JPS58192874A - Novel spiroisoxazoline derivative - Google Patents

Novel spiroisoxazoline derivative

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Publication number
JPS58192874A
JPS58192874A JP7340882A JP7340882A JPS58192874A JP S58192874 A JPS58192874 A JP S58192874A JP 7340882 A JP7340882 A JP 7340882A JP 7340882 A JP7340882 A JP 7340882A JP S58192874 A JPS58192874 A JP S58192874A
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JP
Japan
Prior art keywords
compound
formula
derivative
carboxylic acid
ester
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
JP7340882A
Other languages
Japanese (ja)
Inventor
Ikuo Matsumoto
郁男 松本
Yoshio Sawazaki
沢崎 芳男
Akira Nishioka
亮 西岡
Akira Okura
大倉 彬
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MSD KK
Original Assignee
Banyu Phamaceutical Co Ltd
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Priority to JP7340882A priority Critical patent/JPS58192874A/en
Publication of JPS58192874A publication Critical patent/JPS58192874A/en
Pending legal-status Critical Current

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  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
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Abstract

NEW MATERIAL:The compound of formula I (R<1> and R<2> are H or halogen). EXAMPLE:7, 9-Dibromo-8-oxo-1-oxa-2-azaspiro[4,5]deca-2, 6, 9-triene-3-carboxylic acid. USE:Carcinostatic agent and its intermediate. PROCESS:The compound of formula I can be prepared by the oxidative cyclization reaction of the pyruvic acid oxime of formula II with a mild oxidizing agent such as halogen, organic halogen compound, etc. at -30-+30 deg.C for several minutes - several hours.

Description

【発明の詳細な説明】 本発明は式 〔式中H1,Haは同じくまたは異なって水素原子もし
くはハロゲンを示す〕 で表わされる新規なスピロイソキサゾリン誘導体または
その塩に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel spiroisoxazoline derivative or a salt thereof represented by the formula [wherein H1 and Ha are the same or different and represent a hydrogen atom or a halogen].

この化合物(1)は価値ある薬理活性、特に制癌作用を
有する(後記試験側参照)。
This compound (1) has valuable pharmacological activity, particularly anticancer activity (see test section below).

本発明化合物(1)は特異な骨格であるスピロイソキサ
ゾリン環構造を有するカルボン酸であり、。
The compound (1) of the present invention is a carboxylic acid having a unique skeleton, a spiroisoxazoline ring structure.

従来この類縁の誘導体として式(1)のR1、Haが共
に水素原子または臭素である二種のカルボン酸のメチル
エステル体が知られている( J、 Ohem 。
Conventionally, methyl esters of two types of carboxylic acids in which R1 and Ha in formula (1) are both hydrogen atoms or bromine have been known as derivatives of this type (J, Ohem).

Eloc、、 Chem、 Commun、 1973
年、604頁; Tet−rahedron Lett
、  1981年、 3247頁)。
Eloc, Chem, Commun, 1973
Year, 604 pages; Tet-rahedron Lett
, 1981, p. 3247).

しかしこのスピロイソキサゾリン骨格は不安定であ抄、
簡便な合成法もないことから、これらメチルエステル体
の近縁の誘導体を得ることは意外に困難である。  こ
のため上記のメチルエステル体と近縁の誘導体9例えば
本発明のカルボン酸(夏)あるいはそのアミドなどにつ
いては従来全く報告がなく、ましてそれらの化合物の有
用性などについては何ら明らかにされていない。
However, this spiroisoxazoline skeleton is unstable and
Since there is no convenient synthetic method, it is surprisingly difficult to obtain derivatives closely related to these methyl esters. For this reason, there have been no reports on derivatives 9 closely related to the above-mentioned methyl esters, such as the carboxylic acid (summer) of the present invention or its amide, and even less the usefulness of these compounds has not been clarified. .

今回本発明者らはこの関連の化合物の合成を検討し、こ
の種の誘導体としては初めて式(【)のカルボン酸の合
成に成功した。  加えて本発明者らは、この化合物(
])が強力々制癌活性を有すること、また同様な制癌活
性を有するアミドなどの近縁の誘導体に容易に変換し得
る有用な中間体でもあることを発見し本発明を完成した
The present inventors investigated the synthesis of compounds related to this, and succeeded in synthesizing a carboxylic acid of the formula ([) for the first time as a derivative of this type. In addition, the present inventors discovered that this compound (
]) has a strong anticancer activity, and has also been found to be a useful intermediate that can be easily converted into closely related derivatives such as amides that have similar anticancer activity, thereby completing the present invention.

