-1 1735,1495,1440,1380 実施例2〜10 実施例1と同様にして以下の化合物を得た。
Per resulting compound, to put a measured in 90MHz- 1 H-NMR, of the compound 3S *, 4S * body (cis isomer) could not be detected. (In CDCl 3, 500MHZ) 1 H- NMR δ: 0.967 (3H, t, J = 7.33H
z, -CH 2 C H 3) 1.751 (2H.m.-C H 2 CH 3) 2.381 (1H, dd, J = 8.54Hz, J = 15.87Hz, -C H 2 COOMe) 2.438 (1H, dd, J = 5.49Hz, J = 15.87Hz, -C H 2 COOMe) 2.852 (1H, dt, J = 1.83Hz, J = 7.32Hz, 3.585 (3H, s, -COOC H 3) 3.657 (1H, ddd, J = 1.83Hz, J = 5.49Hz, J = 8.54Hz, 5.94 (1H, s, -C H Ph 2) 7.218~7.395 (10H, -CO Ph 2) IR υmax (CHCl 3): cm -1 1735,1495,1440,1380 same manner as in Example 2-10 Example 1 The following compound was obtained.

実施例2 溶媒:アセトニトリル 化合物(2)と化合物(3)の反応条件(以下単に反応
条件という):室温で5分間 収率:52%1 H−NMR(CDCl3中、90MHZ)δ: 2.47(1H,dd,J=7.0Hz,−C 2COOMe) 2.50(1H,dd,J=6.0Hz,−C 2COOMe) 2.67(1H,dd,J=14.5Hz,J=2Hz, 3.11(1H,dd,J=14.5Hz,I=5Hz, 3.56(3H,s,−CO2CH3 ) 3.76〜4.02(1H,m, 4.20,4.45(2H,d,J=15HZ,−CH2 Ph) 7.22(5H,−CH2 Ph) IR υmax(CHCl3):cm-1 1740,1440,1400 実施例3 溶媒:アセトニトリル/ジクロルメタン(1/1) 反応条件:−78℃で化合物(3)の滴下を開始し、−20
℃まで徐々に昇温したのち、−20℃で一晩放置 収率:88%、ジアステレオマーの混合物1 H−NMR(CDCl3中、90MHZ)δ: 1.63,1.70(3H,d,J=7.0 2.37,3.39(2H,d,J=5.0Hz,−CH2 COOMe) 2.62(1H,dd,J=13.5Hz,J=2.0Hz, 3.07(1H,dd,J=13.5Hz,J=4.5Hz, 3.58(3H,s,−CO2CH3 ) 3.69〜3.91(1H,m, 4.80,4.91(1H,q,J=7.0Hz, 7.28(5H,−Ph) IR υmax(CHCl3):cm-1 1735,1440,1375 実施例4 溶媒:アセトニトリル 反応条件:−20℃で5分間結晶 結晶:淡黄色油状物 収率:85.1% 得られた化合物の異性体の比率を、1H−NMR(500MH
z)の積分値より求めたところ、トランス体:シス体=
7:1であった。1 H−NMR(CDCl3中、500MHZ)δ: 〔トランス体〕 0.967(3H,t,J=7.33Hz,−CH2CH3 ) 1.751(2H,m,−CH2 CH3) 2.381(1H,dd,J=8.54Hz,J=15.87Hz,−CH2 COO−) 2.438(1H,dd,J=5.49Hz,J=15.87Hz,−CH2 COO−) 2.852(1H,dt,J=1.83Hz,J=7.32Hz, 3.585(3H,s,−OCH3 ) 3.675(1H,ddd,J=1.83Hz,J=5.49Hz,J=8.54Hz, 5.947(1H,s,−C−Ph2) 7.239〜7.396(10H,−Ph×2) (シス体) 1.086(3H,t,−CH2CH3 ) 3.201(1H,ddd,J=5.49Hz,J=6.10Hz,J=9.77Hz, 3.573(3H,s,−OCH3 ) 4.153(1H,dt,J=9.76Hz,J=5.49Hz 5.916(1H,s,−C−Ph2) 7.239〜7.396(10H,−Ph×2) 実施例5 溶媒:無水アセトニトリル 反応条件:0℃で15分間結晶 結晶:淡黄色油状物 収率83.1% 得られた化合物の異性体の比率を、1H−NMR(500MH
z)の積分値より求めたところ、トランス体:シス体=1
