WO2008132121A1 - Composés de lh-indazole-3-amine comme inhibiteurs d'ikk1 - Google Patents

Composés de lh-indazole-3-amine comme inhibiteurs d'ikk1 Download PDF

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Publication number
WO2008132121A1
WO2008132121A1 PCT/EP2008/054970 EP2008054970W WO2008132121A1 WO 2008132121 A1 WO2008132121 A1 WO 2008132121A1 EP 2008054970 W EP2008054970 W EP 2008054970W WO 2008132121 A1 WO2008132121 A1 WO 2008132121A1
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combination
compound
salt
inhibitors
solvate
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PCT/EP2008/054970
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English (en)
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John Andrew Christopher
David Kendall Jung
Karen Elizabeth Lackey
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Glaxo Group Limited
Smithkline Beecham Corporation
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Publication of WO2008132121A1 publication Critical patent/WO2008132121A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents

Definitions

  • the present invention relates to amino indazole derivatives, combinations, compositions and medicaments containing the same, as well as processes for the preparation and use of such compounds, combinations, compositions and medicaments in the treatment of disorders associated with inappropriate kinase activity, in particular disorders associated with inappropriate IKK1 activity.
  • Protein kinases serve to catalyze the phosphorylation of an amino acid side chain in various proteins by the transfer of the ⁇ -phosphate of the ATP-Mg 2+ complex to said amino acid side chain. These enzymes control the majority of the signaling processes inside cells, thereby governing cell function, growth, differentiation and destruction (apoptosis) through reversible phosphorylation of the hydroxyl groups of serine, threonine and tyrosine residues in proteins. Studies have shown that protein kinases are key regulators of many cell functions, including signal transduction, transcriptional regulation, cell motility, and cell division.
  • the protein kinase family of enzymes is typically classified into two main subfamilies: Protein Tyrosine Kinases and Protein Serine/Threonine Kinases, based on the amino acid residue they phosphorylate.
  • the protein serine/threonine kinases includes cyclic AMP- and cyclic GMP-dependent protein kinases, calcium and phospholipid dependent protein kinase, calcium- and calmodulin-dependent protein kinases, casein kinases, cell division cycle protein kinases and others. These kinases are usually cytoplasmic or associated with the particulate fractions of cells, possibly by anchoring proteins.
  • tyrosine kinases phosphorylate tyrosine residues.
  • Tyrosine kinases play an equally important role in cell regulation. These kinases include several receptors for molecules such as growth factors and hormones, including epidermal growth factor receptor, insulin receptor, platelet derived growth factor receptor and others.
  • tyrosine kinases are transmembrane proteins with their receptor domains located on the outside of the cell and their kinase domains on the inside. Much work is also in progress to identify modulators of tyrosine kinases as well.
  • Nuclear factor KB belongs to a family of closely related dimeric transcription factor complexes composed of various combinations of the Rel/NF- ⁇ B family of polypeptides.
  • the family consists of five individual gene products in mammals, ReIA (p65), NF- ⁇ B1 (p50/ p105), NF- ⁇ B2 (p49/ p100), c-Rel, and ReIB, all of which can form hetero- or homodimers.
  • These proteins share a highly homologous 300 amino acid "ReI homology domain" which contains the DNA binding and dimerization domains.
  • ReI homology domain At the extreme C-terminus of the ReI homology domain is a nuclear translocation sequence important in the transport of NF- ⁇ B from the cytoplasm to the nucleus.
  • p65 and cRel possess potent transactivation domains at their C- terminal ends.
  • NF- ⁇ B The activity of NF- ⁇ B is regulated by its interaction with a member of the inhibitor IKB family of proteins. This interaction effectively blocks the nuclear localization sequence on the NF- ⁇ B proteins, thus preventing migration of the dimer to the nucleus.
  • a wide variety of stimuli activate NF- ⁇ B through what are likely to be multiple signal transduction pathways. Included are bacterial products (LPS), some viruses (HIV-1 , HTLV-1 ), inflammatory cytokines (TNF ⁇ , IL-1), environmental and oxidative stress and DNA damaging agents. Apparently common to all stimuli however, is the phosphorylation and subsequent degradation of IKB. IKB is phosphorylated on two N-terminal serines by the recently identified IKB kinases (IKK- ⁇ and IKK- ⁇ ).
  • I KKa is also known as IKK1.
  • IKK- ⁇ is also known as IKK2.
  • Site- directed mutagenesis studies indicate that these phosphorylations are critical for the subsequent activation of NF- ⁇ B in that once phosphorylated the protein is flagged for degradation via the ubiquitin-proteasome pathway.
  • the active NF- ⁇ B complexes Free from IKB, the active NF- ⁇ B complexes are able to translocate to the nucleus where they bind in a selective manner to preferred gene-specific enhancer sequences.
  • Included in the genes regulated by NF- ⁇ B are a number of cytokines and chemokines, cell adhesion molecules, acute phase proteins, immunoregulatory proteins, eicosanoid metabolizing enzymes and anti-apoptotic genes.
  • NF- ⁇ B plays a key role in the regulated expression of a large number of pro-inflammatory mediators including cytokines such as TNF, IL-1 ⁇ , IL-6 and IL-8, cell adhesion molecules, such as ICAM and VCAM, and inducible nitric oxide synthase (iNOS).
  • cytokines such as TNF, IL-1 ⁇ , IL-6 and IL-8
  • cell adhesion molecules such as ICAM and VCAM
  • iNOS inducible nitric oxide synthase
  • NF- ⁇ B in inflammatory disorders is further strengthened by studies of airway inflammation including asthma, in which NF- ⁇ B has been shown to be activated. This activation may underlie the increased cytokine production and leukocyte infiltration characteristic of these disorders.
  • inhaled steroids are known to reduce airway hyperresponsiveness and suppress the inflammatory response in asthmatic airways.
  • glucocorticoid inhibition of NF- ⁇ B one may speculate that these effects are mediated through an inhibition of NF- ⁇ B.
  • NF- ⁇ B is normally present as an inactive cytoplasmic complex
  • recent immunohistochemical studies have indicated that NF- ⁇ B is present in the nuclei, and hence active, in the cells comprising rheumatoid synovium.
  • NF- ⁇ B has been shown to be activated in human synovial cells in response to stimulation with TNF- ⁇ or I L-1 ⁇ . Such a distribution may be the underlying mechanism for the increased cytokine and eicosanoid production characteristic of this tissue. See Roshak, A. K., et al., J. Biol.
  • IKK- ⁇ has been shown in synoviocytes of rheumatoid arthritis patients and gene transfer studies have demonstrated the central role of IKK- ⁇ in stimulated inflammatory mediator production in these cells. See Aupperele et al. J. Immunology 1999. 163:427-433 and Aupperle et al. J. Immunology 2001 ;166:2705-1 1. More recently, the intra-articular administration of a wild type IKK- ⁇ adenoviral construct was shown to cause paw swelling while intra-articular administration of dominant-negative IKK ⁇ inhibited adjuvant-induced arthritis in rat. See Tak et al. Arthritis and Rheumatism 2001 , 44:1897-1907.
  • NF- ⁇ B/Rel and IKB proteins are also likely to play a key role in neoplastic transformation and metastasis.
  • Family members are associated with cell transformation in vitro and in vivo as a result of over expression, gene amplification, gene rearrangements or translocations.
  • rearrangement and/or amplification of the genes encoding these proteins are seen in 20-25% of certain human lymphoid tumors.
  • NF- ⁇ B is activated by oncogenic ras, the most common defect in human tumors and blockade of NF- ⁇ B activation inhibits ras mediated cell transformation.
  • NF- ⁇ B NF- ⁇ B
  • TNF ionizing radiation and DNA damaging agents
  • NF- ⁇ B NF- ⁇ B
  • ionizing radiation and DNA damaging agents have all been shown to activate NF- ⁇ B which in turn leads to the upregulated expression of several anti-apoptotic proteins.
  • inhibition of NF- ⁇ B has been shown to enhance apoptotic-killing by these agents in several tumor cell types.
  • NF- ⁇ B is constitutively activated in estrogen-receptor (ER)-negative breast cancer and thus is considered a potential therapeutic target for this type of neoplasia (Ciucci et al, 2006, MoI. Pharmacol., 70 1812-1821 ). Recent reports have implicated NF- ⁇ B as an inhibitor of skeletal cell differentiation as well as a regulator of cytokine-induced muscle wasting (Guttridge et al.
  • autoimmune diseases including autoimmune diseases, inflammatory and tissue repair disorders, particularly rheumatoid arthritis, inflammatory bowel disease, asthma and COPD (chronic obstructive pulmonary disease); osteoarthritis, osteoporosis and fibrotic diseases; dermatosis, including psoriasis, atopic dermatitis and ultraviolet radiation (UV)- induced skin damage; autoimmune diseases including systemic lupus eythematosus, multiple sclerosis, psoriatic arthritis, alkylosing spondylitis, tissue and organ rejection, Alzheimer's disease, stroke, atherosclerosis, restonosis, diabetes, glomerulonephritis, cancer (e.g.
  • cancers which when treated with inhibitors of IKK function will promote cell death, including neoplastic diseases such as solid tumours, skin cancer, melanoma, lymphoma and diseases in which angiogenesis play a role), cachexia, inflammation associated with infection and certain viral infections, including acquired immune deficiency syndrome (AIDS), adult respiratory distress syndrome, and Ataxia Telangiestasia.
  • neoplastic diseases such as solid tumours, skin cancer, melanoma, lymphoma and diseases in which angiogenesis play a role
  • cachexia inflammation associated with infection and certain viral infections, including acquired immune deficiency syndrome (AIDS), adult respiratory distress syndrome, and Ataxia Telangiestasia.
  • AIDS acquired immune deficiency syndrome
  • adult respiratory distress syndrome and Ataxia Telangiestasia.
  • the present inventors have discovered novel amino-indazole compounds, which inhibit the activity of one or more protein kinases, in particular IKK1. Such compounds are therefore expected to be useful in the treatment of disorders associated with inappropriate kinase activity.
