CA1190232A - Preparation de piroxican et produits intermediaires utilises a cette fin - Google Patents

Preparation de piroxican et produits intermediaires utilises a cette fin

Info

Publication number
CA1190232A
CA1190232A CA000464998A CA464998A CA1190232A CA 1190232 A CA1190232 A CA 1190232A CA 000464998 A CA000464998 A CA 000464998A CA 464998 A CA464998 A CA 464998A CA 1190232 A CA1190232 A CA 1190232A
Authority
CA
Canada
Prior art keywords
methyl
reaction
hydroxy
solvent
mole
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
CA000464998A
Other languages
English (en)
Inventor
Paul D. Weeks
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.)
Pfizer Inc
Original Assignee
Pfizer Inc
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
Priority claimed from US06/308,746 external-priority patent/US4376204A/en
Priority claimed from CA000412724A external-priority patent/CA1187873A/fr
Application filed by Pfizer Inc filed Critical Pfizer Inc
Application granted granted Critical
Publication of CA1190232A publication Critical patent/CA1190232A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CA000464998A 1981-10-05 1984-10-09 Preparation de piroxican et produits intermediaires utilises a cette fin Expired CA1190232A (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US06/308,746 US4376204A (en) 1981-10-05 1981-10-05 3-Hydroxy 2-methyl benzisothiazolines as intermediates in production of piroxicam
US308,746 1981-10-05
US41303682A 1982-09-02 1982-09-02
US413,036 1982-09-02
CA000412724A CA1187873A (fr) 1981-10-05 1982-10-04 Methode de preparation de piroxicam et produits intermediaires utilises a cette fin

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA000412724A Division CA1187873A (fr) 1981-10-05 1982-10-04 Methode de preparation de piroxicam et produits intermediaires utilises a cette fin

Publications (1)

Publication Number Publication Date
CA1190232A true CA1190232A (fr) 1985-07-09

Family

ID=27167290

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000464998A Expired CA1190232A (fr) 1981-10-05 1984-10-09 Preparation de piroxican et produits intermediaires utilises a cette fin

Country Status (1)

Country Link
CA (1) CA1190232A (fr)

Similar Documents

Publication Publication Date Title
CA1103246A (fr) Derives de la thiazine
CA1321791C (fr) Preparation d'acides oxophtalazinylacetiques et chaines laterales benzothiazole ou heterocycliques d'autres types
EP0049099B1 (fr) Intermédiaire et méthode de synthèse de piroxicam
CA1190232A (fr) Preparation de piroxican et produits intermediaires utilises a cette fin
CA1077934A (fr) Preparation du 1,1-dioxyde de l'acide 3,4-dihydro-2-methyl-4-oxo-2h-1,2-benzothiazine-3-carboxylique, et son emploi comme intermediaire
CA1143733A (fr) Obtention de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone, et de produits intermediaires
CA1187873A (fr) Methode de preparation de piroxicam et produits intermediaires utilises a cette fin
US4376204A (en) 3-Hydroxy 2-methyl benzisothiazolines as intermediates in production of piroxicam
US4483982A (en) Processes for preparing piroxicam and intermediates leading thereto
CA1142174A (fr) Methode d'obtention de derives de l'acide penicillanique
CA1063106A (fr) Pyrrolodiazepines a activite pharmacologique
US4952703A (en) Intermediates for making 2-oxindole-1-carboxamides
KR950009827B1 (ko) 벤조티아진 유도체
FI76571B (fi) Foerfarande foer framstaellning av mellanfoereningar laempliga vid framstaellning av piroxicam och i foerfarandet anvaendbara utgaongsmaterial.
SU793398A3 (ru) Способ получени производных тиазолина
US5086186A (en) N-trichloroacetyl-2-oxindole-1-carboxamides
US4683306A (en) Process for the preparation of 3,4-dihydro-2-substituted-2H-1,2-thiazine-carboxylic acid 1,1-dioxide derivatives
Malamas Facile synthesis of novel spiro [azetidine‐2, 4′(1′ H)‐isoquinoline‐1′, 3′, 4 (2′ H)‐triones]
US4921961A (en) 2-Carbamoyl-3-quinolinecarboxylic acids and salts as intermediates for the preparation of herbicidal 2-(5-isoproyl-5-methyl-4-oxo-2-imidazolin-2-yl)-3-quinolinecarboxylic acids
KR810000717B1 (ko) 이소퀴놀린 유도체의 제조방법
CA1181749A (fr) Procede de preparation du 2-methoxyethyl 4-hydroxy-2- methyl-2h-1,2-benzothiazine-3-carboxylate 1,1- dioxyde
CA1151648A (fr) Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires
CA1151659A (fr) Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires
NO157418B (no) Nytt benzotiazinderivat egnet for anvendelse ved fremstilling av piroxicam.
GB1567875A (en) Process for making 2-amino-4-hydroxyquinolines

Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry