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Qadan; Asal
Dresden, DE
No. of patents:

Patent Number Title Of Patent Date Issued
8222282 Sulfonate salts of 2-amino-3-carbethoxyamino-6-(4-fluoro-benzylamino)-pyridine July 17, 2012
Flupirtine acid addition salts having the following formula (2), ##STR00001## wherein R represents a substituted or unsubstituted C.sub.1-C.sub.12-alkyl or a substituted or unsubstituted C.sub.6-C.sub.10-aryl group, have been prepared.
8183267 Carboxylic acid salts of 2-amino-3-carbethoxyamino-6-(4-fluoro-benzylamino)-pyridine May 22, 2012
The preparation of flupirtine carboxylate acid addition salts having the following formula (2), ##STR00001## wherein R represents hydrogen or a C.sub.1-C.sub.6 alkyl group, with the proviso that RCOOH is neither maleic acid nor gluconic acid, is described.

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