  • a compound of formula (I), or a salt, or solvate thereof for use in therapy, in particular in the treatment of a disorder mediated by inappropriate IKK1 activity.
  • a pharmaceutical composition comprising a compound of formula (I) or a salt, or solvate thereof, and one or more of pharmaceutically acceptable carriers, diluents and excipients.
  • a method of treating a disorder mediated by inappropriate IKK1 activity comprises administering a compound of formula (I) or a salt, or solvate thereof.
  • a method of treating cancer comprising administering a compound of formula (I) or a salt, or solvate thereof.
  • a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent.
  • a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent, for use in therapy.
  • a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent, for use in treating a disorder mediated by inappropriate IKK1 activity.
  • a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent, for use in treating cancer.
  • a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent, in the manufacture of a medicament for the treatment of a disorder mediated by inappropriate IKK1 activity.
  • a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent, in the manufacture of a medicament for the treatment of cancer.
  • a method of treating a disorder mediated by inappropriate IKK1 activity comprising administering a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent.
  • a method of treating cancer comprising administering a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one antineoplastic agent.
  • a pharmaceutical composition comprising a combination comprising a compound of formula (I) or a salt or solvate thereof and at least one further therapeutic agent, particularly at least one anti-neoplastic agent and one or more of pharmaceutically acceptable carriers, diluents and excipients.
  • the term "effective amount” means that amount of a drug or pharmaceutical agent that will elicit the biological or medical response of a tissue, system, animal or human that is being sought, for instance, by a researcher or clinician.
  • therapeutically effective amount means any amount which, as compared to a corresponding subject who has not received such amount, results in improved treatment, healing, prevention, or amelioration of a disease, disorder, or side effect, or a decrease in the rate of advancement of a disease or disorder.
  • the term also includes within its scope amounts effective to enhance normal physiological function.
  • solvate refers to a complex of variable stoichiometry formed by a solute (in this invention, a compound of formula (I) or a salt or physiologically functional derivative thereof) and a solvent.
  • solvents for the purpose of the invention may not interfere with the biological activity of the solute.
  • suitable solvents include, but are not limited to, water, methanol, ethanol and acetic acid.
  • the solvent used is a pharmaceutically acceptable solvent.
  • suitable pharmaceutically acceptable solvents include, without limitation, water, ethanol and acetic acid. Most preferably the solvent used is water.
  • kinase inhibitor is used to mean a compound which inhibits one or more kinase enzymes.
  • the kinase is IKK1.
  • kinase mediated disease or “disorder associated with inappropriate kinase activity” is used to mean any disease state mediated or modulated by kinase mechanisms, in particular those mediated by IKK1.
  • the present invention also covers salts of the compounds of formula (I).
  • the salts of the present invention are pharmaceutically acceptable salts.
  • suitable salts see Berge et al, J. Pharm. Sci. 1977, 66, 1-19.
  • Salts encompassed within the term “pharmaceutically acceptable salts” refer to non-toxic salts of the compounds of this invention.
  • a pharmaceutically acceptable acid addition salt can be formed by reaction of a compound of formula (I) with a suitable inorganic or organic acid (such as hydrobromic, hydrochloric, sulfuric, nitric, phosphoric, succinic, malaleic, formic, acetic, propionic, furmaric, citric, tartaric, lactic, benzoic, salicylic, glutamaic, aspartic, p-toluenesulfonic, benzenesulfonic, methanesulfonic, ethanesulfonic, naphthalenesulfonic such as 2-naphthalenesulfonic, or hexanoic acid), optionally in a suitable solvent such as an organic solvent, to give the salt which is usually isolated for example by crystallisation and filtration.
  • a suitable inorganic or organic acid such as hydrobromic, hydrochloric, sulfuric, nitric, phosphoric, succinic, malaleic, formic,
  • a pharmaceutically acceptable acid addition salt of a compound of formula (I) can comprise or be for example a hydrobromide, hydrochloride, sulfate, nitrate, phosphate, succinate, maleate, formate, acetate, propionate, fumarate, citrate, tartrate, lactate, benzoate, salicylate, glutamate, aspartate, p-toluenesulfonate, benzenesulfonate, methanesulfonate, ethanesulfonate, napthalenesulfonate (e.g. 2- naphthalenesulfonate) or hexanoate salt.
  • a hydrobromide hydrochloride, sulfate, nitrate, phosphate, succinate, maleate, formate, acetate, propionate, fumarate, citrate, tartrate, lactate, benzoate, salicylate, glutamate, aspartate, p-tolu
  • a pharmaceutically acceptable base addition salt can be formed by a reaction of a compound of formula (I) with a suitable inorganic or organic base (e.g. triethylamine, ethanolamine, triethanolamine, choline, arginine, lysine or histidine), optionally in a suitable solvent such as an organic solvent, to give the base addition salt which is usually isolated for example by crystallisation and filtration.
  • a suitable inorganic or organic base e.g. triethylamine, ethanolamine, triethanolamine, choline, arginine, lysine or histidine
  • a suitable solvent such as an organic solvent
  • compositions include pharmaceutically acceptable metal salts, for example pharmaceutically acceptable alkali-metal or alkaline-earth-metal salts such as sodium, potassium, calcium or magnesium salts; in particular pharmaceutically acceptable metal salts of one or more carboxylic acid moieties that may be present in the compound of formula (I).
  • pharmaceutically acceptable metal salts for example pharmaceutically acceptable alkali-metal or alkaline-earth-metal salts such as sodium, potassium, calcium or magnesium salts; in particular pharmaceutically acceptable metal salts of one or more carboxylic acid moieties that may be present in the compound of formula (I).
  • non-pharmaceutically acceptable salts e.g. oxalates
  • oxalates may be used, for example in the isolation of compounds of the invention, and are included within the scope of this invention.
  • the invention includes within its scope all possible stoichiometric and non- stoichiometric forms of the salts of the compounds of formula (I).
  • a pharmaceutical acceptable salt may be readily prepared by using a desired acid or base as appropriate. The salt may precipitate from solution and be collected by filtration or may be recovered by evaporation of the solvent.
  • Other salts, which are not pharmaceutically acceptable, may be useful in the preparation of compounds of this invention and these form a further aspect of the invention.
  • the compounds of formula (I) are intended for use in pharmaceutical compositions it will be readily understood that they are each preferably provided in substantially pure form, for example, at least 60% pure, more suitably at least 75% pure and preferably at least 85% pure, especially at least 98% pure (% in a weight for weight basis). While it is possible that, for use in therapy, a compound of formula (I), as well as salts and solvates thereof, may be administered as the raw chemical, it is possible to present the active ingredient as a pharmaceutical composition. Accordingly, the invention further provide a pharmaceutical composition comprising a compound of the formula (I) or a salt or solvate thereof, and one or more pharmaceutically acceptable carriers, diluents, or excipients.
  • the compounds of the formula (I) and salts and solvates thereof are as described above.
  • the carrier(s), diluent(s) or excipient(s) must be acceptable in the sense of being compatible with the other ingredients of the composition and not deleterious to the recipient thereof.
  • a process for the preparation of a pharmaceutical composition including admixing a compound of the formula (I), and/or salts and solvates thereof, with one or more pharmaceutically acceptable carriers, diluents or excipients.
  • compositions may be presented in unit dose forms containing a predetermined amount of active ingredient per unit dose.
  • a unit may contain, for example, 0.5mg to 1g, preferably 1 mg to 700mg, more preferably 5mg to 100mg of a compound of the formula (I), depending on the condition being treated, the route of administration and the age, weight and condition of the patient, or pharmaceutical compositions may be presented in unit dose forms containing a predetermined amount of active ingredient per unit dose.
  • Preferred unit dosage compositions are those containing a daily dose or sub-dose, as herein above recited, or an appropriate fraction thereof, of an active ingredient.
  • such pharmaceutical compositions may be prepared by any of the methods well known in the pharmacy art.
  • compositions may be adapted for administration by any appropriate route, for example by the oral (including buccal or sublingual), rectal, nasal, topical (including buccal, sublingual or transdermal), vaginal or parenteral (including subcutaneous, intramuscular, intravenous or intradermal) route.
  • Such compositions may be prepared by any method known in the art of pharmacy, for example by bringing into association the active ingredient with the carrier(s) or excipient(s).
  • compositions adapted for oral administration may be presented as discrete units such as capsules or tablets; powders or granules; solutions or suspensions in aqueous or non-aqueous liquids; edible foams or whips; or oil-in- water liquid emulsions or water-in-oil liquid emulsions.
  • the active drug component can be combined with an oral, non-toxic pharmaceutically acceptable inert carrier such as ethanol, glycerol, water and the like.
  • an oral, non-toxic pharmaceutically acceptable inert carrier such as ethanol, glycerol, water and the like.
  • Powders are prepared by comminuting the compound to a suitable fine size and mixing with a similarly comminuted pharmaceutical carrier such as an edible carbohydrate, as, for example, starch or mannitol. Flavoring, preservative, dispersing and coloring agent can also be present.
  • Capsules are made by preparing a powder mixture, as described above, and filling formed gelatin sheaths.
  • Glidants and lubricants such as colloidal silica, talc, magnesium stearate, calcium stearate or solid polyethylene glycol can be added to the powder mixture before the filling operation.
  • a disintegrating or solubilizing agent such as agar-agar, calcium carbonate or sodium carbonate can also be added to improve the availability of the medicament when the capsule is ingested.
  • suitable binders include starch, gelatin, natural sugars such as glucose or beta-lactose, corn sweeteners, natural and synthetic gums such as acacia, tragacanth or sodium alginate, carboxymethylcellulose, polyethylene glycol, waxes and the like.
  • Lubricants used in these dosage forms include sodium oleate, sodium stearate, magnesium stearate, sodium benzoate, sodium acetate, sodium chloride and the like.
  • Disintegrators include, without limitation, starch, methyl cellulose, agar, bentonite, xanthan gum and the like.
  • Tablets are formulated, for example, by preparing a powder mixture, granulating or slugging, adding a lubricant and disintegrant and pressing into tablets.
