AU2003275681B8 — Novel quinoxalinone derivatives
Assigned to MSD KK · Expires 2009-03-26 · 17y expired
What this patent protects
A quinoxalinone derivative of the formula (I): <CHEM> or a pharmaceutically acceptable salt or ester thereof, wherein; X is NH, S or the like; Y is O or the like; the partial structure <CHEM> is, for example, the formula: <CHEM> B1, B2, ....., Bn-1 and Bn, (in w…
USPTO Abstract
A quinoxalinone derivative of the formula (I): <CHEM> or a pharmaceutically acceptable salt or ester thereof, wherein; X is NH, S or the like; Y is O or the like; the partial structure <CHEM> is, for example, the formula: <CHEM> B1, B2, ....., Bn-1 and Bn, (in which n is 4 , 5 or 6) are each independently CH, N or the like; B'1, B'2, ....., B'n-1 and B'n (in which n is 4, 5 or 6) are each independently hydrogen or the like; and R is hydrogen, lower alkyl or the like.
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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