0:1であった。1 H−NMR(CDCl3中、500MHZ)δ: (トランス体) 0.98(3H,t,J=7.3Hz,−CH2CH3 ) 1.65〜1.84(2H,m,−CH2 CH3) 2.48(1H,dd,J=15.9Hz,J=6.7Hz,−C 2CO2Me) 2.58(1H,dd,J=15.9Hz,J=6.1Hz,−C 2CO2Me) 2.85(1H,ddd,J=1.8Hz,J=7.0Hz,J=8.0Hz 3.55(1H,td,J=1.8Hz,J=6.1Hz,J=7.3Hz, 3.61(3H,s,−CO2Me) 4.17,4.55(2H,d,J=15.3Hz,−CH2 −Ph) 7.24〜7.35(10H,SPh,−Ph) IR υmax(CHCl3):cm-1 1725,1440,1400 〔シス体〕1 H−NMR(CDCl3中、500MHZ)δ: 1.08(3H,t,J=7.3Hz,−CH2CH3 ) 3.58(3H,s,−CO2CH3 ) 4.25,4.45(2H,d,J=15.3HZ,−CH2 Ph) 7.24〜7.35(10H,SPh,−Ph) 実施例6 溶媒:無水アセトニトリル 反応条件:室温で10分間 結晶:無色油状物 収率:88.7%1 H−NMR(CDCl3中、90MHZ)δ: 2.35(1H,d,J=1.2Hz, のHa又はHb) 2.44(1H,s, のHa又はHb) 2.74(1H,dd,J=14.2Hz,J=2.4Hz, 3.22(1H,dd,J=14.2Hz,J=5.0Hz, 3.60(3H,s,−CO2CH3 ) 4.00(1H,m, 5.95(1H,s,−CPh2) 7.27(10H,m,−Ph×2) IR υmax(CHCl3):cm-1 1745(エステル、アミドC=O) 実施例7 溶媒:無水アセトニトリル 反応条件:−10℃で1時間 結晶:無色油状物 収率:72.4% 得られた化合物の異性体の比率を、1H−NMR(500MH
z)の積分値より求めたところ、トランス体:シス体=9
5:5であった。
Example 2 Solvent: acetonitrile Reaction conditions of compound (2) and compound (3) (hereinafter simply referred to as reaction conditions): 5 minutes at room temperature Yield: 52% 1 H-NMR (90 MHZ in CDCl 3 ) δ: 2.47 (1H, dd) , J = 7.0Hz, -C H 2 COOMe) 2.50 (1H, dd, J = 6.0Hz, -C H 2 COOMe) 2.67 (1H, dd, J = 14.5Hz, J = 2Hz, 3.11 (1H, dd, J = 14.5Hz, I = 5Hz, 3.56 (3H, s, -CO 2 C H 3) 3.76~4.02 (1H, m, 4.20,4.45 (2H, d, J = 15HZ, -C H 2 Ph) 7.22 (5H, -CH 2 Ph) IR υmax (CHCl 3): cm -1 1740,1440,1400 Example 3 Solvent: acetonitrile / dichloromethane (1/1) Reaction conditions: start dropping of compound (3) at -78 ° C,
After gradually heated to ° C., -20 overnight standing yield ℃: 88%, (in CDCl 3, 90 MHz) mixture 1 H-NMR of diastereomers δ: 1.63,1.70 (3H, d, J = 7.0 2.37,3.39 (2H, d, J = 5.0Hz, -C H 2 COOMe) 2.62 (1H, dd, J = 13.5Hz, J = 2.0Hz, 3.07 (1H, dd, J = 13.5Hz, J = 4.5Hz, 3.58 (3H, s, -CO 2 C H 3) 3.69~3.91 (1H, m, 4.80,4.91 (1H, q, J = 7.0Hz, 7.28 (5H, -Ph) IR υmax (CHCl 3 ): cm −1 1735,1440,1375 Example 4 Solvent: acetonitrile Reaction condition: crystal at -20 ° C for 5 minutes Crystal: pale yellow oily substance Yield: 85.1% The ratio of the isomers of the obtained compound was determined by 1 H-NMR (500 MHz
When calculated from the integral value of z), trans form: cis form =
