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Details for Patent: 5,712,298

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Patent 5,712,298 protects DALIRESP and is included in one NDA. There has been one Paragraph IV challenge on Daliresp. There is one tentative approval for the compound protected by this patent. Additional details are available via the generic ingredient links below.

This patent has thirty-five patent family members in twenty-five countries.

Summary for Patent: 5,712,298

Title: Fluoroalkoxy-substituted benzamides and their use as cyclic nucleotide phosphodiesterase inhibitors
Abstract:Compounds of formula (I), in which one of the substituents R1 or R2 stands for hydrogen, 1-6C-alkoxy, 3-7C-cycloalkoxy, 3-7C-cycloalkylmethoxy, benzyloxy or totally or partially fluorine-substituted 1-4C-alkoxy, and the other stands for totally or partially fluorine-substituted 1-4C-alkoxy, and R3 stands for phenyl, pyridyl, R31, R32 and R33-substituted phenyl or R34, R35, R36 and R37-substituted pyridyl, in which R31 stands for hydroxy, halogen, cyano, carboxyl, trifluoromethyl 1-4C-alkyl, 1-4C-alkoxy, 1-4C-alkoxycarbonyl, 1-4C-alkylcarbonyl, 1-4C-alkylcarbonyloxy, amino, mono- or di-1-4C-alkylamino or 1-4C-alkylcarbonylamino; R32 stands for hydrogen, hydroxy, halogen, amino, trifluoromethyl, 1-4C-alkyl or 1-4C-alkoxy; R33 stands for hydrogen, halogen, 1-4C-alkyl or 1-4C-alkoxy; R34 stands for hydroxy, halogen, cyano, carboxyl, 1-4C-alkyl, 1-4C-alkoxy, 1-4C-alkoxycarbonyl or amino; R35 stands for hydrogen, halogen, amino or 1-4C-alkyl; R36 stands for hydrogen or halogen; and R37 stands for hydrogen or halogen. These compounds constitute new effective bronchotherapeutic drugs. ##STR1##
Inventor(s): Amschler; Hermann (Radolfzell, DE)
Assignee: BYK Gulden Lomberg Chemische Fabrik GmbH (Konstanz, DE)
Application Number:08/564,322
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Astrazeneca Pharms
DALIRESP
roflumilast
TABLET;ORAL022522-001Feb 28, 2011RXYes5,712,298► subscribeYY TREATMENT TO REDUCE THE RISK OF COPD EXACERBATIONS IN PATIENTS WITH SEVERE COPD ASSOCIATED WITH CHRONIC BRONCHITIS AND A HISTORY OF EXACERBATIONS
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Foreign Priority and PCT Information for Patent: 5,712,298

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Switzerland01 996/99Jul 02, 1993
PCT Information
PCT FiledJuly 02, 1994PCT Application Number:PCT/EP94/02169
PCT Publication Date:January 12, 1995PCT Publication Number: WO95/01338

International Patent Family for Patent: 5,712,298

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria217612► subscribe
Australia687087► subscribe
Australia7490794► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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