本発明化合物(1)は9例えば下記の式(11)で示さ
れるピルビン酸オキシム誘導体を原料に、その酸化的閉
環反応により製造される。  また別法として、同じ式
(It)のピルビン酸オキンムをいったんエステル化し
て保護した後酸化閉環し。
The compound (1) of the present invention is produced by oxidative ring closure reaction using a pyruvate oxime derivative represented by the following formula (11) as a raw material. As another method, pyruvic acid oxime of the same formula (It) is once esterified and protected, and then oxidized and ring-closed.

次いでこれを脱エステル化する方法もある。There is also a method in which this is then deesterified.

R″′ 〔式中H1,R2は前記と同じ意味を有する〕この際使
用される原料化合物(II)はR1,R2が共に水素原
子あるいけ臭素のものVこついては文献の記載があり、
その製法も公知である( J、 Ch−am、 13o
c、、 Perkin trans、  l、 197
2年、 2340頁)。  すなわちこの化合物(If
)は f<1.R2で置換されたp−ヒドロキンペンツ
アルデヒドを出発原料に、N−アセチルグリンンまだは
馬尿酸によるアズラクトン化後、酸性加水分解によリヒ
ルビノ酸とし2次いでこれをオキシム化スる工程により
製造される。   また場合により必要なるこの化合物
(lI)のエステル化は、適宜常法により容易に行なう
ことができ、その方法の一部は上記の文献にも記載され
ている。
R''' [In the formula, H1 and R2 have the same meanings as above] The raw material compound (II) used at this time is one in which R1 and R2 are both hydrogen atoms or bromine.
Its manufacturing method is also known (J, Ch-am, 13o
c, Perkin trans, l, 197
2 years, 2340 pages). That is, this compound (If
) is f<1. Using R2-substituted p-hydroquinpentaldehyde as a starting material, N-acetylgrin is produced by azlactonization with hippuric acid, followed by acidic hydrolysis to form lihirubinoic acid, and then converting this into oxime. Ru. Further, the esterification of compound (lI), which may be necessary depending on the case, can be easily carried out by an appropriate conventional method, and some of the methods are also described in the above-mentioned literature.

本発明化合物(1)を得るにあたり1式(ff)のピル
ビン酸オ干ンム誘導体を直接酸化閉環する場合は、生成
物(1)が不安定なため酸化剤の選択が重要である。 
  一般に緩和な酸化剤、特には塩素、臭素、もしくは
ヨウ素などのハロゲン、あるいはN−ブロムコハク酸イ
ミドなどの有機ハロゲノ化合物の使用が好結果を与える
。   酸化剤にハロケンを使用する場合はベンゼン環
の・・ロゲン化も同時に行なうことができ、その際には
出発1東料([)のB2 R11の水素原子が、使用し
たハロゲンで置換された化合物が得られる。
When the pyruvate derivative of formula 1 (ff) is directly oxidized and ring-closed to obtain the compound (1) of the present invention, the selection of the oxidizing agent is important because the product (1) is unstable.
Generally, the use of mild oxidizing agents, particularly halogens such as chlorine, bromine, or iodine, or organohalogen compounds such as N-bromosuccinimide, gives good results. When halogenation is used as an oxidizing agent, the benzene ring can be halogenated at the same time, and in this case, a compound in which the hydrogen atom of B2 R11 of starting 1 Toryo ([) is replaced with the halogen used. is obtained.

使用される酸化剤の量は、ベンゼン環のハロゲン化など
を考慮しない場合は原料化合物(It)に対し1〜3当
量が適当である。  反応は生成物の不安定さを考慮し
て1通常−30°〜30°Cの低温下、数分〜数時間の
反応時間で実施される。
The appropriate amount of the oxidizing agent to be used is 1 to 3 equivalents relative to the starting compound (It), unless halogenation of the benzene ring is taken into account. Considering the instability of the product, the reaction is usually carried out at a low temperature of -30° to 30°C for a reaction time of several minutes to several hours.

まだ反応液中の液性は酸性乃至中性が好ましい。The liquid in the reaction solution is preferably acidic or neutral.