7: 1. (In CDCl 3, 500MHZ) 1 H- NMR δ: [trans form] 0.967 (3H, t, J = 7.33Hz, -CH 2 C H 3) 1.751 (2H, m, -C H 2 CH 3) 2.381 ( 1H, dd, J = 8.54Hz, J = 15.87Hz, -C H 2 COO-) 2.438 (1H, dd, J = 5.49Hz, J = 15.87Hz, -C H 2 COO-) 2.852 (1H, dt, J = 1.83Hz, J = 7.32Hz, 3.585 (3H, s, -OC H 3) 3.675 (1H, ddd, J = 1.83Hz, J = 5.49Hz, J = 8.54Hz, 5.947 (1H, s, -C H -Ph 2) 7.239~7.396 (10H, -Ph × 2) ( cis form) 1.086 (3H, t, -CH 2 C H 3) 3.201 (1H, ddd, J = 5.49 Hz, J = 6.10 Hz, J = 9.77 Hz, 3.573 (3H, s, -OC H 3) 4.153 (1H, dt, J = 9.76Hz, J = 5.49Hz 5.916 (1H, s, -C H -Ph 2) 7.239~7.396 (10H, -Ph × 2) Example 5 Solvent: anhydrous acetonitrile Reaction conditions: Crystallized at 0 ° C for 15 minutes Crystal: pale yellow oily yield 83.1% The ratio of the isomers of the obtained compound was determined by 1 H-NMR (500 MHz
When calculated from the integrated value of z), trans form: cis form = 1
0: 1. 1 (in CDCl 3, 500MHZ) H-NMR δ: ( trans form) 0.98 (3H, t, J = 7.3Hz, -CH 2 C H 3) 1.65~1.84 (2H, m, -C H 2 CH 3) 2.48 (1H, dd, J = 15.9Hz, J = 6.7Hz, -C H 2 CO 2 Me) 2.58 (1H, dd, J = 15.9Hz, J = 6.1Hz, -C H 2 CO 2 Me) 2.85 ( 1H, ddd, J = 1.8Hz, J = 7.0Hz, J = 8.0Hz 3.55 (1H, td, J = 1.8Hz, J = 6.1Hz, J = 7.3Hz, 3.61 (3H, s, -CO 2 Me) 4.17,4.55 (2H, d, J = 15.3Hz, -C H 2 -Ph) 7.24~7.35 (10H, SPh, -Ph) IR υmax (CHCl 3): cm -1 1725,1440,1400 [cis form] 1 H-NMR (500 MHZ in CDCl 3 ) δ: 1.08 (3H, t, J = 7.3 Hz, -CH 2 CH 3 ) 3.58 (3H, s, -CO 2 C H 3) 4.25,4.45 (2H , d, J = 15.3HZ, -C H 2 Ph) 7.24~7.35 (10H, SPh, -Ph) example 6 Solvent: anhydrous acetonitrile Reaction condition: 10 minutes at room temperature Crystal: colorless oily substance Yield: 88.7% 1 H-NMR (90MHZ in CDCl 3 ) δ: 2.35 (1H, d, J = 1.2Hz, Ha or Hb) 2.44 (1H, s, 2.74 (1H, dd, J = 14.2Hz, J = 2.4Hz, 3.22 (1H, dd, J = 14.2Hz, J = 5.0Hz, 3.60 (3H, s, -CO 2 C H 3) 4.00 (1H, m, 5.95 (1H, s, -C H Ph 2) 7.27 (10H, m, -Ph × 2) IR υmax (CHCl 3): cm -1 1745 ( ester, amide C = O) Example 7 Solvent: Anhydrous acetonitrile Reaction conditions: 1 hour crystals -10 ° C.: colorless oil Yield: the ratio of the isomers of 72.4% obtained compound, 1 H-NMR (500MH
When calculated from the integrated value of z), trans form: cis form = 9
5: 5.

