KR870010038A - Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives - Google Patents

Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives Download PDF

Info

Publication number
KR870010038A
KR870010038A KR1019860003336A KR860003336A KR870010038A KR 870010038 A KR870010038 A KR 870010038A KR 1019860003336 A KR1019860003336 A KR 1019860003336A KR 860003336 A KR860003336 A KR 860003336A KR 870010038 A KR870010038 A KR 870010038A
Authority
KR
South Korea
Prior art keywords
compound
general formula
acid
following general
formula
Prior art date
Application number
KR1019860003336A
Other languages
Korean (ko)
Inventor
고문규
신재무
강재효
김관성
Original Assignee
우대규
한일약품공업주식회사
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 우대규, 한일약품공업주식회사 filed Critical 우대규
Priority to KR1019860003336A priority Critical patent/KR870010038A/en
Publication of KR870010038A publication Critical patent/KR870010038A/en

Links

Landscapes

  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

내용 없음No content

Description

4-옥소-3-퀴놀린카르복실산 및 그 유도체의 제조방법Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (5)

다음 일반식(Ⅱ)의 멜드럼산과 오르토포름산트리알킬 에스테르 또는 디메틸포름아미드의 디알킬 아세탈과 반응시켜 다음 일반식(Ⅲ)의 화합물을 제조한 다음, 이를 다음 일반식(Ⅳ)의 화합물과 반응시켜서 다음 일반식(Ⅴ)의 화합물을 제조하고, 이를 적당한 용매하에서 산촉매를 사용하여 고리화하여 다음 일반식(Ⅵ)의 화합물을 제조한 후, 이 화합물(Ⅵ)에 피페라진을 반응시켜서 함을 특징으로 하는 일반식(Ⅰ)로 표시되는 화합물의 제조방법.Next, a compound of the following general formula (III) is prepared by reacting a meldmic acid of the general formula (II) with an ortho formic acid trialkyl ester or a dialkyl acetal of dimethylformamide to prepare a compound of the following general formula (III). To prepare a compound of formula (V), which was then cyclized using an acid catalyst in a suitable solvent to prepare a compound of formula (VI), and then reacted with piperazine by compound (VI). The manufacturing method of the compound represented by general formula (I) characterized by the above-mentioned. (상기식에서 R1은 메틸, 에틸과 같은 저급알킬기이고; X와 Y는 염소, 브롬, 불소와 같은 할로겐원자를 나타내고, Z는 메톡시, 에톡시, 디메틸아미노기를 나타낸다.)(Wherein R 1 is a lower alkyl group such as methyl and ethyl; X and Y represent halogen atoms such as chlorine, bromine and fluorine, and Z represents a methoxy, ethoxy and dimethylamino group.) 다음 일반식(Ⅲ)의 5-위치가 메틸렌기로 치환된 멜드럼산과 다음 일반식(Ⅳ)의 디할로겐노아닐린을 반응시켜서 함을 특징으로 하는 다음 일반식(Ⅴ)으로 표시되는 화합물의 제조방법.Method for producing a compound represented by the following general formula (V), characterized by reacting the 5-position of the general formula (III) with a methylene group substituted with methylene group and dihalogenoaniline of the following general formula (IV) . (상기식에서, R,X,Y 와 X는 진술한 바와 같다)(Wherein R, X, Y and X are as stated) 제2항에 있어서, X가 불소이고, Y가 염소이고, R이 에틸기임을 특징으로하는 화합물의 제조방법.The process for producing a compound according to claim 2, wherein X is fluorine, Y is chlorine, and R is an ethyl group. 다음 일반식(Ⅴ)의 화합물을 적당한 산촉매를 사용하여 고리화시켜서 함을 특징으로 하는 다음 일반식(Ⅵ)으로 표시되는 화합물의 제조방법.A process for preparing a compound represented by the following general formula (VI), wherein the compound of formula (V) is cyclized using a suitable acid catalyst. (상기식에서, R1, X와 Y는 전술한 바와 같다)(Wherein R 1 , X and Y are as described above) 제4항에 있어서, 산촉매가 황산, 클로로술폰산과 같은 강산과 삼플루오르화 붕산-에틸에테르, 사염화티탄과 같은 루이스산임을 특징으로 하는 제조방법.5. A process according to claim 4, wherein the acid catalyst is sulfuric acid, a strong acid such as chlorosulfonic acid, and a Lewis acid such as boric acid trifluoride-ethyl ether, titanium tetrachloride. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860003336A 1986-04-29 1986-04-29 Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives KR870010038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019860003336A KR870010038A (en) 1986-04-29 1986-04-29 Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019860003336A KR870010038A (en) 1986-04-29 1986-04-29 Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives

Publications (1)

Publication Number Publication Date
KR870010038A true KR870010038A (en) 1987-11-30

Family

ID=72896417

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860003336A KR870010038A (en) 1986-04-29 1986-04-29 Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives

Country Status (1)

Country Link
KR (1) KR870010038A (en)

Similar Documents

Publication Publication Date Title
KR850006391A (en) Method for preparing benzothiazol and benzothiophene derivatives
KR860003206A (en) Method for preparing benzoyl phenylurea
KR830010060A (en) Preparation of Sulfonate Derivatives
KR830007514A (en) Process for preparing bicyclic compound
KR830007686A (en) Method for preparing cephalosporin derivative
KR850001746A (en) Process for preparing quinazoline compound
KR890011904A (en) Synthesis of 6-methylene derivative of androstar-1,4, -diene-3,17-dione
KR860009021A (en) Method for preparing thieno (2,3-d) imidazole derivatives
KR860008135A (en) Process for producing amino ketone derivatives
KR900016171A (en) Method for preparing 1,5-benzothiazepine derivative
KR880701233A (en) New biphenyl derivatives and methods for their preparation and uses
KR830004263A (en) Method for preparing pyridine and pyrimidine, novel anti-inflammatory and immunomodulators
KR870010038A (en) Method for preparing 4-oxo-3-quinolinecarboxylic acid and its derivatives
KR860001814A (en) Method for preparing imidazo [1.2-a] quinoline derivative
KR840006334A (en) Method for preparing sulfamoyl benzophenone derivative
KR830006259A (en) Preparation of 2-arylpropyl ether derivatives and thioether derivatives, insecticides and acaricides
KR910011845A (en) Method for preparing 2-furylpyrimidine derivative
KR870002118A (en) Benzylamine derivatives and preparation method
KR870004982A (en) Method for preparing piperazine derivatives
KR850006428A (en) Method for preparing erythromycin acetate
ATE75468T1 (en) SUBSTITUTED 3-AMINOSYDNONIMINES, PROCESSES FOR THEIR PREPARATION AND THEIR USE.
KR850004583A (en) Method for preparing phenylacetanilide derivative
KR950014105A (en) Method for preparing azole derivatives
KR860009016A (en) Method for producing an antivirus compound
KR880000418A (en) Method for preparing 4-substituted-2-mercapto-benzothiazole derivatives

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
SUBM Submission of document of abandonment before or after decision of registration