反応溶媒は反応に関与するものでなければ特に限定はな
く1例えばメタノール、エタノール。
The reaction solvent is not particularly limited as long as it does not participate in the reaction, and examples include methanol and ethanol.

クロロホルム、[化メチレン、テトラヒドロフラン、酢
酸エチル、べ/ゼン、アセトニトリルなどの汎用の有機
溶剤、あるいはそれらと水との混合溶媒が使用される。
Common organic solvents such as chloroform, methylene chloride, tetrahydrofuran, ethyl acetate, benzene, acetonitrile, or a mixed solvent of these and water are used.

なお本発明者らは式(II)のカルボン酸を上記の反応
条件下で酸化閉環する際、目的のスピロインキサシリ/
体(1)の他に新規なβ−ラクタム誘導体である式(1
)の化合物が一生することを発見した。
In addition, when the present inventors oxidatively ring-close the carboxylic acid of formula (II) under the above reaction conditions, the target spiroinxasilyl/
In addition to formula (1), the novel β-lactam derivative formula (1)
) was found to last a lifetime.

p′ 〔式中R1,R2は前記と同じ意味を有する〕この化合
物(1)は制癌活性などの有用な薬理作用を持ち、その
特異な化学構造と相まって興味ある化合物である。
p' [In the formula, R1 and R2 have the same meanings as above] This compound (1) has useful pharmacological actions such as anticancer activity, and in combination with its unique chemical structure, it is an interesting compound.

次に、化合物(n)のエステル中間体を経由する製法で
あるが、この方法は各種の酸化剤の使用が可断となり、
広範な反応条件下に酸化閉環を実施し得る点で利点があ
る。   しかし本反応により得られる式(1)のエス
テル体もまた安定性には若干欠けるところがあり、その
点ハロゲンもしくはマンガネーセトリスアセチルアセト
ネ−トなどによる酸化、あるいは電解酸化などの緩和な
条件下による閉環が好筐しく行われる。
Next, there is a manufacturing method using an ester intermediate of compound (n), but this method requires the use of various oxidizing agents,
An advantage is that oxidative ring closure can be carried out under a wide range of reaction conditions. However, the ester of formula (1) obtained by this reaction also has a slight lack of stability, and is subject to oxidation with halogen or manganecetris acetylacetonate, or under mild conditions such as electrolytic oxidation. The ring closure is performed well.

上記のエステル体を経由する製法では酸化閉環についで
エステル基の加水分解が必要となる。
The above-mentioned production method via an ester requires hydrolysis of the ester group following oxidative ring closure.

エステルがメチルエステルなどの低級アルキルエステル
の場合、一般にこのエステルの水解は少過剰の苛性アル
カリの存在下、0〜5Cの低温で実施される。   し
かし前記したように目的のカルボン酸(1)は酸性およ
び塩基性のいずれの条件下においても不安定な化合物で
あり、このエステルの氷解はかなり困難な反応である、
しかしながらこの難点は、原料である式(It)のカル
ボン酸のエステル保護基に容易に脱離し得るエステル基
を選択することで解決される。
When the ester is a lower alkyl ester such as a methyl ester, hydrolysis of the ester is generally carried out in the presence of a small excess of caustic at a low temperature of 0 to 5C. However, as mentioned above, the target carboxylic acid (1) is an unstable compound under both acidic and basic conditions, and deicing this ester is a rather difficult reaction.
However, this difficulty can be solved by selecting an ester group that can be easily eliminated as an ester protecting group of the starting carboxylic acid of formula (It).

この容易に脱離し得るエステル基の例としてはトリアル
キルシリル、  tert−ブチル、ペンツヒドリル、
トリクロロエチル、メトキンメチル。
Examples of easily removable ester groups include trialkylsilyl, tert-butyl, penthydryl,
Trichloroethyl, metquin methyl.

ベンゾイルメチル、p−ニトロベンジルなどの基を挙げ
ることができる。   これらエステル基の分解は反応
に関与しない溶媒中、普通によく知られた弱酸性または
弱塩基性の条件下に容易に実施することができる。
Mention may be made of groups such as benzoylmethyl and p-nitrobenzyl. Decomposition of these ester groups can be easily carried out under commonly known weakly acidic or slightly basic conditions in a solvent that does not participate in the reaction.

