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Generated: May 20, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,912,238

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Summary for Patent: 5,912,238
Title: Heteroatoms-containing tricyclic compounds
Abstract:The invention concerns the compounds of formula I ##STR1## wherein the substituents have various significances. They are prepared by several processes including epimerizing replacement, treatment with cyanogen bromide or thiophosgene, treatment with an acid having a non-nucleophilic anion, treatment with dimethylsulfoxide and acetic anhydride, acylation, treatment with an oxalyl derivative and ammonia, methylation, oxidation, deprotection and protection. They possess interesting pharmacological activity as antiinflammatory, immunosuppressant, antiproliferative and chemotherapeutic drug resistance reversing agents.
Inventor(s): Baumann; Karl (Vienna, AT), Emmer; Gerhard (Vienna, AT)
Assignee: Novartis AG (Basel, CH)
Application Number:08/276,276
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 5,912,238
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

Drugs Protected by US Patent 5,912,238

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

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Foreign Priority and PCT Information for Patent: 5,912,238

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany39 37 336Nov 09, 1989
Germany39 38 132Nov 16, 1989
Germany39 42 831Dec 23, 1989
Germany39 42 833Dec 23, 1989

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Serving hundreds of leading biopharmaceutical companies globally:

Chinese Patent Office
US Army
Teva
UBS
US Department of Justice
Colorcon
Federal Trade Commission
AstraZeneca
McKesson

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