WO2003084473A2 - Method of treating cancer - Google Patents
Method of treating cancer Download PDFInfo
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- WO2003084473A2 WO2003084473A2 PCT/US2003/010632 US0310632W WO03084473A2 WO 2003084473 A2 WO2003084473 A2 WO 2003084473A2 US 0310632 W US0310632 W US 0310632W WO 03084473 A2 WO03084473 A2 WO 03084473A2
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- inhibitor
- akt
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- 0 *c1nnc(c2c3cccc2)[n]1nc3N* Chemical compound *c1nnc(c2c3cccc2)[n]1nc3N* 0.000 description 7
- HBCHTLGWXPVWDF-UHFFFAOYSA-N CCN(CC)CCNC(c(cc1)cc2c1nc(-c1ccccc1)c(-c1ccc(CN(CC3)CCC3N(c3ccccc3N3)C3=O)cc1)n2)=O Chemical compound CCN(CC)CCNC(c(cc1)cc2c1nc(-c1ccccc1)c(-c1ccc(CN(CC3)CCC3N(c3ccccc3N3)C3=O)cc1)n2)=O HBCHTLGWXPVWDF-UHFFFAOYSA-N 0.000 description 1
- SJVPHAOWYMKBPE-UHFFFAOYSA-N Nc(c(N)c1)cc2c1nc[nH]2 Chemical compound Nc(c(N)c1)cc2c1nc[nH]2 SJVPHAOWYMKBPE-UHFFFAOYSA-N 0.000 description 1
- QELAVTMDKHSMOP-UHFFFAOYSA-N O=C(C(c1ccc(CBr)cc1)=O)c1ccccc1 Chemical compound O=C(C(c1ccc(CBr)cc1)=O)c1ccccc1 QELAVTMDKHSMOP-UHFFFAOYSA-N 0.000 description 1
- TUKMJZRJDWDVNZ-UHFFFAOYSA-N O=C(C(c1ccc(CN(CC2)CCC2N(c(cccc2)c2N2)C2=O)cc1)=O)c1ccccc1 Chemical compound O=C(C(c1ccc(CN(CC2)CCC2N(c(cccc2)c2N2)C2=O)cc1)=O)c1ccccc1 TUKMJZRJDWDVNZ-UHFFFAOYSA-N 0.000 description 1
- BYNBAMHAURJNTR-UHFFFAOYSA-N O=C1N(C2CCNCC2)c(cccc2)c2N1 Chemical compound O=C1N(C2CCNCC2)c(cccc2)c2N1 BYNBAMHAURJNTR-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/415—1,2-Diazoles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/50—Pyridazines; Hydrogenated pyridazines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/53—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with three nitrogens as the only ring hetero atoms, e.g. chlorazanil, melamine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/43—Enzymes; Proenzymes; Derivatives thereof
- A61K38/45—Transferases (2)
Definitions
- the present invention relates to methods of treating cancer by selectively inhibiting one or more isoforms of Akt (also known as PKB, and referred to herein as either Akt or Akt/PKB).
- Akt also known as PKB, and referred to herein as either Akt or Akt/PKB.
- the present invention also relates to a method of identifying such compounds.
- Apoptosis plays essential roles in embryonic development and pathogenesis of various diseases, such as degenerative neuronal diseases, cardiovascular diseases and cancer. Recent work has led to the identification of various pro- and anti-apoptotic gene products that are involved in the regulation or execution of programmed cell death. Expression of anti-apoptotic genes, such as Bcl2 or Bcl-x L , inhibits apoptotic cell death induced by various stimuli. On the other hand, expression of pro-apoptotic genes, such as Bax or Bad, leads to programmed cell death (Aams et al. Science, 281:1322-1326 (1998)). The execution of programmed cell death is mediated by caspase -1 related proteinases, including caspase-3, caspase-7, caspase-8 and caspase-9 etc (Thorneberry et al. Science, 281:1312-1316 (1998)).
