EP2058302A1 — Method for producing phenoxypyridine derivative
Assigned to Eisai R&D Management Co Ltd · Expires 2009-05-13 · 17y expired
What this patent protects
A process for preparing a compound represented by the formula (I): comprising reacting a compound represented by the formula (II) or salt thereof: with a compound represented by the formula (III): in the presence of a condensation reagent, wherein R 1 represen…
USPTO Abstract
A process for preparing a compound represented by the formula (I): comprising reacting a compound represented by the formula (II) or salt thereof: with a compound represented by the formula (III): in the presence of a condensation reagent, wherein R 1 represents 1) optionally substituted azetidin-1-yl, 2) optionally substituted pyrrolidin-1-yl, 3) optionally substituted piperidin-1-yl, etc.; R 2 , R 3 , R 4 and R 5 may be the same or different and each represents hydrogen or fluorine; and R 6 represents hydrogen or fluorine.
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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