EP1522540A1 — Azaarene derivatives
Assigned to Eisai R&D Management Co Ltd · Expires 2005-04-13 · 21y expired
What this patent protects
A compound represented by the general formula: wherein X 1 represents a nitrogen atom or a group represented by the formula -CR 10 =; X 2 represents a nitrogen atom or a group represented by the formula -CR 11 =; Y represents an oxygen atom or the like; R 1 represents a C 1-…
USPTO Abstract
A compound represented by the general formula: wherein X 1 represents a nitrogen atom or a group represented by the formula -CR 10 =; X 2 represents a nitrogen atom or a group represented by the formula -CR 11 =; Y represents an oxygen atom or the like; R 1 represents a C 1-6 alkoxy group, an optionally substituted C 6-10 aryloxy group, a group represented by the formula -NR 12a R 12b or the like; R 2 represents a hydrogen atom, an optionally substituted C 1-6 alkyl group, or the like; R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 10 and R 11 each independently represent a hydrogen atom, a halogen atom, an optionally substituted C 1-6 alkyl group, or the like; R 9 represents a group represented by the formula -NR 16a R 16b or the like; and R 12a , R 12b , R 16a and R 16b each independently represent a hydrogen atom, an optionally substituted C 1-6 alkyl group, or the like, a salt thereof, or a hydrate of the foregoing.
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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