EP Patent

EP0144098A1 — Cyclic ureas of isoxazole

Assigned to Shionogi and Co Ltd · Expires 1985-06-12 · 41y expired

What this patent protects

Cyclic ureas of isoxazole (I) which show potent herbicidal activity. (wherein R 1 is C 1 -C 5 alkyl; R 2 is hydrogen, C,-C 5 alkyl, or C 2 -C 5 alkenyl; -R 3 -R 4 - is -CO-CH 2 -, -CO-CO-, -CH(OY)-CH(OY)--CH(OY)-CH 2 -, -CH(OZ)-CO-, or CO-CH(OZ); R 5 is hydro…

USPTO Abstract

Cyclic ureas of isoxazole (I) which show potent herbicidal activity. (wherein R 1 is C 1 -C 5 alkyl; R 2 is hydrogen, C,-C 5 alkyl, or C 2 -C 5 alkenyl; -R 3 -R 4 - is -CO-CH 2 -, -CO-CO-, -CH(OY)-CH(OY)--CH(OY)-CH 2 -, -CH(OZ)-CO-, or CO-CH(OZ); R 5 is hydrogen or C 1 -C 3 alkyl; n is 1 or 2; X is hydrogen or halogen; Y is C 1 -C 5 alkyl, C 2 -C 5 alkenyl, C 2 -C 5 alkoxycarbonyl, or N-(C 1 -C 3 alkyl)-carbamoyl; and Z is hydrogen, C 2 -C 5 alkanoyl, C 2 -C 5 alkoxycarbonyl, N-(C 1 -C 3 alkyl)carbamoyl, or benzoyl which may be substituted).

Drugs covered by this patent

Patent Metadata

Patent number
EP0144098A1
Jurisdiction
EP
Classification
—
Expires
1985-06-12
Drug substance claim
No
Drug product claim
No
Assignee
Shionogi and 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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