GB Patent

GB1495778A — Hexahydroazepines

Assigned to John Wyeth and Brother Ltd · Expires 1977-12-21 · 48y expired

What this patent protects

1495778 Hexamethyleneimines JOHN WYETH & BRO Ltd 16 June 1976 [18 June 1975] 25891/75 Addition to 1285025 Heading C2C Novel compounds II in which R<SP>4</SP> is C 1-6 alkyl, R<SP>5</SP> is C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl or cyclopropylmet…

USPTO Abstract

1495778 Hexamethyleneimines JOHN WYETH & BRO Ltd 16 June 1976 [18 June 1975] 25891/75 Addition to 1285025 Heading C2C Novel compounds II in which R<SP>4</SP> is C 1-6 alkyl, R<SP>5</SP> is C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl or cyclopropylmethyl and R<SP>6</SP> is 1-adamantoyl, and pharmaceutically acceptable acid addition and quaternary ammonium salts thereof, are prepared by esterifying a corresponding phenol with a reactive derivative of adamantane-1- carboxylic acid, followed, if required, by conversion of a resulting free base into a salt or vice versa. Analgesic compositions for oral or parenteral administration, comprise one of the above novel compounds together with a pharmaceutically acceptable carrier.

Drugs covered by this patent

Patent Metadata

Patent number
GB1495778A
Jurisdiction
GB
Classification
—
Expires
1977-12-21
Drug substance claim
No
Drug product claim
No
Assignee
John Wyeth and Brother 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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