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process for the production of new 4 - hydroxy - 3 - quinoline - carbonsaeuren, or their corresponding esters, amides, hydraziden or nitrilen, or their may 1, and salts of such compounds tautomeren replaced:
process for the production of new 4 - hydroxy - 3 - quinoline - carbonsaeuren, or their corresponding esters, amides, hydraziden or nitrilen, or their may 1, and salts of such compounds tautomeren replaced:
