EP2557082A1 — Cephem compound having catechol group
Assigned to Shionogi and Co Ltd · Expires 2013-02-13 · 13y expired
What this patent protects
A compound of the formula: wherein X is -N=, -CH=, or the like; W is -CH 2 - or the like; U is -S- or the like; R 1 and R 2 are each independently hydrogen, halogen, optionally substituted lower alkyl, or the like; R 3 is hydrogen or the like; each R 4 is independent…
USPTO Abstract
A compound of the formula: wherein X is -N=, -CH=, or the like; W is -CH 2 - or the like; U is -S- or the like; R 1 and R 2 are each independently hydrogen, halogen, optionally substituted lower alkyl, or the like; R 3 is hydrogen or the like; each R 4 is independently hydrogen, halogen, or the like; m is an integer from 0 to 2; Q is a single bond, or the like; G is -C(=O)-, or the like; D is a single bond, -NH-, or the like; and E is a cyclic quaternary ammonium group, or an ester, a protected compound at the amino on the ring in the 7-side chain, a pharmaceutically acceptable salt, or a solvate 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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