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Synthesis of isotopically labeled epothilones. 2014

Thota Ganesh, and Peggy J Brodie, and Abhijit Banerjee, and Susan Bane, and David G I Kingston
Department of Chemistry and Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA, 24061, USA.

The epothilones, including epothilones B and D, are macrocyclic lactones, which have potent cytotoxicities and promote the polymerization of tubulin to mictotubules by binding to and stabilizing the tubulin polymer. They have a very similar mechanism of action to paclitaxel (Taxol®). The determination of the microtubule-binding conformation of the epothilones is an important piece of information in designing improved analogs for possible clinical use, and internuclear distance information that will assist the determination of this conformation can be obtained by rotational echo double resonance (REDOR) NMR studies of microtubule-bound epothilones with appropriate stable isotope labels. Analogs of epothilone B and epothilone D with [(2) H3 ] and [(19) F] labels were prepared from an advanced precursor for potential use in REDOR NMR studies to determine internuclear distances in tubulin-bound ligand.

UI MeSH Term Description Entries
D007553 Isotope Labeling Techniques for labeling a substance with a stable or radioactive isotope. It is not used for articles involving labeled substances unless the methods of labeling are substantively discussed. Tracers that may be labeled include chemical substances, cells, or microorganisms. Isotope Labeling, Stable,Isotope-Coded Affinity Tagging,Isotopically-Coded Affinity Tagging,Affinity Tagging, Isotope-Coded,Affinity Tagging, Isotopically-Coded,Isotope Coded Affinity Tagging,Labeling, Isotope,Labeling, Stable Isotope,Stable Isotope Labeling,Tagging, Isotope-Coded Affinity,Tagging, Isotopically-Coded Affinity
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D003903 Deuterium The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. Deuterons,Hydrogen-2,Hydrogen 2
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014404 Tubulin A microtubule subunit protein found in large quantities in mammalian brain. It has also been isolated from SPERM FLAGELLUM; CILIA; and other sources. Structurally, the protein is a dimer with a molecular weight of approximately 120,000 and a sedimentation coefficient of 5.8S. It binds to COLCHICINE; VINCRISTINE; and VINBLASTINE. alpha-Tubulin,beta-Tubulin,delta-Tubulin,epsilon-Tubulin,gamma-Tubulin,alpha Tubulin,beta Tubulin,delta Tubulin,epsilon Tubulin,gamma Tubulin
D045744 Cell Line, Tumor A cell line derived from cultured tumor cells. Tumor Cell Line,Cell Lines, Tumor,Line, Tumor Cell,Lines, Tumor Cell,Tumor Cell Lines
D050257 Tubulin Modulators Agents that interact with TUBULIN to inhibit or promote polymerization of MICROTUBULES. Microtubule Modulator,Tubulin Inhibitor,Tubulin Modulator,Tubulin Polymerization Inhibitor,Tubulin Polymerization Promoter,Tubulin Promoter,Microtubule Modulators,Tubulin Inhibitors,Tubulin Polymerization Inhibitors,Tubulin Polymerization Promoters,Tubulin Promoters,Inhibitor, Tubulin,Inhibitor, Tubulin Polymerization,Inhibitors, Tubulin,Inhibitors, Tubulin Polymerization,Modulator, Microtubule,Modulator, Tubulin,Modulators, Microtubule,Modulators, Tubulin,Polymerization Inhibitor, Tubulin,Polymerization Inhibitors, Tubulin,Polymerization Promoter, Tubulin,Polymerization Promoters, Tubulin,Promoter, Tubulin,Promoter, Tubulin Polymerization,Promoters, Tubulin,Promoters, Tubulin Polymerization
D034261 Epothilones A group of 16-member MACROLIDES which stabilize MICROTUBULES in a manner similar to PACLITAXEL. They were originally found in the myxobacterium Sorangium cellulosum, now renamed to Polyangium (MYXOCOCCALES). Epothilon,Epothilone

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