EP1556389A1 — Cephem compounds
Assigned to Wakunaga Pharmaceutical Co Ltd · Expires 2005-07-27 · 21y expired
What this patent protects
The present invention relates to a compound of the formula [I]: wherein R>1< is lower alkyl, hydroxy(lower)alkyl or halo(lower)alkyl, and R>2< is hydrogen or amino protecting group, or R>1< AND R>2< are bonded together and form lower alkylene or lower alke…
USPTO Abstract
The present invention relates to a compound of the formula [I]: wherein R>1< is lower alkyl, hydroxy(lower)alkyl or halo(lower)alkyl, and R>2< is hydrogen or amino protecting group, or R>1< AND R>2< are bonded together and form lower alkylene or lower alkenylene; R>3< is hydrogen or lower alkyl; R>4< IS ; R>5< is carboxy or protected carboxy; and R>6< is amino or protected amino, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.
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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