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Generated: December 18, 2017

DrugPatentWatch Database Preview

Details for Patent: RE44768

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Which drugs does patent RE44768 protect, and when does it expire?

Patent RE44768 protects TORISEL and is included in one NDA. There has been one Paragraph IV challenge on Torisel.

Protection for TORISEL has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

Summary for Patent: RE44768

Title:Rapamycin hydroxyesters
Abstract: A compound of the structure ##STR00001## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen or --CO(CR.sup.3R.sup.4).sub.b(CR.sup.5R.sup.6).sub.dCR.sup.7R.sup.8R.sup.9; R.sup.3 and R.sup.4 are each, independently, hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, or --F; R.sup.5 and R.sup.6 are each, independently, hydrogen, alkyl, alkenyl, alkynyl, --(CR.sup.3R.sup.4).sub.fOR.sup.10, --CF.sub.3, --F, or --CO.sub.2R.sup.11, or R.sup.5 and R.sup.6 may be taken together to form X or a cycloalkyl ring that is optionally mono-, di-, or tri-substituted with --(CR.sup.3R.sup.4).sub.fOR.sup.10; R.sup.7 is hydrogen, alkyl, alkenyl, alkynyl, --(CR.sup.3R.sup.4-).sub.fOR.sup.10, --CF.sub.3, --F, or CO.sub.2R.sup.11; R.sup.8 and R.sup.9 are each, independently, hydrogen, alkyl, alkenyl, alkynyl, --(CR.sup.3R.sup.4).sub.fOR.sup.10, --CF.sub.3, --F, or --CO.sub.2R.sup.11, or R.sup.8 and R.sup.9 may be taken together to form X or a cycloalkyl ring that is optionally mono-, di-, or tri-substituted with --(CR.sup.3R.sup.4-).sub.fOR.sup.10; R.sup.10 is hydrogen, alkyl, alkenyl, alkynyl, tri-(alkyl)silyl, tri-(alkyl)silylethyl, triphenylmethyl, benzyl, alkoxymethyl, tri-(alkyl)silylethoxymethyl, chloroethyl, or tetrahydropyranyl; R.sup.11 is hydrogen, alkyl, alkenyl, alkynyl, or phenylalkyl; X is 5-(2,2-dialkyl)[1,3]dioxanyl, 5-(2,2-dicycloalkyl)[1,3]dioxanyl, 4-(2,2-dialkyl)[1,3]dioxanyl, 4-(2,2-dicycloalkyl)[1,3]dioxanyl, 4-(2,2dialkyl)[1,3]dioxalanyl, or 4-(2,2-dicycloalkyl)[1,3]dioxalanyl; b=0-6; d=0-6; and f=0-6 with the proviso that R.sup.1 and R.sup.2 are both not hydrogen and further provided that either R.sup.1 or R.sup.2 contains at least one --(CR.sup.3R.sup.4).sub.fOR.sup.10, X, or --(CR.sup.3R.sup.4).sub.fOR.sup.10 substituted cycloalkyl group, or a pharmaceutically acceptable salt thereof which is useful as an immunosuppressive, antiinflammatory, antifungal, antiproliferative, and antitumor agent.
Inventor(s): Skotnicki; Jerauld S. (Allentown, NJ), Leone; Christina L. (Princeton, NJ), Schiehser; Guy A. (Yardley, PA)
Assignee: Wyeth LLC (Madison, NJ)
Application Number:13/931,400
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

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
Pf Prism CvTORISELtemsirolimusSOLUTION;INTRAVENOUS022088-001May 30, 2007RXYesYes► Subscribe► SubscribeY► Subscribe
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Serving leading biopharmaceutical companies globally:

Chinese Patent Office
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US Department of Justice

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