EP0443132A1 — Peptides having tachykinin antagonist activity, a process for preparation thereof and pharmaceutical compositions comprising the same
Assigned to Fujisawa Pharmaceutical Co Ltd · Expires 1991-08-28 · 35y expired
What this patent protects
A compound of forumula: wherein R 1 is aryl, or a group of the formula : wherein X is CH or N, and Z is 0 or N-R 5 , in which R 5 is hydrogen or lower alkyl, R 2 is hydroxy or lower alkoxy, R 3 is hydrogen or lower alkyl which may have suitable substituen…
USPTO Abstract
A compound of forumula: wherein R 1 is aryl, or a group of the formula : wherein X is CH or N, and Z is 0 or N-R 5 , in which R 5 is hydrogen or lower alkyl, R 2 is hydroxy or lower alkoxy, R 3 is hydrogen or lower alkyl which may have suitable substituent(s), R 4 is ar(lower)alkyl which may have suitable substituent(s), A is carbonyl or sulfonyl, and Y is bond or lower alkenylene, and pharmaceutically acceptable salt thereof, processes of their preparation and pharmaceutical compositions comprising them as an active ingredient in admixture with pharmaceutically acceptable carriers.
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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