  • a powder mixture is prepared by mixing the compound, suitably comminuted, with a diluent or base as described above, and optionally, with a binder such as carboxymethylcellulose, an aliginate, gelatin, or polyvinyl pyrrolidone, a solution retardant such as paraffin, a resorption accelerator such as a quaternary salt and/or an absorption agent such as bentonite, kaolin or dicalcium phosphate.
  • a binder such as carboxymethylcellulose, an aliginate, gelatin, or polyvinyl pyrrolidone
  • a solution retardant such as paraffin
  • a resorption accelerator such as a quaternary salt
  • an absorption agent such as bentonite, kaolin or dicalcium phosphate.
  • the powder mixture can be granulated by wetting with a binder such as syrup, starch paste, acadia mucilage or solutions of cellulosic or polymeric materials and forcing through a screen.
  • a binder such as syrup, starch paste, acadia mucilage or solutions of cellulosic or polymeric materials and forcing through a screen.
  • the powder mixture can be run through the tablet machine and the result is imperfectly formed slugs broken into granules.
  • the granules can be lubricated to prevent sticking to the tablet forming dies by means of the addition of stearic acid, a stearate salt, talc or mineral oil.
  • the lubricated mixture is then compressed into tablets.
  • the compounds of the present invention can also be combined with a free flowing inert carrier and compressed into tablets directly without going through the granulating or slugging steps.
  • a clear or opaque protective coating consisting of a sealing coat of shellac, a coating of
  • Oral fluids such as solution, syrups and elixirs can be prepared in dosage unit form so that a given quantity contains a predetermined amount of the compound.
  • Syrups can be prepared by dissolving the compound in a suitably flavored aqueous solution, while elixirs are prepared through the use of a non-toxic alcoholic vehicle.
  • Suspensions can be formulated by dispersing the compound in a non-toxic vehicle.
  • Solubilizers and emulsifiers such as ethoxylated isostearyl alcohols and polyoxy ethylene sorbitol ethers, preservatives, flavor additive such as peppermint oil or natural sweeteners or saccharin or other artificial sweeteners, and the like can also be added.
  • dosage unit compositions for oral administration can be microencapsulated.
  • the composition can also be prepared to prolong or sustain the release as for example by coating or embedding particulate material in polymers, wax or the like.
  • the compounds of formula (I), and salts and solvates thereof, can also be administered in the form of liposome delivery systems, such as small unilamellar vesicles, large unilamellar vesicles and multilamellar vesicles.
  • liposomes can be formed from a variety of phospholipids, such as cholesterol, stearylamine or phosphatidylcholines.
  • the compounds of formula (I) and salts, and solvates thereof may also be delivered by the use of monoclonal antibodies as individual carriers to which the compound molecules are coupled.
  • the compounds may also be coupled with soluble polymers as targetable drug carriers.
  • Such polymers can include polyvinylpyrrolidone, pyran copolymer, polyhydroxypropylmethacrylamide -phenol, polyhydroxyethylaspartamidephenol, or polyethyleneoxidepolylysine substituted with palmitoyl residues.
  • the compounds may be coupled to a class of biodegradable polymers useful in achieving controlled release of a drug, for example, polylactic acid, polepsilon caprolactone, polyhydroxy butyric acid, polyorthoesters, polyacetals, polydihydropyrans, polycyanoacrylates and cross-linked or amphipathic block copolymers of hydrogels.
  • a class of biodegradable polymers useful in achieving controlled release of a drug, for example, polylactic acid, polepsilon caprolactone, polyhydroxy butyric acid, polyorthoesters, polyacetals, polydihydropyrans, polycyanoacrylates and cross-linked or amphipathic block copolymers of hydrogels.
  • compositions adapted for transdermal administration may be presented as discrete patches intended to remain in intimate contact with the epidermis of the recipient for a prolonged period of time.
  • the active ingredient may be delivered from the patch by iontophoresis as generally described in Pharmaceutical Research, 3(6), 318 (1986).
  • compositions adapted for topical administration may be formulated as ointments, creams, suspensions, lotions, powders, solutions, pastes, gels, sprays, aerosols or oils.
  • compositions are preferably applied as a topical ointment or cream.
  • the active ingredient may be employed with either a paraffinic or a water-miscible ointment base.
  • the active ingredient may be formulated in a cream with an oil-in-water cream base or a water-in-oil base.
  • Pharmaceutical compositions adapted for topical administrations to the eye include eye drops wherein the active ingredient is dissolved or suspended in a suitable carrier, especially an aqueous solvent.
  • compositions adapted for topical administration in the mouth include lozenges, pastilles and mouth washes.
  • compositions adapted for rectal administration may be presented as suppositories or as enemas.
  • Dosage forms for nasal or inhaled administration may conveniently be formulated as aerosols, solutions, drops, gels or dry powders.
  • compositions adapted for nasal administration wherein the carrier is a solid include a coarse powder having a particle size for example in the range 20 to
  • compositions wherein the carrier is a liquid for administration as a nasal spray or as nasal drops, include aqueous or oil solutions of the active ingredient.
  • the compound of formula (I) may be formulated as a fluid formulation for delivery from a fluid dispenser, for example a fluid dispenser having a dispensing nozzle or dispensing orifice through which a metered dose of the fluid formulation is dispensed upon the application of a user-applied force to a pump mechanism of the fluid dispenser.
  • a fluid dispenser for example a fluid dispenser having a dispensing nozzle or dispensing orifice through which a metered dose of the fluid formulation is dispensed upon the application of a user-applied force to a pump mechanism of the fluid dispenser.
  • Such fluid dispensers are generally provided with a reservoir of multiple metered doses of the fluid formulation, the doses being dispensable upon sequential pump actuations.
  • the dispensing nozzle or orifice may be configured for insertion into the nostrils of the user for spray dispensing of the fluid formulation into the nasal cavity.
  • a fluid dispenser of the aforementioned type is described and illustrated in WO05/044354, the entire content of which is
  • the dispenser has a housing which houses a fluid discharge device having a compression pump mounted on a container for containing a fluid formulation.
  • the housing has at least one finger-operable side lever which is movable inwardly with respect to the housing to cam the container upwardly in the housing to cause the pump to compress and pump a metered dose of the formulation out of a pump stem through a nasal nozzle of the housing.
  • the fluid dispenser is of the general type illustrated in Figures 30-40 of WO05/044354.
  • the compound of formula (I) is in a particle-size-reduced form, and more preferably the size-reduced form is obtained or obtainable by micronisation.
  • the preferable particle size of the size-reduced (e.g. micronised) compound (or salt or solvate) is defined by a D50 value of about 0.5 to about 10 microns (for example as measured using laser diffraction).
  • Aerosol compositions can comprise a solution or fine suspension of the active substance in a pharmaceutically acceptable aqueous or non-aqueous solvent. Aerosol compositions can be presented in single or multidose quantities in sterile form in a sealed container, which can take the form of a cartridge or refill for use with an atomising device or inhaler. Alternatively the sealed container may be a unitary dispensing device such as a single dose nasal inhaler or an aerosol dispenser fitted with a metering valve (metered dose inhaler) which is intended for disposal once the contents of the container have been exhausted.
  • a metering valve metered dose inhaler
  • the dosage form comprises an aerosol dispenser
  • it preferably contains a suitable propellant under pressure such as compressed air, carbon dioxide or an organic propellant such as a hydrofluorocarbon (HFC).
  • suitable HFC propellants include 1 ,1 ,1 ,2,3,3,3-heptafluoropropane and 1 ,1 ,1 ,2-tetrafluoroethane.
  • the aerosol dosage forms can also take the form of a pump-atomiser.
  • the pressurised aerosol may contain a solution or a suspension of the active compound. This may require the incorporation of additional excipients e.g. co-solvents and/or surfactants to improve the dispersion characteristics and homogeneity of suspension formulations. Solution formulations may also require the addition of co-solvents such as ethanol.
  • Other excipient modifiers may also be incorporated to improve, for example, the stability and/or taste and/or fine particle mass characteristics (amount and/or profile) of the formulation.
  • the pharmaceutical composition is a dry powder inhalable composition.
  • a dry powder inhalable composition can comprise a powder base such as lactose, glucose, trehalose, mannitol or starch, the compound of formula (I) and salts and solvates thereof (preferably in particle-size-reduced form, e.g. in micronised form), and optionally a performance modifier such as L-leucine or another amino acid, cellobiose octaacetate and/or metals salts of stearic acid such as magnesium or calcium stearate.
  • the dry powder inhalable composition comprises a dry powder blend of lactose and the compound of formula (I) or salt thereof.
  • the lactose is preferably lactose hydrate e.g. lactose monohydrate and/or is preferably inhalation- grade and/or fine-grade lactose.
  • the particle size of the lactose is defined by 90% or more (by weight or by volume) of the lactose particles being less than 1000 microns (micrometres) (e.g. 10-1000 microns e.g. 30-1000 microns) in diameter, and/or 50% or more of the lactose particles being less than 500 microns (e.g. 10-500 microns) in diameter. More preferably, the particle size of the lactose is defined by 90% or more of the lactose particles being less than 300 microns (e.g.
  • the particle size of the lactose is defined by 90% or more of the lactose particles being less than 100-200 microns in diameter, and/or 50% or more of the lactose particles being less than 40- 70 microns in diameter.
  • a suitable inhalation-grade lactose is E9334 lactose (10% fines) (Borculo Domo Ingredients, Hanzeplein 25, 8017 JD Zwolle, Netherlands).
  • a pharmaceutical composition for inhaled administration can be incorporated into a plurality of sealed dose containers (e.g. containing the dry powder composition) mounted longitudinally in a strip or ribbon inside a suitable inhalation device.
  • the container is rupturable or peel-openable on demand and the dose of e.g. the dry powder composition can be administered by inhalation via the device such as the DISKUS TM device, marketed by GlaxoSmithKline.
  • the DISKUS TM inhalation device is for example described in GB 2242134 A, and in such a device at least one container for the pharmaceutical composition in powder form (the container or containers preferably being a plurality of sealed dose containers mounted longitudinally in a strip or ribbon) is defined between two members peelably secured to one another; the device comprises: a means of defining an opening station for the said container or containers; a means for peeling the members apart at the opening station to open the container; and an outlet, communicating with the opened container, through which a user can inhale the pharmaceutical composition in powder form from the opened container.
