GB929228A - Quinoxalino-[2, 3-b]-ú­-benzothiazine derivatives and their preparation - Google Patents

Quinoxalino-[2, 3-b]-ú­-benzothiazine derivatives and their preparation

Info

Publication number
GB929228A
GB929228A GB183260A GB183260A GB929228A GB 929228 A GB929228 A GB 929228A GB 183260 A GB183260 A GB 183260A GB 183260 A GB183260 A GB 183260A GB 929228 A GB929228 A GB 929228A
Authority
GB
United Kingdom
Prior art keywords
general formula
acid
quinoxalino
prepared
reacting
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.)
Expired
Application number
GB183260A
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.)
Novartis AG
Original Assignee
JR Geigy AG
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 JR Geigy AG filed Critical JR Geigy AG
Publication of GB929228A publication Critical patent/GB929228A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D513/00Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00
    • C07D513/02Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00 in which the condensed system contains two hetero rings
    • C07D513/04Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention comprises compounds of the general formula <FORM:0929228/IV(a)/1> or <FORM:0929228/IV(a)/2> (wherein Y represents a hydrogen or halogen atom, Z represents an alkylene radical having 2-6 carbon atoms of which 2-4 are in the direct chain between N and Am, and Am represents a C2-8 dialkylamino group wherein the two alkyl radicals can be bound to each other direct or through an oxygen atom) and their acid addition salts, and the preparation thereof (a) by reacting, in the presence of a basic condensing agent, an 11H-quinoxalino [2.3-b]-p-benzothiazine of the general formula <FORM:0929228/IV(a)/3> with a reactive ester of an aminoalcohol HO-Z-Am, and, if desired, converting the product into an addition salt with an inorganic or organic acid, or (b) reacting a reactive ester of a compound of the general formula <FORM:0929228/IV(a)/4> or <FORM:0929228/IV(a)/5> with a secondary amine Am-H, or (c) condensing an N-substituted o-aminothiophenol of the general formula <FORM:0929228/IV(a)/6> with 2,3-dichloroquinoxaline in the presence of an acid-binding agent. The products have anti-allergic, serotonin-antagonistic, anti-convulsive, adrenolytic, sedative and anaesthetic-potentiating activity. Halogen substituted 11H-quinoxalino [2,3-b]-p-benzothiazines (of the formula given in (a) above, Y representing a halogen atom, e.g. chlorine in the 3-position) are prepared by condensing a halogen substituted 2-aminothiophenol with 2,3-dichloroquinoxaline. Reactive esters used as starting materials in process (b) are prepared by reacting alkali metal compounds of 11H-quinoxalino [2,3-b]-p-benzothiazines of the general formula given in (a) above with alkylene oxides and reacting the resulting hydroxyalkyl derivatives with inorganic acid halides, methanesulphonic acid chloride or arylsulphonic acid chlorides. N-(g - Dimethylaminopropyl)- o-aminothiophenol is prepared by refluxing 3-dimethylaminopropylbenzothiazolone-2 with ethanolic caustic potash. 3- Dimethylaminopropylbenzothiazolone-2 is prepared by refluxing benzothiazolone-2 with dimethyaminopropyl chloride and sodamide in benzene.
GB183260A 1959-01-21 1960-01-19 Quinoxalino-[2, 3-b]-ú­-benzothiazine derivatives and their preparation Expired GB929228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6855659A CH370091A (en) 1959-01-21 1959-01-21 Process for the preparation of new heterocyclic compounds

Publications (1)

Publication Number Publication Date
GB929228A true GB929228A (en) 1963-06-19

Family

ID=4528830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB183260A Expired GB929228A (en) 1959-01-21 1960-01-19 Quinoxalino-[2, 3-b]-ú­-benzothiazine derivatives and their preparation

Country Status (2)

Country Link
CH (1) CH370091A (en)
GB (1) GB929228A (en)

Also Published As

Publication number Publication date
CH370091A (en) 1963-06-30

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