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4074048 |
Process for the preparation of 4-hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxides
A novel process for preparing 4-hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxides is disclosed. The process involves the base catalyzed rearrangement of a saccharinacetamide of structure I to...
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4024136 |
Process for the preparation of 4-hydroxy-3-(5-methyl-3-isoxazolylcarbamoyl)-2-methyl-2H-1,2-benzothiazi ne 1,1-dioxide
An improved process for the preparation of 4-hydroxy-3-(5-methyl-3-isoxazolylcarbamoyl)-2-methyl-2H-1,2
-benzothiazine 1,1-dioxide (I), a known anti-inflammatory agent, is described. The process...
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4018762 |
Process for the preparation of 4-hydroxy-3-(5-methyl-3-isoxazolylcarbamoyl)-2-methyl-2H-1,2-benzothiazi ne 1,1-dioxide
A novel process for preparing 4-hydroxy-3-(5-methyl-3-isoxazolylcarbamoyl)-2-methyl-2H-1,2
-benzothiazine 1,1-dioxide (I), starting with 3-amino-5-methylisoxazole (II) is disclosed. Compound I...
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3987038 |
Process for the preparation of {1-[5-(4-hydroxy-2H-1,2-benzothiazin-3-yl)-1,2,4-oxadiazol-3-yl]methyl}e thanone S,S-dioxide
This invention relates to a process for the preparation of 1-{[5-(4-hydroxy-2H-1,2-benzothiazin-3-yl)-1,2,4-oxadiazol-3
-yl]methyl}eth anone S,S-dioxide (III), a novel intermediate useful in the...
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3966716 |
2H-1,3,2-dioxaborino-[5,4-c]-1,2-benzo-thiazine 6,6-dioxides
Process for the production of substituted pyrano[3,2-c] [1,2]benzothiazine 6,6-dioxides and novel intermediates produced thereby of the general formula I: ##SPC1## wherein R represents hydrogen and...
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3927002 |
N-(pyridyl)-N'-alkyl-N'-(2-alkoxycarbonylbenzenesulfonyl)-glycineamides and derivatives
A process for the synthesis of N-aryl-3,4-dihydro-2-alkyl-4-oxo-2H-1,2-benzothiazine-3-carb
oxamide 1,1-dioxides by treatment of N-aryl-N'-alkyl-N'-(2'-alkoxycarbonylbenzenesulfonyl)glycine
amides,...
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3925371 |
Benzothiazine-1,1-dioxides
Novel carbonate esters of 3-heteroarylcarbamyl-4-hydroxy-2H-1,2-benzothiazine 1,1-dioxides are disclosed. The esters have therapeutic properties in antiinflammatory, anti-thrombotic and analgesic...
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3923801 |
Oxazinobenzothiazine 6,6-dioxides
5-Alkyl-3-aryl-2H,5H-1,3-oxazino-[5,6-c] 1,2-benzothiazine-2,4(3H)-dione 6,6-dioxides are disclosed. The compounds have anti-inflammatory properties and are useful as components of antiarthritic...
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3916013 |
SUBSTITUTED-O-HYDROXY-OMEGA-(METHYLSULFINYL-ACETOPHENONES AND PROCESS FOR PRODUCING SAME
The present invention relates to substituted-o-hydroxy-ω-(methylsulfinyl)acetophenones of the formula ##SPC1## wherein Z is an aromatic or heteroaromatic nucleus such as benzene, naphthalene,...
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3900470 |
Esters of benzothiazine-1,1-dioxides derivatives
Novel esters of the formula ##SPC1## Wherein R is lower alkyl, R 1 is lower alkyl, benzyl or phenyl, Ar is phenyl or phenyl substituted with one or two substituents selected from lower alkyl,...
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3892740 |
Process for the production of carboxamides of oxo-1,2-benzothiazine-1,1-dioxides
Disclosed herein is an improved process for the production of carboxamides of 3,4-dihydro-oxo-1,2-benzothiazine-1,1-dioxides. Said process comprises contacting either a...
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3892739 |
1,2-Benzothiazines
The present invention relates to substituted-o-hydroxy-ω-(methylsulfinyl) acetophenones of the formula I. ##SPC1## wherein Z is an aromatic or heteroaromatic nucleus such as benzene, naphthalene,...
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3868367 |
4-Hydroxy-3-(5-isoxazolylcarbamoyl)-2H-1,2-benzothiazine 1,1-dioxides
Compounds of the formula: ##SPC1## Wherein R 1 , R 2 and R 3 are hydrogen or alkyl. These compounds are useful as antiinflammatory agents.