  • compositions adapted for vaginal administration may be presented as pessaries, tampons, creams, gels, pastes, foams or spray compositions.
  • compositions adapted for parenteral administration include aqueous and non-aqueous sterile injection solutions which may contain anti-oxidants, buffers, bacteriostats and solutes which render the composition isotonic with the blood of the intended recipient; and aqueous and non-aqueous sterile suspensions which may include suspending agents and thickening agents.
  • the compositions may be presented in unit-dose or multi-dose containers, for example sealed ampoules and vials, and may be stored in a freeze-dried (lyophilized) condition requiring only the addition of the sterile liquid carrier, for example water for injections, immediately prior to use.
  • Extemporaneous injection solutions and suspensions may be prepared from sterile powders, granules and tablets.
  • compositions may include other agents conventional in the art having regard to the type of composition in question, for example those suitable for oral administration may include flavouring agents.
  • a therapeutically effective amount of a compound of the present invention will depend upon a number of factors including, for example, the age and weight of the animal, the precise condition requiring treatment and its severity, the nature of the composition, and the route of administration, and will ultimately be at the discretion of the attendant physician or veterinarian.
  • an effective amount of a compound of formula (I) for the treatment of diseases associated with inappropriate kinase activity will generally be in the range of 0.1 to 100 mg/kg body weight of recipient (mammal) per day and more usually in the range of 1 to 10 mg/kg body weight per day.
  • the actual amount per day would usually be from 70 to 700 mg and this amount may be given in a single dose per day or more usually in a number (such as two, three, four, five or six) of sub-doses per day such that the total daily dose is the same.
  • An effective amount of a salt or solvate, or physiologically functional derivative thereof may be determined as a proportion of the effective amount of the compound of formula (I) per se. It is envisaged that similar dosages would be appropriate for treatment of the other conditions referred to above.
  • the compounds of formula (I) and salts and solvates thereof, are believed to have utility in disorders associated with inappropriate kinase activity as a result of inhibition of protein kinase activity.
  • the present invention thus also provides a compound of formula (I) or a salt or solvate thereof, for use in therapy, and particularly in the treatment of disorders associated with inappropriate kinase activity, in particular, inappropriate IKK1 activity.
  • the inappropriate kinase activity referred to herein is any kinase activity that deviates from the normal kinase activity expected in a particular mammalian subject. Inappropriate kinase activity may take the form of, for instance, an abnormal increase in activity, or an aberration in the timing and or control of kinase activity. Such inappropriate activity may result then, for example, from over expression or mutation of the protein kinase leading to inappropriate or uncontrolled activation.
  • the present invention is directed to methods of regulating, modulating, or inhibiting kinase for the prevention and/or treatment of disorders related to unregulated kinase activity.
  • the compounds of the present invention can also be used in the treatment of disorders associated with inappropriate kinase activity, including cancer.
  • Disorders associated with inappropriate IKK1 activity include autoimmune diseases, inflammatory and tissue repair disorders, particularly rheumatoid arthritis, inflammatory bowel disease, asthma and COPD (chronic obstructive pulmonary disease); osteoarthritis, osteoporosis and fibrotic diseases; dermatosis, including psoriasis, atopic dermatitis and ultraviolet radiation (UV)-induced skin damage; autoimmune diseases including systemic lupus eythematosus, multiple sclerosis, psoriatic arthritis, alkylosing spondylitis, tissue and organ rejection, Alzheimer's disease, stroke, atherosclerosis, restonosis, diabetes, glomerulonephritis, cancer (e.g.
  • cancers which when treated with inhibitors of IKK function will promote cell death, including neoplastic diseases such as solid tumours, skin cancer, melanoma, lymphoma and diseases in which angiogenesis play a role), cachexia, inflammation associated with infection and certain viral infections, including acquired immune deficiency syndrome (AIDS), adult respiratory distress syndrome, and Ataxia Telangiestasia.
  • neoplastic diseases such as solid tumours, skin cancer, melanoma, lymphoma and diseases in which angiogenesis play a role
  • cachexia inflammation associated with infection and certain viral infections, including acquired immune deficiency syndrome (AIDS), adult respiratory distress syndrome, and Ataxia Telangiestasia.
  • AIDS acquired immune deficiency syndrome
  • adult respiratory distress syndrome and Ataxia Telangiestasia.
  • a further aspect of the invention provides a method of treatment of a disorder associated with inappropriate kinase activity, comprising administering a compound of formula (I) or a salt, or solvate thereof.
  • the kinase is IKK1.
  • the disorder is cancer (e.g. cancers which when treated with inhibitors of IKK function will promote cell death, including neoplastic diseases such as solid tumours, skin cancer, melanoma, lymphoma and diseases in which angiogenesis play a role).
  • a further aspect of the present invention provides the use of a compound of formula (I), or a salt or solvate thereof in the manifacture of a medicament for the treatment of a disorder associated with inappropriate kinase activity.
  • the kinase is IKK1.
  • the disorder is cancer (e.g. cancers which when treated with inhibitors of IKK function will promote cell death, including neoplastic diseases such as solid tumours, skin cancer, melanoma, lymphoma and diseases in which angiogenesis play a role).
  • the compound of formula (I) for use in the instant invention and their salts and solvates thereof may be used alone or in combination with one or more other therapeutic agents.
  • the invention thus provides in a further aspect a combination comprising a compound of formula (I) or a salt or solvate thereof with a further therapeutic agent or agents, compositions and medicaments comprising the combination and use of the combination, compositions and medicaments in therapy, in particular in the treatment of diseases associated with inappropriate kinase activity, in particular IKK1.
  • Combination therapy is rapidly becoming the norm in cancer treatment, rather than the exception.
  • Oncologists are continually looking for anti-neoplastic compounds which when utilized in combination provides a more effective and/or enhanced treatment to the individual suffering the effects of cancer.
  • successful combination therapy provides improved and even synergistic effect over monotherapy.
  • combination therapies according to the present invention thus comprise the administration of at least one compound of formula (I) or a salt or solvate thereof, and the use of at least one other cancer treatment method.
  • combination therapies according to the present invention comprise the administration of at least one compound of formula (I) or a salt or solvate thereof, and at least one other pharmaceutically active agent, preferably an anti-neoplastic agent.
  • the compound(s) of formula (I)) and the other pharmaceutically active agent(s) may be administered together or separately and, when administered separately this may occur simultaneously or sequentially in any order (including administration on different days according to the therapy regimen) and by any convenient route.
  • the amounts of the compound(s) of formula (I) and the other pharmaceutically active agent(s) and the relative timings of administration will be selected in order to achieve the desired combined therapeutic effect.
  • the further anti-cancer therapy is at least one additional antineoplastic agent.
  • anti-neoplastic agent that has activity versus a susceptible tumor being treated may be utilized in the combination.
  • Typical anti-neoplastic agents useful include, but are not limited to, anti-microtubule agents such as diterpenoids and vinca alkaloids; platinum coordination complexes; alkylating agents such as nitrogen mustards, oxazaphosphorines, alkylsulfonates, nitrosoureas, and triazenes; antibiotic agents such as anthracyclins, actinomycins and bleomycins; topoisomerase Il inhibitors such as epipodophyllotoxins; antimetabolites such as purine and pyrimidine analogues and anti-folate compounds; topoisomerase I inhibitors such as camptothecins; hormones and hormonal analogues; signal transduction pathway inhibitors; nonreceptor tyrosine kinase angiogenesis inhibitors; immunotherapeutic agents; proapoptotic agents; and cell cycle signaling inhibitors.
  • Anti-microtubule or anti-mitotic agents are examples of anti-microtubule or anti-mitotic agents.
  • Anti-microtubule or anti-mitotic agents are phase specific agents active against the microtubules of tumor cells during M or the mitosis phase of the cell cycle.
  • anti-microtubule agents include, but are not limited to, diterpenoids and vinca alkaloids.
  • Diterpenoids which are derived from natural sources, are phase specific anti -cancer agents that operate at the G 2 /M phases of the cell cycle. It is believed that the diterpenoids stabilize the ⁇ -tubulin subunit of the microtubules, by binding with this protein. Disassembly of the protein appears then to be inhibited with mitosis being arrested and cell death following. Examples of diterpenoids include, but are not limited to, paclitaxel and its analog docetaxel.
  • Paclitaxel 5 ⁇ ,20-epoxy-1 ,2 ⁇ ,4,7 ⁇ ,10 ⁇ ,13 ⁇ -hexa-hydroxytax-1 1-en-9-one 4,10- diacetate 2-benzoate 13-ester with (2R,3S)-N-benzoyl-3-phenylisoserine; is a natural diterpene product isolated from the Pacific yew tree Taxus brevifolia and is commercially available as an injectable solution TAXOL®. It is a member of the taxane family of terpenes.
  • Paclitaxel has been approved for clinical use in the treatment of refractory ovarian cancer in the United States (Markman et al., Yale Journal of Biology and Medicine, 64:583, 1991 ; McGuire et al., Ann. Intern, Med., 11 1 :273,1989) and for the treatment of breast cancer (Holmes et al., J. Nat. Cancer Inst., 83:1797,1991.) It is a potential candidate for treatment of neoplasms in the skin (Einzig et. al., Proc. Am. Soc. Clin. Oncol., 20:46) and head and neck carcinomas (Forastire et. al., Sem. Oncol., 20:56, 1990).
  • the compound also shows potential for the treatment of polycystic kidney disease (Woo et. al., Nature, 368:750. 1994), lung cancer and malaria.
  • Treatment of patients with paclitaxel results in bone marrow suppression (multiple cell lineages, Ignoff, RJ. et. al, Cancer Chemotherapy Pocket Guide A 1998) related to the duration of dosing above a threshold concentration (5OnM) (Kearns, CM. et. al., Seminars in Oncology, 3(6) p.16-23, 1995).