- PI3K phosphatidylinositol 3' -OH kinase
- Akt PKB phosphatidylinositol 3' -OH kinase
- PDGF platelet derived growth factor
- NEF nerve growth factor
- IGF-1 insulin-like growth factor-1
- Activated PI3K leads to the production of phosphatidylinositol (3,4,5)-triphosphate (Ptdlns(3,4,5)-P3), which in turn binds to, and promotes the activation of, the serine/threonine kinase Akt, which contains a pleckstrin homology (PH)-domain (Franke et al Cell, 81:727-736 (1995); Hemmings Science, 277:534 (1997); Downward, Curr. Opin. Cell Biol. 10:262-267 (1998), Alessi et al., EMBO J. 15: 6541-6551 (1996)).
- PH pleckstrin homology
- PI3K or dominant negative Akt PKB mutants abolish survival-promoting activity of these growth factors or cytokines. It has been previously disclosed that inhibitors of PI3K (LY294002 or wortmannin) blocked the activation of Akt/PKB by upstream kinases. In addition, introduction of constitutively active PI3K or Akt/PKB mutants promotes cell survival under conditions in which cells normally undergo apoptotic cell death (Kulik et al. 1997, Dudek et al. 1997). Analysis of Akt levels in human tumors showed that Akt-2 is overexpressed in a significant number of ovarian (J. Q. Cheung et al. Proc. Natl. Acad. Sci. U.S.A.
- Akt3 was found to be overexpressed in breast and prostate cancer cell lines (Nakatani et al. J. Biol. Chem. 274:21528-21532 (1999).
- the tumor suppressor PTEN a protein and lipid phosphatase that specifically removes the 3' phosphate of Ptdlns(3,4,5)-P3, is a negative regulator of the PI3K Akt pathway (Li et al. Science 275: 1943-1947 (1997), Stambolic et al. Cell 95:29-39 (1998), Sun et al. Proc. Natl. Acad. Sci. U.S.A. 96:6199-6204 (1999)).
- Germline mutations of PTEN are responsible for human cancer syndromes such as Cowden disease (Liaw et al. Nature Genetics 16:64-67 (1997)).
- PTEN is deleted in a large percentage of human tumors and tumor cell lines without functional PTEN show elevated levels of activated Akt (Li et al. supra, Guldberg et al. Cancer Research 57:3660-3663 (1997), Risinger et al. Cancer Research 57:4736-4738 (1997)).
- Akt/PKB Three members of the Akt/PKB subfamily of second-messenger regulated serine/threonine protein kinases have been identified and termed Aktl/ PKB , Akt2/PKB ⁇ , and Akt3/PKB ⁇ respectively.
- the isoforms are homologous, particularly in regions encoding the catalytic domains.
- Akt/PKBs are activated by phosphorylation events occurring in response to PI3K signaling.
- PI3K phosphorylates membrane inositol phospholipids, generating the second messengers phosphatidylinositol 3,4,5-trisphosphate and phosphatidylinositol 3,4-bisphosphate, which have been shown to bind to the PH domain of Akt/PKB.
- the current model of Akt PKB activation proposes recruitment of the enzyme to the membrane by 3 '-phosphorylated phosphoinositides, where phosphorylation of the regulatory sites of Akt/PKB by the upstream kinases occurs (B.A. Hemmings, Science 275:628-630 (1997); B.A.
- Aktl/PKB ⁇ Phosphorylation of Aktl/PKB ⁇ occurs on two regulatory sites, Thr 308 in the catalytic domain activation loop and on Ser 473 near the carboxy terminus (D. R. Alessi et al. EMBO J. 15:6541-6551 (1996) and R. Meier et al. J. Biol.Chem. 272:30491-30497 (1997)).
- Equivalent regulatory phosphorylation sites occur in Akt2/PKB ⁇ and Akt3/PKB ⁇ .
- the upstream kinase which phosphorylates Akt/PKB at the activation loop site has been cloned and termed 3'-phosphoinositide dependent protein kinase 1 (PDK1).
- PDK1 phosphorylates not only Akt/PKB, but also ⁇ 70 ribosomal S6 kinase, p90RSK, serum and glucocorticoid-regulated kinase (SGK), and protein kinase C.
- the upstream kinase phosphorylating the regulatory site of Akt/PKB near the carboxy terminus has not been identified yet, but a recent report implies a role for the integrin-linked kinase (ILK-1), a serine/threonine protein kinase, or autophosphorylation.
- ILK-1 integrin-linked kinase
- serine/threonine protein kinase or autophosphorylation.