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3856784 |
ALKYLAMINOALKYL 4-HYDROXY-2-METHYL-2H-1,2-BENZOTHIAZINE-3-CARBOXYLATE 1,1-DIOXIDES AND N-ALKYLAMINOALKYL-4-HYDROXY-2-METHYL-2H-1,2-BENZOTHIAZINE-3-CARBOXAMIDE 1,1-DIOXIDES
Compounds of the formulas: Are disclosed wherein R 1 is dialkylaminoalkyl; R 2 is dialkylaminoalkyl or monoalkylaminoalkyl and R 3 is hydrogen or alkyl. These compounds are useful as central...
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3853862 |
PRODUCTION OF 4-HYDROXY-1,2-BENZOTHIAZINE-3-CARBOXAMIDES
A process for the synthesis of N-aryl-3,4-dihydro-2-alkyl-4-oxo-2H-1,2-benzothiazine-3-carb
oxamide 1,1-dioxides by treatment of N-aryl-N'-alkyl-N'-(2'-alkoxycarbonylbenzenesulfonyl)glycine
amides,...
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3714155 |
4-HYDROXY-2,N-DIMETHYL-2H-1,2-BENZOTHIAZINE-3-CARBOXANILIDE1,1-DIOXIDE AND PROCESS THEREFOR
A compound of the formula is disclosed: ##SPC1## This compound is prepared as follows: ##SPC2## It is useful as an anti-inflammatory agent.
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3692780 |
4-SUBSTITUTED-2-ALKYL-3-PHENYL-2H-1,2-BENZOTHIAZINE-1,1-DIOXIDES AND PROCESSES FOR THEIR PRODUCTION
4-substituted-2-alkyl-3-phenyl-2H-1,2-benzothiazine-1,1-diox
ides having the following structural formula are disclosed ##SPC1## Wherein R 1 is alkyl or aralkyl and R 2 is hydrogen or acyl. These...
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3546220 |
2,3-DIHYDRO-1H-PYRIDO-(2,3-B)(1,4)THIAZINES
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3501466 |
3-CARBAMOYL AND 3-ALKOXYCARBONYL BENZOTHIAZINE-1,1-DIOXIDES
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3492296 |
3-LOWER ALKOXY-2H-1,2-BENZOTHIAZIN-4-(3H)-ONE 1,1-DIOXIDE
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3492298 |
OXAZINO-BENZOTHIAZINE-6,6-DIOXIDES
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3479436 |
3-LOWER ALKOXY - 2H-1,2-BENZOTHIAZIN-4(3H)-ONE 1,1-DIOXIDE FOR TREATING AMMONEMIC STATES IN MAMMALS
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3476749 |
BENZOTHIAZIN-4-ONE-1,1-DIOXIDE DERIVATIVES
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3472857 |
N-(3-PYRAZOLYL-PROPYL)-N'-PHENYL PIPERAZINES
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3427311 |
5,11-DIHYDROINDOLO(3,2-C)(2,1)-BENZOTHIAZINE-6,6-DIOXIDE COMPOUNDS
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3408346 |
1h-2, 3-benzothiazin-4(3h)-one 2, 2-dioxide and process for their production
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3408347 |
Pyrido-[1, 2-b] [1, 2]benzothiazin-10, 11-(7h, 10alphah)-dione 5, 5-dioxides and 7, 8-dihydropyrido-[1, 2-b] [1, 2]benzothiazin-10, 11-(9h, 10alphah)-dione 5, 5-dioxidesand process for their production
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3346572 |
Pyrazolo [4, 3-c] [1, 2] benzothiazine 5, 5-dioxides and process for their production
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3303190 |
Novel dihydro-2, 1-benzothiazine-2, 2-dioxide compounds
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3303191 |
Novel 4-ketodihydro-2, 1-benzothiazine-2, 2-dioxides
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3303189 |
2, 1-benzothiazine-2, 2-dioxides
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3284450 |
Cyclized o-carboxybenzenesulfonic acid derivatives and method of preparing the same
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3803131 |
Title is not available
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3646021 |
Title is not available
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3821211 |
Title is not available
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3808205 |
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3787324 |
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3770733 |
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3822258 |
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3712889 |
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3787400 |
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3704298 |
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3787403 |
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3821212 |
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3787404 |
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3801644 |
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3787399 |
Title is not available
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3591584 |
Title is not available
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3646020 |
Title is not available
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3787401 |
Title is not available
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