〔トランス体〕1 H−NMR(CDCl3中、500MHZ)δ: 0.20,0.25(計6H,s,−SiMe2 ) 0.96(9H,s,−Si−t−C4 H9 ) 1.00(3H,t,J=7.2Hz,−CH2CH3 ) 1.75(2H,m,−CH2 CH3) 2.50(1H,dd,J=9.8Hz,J=15.5Hz,−CHCO2Me) 2.84(1H,dd,J=4.3Hz,J=15.5Hz,−CHCO2Me) 2.88(1H,ddd,J=6.0Hz,J=7.0Hz,J=2.4Hz, 3.59(1H,ddd,J=9.8Hz,J=4.3Hz,J=2.4Hz, 3.70(3H,s,−OCH3 ) IR υmax(CHCl3):cm-1 1730 〔シス体〕1 H−NMR(CDCl3中、500MHZ)δ: 0.20,0.23(計6H,s,−SiMe2) 0.95(9H,s,−Si−t−C4 H9 ) 1.06(3H,t,J=7.2Hz,−CH2CH3 ) 1.65〜1.81(2H,m,−CH2 CH3) 2.58(1H,dd,J=9.8Hz,J=16.5Hz,−CHCO2Me) 2.70(1H,dd,J=5.3Hz,J=16.5Hz,−CHCO2Me) 3.28(1H,td,J=5.7Hz,J=10.5Hz,J=2.4Hz, 4.09(1H,ddd,J=9.8Hz,J=4.3Hz,J=5.5Hz, 3.70(3H,s,−OCH3 ) IR υmax(CHCl3):cm-1 1730 実施例8 実施例7の原料化合物(トランス体)を用いた。[Trans form] 1 H-NMR (500 MHZ in CDCl 3 ) δ: 0.20, 0.25 (total 6 H, s, -Si Me 2 ) 0.96 (9 H, s, -Si-t-C 4 H 9 ) 1.00 (3H , t, J = 7.2Hz, -CH 2 C H 3) 1.75 (2H, m, -C H 2 CH 3) 2.50 (1H, dd, J = 9.8Hz, J = 15.5Hz, -C H HCO 2 Me ) 2.84 (1H, dd, J = 4.3Hz, J = 15.5Hz, -CH H CO 2 Me) 2.88 (1H, ddd, J = 6.0Hz, J = 7.0Hz, J = 2.4Hz, 3.59 (1H, ddd, J = 9.8Hz, J = 4.3Hz, J = 2.4Hz, 3.70 (3H, s, -O CH 3) IR υmax (CHCl 3): ( in CDCl 3, 500MHZ) cm -1 1730 [cis-form] 1 H-NMR δ: 0.20,0.23 (total 6H, s, -SiMe 2) 0.95 (9H, s, -Si-t-C 4 H 9) 1.06 (3H, t, J = 7.2Hz, -CH 2 C H 3) 1.65~1.81 (2H, m, -C H 2 CH 3 ) 2.58 (1H, dd, J = 9.8Hz, J = 16.5Hz, -C H HCO 2 Me) 2.70 (1H, dd, J = 5.3Hz, J = 16.5Hz, -CH H CO 2 Me) 3.28 (1H , td, J = 5.7Hz, J = 10.5Hz, J = 2.4Hz, 4.09 (1H, ddd, J = 9.8Hz, J = 4.3Hz, J = 5.5Hz, 3.70 (3H, s, -O CH 3) IR υmax (CHCl 3): cm -1 1730 starting compound of Example 8 Example 7 (trans form) was used.