- Akt activation and activity can be achieved by inhibiting PI3K with inhibitors such as LY294002 and wortmannin.
- inhibitors such as LY294002 and wortmannin.
- PI3K inhibition has the potential to indiscriminately affect not just all three Akt isozymes but also other PH domain-containing signaling molecules that are dependent on Pdtlns(3,4,5)- P3, such as the Tec family of tyrosine kinases.
- Akt can be activated by growth signals that are independent of PI3K.
- Akt activity can be inhibited by blocking the activity of the upstream kinase PDK1. No specific PDK1 inhibitors have been disclosed.
- the instant invention provides for a method of treating cancer which comprises administering to a mammal an inhibitor of Akt/PKB activity that electively inhibits one or more of the Akt/PKB isoforms.
- the invention also provides for a method of inhibiting Akt/PKB activity by administering a compound that is an inhibitor of Akt/PKB activity that selectively inhibits one or more of the Akt PKB isoforms and is dependent on the PH domain for its inhibitory activity.
- a method of identifying such selective inhibitors of Akt PKB activity is also disclosed.
- the present invention relates to a method of inhibiting Akt/PKB activity which comprises administering to a mammal in need thereof a pharmaceutically effective amount of a compound that selectively inhibits one or more of the Akt/PKB isoforms.
- the invention also relates to a method of treating cancer that comprises administering to a mammal in need thereof an inhibitor whose activity is dependent on the presence of the pleckstrin homology (PH) domain, the hinge region or both the PH domain and the hinge region of Akt.
- PH pleckstrin homology
- Akt isozymes Direct inhibition of one or more Akt isozymes provides the most specific means of regulating the PI3K/Akt pathway.
- inhibitors Akt/PKB activity describes the decrease in the in vitro and in vivo biochemical modifications resulting from the phosphorylation of Akt by upstream kinases and/or the subsequent phosphorylation of downstream targets of Akt by activated Akt.
- inhibitor of Akt/PKB activity and “inhibitor of Akt/PKB [isoforms]” describe an agent that, by binding to Akt, either inhibits the phosphorylation of Akt by upstream kinases (thereby reducing the amount of activated Akt) or inhibits the phosphorylation by activated Akt of protein targets of Akt, or inhibits both of these biochemical steps.
- the inhibitor utilized in the instant methods inhibits the phosphorylation of Akt by upstream kinases (thereby reducing the amount of activated Akt) and inhibits the phosphorylation by activated Akt of protein targets of Akt.
- the selective inhibitor useful in the instant method of treatment is selected from: a selective inhibitor of Aktl, a selective inhibitor of Akt2, a selective inhibitor of Akt3, a selective inhibitor of two of the three Akt isoforms or a selective inhibitor of all three Akt isoforms.
- the selective inhibitor useful in the instant method of treatment is selected from: a selective inhibitor of Aktl, a selective inhibitor of Akt2, a selective inhibitor of Akt3, a selective inhibitor of both Aktl and Akt2, a selective inhibitor of both Aktl and Akt3, or a selective inhibitor of both Akt2 and Akt3. More preferably, the selective inhibitor useful in the instant method of treatment is selected from: a selective inhibitor of Aktl, a selective inhibitor of Akt2 or a selective inhibitor of both Aktl and Akt2.
- the selective inhibitor useful in the instant method is a small organic molecule.
- small organic molecule refers to a compound that is an organic molecule of a size comparable to those organic molecules generally used in pharmaceuticals.
- Preferred small organic molecules range in size up to about 2000 Da, and more preferably in size up to about 1000 Da.
- selective inhibitor as used herein is intended to mean that the inhibiting compound exhibits greater inhibition against the activity of the indicated isoform(s) of Akt, when compared to the compounds inhibition of the activity of the other Akt isoform(s) and other kinases, such as PKA and PKC.
- the selectively inhibiting compound exhibits at least about a 5 fold greater inhibition against the activity of the indicated isoform(s) of Akt. More preferably, the selectively inhibiting compound exhibits at least about a 50 fold greater inhibition against the activity of the indicated isoform(s) of Akt.
- the methods of treating cancer and inhibiting Akt comprise administering an inhibitor whose activity is dependent on the presence of the pleckstrin homology (PH) domain, the hinge region or both the PH domain and the hinge region of Akt.