  • 5OnM threshold concentration
  • Docetaxel (2R,3S)- N-carboxy-3-phenylisoserine,N-te/f-butyl ester, 13-ester with 5 ⁇ - 20-epoxy-1 ,2 ⁇ ,4,7 ⁇ ,10 ⁇ ,13 ⁇ -hexahydroxytax-1 1-en-9-one 4-acetate 2-benzoate, trihydrate; is commercially available as an injectable solution as TAXOTERE®.
  • Docetaxel is indicated for the treatment of breast cancer.
  • Docetaxel is a semisynthetic derivative of paclitaxel q.v., prepared using a natural precursor, 10- deacetyl-baccatin III, extracted from the needle of the European Yew tree.
  • Vinca alkaloids are phase specific anti-neoplastic agents derived from the periwinkle plant. Vinca alkaloids act at the M phase (mitosis) of the cell cycle by binding specifically to tubulin. Consequently, the bound tubulin molecule is unable to polymerize into microtubules. Mitosis is believed to be arrested in metaphase with cell death following. Examples of vinca alkaloids include, but are not limited to, vinblastine, vincristine, and vinorelbine.
  • Vinblastine vincaleukoblastine sulfate
  • VELBAN® an injectable solution.
  • Myelosuppression is the dose limiting side effect of vinblastine.
  • Vincristine, vincaleukoblastine, 22-oxo-, sulfate, is commercially available as
  • ONCOVIN® as an injectable solution.
  • Vincristine is indicated for the treatment of acute leukemias and has also found use in treatment regimens for Hodgkin's and non-Hodgkin's malignant lymphomas.
  • Alopecia and neurologic effects are the most common side effect of vincristine and to a lesser extent myelosupression and gastrointestinal mucositis effects occur.
  • Vinorelbine 3',4'-didehydro -4'-deoxy-C'-norvincaleukoblastine [R-(R * ,R * )-2,3- dihydroxybutanedioate (1 :2)(salt)], commercially available as an injectable solution of vinorelbine tartrate (NAVELBINE®), is a semisynthetic vinca alkaloid.
  • Vinorelbine is indicated as a single agent or in combination with other chemotherapeutic agents, such as cisplatin, in the treatment of various solid tumors, particularly non-small cell lung, advanced breast, and hormone refractory prostate cancers. Myelosuppression is the most common dose limiting side effect of vinorelbine.
  • Platinum coordination complexes are non-phase specific anti-cancer agents, which are interactive with DNA.
  • the platinum complexes enter tumor cells, undergo, aquation and form intra- and interstrand crosslinks with DNA causing adverse biological effects to the tumor.
  • Examples of platinum coordination complexes include, but are not limited to, oxaliplatin, cisplatin and carboplatin.
  • Cisplatin cis-diamminedichloroplatinum
  • PLATINOL® an injectable solution.
  • Cisplatin is primarily indicated in the treatment of metastatic testicular and ovarian cancer and advanced bladder cancer.
  • Carboplatin platinum, diammine [1 ,1-cyclobutane-dicarboxylate(2-)-O,O'], is commercially available as PARAPLATIN® as an injectable solution.
  • Carboplatin is primarily indicated in the first and second line treatment of advanced ovarian carcinoma.
  • Alkylating agents are non-phase anti-cancer specific agents and strong electrophiles. Typically, alkylating agents form covalent linkages, by alkylation, to DNA through nucleophilic moieties of the DNA molecule such as phosphate, amino, sulfhydryl, hydroxyl, carboxyl, and imidazole groups. Such alkylation disrupts nucleic acid function leading to cell death.
  • alkylating agents include, but are not limited to, nitrogen mustards such as cyclophosphamide, melphalan, and chlorambucil; alkyl sulfonates such as busulfan; nitrosoureas such as carmustine; and triazenes such as dacarbazine.
  • Cyclophosphamide 2-[bis(2-chloroethyl)amino]tetrahydro-2H-1 ,3,2- oxazaphosphorine 2-oxide monohydrate, is commercially available as an injectable solution or tablets as CYTOXAN®. Cyclophosphamide is indicated as a single agent or in combination with other chemotherapeutic agents, in the treatment of malignant lymphomas, multiple myeloma, and leukemias. Melphalan, 4-[bis(2-chloroethyl)amino]-L-phenylalanine, is commercially available as an injectable solution or tablets as ALKERAN®. Melphalan is indicated for the palliative treatment of multiple myeloma and non-resectable epithelial carcinoma of the ovary. Bone marrow suppression is the most common dose limiting side effect of melphalan.
  • Chlorambucil 4-[bis(2-chloroethyl)amino]benzenebutanoic acid, is commercially available as LEUKERAN® tablets. Chlorambucil is indicated for the palliative treatment of chronic lymphatic leukemia, and malignant lymphomas such as lymphosarcoma, giant follicular lymphoma, and Hodgkin's disease.
  • Busulfan 1 ,4-butanediol dimethanesulfonate, is commercially available as MYLERAN® TABLETS. Busulfan is indicated for the palliative treatment of chronic myelogenous leukemia.
  • Carmustine 1 ,3-[bis(2-chloroethyl)-1 -nitrosourea, is commercially available as single vials of lyophilized material as BiCNU®. Carmustine is indicated for the palliative treatment as a single agent or in combination with other agents for brain tumors, multiple myeloma, Hodgkin's disease, and non-Hodgkin's lymphomas.
  • dacarbazine 5-(3,3-dimethyl-1-triazeno)-imidazole-4-carboxamide, is commercially available as single vials of material as DTIC-Dome®. dacarbazine is indicated for the treatment of metastatic malignant melanoma and in combination with other agents for the second line treatment of Hodgkin's Disease.
  • Antibiotic anti-neoplasties are:
  • Antibiotic anti-neoplasties are non-phase specific agents, which bind or intercalate with DNA. Typically, such action results in stable DNA complexes or strand breakage, which disrupts ordinary function of the nucleic acids leading to cell death.
  • antibiotic anti-neoplastic agents include, but are not limited to, actinomycins such as dactinomycin, anthrocyclins such as daunorubicin and doxorubicin; and bleomycins.
  • Dactinomycin also know as Actinomycin D, is commercially available in injectable form as COSMEGEN®. Dactinomycin is indicated for the treatment of Wilm's tumor and rhabdomyosarcoma.
  • Daunorubicin (8S-cis-)-8-acetyl-10-[(3-amino-2,3,6-trideoxy- ⁇ -L-lyxo- hexopyranosyl)oxy]-7,8,9, 10-tetrahydro-6,8, 1 1 -trihydroxy-1 -methoxy-5, 12 naphthacenedione hydrochloride, is commercially available as a liposomal injectable form as DAUNOXOME® or as an injectable as CERUBIDINE®. Daunorubicin is indicated for remission induction in the treatment of acute nonlymphocytic leukemia and advanced HIV associated Kaposi's sarcoma.
  • Doxorubicin (8S, 10S)-10-[(3-amino-2,3,6-trideoxy- ⁇ -L-lyxo-hexopyranosyl)oxy]-8- glycoloyl, 7,8,9, 10-tetrahydro-6, 8,1 1-trihydroxy-1-methoxy-5,12 naphthacenedione hydrochloride, is commercially available as an injectable form as RUBEX® or ADRIAMYCIN RDF®.
  • Doxorubicin is primarily indicated for the treatment of acute lymphoblastic leukemia and acute myeloblasts leukemia, but is also a useful component in the treatment of some solid tumors and lymphomas.
  • Bleomycin a mixture of cytotoxic glycopeptide antibiotics isolated from a strain of Streptomyces verticillus, is commercially available as BLENOXAN E®. Bleomycin is indicated as a palliative treatment, as a single agent or in combination with other agents, of squamous cell carcinoma, lymphomas, and testicular carcinomas.
  • Topoisomerase Il inhibitors include, but are not limited to, epipodophyllotoxins.
  • Epipodophyllotoxins are phase specific anti-neoplastic agents derived from the mandrake plant. Epipodophyllotoxins typically affect cells in the S and G 2 phases of the cell cycle by forming a ternary complex with topoisomerase Il and DNA causing DNA strand breaks. The strand breaks accumulate and cell death follows. Examples of epipodophyllotoxins include, but are not limited to, etoposide and teniposide.
  • Etoposide 4'-demethyl-epipodophyllotoxin 9[4,6-0-(R )-ethylidene- ⁇ -D- glucopyranoside] is commercially available as an injectable solution or capsules as VePESID® and is commonly known as VP-16. Etoposide is indicated as a single agent or in combination with other chemotherapy agents in the treatment of testicular and non-small cell lung cancers.
  • Teniposide 4'-demethyl-epipodophyllotoxin 9[4,6-0-(R )-thenylidene- ⁇ -D- glucopyranoside], is commercially available as an injectable solution as VUMON® and is commonly known as VM-26. Teniposide is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia in children.
  • Antimetabolite neoplastic agents are:
  • Antimetabolite neoplastic agents are phase specific anti-neoplastic agents that act at S phase (DNA synthesis) of the cell cycle by inhibiting DNA synthesis or by inhibiting purine or pyrimidine base synthesis and thereby limiting DNA synthesis. Consequently, S phase does not proceed and cell death follows.
  • antimetabolite anti-neoplastic agents include, but are not limited to, fluorouracil, methotrexate, cytarabine, mecaptopurine, thioguanine, and gemcitabine. 5-fluorouracil, 5-fluoro-2,4- (1 H,3H) pyrimidinedione, is commercially available as fluorouracil.
  • 5-fluorouracil leads to inhibition of thymidylate synthesis and is also incorporated into both RNA and DNA. The result typically is cell death.
  • 5-fluorouracil is indicated as a single agent or in combination with other chemotherapy agents in the treatment of carcinomas of the breast, colon, rectum, stomach and pancreas.
  • Other fluoropyrimidine analogs include 5-fluoro deoxyuridine (floxuridine) and 5-fluorodeoxyuridine monophosphate.
