Pyridothiazineacetic acid compound, production thereof and use thereof
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United States of America Patent
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Oct 14, 1997
Grant Date -
N/A
app pub date -
Sep 3, 1996
filing date -
Mar 29, 1993
priority date (Note) -
Expired
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Abstract
A pyridothiazineacetic acid compound of the formula (I) ##STR1## wherein each symbol is as defined in the specification, a pharmaceutically acceptable salt thereof, production thereof, and a pharmaceutical composition, an aldose reductase inhibitor and a preparation for the prevention and treatment of the complications of diabetes, containing the same. The pyridothiazineacetic acid compound and a pharmaceutically acceptable salt thereof of the present invention have an aldose reductase inhibitory action and are superior in safety. Accordingly, they are useful as a preparation for the prevention and treatment of the complications of diabetes, such as faulty union of corneal injury, cataract, neurosis, retinopathy and nephropathy, particularly, cataract and neurosis. In addition, the production method of the present invention enables efficient production of said pyridothiazineacetic acid compound.
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