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Last Updated: July 2, 2020

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Details for Patent: 4,525,358

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Summary for Patent: 4,525,358
Title: 2-[4-(Diphenylmethyl)-1-piperazinyl]-acetic acids and their amides
Abstract:New 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids, their amides and their salts, processes for the preparation thereof and therapeutic compositions. These compounds have the formula ##STR1## wherein Y=--OH or --NH.sub.2 ; X and X'=H, halogen, alkoxy or trifluoromethyl; m=1 or 2 and n=1 or 2. The amides of the 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids are prepared either by reacting a 1-(diphenylmethyl)-piperazine with an omegahaloacetamide, or by reacting an alkali metal salt of an omega-[4-(diphenylmethyl)-1-piperazinyl]-alkanol with a 2-haloacetamide, or yet by reacting ammonia with a halide or alkyl ester of a 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acid, whereas the 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids are prepared by hydrolyzing the corresponding amide or lower alkyl ester. These compounds have in particular an antiallergic, spasmolytic and antihistaminic activity.
Inventor(s): Baltes; Eugene (Rhode-St.Genese, BE), de Lannoy; Jean (Brussels, BE), Rodriguez; Ludovic (Brussels, BE)
Assignee: UCB Pharmaceuticals, Inc. (Dover, DE)
Application Number:06/496,489
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

Drugs Protected by US Patent 4,525,358

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 4,525,358

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8103768Feb 06, 1981
United Kingdom8110990Apr 08, 1981

International Family Members for US Patent 4,525,358

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 8140   Start Trial
Australia 544066   Start Trial
Australia 8023182   Start Trial
Bosnia and Herzegovina 97198   Start Trial
Bosnia and Herzegovina 97199   Start Trial
Canada 1199918   Start Trial
Cyprus 1307   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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