  • Cytarabine 4-amino-1- ⁇ -D-arabinofuranosyl-2 (I H)-pyrimidinone, is commercially available as CYTOSAR-U® and is commonly known as Ara-C. It is believed that cytarabine exhibits cell phase specificity at S-phase by inhibiting DNA chain elongation by terminal incorporation of cytarabine into the growing DNA chain. Cytarabine is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia. Other cytidine analogs include 5- azacytidine and 2',2'-difluorodeoxycytidine (gemcitabine).
  • Mercaptopurine 1 ,7-dihydro-6H-purine-6-thione monohydrate, is commercially available as PURINETHOL®.
  • Mercaptopurine exhibits cell phase specificity at S- phase by inhibiting DNA synthesis by an as of yet unspecified mechanism.
  • Mercaptopurine is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia.
  • a useful mercaptopurine analog is azathioprine.
  • Thioguanine 2-amino-1 ,7-dihydro-6H-purine-6-thione
  • TABLOID® Thioguanine exhibits cell phase specificity at S-phase by inhibiting DNA synthesis by an as of yet unspecified mechanism.
  • Thioguanine is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia.
  • Other purine analogs include pentostatin, erythrohydroxynonyladenine, fludarabine phosphate, and cladribine.
  • Gemcitabine 2'-deoxy-2', 2'-difluorocytidine monohydrochloride ( ⁇ -isomer), is commercially available as GEMZAR®. Gemcitabine exhibits cell phase specificity at S-phase and by blocking progression of cells through the G1/S boundary. Gemcitabine is indicated in combination with cisplatin in the treatment of locally advanced non-small cell lung cancer and alone in the treatment of locally advanced pancreatic cancer.
  • Methotrexate N-[4[[(2,4-diamino-6-pteridinyl) methyl]methylamino] benzoyl]-L- glutamic acid, is commercially available as methotrexate sodium. Methotrexate exhibits cell phase effects specifically at S-phase by inhibiting DNA synthesis, repair and/or replication through the inhibition of dyhydrofolic acid reductase which is required for synthesis of purine nucleotides and thymidylate.
  • Methotrexate is indicated as a single agent or in combination with other chemotherapy agents in the treatment of choriocarcinoma, meningeal leukemia, non-Hodgkin's lymphoma, and carcinomas of the breast, head, neck, ovary and bladder.
  • Camptothecins including, camptothecin and camptothecin derivatives are available or under development as Topoisomerase I inhibitors. Camptothecins cytotoxic activity is believed to be related to its Topoisomerase I inhibitory activity. Examples of camptothecins include, but are not limited to irinotecan, topotecan, and the various optical forms of 7-(4-methylpiperazino-methylene)-10,11-ethylenedioxy-20- camptothecin described below.
  • Irinotecan is a derivative of camptothecin which binds, along with its active metabolite SN-38, to the topoisomerase I - DNA complex.
  • cytotoxicity occurs as a result of irreparable double strand breaks caused by interaction of the topoisomerase I : DNA : irintecan or SN-38 ternary complex with replication enzymes.
  • Irinotecan is indicated for treatment of metastatic cancer of the colon or rectum.
  • Topotecan HCI (S)-10-[(dimethylamino)methyl]-4-ethyl-4,9-dihydroxy-1 H- pyrano[3',4',6,7]indolizino[1 ,2-b]quinoline-3,14-(4H,12H)-dione monohydrochloride, is commercially available as the injectable solution HYCAMTI N®.
  • Topotecan is a derivative of camptothecin which binds to the topoisomerase I - DNA complex and prevents religation of singles strand breaks caused by Topoisomerase I in response to torsional strain of the DNA molecule. Topotecan is indicated for second line treatment of metastatic carcinoma of the ovary and small cell lung cancer.
  • Hormones and hormonal analogues are hormones and hormonal analogues:
  • Hormones and hormonal analogues are useful compounds for treating cancers in which there is a relationship between the hormone(s) and growth and/or lack of growth of the cancer.
  • hormones and hormonal analogues useful in cancer treatment include, but are not limited to, adrenocorticosteroids such as prednisone and prednisolone which are useful in the treatment of malignant lymphoma and acute leukemia in children ; aminoglutethimide and other aromatase inhibitors such as anastrozole, letrazole, vorazole, and exemestane useful in the treatment of adrenocortical carcinoma and hormone dependent breast carcinoma containing estrogen receptors; progestrins such as megestrol acetate useful in the treatment of hormone dependent breast cancer and endometrial carcinoma; estrogens, androgens, and anti-androgens such as flutamide, nilutamide, bicalutamide, cyproterone acetate and 5 ⁇ -reductases
  • GnRH gonadotropin-releasing hormone
  • LH leutinizing hormone
  • FSH follicle stimulating hormone
  • Signal transduction pathway inhibitors are those inhibitors, which block or inhibit a chemical process which evokes an intracellular change. As used herein this change is cell proliferation or differentiation.
  • Signal tranduction inhibitors useful in the present invention include inhibitors of receptor tyrosine kinases, non-receptor tyrosine kinases, SH2/SH3domain blockers, serine/threonine kinases, phosphotidyl inositol-3 kinases, myo-inositol signaling, and Ras oncogenes.
  • protein tyrosine kinases catalyse the phosphorylation of specific tyrosyl residues in various proteins involved in the regulation of cell growth.
  • protein tyrosine kinases can be broadly classified as receptor or non-receptor kinases.
  • Receptor tyrosine kinases are transmembrane proteins having an extracellular ligand binding domain, a transmembrane domain, and a tyrosine kinase domain. Receptor tyrosine kinases are involved in the regulation of cell growth and are generally termed growth factor receptors. Inappropriate or uncontrolled activation of many of these kinases, i.e. aberrant kinase growth factor receptor activity, for example by over-expression or mutation, has been shown to result in uncontrolled cell growth. Accordingly, the aberrant activity of such kinases has been linked to malignant tissue growth. Consequently, inhibitors of such kinases could provide cancer treatment methods.
  • Growth factor receptors include, for example, epidermal growth factor receptor (EGFr), platelet derived growth factor receptor (PDGFr), erbB2, erbB4, ret, vascular endothelial growth factor receptor (VEGFr), tyrosine kinase with immunoglobulin-like and epidermal growth factor homology domains (TIE-2), insulin growth factor -I (IGFI) receptor, macrophage colony stimulating factor (cfms), BTK, ckit, cmet, fibroblast growth factor (FGF) receptors, Trk receptors (TrkA, TrkB, and TrkC), ephrin (eph) receptors, and the RET protooncogene.
  • EGFr epidermal growth factor receptor
  • PDGFr platelet derived growth factor receptor
  • erbB2 erbB2
  • VEGFr vascular endothelial growth factor receptor
  • TIE-2 immunoglobulin-like and epidermal growth factor homo
  • inhibitors of growth receptors include ligand antagonists, antibodies, tyrosine kinase inhibitors and anti-sense oligonucleotides.
  • Growth factor receptors and agents that inhibit growth factor receptor function are described, for instance, in Kath, John C, Exp. Opin. Ther. Patents (2000) 10(6):803-818; Shawver et al DDT VoI 2, No. 2 February 1997; and Lofts, F. J. et al, "Growth factor receptors as targets", New Molecular Targets for Cancer Chemotherapy, ed. Workman, Paul and Kerr, David, CRC press 1994, London.
  • Non-receptor tyrosine kinases which are not growth factor receptor kinases are termed nonreceptor tyrosine kinases.
  • Non-receptor tyrosine kinases useful in the present invention include cSrc, Lck, Fyn, Yes, Jak, cAbl, FAK (Focal adhesion kinase), Brutons tyrosine kinase, and Bcr-Abl.
  • Such non-receptor kinases and agents which inhibit non-receptor tyrosine kinase function are described in Sinh, S. and Corey, S. J., (1999) Journal of Hematotherapy and Stem Cell Research 8 (5): 465 - 80; and Bolen, J. B., Brugge, J. S., (1997) Annual review of Immunology. 15: 371-404.
  • SH2/SH3 domain blockers are agents that disrupt SH2 or SH3 domain binding in a variety of enzymes or adaptor proteins including, PI3-K p85 subunit, Src family kinases, adaptor molecules (She, Crk, Nek, Grb2) and Ras-GAP.
  • SH2/SH3 domains as targets for anti-cancer drugs are discussed in Smithgall, T. E. (1995), Journal of Pharmacological and Toxicological Methods. 34(3) 125-32.
  • Inhibitors of Serine/Threonine Kinases including MAP kinase cascade blockers which include blockers of Raf kinases (rafk), Mitogen or Extracellular Regulated Kinase (MEKs), and Extracellular Regulated Kinases (ERKs); and Protein kinase C family member blockers including blockers of PKCs (alpha, beta, gamma, epsilon, mu, lambda, iota, zeta).
  • IkB kinase family IKKa, IKKb
  • PKB family kinases akt kinase family members
  • TGF beta receptor kinases TGF beta receptor kinases.
  • Serine/Threonine kinases and inhibitors thereof are described in Yamamoto, T., Taya, S., Kaibuchi, K., (1999), Journal of Biochemistry. 126 (5) 799-803; Brodt, P, Samani, A., and Navab, R. (2000), Biochemical Pharmacology, 60. 1 101-1107; Massague, J., Weis-Garcia, F. (1996) Cancer Surveys. 27:41-64; Philip, P.A., and Harris, A.L. (1995), Cancer Treatment and Research. 78: 3-27, Lackey, K. et al Bioorganic and Medicinal Chemistry Letters, (10), 2000, 223-226; U.S. Patent No. 6,268,391 ; and Martinez- lacaci, L., et al, Int. J. Cancer (2000), 88(1 ), 44-52.
  • Inhibitors of Phosphotidyl inositol-3 Kinase family members including blockers of PI3-kinase, ATM, DNA-PK, and Ku are also useful in the present invention.
  • Such kinases are discussed in Abraham, RT. (1996), Current Opinion in Immunology. 8 (3) 412-8; Canman, C.E., Lim, D.S. (1998), Oncogene 17 (25) 3301-3308; Jackson, S. P. (1997), International Journal of Biochemistry and Cell Biology. 29 (7):935-8; and Zhong, H. et al, Cancer res, (2000) 60(6), 1541-1545.