このようにして得られ九本発明化合物(1)は常法に従
って、溶媒抽出法、再結晶法、あるいはカラムクロマト
グラフィー等の通常の分離手段により容易に単離nI農
することができる。
The compound (1) of the present invention thus obtained can be easily isolated by conventional separation methods such as solvent extraction, recrystallization, or column chromatography.

またこの化合物(1)はカルボン酸であり1例えばナト
リウム塩、カリウム塩、カルシウム塩。
Moreover, this compound (1) is a carboxylic acid, such as sodium salt, potassium salt, or calcium salt.

トリエチルアミン塩などの塩類を形成することができ1
本発明はこれらの塩類を包含する。
Can form salts such as triethylamine salt1
The present invention includes these salts.

ところで本発明のカルボン酸(1)はそれ自身制癌活性
を持つ有用な物質であるが、さらにまた同じ〈制癌作用
を持つ、下記のアミド誘導体(5)を合成するだめの有
用な中間体ともなる。
By the way, the carboxylic acid (1) of the present invention is itself a useful substance that has anticancer activity, but it is also a useful intermediate for synthesizing the following amide derivative (5) that has the same anticancer activity. It also becomes.

R′ 〔R1,R2は前記と同じ意味を有し R3、R4は同
じくまたは異なって水素原子、低級アルキル基もしくは
置換基を有して本よいフェニル基を示す〕 すなわち本発明のカルボン酸(1)は容易にカルホキフ
ル基の活性化を行なうことができ、またその反応性誘導
体はアミ/と反応してアミド(V)を与える。   こ
のアミド誘導体■は1通常よく行なわれる式(1)のエ
ステル体のアミツリメスでは合成が困難な化合物であり
、この点からも本発明化合物(1)は合成中間体として
非常に有用な化合物である。
R' [R1 and R2 have the same meanings as above, and R3 and R4 are the same or different and represent a phenyl group having a hydrogen atom, a lower alkyl group, or a substituent] That is, the carboxylic acid (1 ) can easily activate the carphokyfur group, and its reactive derivative reacts with ami/ to give amide (V). This amide derivative (1) is a compound that is difficult to synthesize using the commonly used ester Amiturimes of formula (1), and from this point of view as well, the compound (1) of the present invention is a very useful compound as a synthetic intermediate. .

以下に実施例および試験例を挙げ9本発明を具体的に説
明する。
EXAMPLES The present invention will be specifically explained below with reference to Examples and Test Examples.

実施例1 35−ジブロモ−4−ヒドロキノフエ2ルビルピン酸オ
キシム5.00 ’ tを酢酸エチル1001B/と水
100−の混液に溶解し、水冷攪拌上臭素1.82−を
加えて1時間攪拌する。  反応終了後酢酸ナトリウム
5.9Ofを加えて過剰の臭素を分解し、有機層を分取
する。  有機層を2%炭酸水素ナトリウム水溶液で抽
出し、水着を分取後2N塩酸でpH1,0に調整すれば
生成物が沈殿する。   沈殿を戸取し、含水メタノー
ルから再結晶すれば7.9−ジブロモ−8−オキソ−1
−オキサ−2−アザスピロ〔4,5〕デカ−2,6゜9
−トリエン−3−カルボン酸(化合ml)が融点177
−178 c (分解点)の白色針状結晶として得られ
る。  収量1.29r。
Example 1 5.00 t of 35-dibromo-4-hydroquinophene 2-rubirupic acid oxime is dissolved in a mixture of 100 1B of ethyl acetate and 100% of water, and 1.82B of bromine is added and stirred for 1 hour while cooling with water. After the reaction is complete, 5.9 Of sodium acetate is added to decompose excess bromine, and the organic layer is separated. The organic layer is extracted with a 2% aqueous sodium bicarbonate solution, and the swimsuit is separated and adjusted to pH 1.0 with 2N hydrochloric acid to precipitate the product. If the precipitate is collected and recrystallized from aqueous methanol, 7.9-dibromo-8-oxo-1 is obtained.
-oxa-2-azaspiro[4,5]deca-2,6゜9
-triene-3-carboxylic acid (compound ml) has a melting point of 177
Obtained as white needle-like crystals with -178 c (decomposition point). Yield 1.29r.