溶媒:無水アセトニトリル 反応条件:−20℃で1時間 結晶:無色油状物 収率77.3% 得られた化合物の異性体の比率を、1H−NMR(500MH
z)の積分値より求めたところ、トランス体:シス体=9
5:5であった。
Solvent: anhydrous acetonitrile Reaction condition: 1 hour at -20 ° C Crystal: colorless oily substance 77.3% The ratio of the isomers of the obtained compound was determined by 1 H-NMR (500 MHz
When calculated from the integrated value of z), trans form: cis form = 9
5: 5.

実施例9 実施例7の原料化合物(トランス体:シス体=1:1.
7)を用いた。
Example 9 The starting compound of Example 7 (trans form: cis form = 1: 1.
7) was used.

溶媒:無水アセトニトリル 反応条件:−20℃で5時間 結晶:無色油状物 収率:66.5% 得られた化合物の異性体の比率を、1H−NMR(500MH
z)の積分値より求めたところ、トランス体:シス体=9
4:6であった。
Solvent: anhydrous acetonitrile Reaction conditions: -20 ° C for 5 hours Crystal: colorless oil Yield: 66.5% The ratio of the isomers of the obtained compound was determined by 1 H-NMR (500 MH
When calculated from the integrated value of z), trans form: cis form = 9
4: 6.

実施例10 実施例7の原料化合物(トランス体とシス体の混合
物)を用いた。また、ケテン メチル tert−ブチルジ
メチルシリル アセタールに代えてケテン エチル te
rt−ブチルジメチルシリル アセタールを用いた。
Example 10 The starting compound of Example 7 (a mixture of a trans form and a cis form) was used. Also, instead of ketene methyl tert-butyldimethylsilyl acetal, ketene ethyl te
rt-Butyldimethylsilyl acetal was used.

溶媒:無水アセトニトリル 反応条件:室温まで昇温して30分間反応 結晶:無色油状物 収率:31.4%1 H−NMR(CDCl3中、90MHZ)δ: 0.20(3H,s,SiMe) 0.25(3H,s,SiMe) 0.95(9H,s,−Si−t−C4 H9 ) 0.98(3H,t,J=7Hz,−CH2CH3 ) 1.24(3H,t,J=7Hz,−CO2CH2CH3 ) 1.73(2H,m,−CH2 CH3) 2.22〜2.98(3H,m, 3.56(1H,m, 4.14(2H,q,J=7Hz,−CO2CH2 CH3) IR υmax(CHCl3):cm-1 1730(エステルC=O) 実施例11 溶媒:無水アセトニトリル 反応条件:無水条件下窒素気流中、−20℃で1.5時間 結晶:無色油状物 収率:86.1%1 H−NMR(CDCl3中、500MHZ)δ: 0.22(3H,s,Si(CH3 ) 0.25(3H,s,Si(CH3 ) 0.96(9H,s,−Si−t−C4 H9 ) 2.49(1H,dd,J=15.9Hz,J=9.8Hz, のHa又はHb) 2.77(1H,dd,J=15.9Hz,J2.5Hz, 2.87(1H,dd,J=15.9Hz,J=3.7Hz, ののHa又はHb) 3.30(1H,dd,J=15.9Hz,J5.5Hz, 3.70(3H,s,−CO2CH3 ) 3.89(1H,m, IR υmax(CHCl3):cm-1 1730(エステルC=O) 実施例12 窒素雰囲気下、N−tert−ブチルジメチルシリル−4
−フェニルスルフィニル−アゼチジン−2−オン 19.1
mg(0.0618mM)及び沃化亜鉛2.0mg(0.00618mM)を無水
アセトニトリル1.0mlに溶解した。
