CA Patent

CA2426461A1 — Nitrogen-containing aromatic derivatives

Assigned to Eisai R&D Management Co Ltd · Expires 2002-04-25 · 24y expired

What this patent protects

Compounds represented by the general formula ( ) or salts thereof, or hydrat es of both: ( ) wherein Ag is an optionally substituted 5- to 14-membered heterocyclic group, or the like; Xg is O-, -S-, or the like; Yg is optionall y substituted C6-14 aryl, a 5- to 14-membered hetero…

USPTO Abstract

Compounds represented by the general formula ( ) or salts thereof, or hydrat es of both: ( ) wherein Ag is an optionally substituted 5- to 14-membered heterocyclic group, or the like; Xg is O-, -S-, or the like; Yg is optionall y substituted C6-14 aryl, a 5- to 14-membered heterocyclic group, or the like; and Tg1 is a group of the general formula ( ) or the like: ( ) [wherein Eg is a single bond, -N(Rg2)-, or the like; Rg1 and Rg2 are each independently hydrogen, optionally substituted C1-6 alkyl, or the like; and Zg is C1-8 alkyl, C3-8 alicyclic hydrocarbyl, C6-14 aryl, or the like].

Drugs covered by this patent

Patent Metadata

Patent number
CA2426461A1
Jurisdiction
CA
Classification
Expires
2002-04-25
Drug substance claim
No
Drug product claim
No
Assignee
Eisai R&D Management Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

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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