IRスペクトル ν、。cm 3050、2900.1’105.16B0.1605
.1600゜1460、1430.133!>、 13
05.1270.1150゜010 UV −ペク ル λMeOHnm 257 (g =140651 NMRスペクトル (DM80−delδ:3.50(
2H,el、 7.73(2H,S )壕だ上記の酢酸
エチル層を減圧下に溶媒留去し、残査を含水メタノール
から再結晶すると副生成物の6.8−ジブロモ−2,7
−シオキソー1−アザスピロC” + ” ]]ノナー
5,8−ジエが融点163−165tl’ (分解点)
の白色針状結晶として得られる。   収t 120V
 O IRスペクトルW K”ram1 3300.3050 、2920.2850.1’/8
0.1680゜1600  1430 1420 13
15 12’75 12501160、1140.10
75.1020.1000UVスペクトル λMeOH
nm 257(ε二107601 NMRスペクトル (DMSO−de lδ: 3.1
8(2H,91,’7.18(2H,S l 。
IR spectrum ν,. cm 3050, 2900.1'105.16B0.1605
.. 1600°1460, 1430.133! >, 13
05.1270.1150゜010 UV-Peckle λMeOHnm 257 (g = 140651 NMR spectrum (DM80-delδ: 3.50(
2H,el, 7.73(2H,S) The solvent from the above ethyl acetate layer was distilled off under reduced pressure, and the residue was recrystallized from aqueous methanol to obtain the by-product 6,8-dibromo-2,7.
-Shioxo 1-AzaspiroC'' + '' ]] Nonar 5,8-die has a melting point of 163-165 tl' (decomposition point)
Obtained as white needle-like crystals. Power consumption 120V
O IR spectrum W K"ram1 3300.3050, 2920.2850.1'/8
0.1680°1600 1430 1420 13
15 12'75 12501160, 1140.10
75.1020.1000UV spectrum λMeOH
nm 257 (ε2 107601 NMR spectrum (DMSO-delδ: 3.1
8(2H,91,'7.18(2H,S l.

12.86 (IH、81 実施例2 3.5−ジブロモ−4−ヒドロキシフェニルピルビン酸
オキシム2.0Ofをテトラヒドロフラノ3o−に溶解
し、水冷攪拌下にN−ブロモコノ・り酸イミド1.06
Fを加えて一時間攪拌する。
12.86 (IH, 81 Example 2 2.0Of 3.5-dibromo-4-hydroxyphenylpyruvate oxime was dissolved in tetrahydrofurano 3o-, and 1.06Of N-bromoconophosphate imide was dissolved under stirring under water cooling.
Add F and stir for 1 hour.

反応終了後反応液を飽和食塩水で洗浄し、減圧下にテト
ラヒドロフランを留去後、残査をベンゼンで洗浄する。
After the reaction is completed, the reaction solution is washed with saturated brine, tetrahydrofuran is distilled off under reduced pressure, and the residue is washed with benzene.

  不溶物を酢酸エチルに浴解後、2%炭酸水素ナトリ
ウム水溶液で抽出し。
After dissolving the insoluble matter in ethyl acetate, the mixture was extracted with a 2% aqueous sodium hydrogen carbonate solution.

水層を上記の方法と同様に処理すれば実施例1で得られ
たカルボン酸(化合物l)が得られる。
If the aqueous layer is treated in the same manner as above, the carboxylic acid obtained in Example 1 (compound 1) is obtained.

収量Q、243F。Yield Q, 243F.

実施例3 7.9−ジブロモ−8−オキノー1−オキサ−2−アザ
スピロ〔4+5〕デカ−2,6,9−トリエン−3−カ
ルボン酸メチルエステル0.50rヲデトラヒド口フラ
/8−に溶解し、水冷攪拌下IN水酸化ナトl)ラム水
溶液2−を加えて2時間攪拌する。  反応終了後、飽
和食塩水10dを加えて分液し、水層を分取後6N!酸
を加えてpH1,0に調整する。  生成した沈殿を戸
取し、含水メタノールから再結晶すると実施例1で′得
られたカルボン酸(化合物1)が得られる。  収量0
.023F。
Example 3 7.9-dibromo-8-oquino-1-oxa-2-azaspiro[4+5]deca-2,6,9-triene-3-carboxylic acid methyl ester dissolved in 0.50 rwodetrahydrofura/8- , Add IN sodium hydroxide solution 2- under water-cooling and stirring, and stir for 2 hours. After the reaction is complete, add 10 d of saturated brine to separate the layers, separate the aqueous layer, and then 6N! Add acid to adjust pH to 1.0. The produced precipitate is collected and recrystallized from aqueous methanol to obtain the carboxylic acid (compound 1) obtained in Example 1. Yield 0
.. 023F.

