353497-35-5Relevant articles and documents
A new industrial process for oxcarbazepine
Fuenfschilling, Peter C.,Zaugg, Werner,Beutler, Ulrich,Kaufmann, Daniel,Lohse, Olivier,Mutz, Jean-Paul,Onken, Ulrich,Reber, Jean-Louis,Shenton, David
, p. 272 - 277 (2012/12/24)
A novel industrial process for the antiepileptic drug oxcarbazepine 1 has been developed. Unlike the old process, the new process is free from halogenated solvents and can be performed in standard production equipment. It starts from commercially available 1,3-dihydro-1-phenyl-2H-indol-2-one 10. In the key step, an electrophilic ring closure reaction of 2-[(methoxycarbonyl)phenylamino] benzeneacetic acid 5 to 10,11-dihydro-10-oxo-5H-dibenz[b,f]azepine-5-carboxylic acid methyl ester 6 in poly phosphoric acid was applied. For the manufacture of 5, a highly efficient process using a dianion strategy was developed.
Dibenzo(b,f)azepine derivatives and their preparation
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, (2008/06/13)
The invention relates to new processes for the preparation of the pharmaceutical oxcarbazepine, as well as novel intermediates prepared by or used for said processes, and the preparation of said intermediates.