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Last Updated: December 7, 2019

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Details for Patent: RE34440

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Summary for Patent: RE34440
Title: Benzonaphthalene derivatives, a process for their preparation and their use in therapeutic and cosmetic compositions
Abstract:A benzonaphthalene compound has the formula ##STR1## wherein R.sub.1 represents ##STR2## or (ii) --CH.sub.2 OH; R.sub.6 represents ##STR3## or OR.sub.7 wherein R.sub.7 represents hydrogen, alkyl having 1-20 carbon atoms, monohydroxyalkyl or polyhydroxyalkyl, r' or r" represent hydrogen, lower alkyl, mono or polyhydroxyalkyl, aryl or a residue of an amino acid or a sugar, or together form a heterocycle; R.sub.2 represents hydrogen, alkyl having 1-15 carbon atoms, alkoxy having 1-4 carbon atoms or a cycloaliphatic radial; R.sub.3 represents hydrogen, hydroxy, alkyl having 1-4 carbon atoms, alkoxy having 1-10 carbon atoms, a cycloaliphatic radical, a thiocycloaliphatic radical or --O--Si(CH.sub.3).sub.2 --R.sub.8 wherein R.sub.8 represents lower alkyl; and R.sub.4 and R.sub.5 represent hydrogen, lower alkyl, hydroxy or lower acyloxy. This compound is useful in the topical and systemic treatment of dermatologic diseases and in the treatment of the degeneration of conjunctive tissues. The compound also possesses anti-tumor activity.
Inventor(s): Shroot; Braham (Antibes, FR), Eustache; Jacques (Grasse, FR), Bernardon; Jean-Michel (Nice, FR)
Assignee: Centre International de Recherches Dermatologiques (C.I.R.D.) (Valbonne, FR)
Application Number:07/913,897
Patent Claim Types:
see list of patent claims
Use; Composition; Compound; Process;

Drugs Protected by US Patent RE34440

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: RE34440

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Luxembourg85849Apr 11, 1985

International Family Members for US Patent RE34440

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 40675   Start Trial
Australia 4796190   Start Trial
Australia 5591286   Start Trial
Australia 595192   Start Trial
Australia 638223   Start Trial
Canada 1266646   Start Trial
Germany 10199023   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

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AstraZeneca

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