EP0400495A1 — N-phenylalkyl substituted alfa-amino carboxamide derivatives and process for their preparation
Assigned to Pfizer Italia SRL · Expires 1990-12-05 · 35y expired
What this patent protects
N-phenylalkyl substituted α-amino carboxamide derivatives of formula (I) wherein R is C₁-C₈ alkyl, C₃-C₈ cycloalkyl, furyl, thienyl, pyridyl or unsubstituted or substituted phenyl; A is a -(CH₂) m - or -(CH₂) p -X-(CH₂) q - group wherein X is -O-, -S- or -NR₄-; R₁, R₂, R₃,…
USPTO Abstract
N-phenylalkyl substituted α-amino carboxamide derivatives of formula (I) wherein R is C₁-C₈ alkyl, C₃-C₈ cycloalkyl, furyl, thienyl, pyridyl or unsubstituted or substituted phenyl; A is a -(CH₂) m - or -(CH₂) p -X-(CH₂) q - group wherein X is -O-, -S- or -NR₄-; R₁, R₂, R₃, R′₃, R₄, n, m, p and q are as herein defined; and each of R₅ and R₆ is independently hydrogen or C₁-C₆ alkyl, and the pharmaceutically acceptable salts thereof, are active on the central nervous system and can be used as anti-epileptic, anti-Parkinson, neuroprotective, antidepressant, antispastic and/or hypnotic agents in mammals.
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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