試験例:化合物lの制癌活性 エールリッヒ腹水癌10’個を、工CRマウス(雌性、
6週令、1群5匹)の腹腔内に移植した。  被検物質
(化合物1)は、0.3%カカルキ/メチルセルロース
ナトリウム塩水溶液(CMC溶液)に懸濁し、この懸濁
液をo、x−/4o yの割合で、移植翌日より1日1
回連続10日間腹腔内に投与した。  対照群には、 
0.3% CMC溶液のみを治療群と同様に腹腔内投与
した。
Test example: Anticancer activity of compound 1 10 Ehrlich ascites carcinomas were tested in engineered CR mice (female,
The cells were implanted intraperitoneally into 6-week-old animals (5 animals per group). The test substance (compound 1) was suspended in a 0.3% Kakalki/methylcellulose sodium salt aqueous solution (CMC solution), and this suspension was administered at a ratio of o, x-/4o y once a day from the day after transplantation.
The drug was administered intraperitoneally for 10 consecutive days. The control group included
Only 0.3% CMC solution was administered intraperitoneally as in the treatment group.

移植後30日間観察を行ない延命率(ffi、m:、 
×100 )を調べた。
Observation was carried out for 30 days after transplantation, and survival rate (ffi, m:,
×100) was investigated.

表に示した如く5〜20W/Kyの投与範囲内で。Within the dosage range of 5-20 W/Ky as shown in the table.

用量依存性の顕著な延命効果を認めた。A significant dose-dependent survival effect was observed.

Claims (1)

【特許請求の範囲】 式 〔式中R,Rは同じくま大は異なって水素原子もしくは
ハロゲンを示す〕 で表わされるスピロインキサシリン誘導体またはその塩
[Scope of Claims] A spiroin xacillin derivative or a salt thereof represented by the formula [wherein R and R are the same or different and represent a hydrogen atom or a halogen].
JP7340882A 1982-05-04 1982-05-04 Novel spiroisoxazoline derivative Pending JPS58192874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7340882A JPS58192874A (en) 1982-05-04 1982-05-04 Novel spiroisoxazoline derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7340882A JPS58192874A (en) 1982-05-04 1982-05-04 Novel spiroisoxazoline derivative

Publications (1)

Publication Number Publication Date
JPS58192874A true JPS58192874A (en) 1983-11-10

Family

ID=13517333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7340882A Pending JPS58192874A (en) 1982-05-04 1982-05-04 Novel spiroisoxazoline derivative

Country Status (1)

Country Link
JP (1) JPS58192874A (en)

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KR20190082673A (en) * 2018-01-02 2019-07-10 기초과학연구원 Novel metal complex, process for producing the same, and method for producing γ-lactam compound using the same
WO2019135604A1 (en) * 2018-01-02 2019-07-11 기초과학연구원 Method for producing lactam compound, and lactam compound produced thereby
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190082673A (en) * 2018-01-02 2019-07-10 기초과학연구원 Novel metal complex, process for producing the same, and method for producing γ-lactam compound using the same
WO2019135604A1 (en) * 2018-01-02 2019-07-11 기초과학연구원 Method for producing lactam compound, and lactam compound produced thereby
CN111587239A (en) * 2018-01-02 2020-08-25 基础科学研究院 Method for producing lactam compound and lactam compound produced by same
AU2019205884B2 (en) * 2018-01-02 2021-04-08 Institute For Basic Science Method for producing lactam compound, and lactam compound produced thereby
US11046661B2 (en) 2018-01-02 2021-06-29 Institute For Basic Science Method for producing lactam compound, and lactam compound produced thereby
US11344872B2 (en) 2018-01-02 2022-05-31 Institute For Basic Science Metal complex, method for producing same, and method for producing gamma-lactam compound using same
CN111587239B (en) * 2018-01-02 2024-04-02 基础科学研究院 Method for producing lactam compound and lactam compound produced by the method
US11998901B2 (en) 2018-01-02 2024-06-04 Institute For Basic Science Metal complex, method for producing same, and method for producing gamma-lactam compound using same

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