EP1134222A1 — IMIDAZO[4,5-b]PYRIDINIUMMETHYL-CONTAINING CEPHEM COMPOUNDS HAVING BROAD ANTIBACTERIAL SPECTRUM
Assigned to Shionogi and Co Ltd · Expires 2001-09-19 · 25y expired
What this patent protects
A cefem compound of the formula (I) shows wide antibacterial spectrum against various pathogenic bacteria including MRSA. wherein, X is N or CY and Y is H or halogen; R 1 is amino or protected amino; R 2 is hydrogen or optionally substituted lower alkyl etc.; R 3 is hydrogen…
USPTO Abstract
A cefem compound of the formula (I) shows wide antibacterial spectrum against various pathogenic bacteria including MRSA. wherein, X is N or CY and Y is H or halogen; R 1 is amino or protected amino; R 2 is hydrogen or optionally substituted lower alkyl etc.; R 3 is hydrogen etc.; R 4 is hydrogen, optionally substituted lower alkyl, or optionally substituted N-containing heterocyclic group etc.; R 5 is hydrogen etc.; and a wavy line means syn- or anti-isomerism or a mixture thereof.
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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