  • Myo-inositol signaling inhibitors such as phospholipase C blockers and Myoinositol analogues.
  • signal inhibitors are described in Powis, G., and Kozikowski A., (1994) New Molecular Targets for Cancer Chemotherapy ed., Paul Workman and David Kerr, CRC press 1994, London.
  • Ras Oncogene Another group of signal transduction pathway inhibitors are inhibitors of Ras Oncogene.
  • Such inhibitors include inhibitors of farnesyltransferase, geranyl-geranyl transferase, and CAAX proteases as well as anti-sense oligonucleotides, ribozymes and immunotherapy.
  • Such inhibitors have been shown to block ras activation in cells containing wild type mutant ras , thereby acting as antiproliferation agents.
  • Ras oncogene inhibition is discussed in Scharovsky, O. G., Rozados, V.R., Gervasoni, S.I. Matar, P. (2000), Journal of Biomedical Science. 7(4) 292-8; Ashby, M.N. (1998), Current Opinion in Lipidology. 9 (2) 99 - 102; and BioChim. Biophys. Acta, (19899) 1423(3):19-30.
  • antibody antagonists to receptor kinase ligand binding may also serve as signal transduction inhibitors.
  • This group of signal transduction pathway inhibitors includes the use of humanized antibodies to the extracellular ligand binding domain of receptor tyrosine kinases.
  • lmclone C225 EGFR specific antibody see Green, M. C. et al, Monoclonal Antibody Therapy for Solid Tumors, Cancer Treat.
  • Herceptin ® erbB2 antibody see Tyrosine Kinase Signalling in Breast cance ⁇ erbB Family Receptor Tyrosine Kniases, Breast cancer Res., 2000, 2(3), 176-183
  • 2CB VEGFR2 specific antibody see Brekken, R.A. et al, Selective Inhibition of VEGFR2 Activity by a monoclonal Anti-VEGF antibody blocks tumor growth in mice, Cancer Res. (2000) 60, 51 17-5124).
  • Anti-angiogenic agents including non-receptorkinase angiogenesis inhibitors may alo be useful.
  • Anti-angiogenic agents such as those which inhibit the effects of vascular edothelial growth factor, (for example the anti-vascular endothelial cell growth factor antibody bevacizumab [AvastinTM], and compounds that work by other mechanisms (for example linomide, inhibitors of integrin ⁇ v ⁇ 3 function, endostatin and angiostatin);
  • Immunotherapy approaches including for example ex- vivo and in-vivo approaches to increase the immunogenecity of patient tumour cells, such as transfection with cytokines such as interleukin 2, interleukin 4 or granulocyte- macrophage colony stimulating factor, approaches to decrease T-cell anergy, approaches using transfected immune cells such as cytokine-transfected dendritic cells, approaches using cytokine-transfected tumour cell lines and approaches using anti-idiotypic antibodies
  • cytokines such as interleukin 2, interleukin 4 or granulocyte- macrophage colony stimulating factor
  • Agents used in proapoptotic regimens may also be used in the combination of the present invention.
  • Cell cycle signalling inhibitors inhibit molecules involved in the control of the cell cycle.
  • a family of protein kinases called cyclin dependent kinases (CDKs) and their interaction with a family of proteins termed cyclins controls progression through the eukaryotic cell cycle. The coordinate activation and inactivation of different cyclin/CDK complexes is necessary for normal progression through the cell cycle.
  • CDKs cyclin dependent kinases
  • Several inhibitors of cell cycle signalling are under development. For instance, examples of cyclin dependent kinases, including CDK2, CDK4, and CDK6 and inhibitors for the same are described in, for instance, Rosania et al, Exp. Opin. Ther. Patents (2000) 10(2):215-230.
  • the combination of the present invention comprises a compound of formula I or a salt or solvate thereof and at least one anti-neoplastic agent selected from anti-microtubule agents, platinum coordination complexes, alkylating agents, antibiotic agents, topoisomerase Il inhibitors, antimetabolites, topoisomerase I inhibitors, hormones and hormonal analogues, signal transduction pathway inhibitors, non-receptor tyrosine kinase angiogenesis inhibitors, immunotherapeutic agents, proapoptotic agents, and cell cycle signaling inhibitors.
  • anti-neoplastic agent selected from anti-microtubule agents, platinum coordination complexes, alkylating agents, antibiotic agents, topoisomerase Il inhibitors, antimetabolites, topoisomerase I inhibitors, hormones and hormonal analogues, signal transduction pathway inhibitors, non-receptor tyrosine kinase angiogenesis inhibitors, immunotherapeutic agents, proapoptotic agents, and cell cycle signaling inhibitors.
  • the combination of the present invention comprises a compound of formula I or a salt or solvate thereof and at least one anti-neoplastic agent which is an anti-microtubule agent selected from diterpenoids and vinca alkaloids.
  • the at least one anti-neoplastic agent agent is a diterpenoid.
  • the at least one anti-neoplastic agent is a vinca alkaloid.
  • the combination of the present invention comprises a compound of formula I or a salt or solvate thereof and at least one anti-neoplastic agent, which is a platinum coordination complex.
  • the at least one anti-neoplastic agent is paclitaxel, carboplatin, or vinorelbine.
  • the at least one anti-neoplastic agent is carboplatin.
  • the at least one anti-neoplastic agent is vinorelbine.
  • the at least one anti-neoplastic agent is paclitaxel.
  • the combination of the present invention comprises a compound of formula I and salts or solvates thereof and at least one anti-neoplastic agent which is a signal transduction pathway inhibitor.
  • the signal transduction pathway inhibitor is an inhibitor of a growth factor receptor kinase VEGFR2, TIE2, PDGFR, BTK, erbB2, EGFr, IGFR-1 , TrkA, TrkB, TrkC, or c-fms.
  • the signal transduction pathway inhibitor is an inhibitor of a serine/threonine kinase rafk, akt, or PKC-zeta.
  • the signal transduction pathway inhibitor is an inhibitor of a non- receptor tyrosine kinase selected from the src family of kinases.
  • the signal transduction pathway inhibitor is an inhibitor of c- src.
  • the signal transduction pathway inhibitor is an inhibitor of Ras oncogene selected from inhibitors of farnesyl transferase and geranylgeranyl transferase.
  • the signal transduction pathway inhibitor is an inhibitor of a serine/threonine kinase selected from the group consisting of PI3K.
  • the signal transduction pathway inhibitor is a dual EGFr/erbB2 inhibitor, for example N- ⁇ 3-Chloro-4-[(3-fluorobenzyl) oxy]phenyl ⁇ -6-[5- ( ⁇ [2-(methanesulphonyl) ethyl]amino ⁇ methyl)-2-furyl]-4-quinazolinamine (structure below):
  • the combination of the present invention comprises a compound of formula I or a salt or solvate thereof and at least one anti-neoplastic agent which is a cell cycle signaling inhibitor.
  • cell cycle signaling inhibitor is an inhibitor of CDK2, CDK4 or CDK6.
  • the compounds of formula (I), or salts and solvates thereof and the at least one antineoplastic agent may be employed in combination concomitantly or sequentially in any therapeutically appropriate combination.
  • the combination may be employed in combination in accordance with the invention by administration concomitantly in (1 ) a unitary pharmaceutical composition including both compounds or (2) separate pharmaceutical compositions each including one of the compounds.
  • the combination may be administered separately in a sequential manner wherein one is administered first and the other second or vice versa. Such sequential administration may be close in time or remote in time.
  • the combination of the present invention may also include at least one additional cancer treatment therapy in combination concomitantly or sequentially in any therapeutically appropriate combination with the combinations of the present invention.
  • the additional cancer treatment therapy may include radiation therapy, surgical therapy and/or at least one additional chemotherapeutic therapy including administration of at least one additional anti-neoplastic agent.
  • the other therapeutic ingredient(s) may be used in the form of salts, for example as alkali metal or amine salts or as acid addition salts, or prodrugs, or as esters, for example lower alkyl esters, or as solvates, for example hydrates, to optimise the activity and/or stability and/or physical characteristics, such as solubility, of the therapeutic ingredient. It will be clear also that, where appropriate, the therapeutic ingredients may be used in optically pure form.
  • compositions comprising a combination as defined above together with a pharmaceutically acceptable diluent or carrier represent a further aspect of the invention.
  • the individual compounds of such combinations may be administered either sequentially or simultaneously in separate or combined pharmaceutical compositions.
  • the individual compounds may be administered simultaneously in a combined pharmaceutical composition.
  • Appropriate doses of known therapeutic agents will be readily appreciated by those skilled in the art.
  • the compounds of this invention may be made by a variety of methods, including standard chemistry. Any previously defined variable will continue to have the previously defined meaning unless otherwise indicated. Illustrative general synthetic methods are set out below and then specific compounds of the invention are prepared in the Working Examples.
  • the present invention includes both possible stereoisomers and includes not only racemic compounds but the individual enantiomers as well.
  • a compound When a compound is desired as a single enantiomer, it may be obtained by stereospecific synthesis or by resolution of the final product or any convenient intermediate. Resolution of the final product, an intermediate, or a starting material may be effected by any suitable method known in the art. See, for example, Stereochemistry of Organic Compounds by E. L. ENeI, S. H. Wilen, and L. N. Mander (Wiley-lnterscience, 1994).
  • Step 2a ( ⁇ ) Hydrazine Hydrate, Ethanol ( ⁇ ) NaOH, Ethanol Intermediate 1 Compound 1
  • Step 1a React Intermediate 1 and (3-cyano-4-fluorophenyl)boronic acid with a Palladium catalyst (eg dichloro(1 ,1'-bis(diphenylphosphino)ferrocene)palladium(ll)) in the presence of a base (eg potassium carbonate); solvent: 1 ,4-dioxane / water at elevated temperature (eg 13O 0 C).
  • a Palladium catalyst eg dichloro(1 ,1'-bis(diphenylphosphino)ferrocene)palladium(ll)
  • a base eg potassium carbonate
  • solvent 1 ,4-dioxane / water at elevated temperature (eg 13O 0 C).
