cas 65897-46-3, Desmethyl Piroxicam (Piroxicam Impurity B) | Articles data ｜lookchem

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65897-46-3

Articles about 65897-46-3Total 3 be found

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Process for preparing 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-[N-(2-pyridinyl)carboxamide]-1,1-dioxide, and its phosphoric ester
The present invention refers to a new process for preparing 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-[N-(2-pyridinyl)carboxamide]-1,1-dioxide, its phosphoric ester and the obtained phosphoric ester.
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(2008/06/13)

3-Oxo-1,2-benzoisothiazoline-2-acetic acid 1,1-dioxide derivatives. II. Reaction of amides with alkoxides
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Perillo,Schapira,Lamdan
p. 155 - 160
(2007/10/02)

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 give II, STR1 wherein R1 is hydrogen or lower alkyl and R2 is lower alkyl, aryl or a heterocyclic ring selected from the group consisting of pyridyl, substituted-pyridyl, and thiazolyl. Compounds of the formula II have useful anti-inflammatory properties. In addition, they can be used as intermediate in the preparation of known anti-inflammatory agents.
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(2008/06/13)

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36322-90-4
Piroxicam

Chemical Properties

Melting Point: 224℃ (decomposition)
Density: 1.611g/cm3
PKA: 4.50±1.00(Predicted)
PSA: 120.26000
LogP: 3.29790

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