SE8405002D0 - PREPARATION OF BENZOTIAZINE Dioxide - Google Patents

PREPARATION OF BENZOTIAZINE Dioxide

Info

Publication number
SE8405002D0
SE8405002D0 SE8405002A SE8405002A SE8405002D0 SE 8405002 D0 SE8405002 D0 SE 8405002D0 SE 8405002 A SE8405002 A SE 8405002A SE 8405002 A SE8405002 A SE 8405002A SE 8405002 D0 SE8405002 D0 SE 8405002D0
Authority
SE
Sweden
Prior art keywords
dioxide
preparation
benzotiazine
formula
benzothiazine
Prior art date
Application number
SE8405002A
Other languages
Swedish (sv)
Other versions
SE460789B (en
SE8405002L (en
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 SE8405002D0 publication Critical patent/SE8405002D0/en
Publication of SE8405002L publication Critical patent/SE8405002L/en
Publication of SE460789B publication Critical patent/SE460789B/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

This invention relates to a method for the preparation of a pharmaceutically usable 2-methyl-4-hydroxy-2H-1,2-benzothiazine-1,1-dioxide with formula I <IMG> I In accordance with the invention 2-methyl-4-mesyloxy-2H,1,2-benzothiazine-1,1-dioxide-3-carboxylic acid with formula II <IMG> II is reacted with 2-aminopyridine in the presence of thionyl chloride in an inert solvent. The invention relates also to the intermediate with formula II which can be used in the method.
SE8405002A 1983-10-06 1984-10-05 PROCEDURES FOR PREPARING PHARMACEUTICAL USE 2-METHYL-4-HYDROXY-2H-1,2-BENZOTIAZINE-1,1-DIOXIDE-3- (N-2-PYRIDYL) CARBOXAMIDE SE460789B (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 (3)

Publication Number Publication Date
SE8405002D0 true SE8405002D0 (en) 1984-10-05
SE8405002L SE8405002L (en) 1985-04-07
SE460789B SE460789B (en) 1989-11-20

Family

ID=8517867

Family Applications (2)

Application Number Title Priority Date Filing Date
SE8405002A SE460789B (en) 1983-10-06 1984-10-05 PROCEDURES FOR PREPARING PHARMACEUTICAL USE 2-METHYL-4-HYDROXY-2H-1,2-BENZOTIAZINE-1,1-DIOXIDE-3- (N-2-PYRIDYL) CARBOXAMIDE
SE8900248A SE464411B (en) 1983-10-06 1989-01-24 The intermediate 2-methyl-4-mesyloxy-2H-1,2-benzothiazine- 1,1-dioxide-3-carboxylic acid, or a solvate thereof with dimethylacetamide, for use in preparing a pharmaceutically utilizable benzothiazine dioxide

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE8900248A SE464411B (en) 1983-10-06 1989-01-24 The intermediate 2-methyl-4-mesyloxy-2H-1,2-benzothiazine- 1,1-dioxide-3-carboxylic acid, or a solvate thereof with dimethylacetamide, for use in preparing a pharmaceutically utilizable benzothiazine dioxide

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
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
BE900758A (en) 1985-02-01

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