  • Step 2a (i) React Intermediate 2 with hydrazine hydrate; solvent: ethanol at elevated temperature (eg 165 0 C); (ii) Add aqueous sodium hydroxide and heat at elevated temperature (eg 100 0 C). In termediate 3
  • Step 1 b React Intermediate 3 and (3-cyano-4-fluorophenyl)boronic acid with a Palladium catalyst (eg dichloro(1 ,1'-bis(diphenylphosphino)ferrocene)palladium(ll)) in the presence of a base (eg potassium carbonate); solvent: 1 ,4-dioxane / water at elevated temperature (eg 15O 0 C).
  • a Palladium catalyst eg dichloro(1 ,1'-bis(diphenylphosphino)ferrocene)palladium(ll)
  • a base eg potassium carbonate
  • solvent 1 ,4-dioxane / water at elevated temperature (eg 15O 0 C).
  • Step 2b React Intermediate 4 with hydrazine; solvent: ethanol at elevated temperature (eg 165 0 C).
  • LCMS (liquid chromatography - mass spectrometry) data were recorded on Waters ZQ mass spectrometers, typically under the following conditions: Column: 3.3cm x 4.6mm ID, 3um ABZ+PLUS, Flow Rate: 3ml/min, Injection Volume: 5 ⁇ l, room temperature, UV Detection Range: 215 to 330nm, Solvent A: 0.1 % Formic Acid + 1OmM aqueous ammonium acetate, Solvent B: MeCN: Water 95:5 +0.05% Formic Acid, typically using the solvent gradient tabulated below:
  • Preparative mass-directed HPLC refers to methods where the material was purified by High Performance Liquid Chromatography, for example using a Supelco LCABZ++ column whose dimensions are 20mm internal diameter by 150mm in length, with a stationary phase particle size of 5 ⁇ m.
  • Solvent A Water + 0.1% Formic Acid
  • Solvent B MeCN:Water 95:5 +0.05% Formic Acid; typically the purification was performed over a 10 minute solvent gradient (typically 0-30%, 5-30%, 15-55%, 30- 80%, or 50-90% solvent B in A) at a flow-rate of 20 mL / minute.
  • Mass detection and collection was performed using a MicroMass ZQ Mass Spectrometer.
  • Microwave reactions were performed using a microwave reactor such as a Biotage Initiator 60.
  • Solid Phase Extraction (SPE) cartridges were typically supplied by International Sorbent Technologies Ltd., Dyffryn Business Park, Hengoed, Mid Glamorgan, CF82, 7RJ, UK.
  • C18 reverse phase flash chromatography coloumns were typically supplied by Teledyne ISCO Inc., 4700 Superior Street, Lincoln, NE 68504, USA.
  • Step 1a Preparation of 2-fluoro-5- ⁇ 1-[(4-methylphenyl)sulfonyl]-1 /-/-pyrrolo[2,3- b]pyridin-4-yl ⁇ benzonitrile, Intermediate 2.
  • the crude reaction mixture was loaded onto a 1g SiO 2 SPE cartridge (which had been wetted with methanol, 2 column volumes), and the cartridge was eluted with methanol (5 column volumes) and the combined eluants were concentrated in vacuo.
  • Step 2a Preparation of 5-(1 H-pyrrolo[2,3-b]pyridin-4-yl)-1 /-/-indazol-3-amine, Compound 1.
  • Step 1 b Preparation of 2-fluoro-5-(1 H-pyrazolo[3,4-b]pyridin-4-yl)benzonitrile formate, Intermediate 4.
  • a microwave tube was charged with 4-iodo-1 H-pyrazolo[3,4-b]pyridine (Intermediate 3; for a synthesis see Potashman, M. et al, Int. Patent Appl. WO 2005/070891 A2), (154 mg, 0.63 mmol), (3-cyano-4-fluorophenyl)boronic acid (155 mg, 0.94 mmol), potassium carbonate (0.63 ml.
  • Step 2b Preparation of 5-(1 H-pyrazolo[3,4-b]pyridin-4-yl)-1 H-indazol-3-amine, Compound 2.
  • IKK1 Time-Resolved Fluorescence Resonance Energy Transfer Assay
  • Recombinant human IKK1 (residues 1-785) was expressed in baculovirus as a C- terminal 6HIS-tagged fusion protein, and its activity was assessed using a time- resolved fluorescence resonance energy transfer (TR-FRET) assay.
  • TR-FRET time- resolved fluorescence resonance energy transfer
  • Detection reagents comprise antiphosphoserine-l ⁇ B ⁇ -32/36 monoclonal antibody 12C2 (Cell Signalling Technology, Beverly Massachusetts, USA) labelled with W-1024 europium chelate (Wallac OY, Turku, Finland) and an allophycocyanin-labelled anti-GST antibody (Prozyme, San Leandro, California, USA).
  • the reaction mixture (9 ⁇ l total volume) was further incubated for at least 60 minutes at room temperature.
  • the degree of phosphorylation of GST-kB ⁇ was measured using a suitable time-resolved fluorimeter such as Packard Discovery (Perkin-Elmer Life Sciences, Pangbourne, Berkshire, UK), Wallac Viewlux (Perkin- Elmer Life Sciences, Pangbourne, Berkshire, UK) or Rubystar (BMG, Aylesbury, Buckinghamshire, UK) as a ratio of specific 665 nm energy transfer signal to reference europium 620 nm signal.
  • a suitable time-resolved fluorimeter such as Packard Discovery (Perkin-Elmer Life Sciences, Pangbourne, Berkshire, UK), Wallac Viewlux (Perkin- Elmer Life Sciences, Pangbourne, Berkshire, UK) or Rubystar (BMG, Aylesbury, Buckinghamshire, UK) as a ratio of specific 665 nm energy transfer signal to reference europium 620 nm signal.
  • IKK2 Time-Resolved Fluorescence Resonance Energy Transfer Assay
  • Recombinant human IKK2 (residues 1-737) is expressed in baculovirus as a C- terminal GST-tagged fusion protein, and its activity is assessed using a time-resolved fluorescence resonance energy transfer (TR-FRET) assay.
  • TR-FRET time-resolved fluorescence resonance energy transfer
  • IKK2 typically 2- 5 nM final
  • assay buffer 50 mM HEPES, 10 mM MgC ⁇ , 1 mM CHAPS pH
  • Detection reagents comprise antiphosphoserine-l ⁇ B ⁇ -32/36 monoclonal antibody 12C2 (Cell Signalling Technology, Beverly Massachusetts, USA) labelled with W-1024 europium chelate (Wallac OY, Turku, Finland) and an allophycocyanin- labelled anti-GST antibody (Prozyme, San Leandro, California, USA).
  • the reaction mixture (9 ⁇ l total volume) is further incubated for at least 60 minutes at room temperature.
  • the degree of phosphorylation of GST-l ⁇ B ⁇ is measured using a suitable time-resolved fluorimeter such as Packard Discovery (Perkin-Elmer Life Sciences, Pangbourne, Berkshire, UK), Wallac Viewlux (Perkin-Elmer Life Sciences, Pangbourne, Berkshire, UK) or Rubystar (BMG, Aylesbury, Buckinghamshire, UK) as a ratio of specific 665 nm energy transfer signal to reference europium 620 nm signal.
  • a suitable time-resolved fluorimeter such as Packard Discovery (Perkin-Elmer Life Sciences, Pangbourne, Berkshire, UK), Wallac Viewlux (Perkin-Elmer Life Sciences, Pangbourne, Berkshire, UK) or Rubystar (BMG, Aylesbury, Buckinghamshire, UK) as a ratio of specific 665 nm energy transfer signal to reference europium 620 nm signal.
  • the compounds of the invention also demonstrated inhibitory activity at other kinases, for example ROCK 1 and YAK3.

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Abstract

La présente invention porte sur des dérivés de pyrrolo-pyridine de formule (I), des combinaisons de ceux-ci, des compositions et des médicaments les contenant, ainsi que sur des procédés pour la préparation et l'utilisation de tels composés, combinaisons, compositions et médicaments dans le traitement de troubles associés avec une activité kinase inappropriée, en particulier de troubles associés à une activité IKK1 inappropriée.
PCT/EP2008/054970 2007-04-26 2008-04-24 Composés de lh-indazole-3-amine comme inhibiteurs d'ikk1 WO2008132121A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009073300A1 (fr) * 2007-11-02 2009-06-11 Vertex Pharmaceuticals Incorporated Dérivés de [1h-pyrazolo[3,4-b]pyridin-4-yl]-phényle ou -pyridin-2-yle en tant qu'inhibiteurs de la protéine kinase c-thêta
WO2023218201A1 (fr) * 2022-05-11 2023-11-16 Cancer Research Technology Limited Inhibiteurs d'ikk

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PHILIP DG COISH ET AL: "Small molecule inhibitors of IKK kinase activity", EXPERT OPINION ON THERAPEUTIC PATENTS, ASHLEY PUBLICATIONS, GB, vol. 16, no. 1, 1 January 2006 (2006-01-01), pages 1 - 12, XP002449699, ISSN: 1354-3776 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009073300A1 (fr) * 2007-11-02 2009-06-11 Vertex Pharmaceuticals Incorporated Dérivés de [1h-pyrazolo[3,4-b]pyridin-4-yl]-phényle ou -pyridin-2-yle en tant qu'inhibiteurs de la protéine kinase c-thêta
JP2011502994A (ja) * 2007-11-02 2011-01-27 バーテックス ファーマシューティカルズ インコーポレイテッド タンパク質キナーゼＣ−θとしての［１Ｈ−ピラゾロ［３，４−Ｂ］ピリジン−４−イル］−フェニレンまたは−ピリジン−２−イル誘導体
US8173635B2 (en) * 2007-11-02 2012-05-08 Vertex Pharmaceuticals Incorporated Kinase inhibitors
US8367697B2 (en) * 2007-11-02 2013-02-05 Vertex Pharmaceuticals Incorporated Kinase inhibitors
WO2023218201A1 (fr) * 2022-05-11 2023-11-16 Cancer Research Technology Limited Inhibiteurs d'ikk

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