BE900758A - PROCESS FOR THE PREPARATION OF A DIOXIDE BENZOTHIADIAZINE AND INTERMEDIATE SUITABLE FOR ITS PREPARATION. - Google Patents

PROCESS FOR THE PREPARATION OF A DIOXIDE BENZOTHIADIAZINE AND INTERMEDIATE SUITABLE FOR ITS PREPARATION.

Info

Publication number
BE900758A
BE900758A BE0/213782A BE213782A BE900758A BE 900758 A BE900758 A BE 900758A BE 0/213782 A BE0/213782 A BE 0/213782A BE 213782 A BE213782 A BE 213782A BE 900758 A BE900758 A BE 900758A
Authority
BE
Belgium
Prior art keywords
preparation
dioxide
benzothiadiazine
formula
intermediate suitable
Prior art date
Application number
BE0/213782A
Other languages
French (fr)
Inventor
P J Kairisalo
E J Honkanen
M E V Johansson
M Karhu
P T Nore
A K Pippuri
I R H Kurimo
Original Assignee
Orion Yhtymae Oy
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 Orion Yhtymae Oy filed Critical Orion Yhtymae Oy
Publication of BE900758A publication Critical patent/BE900758A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D279/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms
    • C07D279/02—1,2-Thiazines; Hydrogenated 1,2-thiazines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)

Abstract

Procédé de préparation du 2-méthyl-4-hydroxy-2H-1,2-benzothiazine-1,1-dioxyde-3-(N-2-pyridyl) répondant à la formule (I) suivant lequel on fait réagir l'acide 2-méthyl-4-mésoloxy-2H-1,2-benzo--thiazine-1,1-dioxyde-3-carboxylique de la formule (II) sur la 2-aminopyridine en présence de chlorure de thionyle dans un solvant. L'invention concerne aussi le composé de formule (II).Process for the preparation of 2-methyl-4-hydroxy-2H-1,2-benzothiazine-1,1-dioxide-3- (N-2-pyridyl) corresponding to formula (I) according to which the acid is reacted 2-methyl-4-mesoloxy-2H-1,2-benzo-thiazine-1,1-dioxide-3-carboxylic acid of formula (II) on 2-aminopyridine in the presence of thionyl chloride in a solvent. The invention also relates to the compound of formula (II).

BE0/213782A 1983-10-06 1984-10-05 PROCESS FOR THE PREPARATION OF A DIOXIDE BENZOTHIADIAZINE AND INTERMEDIATE SUITABLE FOR ITS PREPARATION. BE900758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI833628A FI72317C (en) 1983-10-06 1983-10-06 PROCEDURE FOR THE FRAMEWORK OF PHARMACEUTICALS 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-1,1-DIOXIDE -3- (N-2-PYRIDYL)-CARBOXAMIDE

Publications (1)

Publication Number Publication Date
BE900758A true BE900758A (en) 1985-02-01

Family

ID=8517867

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/213782A BE900758A (en) 1983-10-06 1984-10-05 PROCESS FOR THE PREPARATION OF A DIOXIDE BENZOTHIADIAZINE AND INTERMEDIATE SUITABLE FOR ITS PREPARATION.

Country Status (16)

Country Link
AT (1) AT387775B (en)
BE (1) BE900758A (en)
CA (1) CA1246066A (en)
CS (1) CS253593B2 (en)
DD (1) DD224594A5 (en)
DK (1) DK154504C (en)
ES (1) ES536544A0 (en)
FI (1) FI72317C (en)
HU (2) HU195493B (en)
IT (1) IT1218850B (en)
NO (1) NO159275C (en)
PL (1) PL143957B1 (en)
PT (1) PT79326B (en)
SE (2) SE460789B (en)
SU (1) SU1405703A3 (en)
YU (2) YU43381B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289879A (en) * 1980-09-29 1981-09-15 Pfizer Inc. Synthetic method and intermediate for piroxicam
JPH08270888A (en) * 1995-03-30 1996-10-15 Nec Eng Ltd Heat insulating engagement mechanism

Also Published As

Publication number Publication date
FI72317B (en) 1987-01-30
YU43381B (en) 1989-06-30
DD224594A5 (en) 1985-07-10
CA1246066A (en) 1988-12-06
AT387775B (en) 1989-03-10
HUT37427A (en) 1985-12-28
DK471284D0 (en) 1984-10-02
SU1405703A3 (en) 1988-06-23
FI833628A0 (en) 1983-10-06
SE460789B (en) 1989-11-20
NO159275C (en) 1988-12-14
DK471284A (en) 1985-04-07
SE8900248L (en) 1989-01-24
YU170884A (en) 1986-12-31
HU195493B (en) 1988-05-30
PL143957B1 (en) 1988-03-31
IT8422981A0 (en) 1984-10-04
SE464411B (en) 1991-04-22
YU43603B (en) 1989-08-31
ES8505937A1 (en) 1985-07-01
PT79326B (en) 1986-09-08
SE8405002D0 (en) 1984-10-05
NO843949L (en) 1985-04-09
PL249918A1 (en) 1985-07-30
ES536544A0 (en) 1985-07-01
ATA316384A (en) 1988-08-15
SE8900248D0 (en) 1989-01-24
YU149686A (en) 1986-12-31
SE8405002L (en) 1985-04-07
IT1218850B (en) 1990-04-24
HU194559B (en) 1988-02-29
FI833628A (en) 1985-04-07
FI72317C (en) 1987-05-11
DK154504B (en) 1988-11-21
PT79326A (en) 1984-11-01
CS253593B2 (en) 1987-11-12
DK154504C (en) 1989-04-10
NO159275B (en) 1988-09-05

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Legal Events

Date Code Title Description
CH Change of patent owner

Owner name: *PFIZER INC.

Effective date: 19841005

RE20 Patent expired

Owner name: *PFIZER INC.

Effective date: 20041005