Solvent: anhydrous acetonitrile Reaction condition: warmed to room temperature and reacted for 30 minutes Crystal: colorless oil Yield: 31.4% 1 H-NMR (90MHZ in CDCl 3 ) δ: 0.20 (3H, s, SiMe) 0.25 (3H , s, SiMe) 0.95 (9H , s, -Si-t-C 4 H 9) 0.98 (3H, t, J = 7Hz, -CH 2 C H 3) 1.24 (3H, t, J = 7Hz, -CO 2 CH 2 C H 3) 1.73 (2H, m, -C H 2 CH 3) 2.22~2.98 (3H, m, 3.56 (1H, m, 4.14 (2H, q, J = 7 Hz, —CO 2 CH 2 CH 3 ) IRυmax (CHCl 3 ): cm −1 1730 (ester C = O) Example 11 Solvent: anhydrous acetonitrile Reaction conditions: 1.5 hours at -20 ° C in a nitrogen stream under anhydrous conditions Crystal: colorless oil Yield: 86.1% 1 H-NMR (500MHZ in CDCl 3 ) δ: 0.22 (3H, s, Si (C H 3) 2) 0.25 (3H, s, Si (C H 3) 2) 0.96 (9H, s, -Si-t-C 4 H 9) 2.49 (1H, dd, J = 15.9Hz, J = 9.8Hz, 2.77 (1H, dd, J = 15.9Hz, J2.5Hz, 2.87 (1H, dd, J = 15.9Hz, J = 3.7Hz, 3.30 (1H, dd, J = 15.9Hz, J5.5Hz, 3.70 (3H, s, -CO 2 C H 3) 3.89 (1H, m, IR υmax (CHCl 3 ): cm −1 1730 (ester C = O) Under a nitrogen atmosphere, N-tert-butyldimethylsilyl-4
-Phenylsulfinyl-azetidin-2-one 19.1
mg (0.0618 mM) and zinc iodide 2.0 mg (0.00618 mM) were dissolved in anhydrous acetonitrile 1.0 ml.

室温下、これに、ベンジル 3−(tert−ブチルジメ
チルシロキシ)−2−ジアゾ−3−ブチテノエイト 4
1.0mg(0.124mM)の無水アセトニトリル溶液(2.5ml)
を15分間で滴下し、1.5時間撹拌した。以下実施例1と
同様に精製し、N−tert−ジブチルジメチルシリル−4
−(3−ベンジルオキシ−3−ジアゾ−2−オキソカル
ボニルプロピル)アゼチジン−2−オン12.7mg(0.0317
mM)を淡黄色油状物として得た。収率51.2%。1 H−NMR(CDCl3中、90MHZ)δ: 0.21(3H,s,SiMe) 0.25(3H,s,SiMe) 0.95(9H,s,−Si−t−C4 H9 ) 2.50〜4.01(5H,m 5.20(2H,s,−CH2 Ph) 7.30(5H,m,−Ph) IR υmax(CHCl3):cm-1 2150(=N2)、1725(アミドC=O,エステルC=O)、
1625(C=N) 実施例13 実施例12と同様にして以下の化合物を得た。
At room temperature, benzyl 3- (tert-butyldimethylsiloxy) -2-diazo-3-butythenoate 4
1.0 mg (0.124 mM) of anhydrous acetonitrile solution (2.5 ml)
Was added dropwise over 15 minutes and stirred for 1.5 hours. Thereafter, purification was performed in the same manner as in Example 1, and N-tert-dibutyldimethylsilyl-4 was obtained.
-(3-Benzyloxy-3-diazo-2-oxocarbonylpropyl) azetidin-2-one 12.7 mg (0.0317
mM) as a pale yellow oil. Yield 51.2%. (In CDCl 3, 90MHZ) 1 H- NMR δ: 0.21 (3H, s, SiMe) 0.25 (3H, s, SiMe) 0.95 (9H, s, -Si-t-C 4 H 9) 2.50~4.01 (5H , m 5.20 (2H, s, -C H 2 Ph) 7.30 (5H, m, - Ph) IR υmax (CHCl 3): cm -1 2150 (= N 2), 1725 ( amide C = O, ester C = O) ,
1625 (C = N) Example 13 The following compound was obtained in the same manner as in Example 12.

溶媒:無水アセトニトリル 反応条件:室温で10分間 結晶:無色油状物 収率:40.3%1 H−NMR(CDCl3中、500MHZ)δ: 0.20(3H,s,SiMe) 0.25(3H,s,SiMe) 0.97(9H,s,−Si−t−C4 H9 ) 0.99(3H,t,J=7.3Hz,−CH2CH3 ) 1.77(2H,t,−CH2 CH3) 2.81(1H,td,J=6.71Hz,J1.83Hz, 3.02(1H,dd,J=17.1Hz,J=9.8Hz, のHa又はHb) 3.45(1H,dd,J=17.1Hz,J=3.66Hz, のHa又はHb) 3.65(1H,m, 5.28(2H,d,J=4.88Hz,−CH2 Ph) 7.38(5H,m,−Ph) IR υmax(CHCl3):cm-1 2150(=N2)、1725(C=O,ラクタムC=O)、1645
(N=C) 参考例2 N−tert−ブチルジメチルシリル−4−(3−ベンジ
ルオキシカルボニル−3−ジアゾ−2−オキソプロピ
ル)アゼチジン−2−オン13.1mg(0.0327mM、実施例12
の化合物)のTHF(0.5ml)溶液に、氷冷下、テトラブチ
ルアンモニウムフルオリド・3水和物(TBAF・3H2O)1
0.3mg(0.0327mM)と酢酸4.2mg(0.0654mM)のTHF(1m
l)溶液を滴下し、30分間撹拌した。反応液をジクロル
メタン80mlで希釈し、飽和炭酸水素ナトリウム水溶液10
ml及び飽和食塩水10mlで洗浄し、ジクロルメタン相を分
離して硫酸ナトリウムで乾燥した。硫酸ナトリウムを
去し、液を濃縮し、得られた残渣をカラムクロマトグ
ラフィーにて精製し、4−(3−ベンジルオキシカルボ
ニル−3−ジアゾ−2−オキソプロピル)アゼチジン−
2−オン 9.4mg(0.0327mM)を白色結晶として得た。
収率100%。
Solvent: anhydrous acetonitrile Reaction condition: 10 minutes at room temperature Crystal: colorless oily substance Yield: 40.3% 1 H-NMR (500MHZ in CDCl 3 ) δ: 0.20 (3H, s, SiMe) 0.25 (3H, s, SiMe) 0.97 (9H, s, -Si- t-C 4 H 9) 0.99 (3H, t, J = 7.3Hz, -CH 2 C H 3) 1.77 (2H, t, -C H 2 CH 3) 2.81 (1H , td, J = 6.71Hz, J1.83Hz, 3.02 (1H, dd, J = 17.1Hz, J = 9.8Hz, 3.45 (1H, dd, J = 17.1 Hz, J = 3.66 Hz, 3.65 (1H, m, 5.28 (2H, d, J = 4.88Hz, -C H 2 Ph) 7.38 (5H, m, - Ph) IR υmax (CHCl 3): cm -1 2150 (= N 2), 1725 (C = O, lactam C = O), 1645
(N = C) Reference Example 2 13.1 mg (0.0327 mM, Example 12) of N-tert-butyldimethylsilyl-4- (3-benzyloxycarbonyl-3-diazo-2-oxopropyl) azetidin-2-one
Compound (1) in a THF (0.5 ml) solution under ice-cooling was added tetrabutylammonium fluoride trihydrate (TBAF-3H 2 O) 1
0.3 mg (0.0327 mM) and 4.2 mg (0.0654 mM) of acetic acid in THF (1 m
l) The solution was added dropwise and stirred for 30 minutes. The reaction solution was diluted with 80 ml of dichloromethane, and saturated aqueous sodium hydrogen carbonate solution 10
After washing with 10 ml of a saturated saline solution, the dichloromethane phase was separated and dried over sodium sulfate. The sodium sulfate was removed, the solution was concentrated, and the obtained residue was purified by column chromatography to give 4- (3-benzyloxycarbonyl-3-diazo-2-oxopropyl) azetidine-
9.4 mg (0.0327 mM) of 2-one was obtained as white crystals.
100% yield.

