Analogs of epothilone

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C514S365000, C514S369000, C548S187000, C548S202000, C548S204000

Reexamination Certificate

active

10634537

ABSTRACT:
Designed epoxide and cyclopropane epothilone analogs with substituted side-chains are disclosed and characterized with respect to their biological activities against a series of human cancer cell lines. Among the several bioactive analogs, the epothilone B analog with a thiomethyl thiazole ring stands out as the most potent.

REFERENCES:
patent: 6531497 (2003-03-01), Nicolaou et al.
patent: WO-99/54318 (1999-10-01), None
patent: WO-99/67252 (1999-12-01), None
patent: WO-2003/026744 (2003-04-01), None
Golub et al., Science, vol. 286, Oct. 15, 1999, pp. 531-537.
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Nicolaou, et al., “The Olefin Metathesis Approach to Epothilone A and Its Analogues”,J. Am. Chem. Soc. 119: 7960-7973 (1997).
Nicolaou, et al., “Total Syntheses of Epothilones A and B via a Macrolactonization-Based Strategy”,J. Am. Chem. Soc. 119: 7974-7991 (1997).
Nicolaou, et al., “Designed Epothilones: Combinatorial Synthesis, Tubulin Assembly Properties, and Cytotoxic Action against Taxol-Resistant Tumor Cells”,Angew. Chem. Int. Ed. Engl. 36: 2097-2103 (1997).
Nicolaou, et al., “Total Synthesis of Epothilone E and Analogues with Modified Side Chains through the Stille Coupling Reaction”,Angew. Chem. Int. Ed. Engl. 37: 84-87 (1998).
Nicolaou, et al., “Chemical Biology of Epothilones”,Angew. Chem. Int. Ed. Engl. 37: 2015-2045 (1998).
Nicolaou, et al., “Total Synthesis of Epothilone E and Related Side-chain Modified Analogues via a Stille Coupling Based Strategy”,Bioorg. Med. Chem. 7: 665-697 (1999).
Giannakakou, et al., “A common pharmacophore for epothilone and taxanes: Molecular basis for drug resistance conferred by tubulin mutations in human cancer cells”,Proc. Natl. Acad. Sci. USA 97: 2904-2909 (2000).
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Nicolaou, et al., “Chemical synthesis and biological properties of pyridine epothilones”,Chem. Biol. 7: 595-599 (2000).
Nicolaou, et al., “Total Synthesis of 16-Desmethylepothilone B, Epothilone B10, Epothilone F, and Related Side Chain Modified Epothilone B Analogues”,Chem. Eur. J. 6: 2783-2800 (2000).
Nicolaou, et al., “ Synthesis and Biological Evaluation of 12,13-Cyclopropyl and 12,13-Cyclobutyl Epothilones”,ChemBioChem 2: 69-75 (2001).
Sinha, et al., “Synthesis of Epothilone Analogues by Antibody-Catalyzed Resolution of Thiazole Aldol Synthons on a Multigram Scale. Biological Consequences of C-13 Alkylation of Epothilones”,ChemBioChem 2: 656-665 (2001).
Nicolaou, et al., “Recent developments in the chemistry, biology and medicine of the epothilones”,Chem. Commun.: 1523-1535 (Sep. 7, 2001), Issue 17.
Andreu, et al., “The Interaction of Baccatin III with the Taxol Binding Site of Microtubules Determined by a Homogenous Assay with Fluorescent Taxoid”,Biochemistry 40: 11975-11984 (2001).
Nicolaou, et al., “Chemical Synthesis and Biologiccal Evaluation ofcis- andtrans-12,13-Cyclopropyl and 12,13-Cyclobutyl Epothilones and Related Pyridine Side Chain Analogues”,J. Am. Chem. Soc. 123: 9313-9323 (2001).
Nicolaou, et al., “Chemical synthesis and biological evaluation of novel epothilone B andtrans-12,13-cyclopropyl epothilone B analogues”,Tetrahedron 58: 6413-6432 (Aug. 5, 2002).

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