Certain diacetyl-amino-phenolic derivatives
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United States of America Patent
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Nov 8, 1983
Issued Date -
N/A
app pub date -
Jan 20, 1982
filing date -
Dec 7, 1979
priority date (Note) -
Expired
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Abstract
There is described a process for the production of a 1,4-dihydro-4-oxo-quinoline-2-carboxylic acid, or a salt, ester or amide thereof, which comprises cyclization of a corresponding 2-aminobenzoyl pyruvic acid or an ester thereof, and if desired or necessary converting the resulting product to an appropriate salt, ester or amide thereof, or vice versa.
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