1H−NMR(CDCl3中、500MHZ)δ: 2.68(1H,ddd,J=15.0Hz,J=2.6Hz,J=1.2Hz. 3.04(1H,dd,J=18.0Hz,J=8.6Hz, 3.15(1H,ddd,J=15.0Hz,J=4.8Hz,J=2.3Hz, 3.47(1H,dd,J=18.0Hz,J=4.6Hz, 3.99(1H,m, 5.28(2H,s,−CO2CH2 Ph) 6.06(1H,brs,N) 7.39(5H,m,−Ph) IR υmax(CHCl3):cm-1 3450(NH)、2150(N2)、 1765(ラクタムC=O)、1720(エステルC=O)、16
50(N=C) 参考例3 実施例10の化合物を用い、参考例2と同様にして以下
の化合物(収率82.1%)を無色オイル状物として得た。
1 H-NMR (500 MHZ in CDCl 3 ) δ: 2.68 (1H, ddd, J = 15.0 Hz, J = 2.6 Hz, J = 1.2 Hz. 3.04 (1H, dd, J = 18.0Hz, J = 8.6Hz, 3.15 (1H, ddd, J = 15.0Hz, J = 4.8Hz, J = 2.3Hz, 3.47 (1H, dd, J = 18.0Hz, J = 4.6Hz, 3.99 (1H, m, 5.28 (2H, s, -CO 2 C H 2 Ph) 6.06 (1H, brs, N H) 7.39 (5H, m, - Ph) IR υmax (CHCl 3): cm -1 3450 (NH), 2150 (N 2 ), 1765 (lactam C = O), 1720 (ester C = O), 16
50 (N = C) Reference Example 3 The following compound (yield: 82.1%) was obtained as a colorless oil using the compound of Example 10 in the same manner as in Reference Example 2.

1H−NMR(CDCl3中、60MHZ)δ: 1.03(3H,t,J=7Hz,−CH2CH3 ) 1.28(3H,t,J=7Hz,−CO2CH2CH3 ) 1.72(2H,q,J=7Hz,−CO2CH2 CH3) 2.71(2H,m, 3.65(1H,m, 4.17(2H,q,J=7HZ,−CH2 CH3) 6.08(1H,bs,N−) IR υmax(CHCl3):cm-1 3450(NH)、1760(ラクタムC=O)1725(エステルC
=O)
1 H-NMR (60 MHZ in CDCl 3 ) δ: 1.03 (3H, t, J = 7 Hz, —CH 2 CH 3 ) 1.28 (3H, t, J = 7 Hz, —CO 2 CH 2 CH 3 ) 1.72 (2H, q, J = 7Hz , -CO 2 C H 2 CH 3) 2.71 (2H, m, 3.65 (1H, m, 4.17 (2H, q, J = 7HZ, -C H 2 CH 3) 6.08 (1H, bs, NH) IR υmax (CHCl 3): cm -1 3450 (NH), 1760 ( lactam C = O) 1725 (Ester C
= O)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】ハロゲン化亜鉛の存在下に、一般式 〔式中、R1は水素原子又は低級アルキル基を示す。R2
アミノ基の保護基を示す。R3はアリール基を示す。〕 で表わされる化合物と一般式 〔式中、R4、R5及びR6は夫々低級アルキル基を示す。R7
は低級アルコキシ基又は基 (式中、R8はカルボキシ基の保護基を示す。)を示
す。〕 で表わされる化合物とを反応させることを特徴とする、
一般式 〔式中、R1、R2及びR7は上記に同じ。〕 で表わされるカルバペネム系抗生物質合成中間体の製造
法。
(1) In the presence of a zinc halide, a compound represented by the general formula: [In the formula, R 1 represents a hydrogen atom or a lower alkyl group. R 2 represents a protecting group for an amino group. R 3 represents an aryl group. And a compound represented by the general formula: Wherein R 4 , R 5 and R 6 each represent a lower alkyl group. R 7
Is a lower alkoxy group or group (In the formula, R 8 represents a protecting group for a carboxy group.) Characterized by reacting with a compound represented by
General formula Wherein R 1 , R 2 and R 7 are the same as above. ] A method for producing a carbapenem antibiotic synthetic intermediate represented by the formula:
JP63227092A 1988-09-09 1988-09-09 Preparation of intermediates for the synthesis of carbapenem antibiotics Expired - Lifetime JP2649705B2 (en)

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