Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
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C07C233/64
having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings
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C07C233/81
having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
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C07C233/82
with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
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C07C233/87
of a carbon skeleton containing six-membered aromatic rings
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