EP1460059A4 — Process for producing 5-(3-cyanophenyl)-3-formylbenzoic acid compound
Assigned to Teijin Ltd · Expires 2005-01-05 · 21y expired
What this patent protects
A 5-(3-cyanophenyl)-3-formylbenzoic acid compound represented by the general formula (IV) is obtained by reacting a 5-bromo-3-hydroxymethylbenzoic acid compound represented by the general formula (I) with manganese dioxide to prepare a 5-bromo-3-formylbenzoic acid compound repres…
USPTO Abstract
A 5-(3-cyanophenyl)-3-formylbenzoic acid compound represented by the general formula (IV) is obtained by reacting a 5-bromo-3-hydroxymethylbenzoic acid compound represented by the general formula (I) with manganese dioxide to prepare a 5-bromo-3-formylbenzoic acid compound represented by the general formula (II) and reacting the compound represented by the formula (II) with 3-cyanophenylboric acid represented by the formula (III) in the presence of a palladium complex. (IV) (I) (II) (III) (In the formulae, R is hydrogen or C1-10 alkyl.)
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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