- PH pleckstrin homology
- Akt Akt isoforms
- Inhibitors of Akt that function by binding to the PH domain, the hinge region or both are thus able to discriminate between the three Akt isozymes.
- a selective inhibitor whose inhibitory activity is dependent on the PH domain exhibits a decrease in in vitro inhibitory activity or no in vitro inhibitory activity against truncated Akt/PKB proteins lacking the PH domain.
- a selective inhibitor whose inhibitory activity is dependent on the hinge region the region of the proteins between the PH domain and the kinase domain (see Konishi et al. Biochem. and Biophys. Res. Comm. 216: 526-534 (1995), Figure 2, incorporated herein by reference), exhibits a decrease in in vitro inhibitory activity or no in vitro inhibitory activity against truncated Akt proteins lacking the PH domain and the hinge region or the hinge region alone.
- PH domains and hinge regions in the Akt isoforms lack the sequence homology that is present in the rest of the protein, particularly the homology found in the kinase domains (which comprise the catalytic domains and ATP-binding consensus sequences). It is therefore observed that certain inhibitor compounds, such as those described herein, are not only selective for one or two isoforms of Akt, but also are weak inhibitors or fail to inhibit other kinases, such as PKA and PKC, whose kinase domains share some sequence homology with the kinase domains of the Akt/PKB isoforms. Both PKA and PKC lack a PH domain and a hinge region.
- the selective inhibitor of the second embodiment is selected from: a selective inhibitor of Aktl, a selective inhibitor of Akt2 or a selective inhibitor of both Aktl and Akt2.
- the selective inhibitor useful in the instant method of treatment is selected from: a selective inhibitor of Aktl, a selective inhibitor of Akt2, a selective inhibitor of Akt3 or a selective inhibitor of two of the three Akt isoforms.
- the selective inhibitor of one or two of the Akt isoforms useful in the instant method of treatment is not an inhibitor of one or both of such Akt isoforms that have been modified to delete the PH domain, the hinge region or both the PH domain and the hinge region.
- the selective inhibitor of all three Akt isoforms useful in the instant method of treatment is not an inhibitor of one, two or all of such Akt isoforms that have been modified to delete the PH domain, the hinge region or both the PH domain and the hinge region.
- the present invention further relates to a method of identifying a compound that is a selective inhibitor of one or two of the Akt/PKB isoforms, or all three isoforms, whose inhibitory efficacy is dependent on the PH domain.
- the method comprises the steps of: a) determining the efficacy of a test compound in inhibiting the activity of an Akt isoform; b) determining the efficacy of the test compound in inhibiting the activity of the Akt isoform that has been modified to delete the PH domain; and c) comparing the activity of the test compound against the Akt isoform with the activity of the test compound against the modified Akt isoform lacking the PH domain.
- the present invention also relates to a method of identifying a compound that is a selective inhibitor of one or two of the Akt/PKB isoforms, or all three isoforms, whose inhibitory efficacy is dependent on the hinge region.
- the method comprises the steps of: a) determining the efficacy of a test compound in inhibiting the activity of an Akt isoform; b) determining the efficacy of the test compound in inhibiting the activity of the Akt isoform that has been modified to delete the PH domain; c) determining the efficacy of the test compound in inhibiting the activity of the Akt isoform that has been modified to delete the PH domain and the hinge region; and d) comparing the activity of the test compound against the Akt isoform, the activity of the test compound against the modified Akt isoform lacking the PH domain, and the activity of the test compound against the modified Akt isoform lacking the PH domain and the hinge region.
- the compounds that are identified by the methods described above as inhibitors of the activity of one or more Akt isoforms that are dependent on the presence of either or both the PH domain or hinge region of the Akt isoform will be useful in the methods of treatment disclosed herein. Such compounds may further be useful as components in assay systems that may be used to identify other inhibitors of the activity of one or more Akt isoforms wherein the other inhibitors have inhibitory activity through selective binding and/or interaction with the kinase region of the Akt isoform(s). Also useful as an assay component would be a PH domain and/or hinge region dependent inhibitor that is an irreversible inhibitor of the Akt isoform(s).
- modified Akt isoforms useful in the above methods of identification may alternatively lack less than the full PH region and/or hinge region.
- a modified Akt isoform may lack the full PH domain and a portion of the hinge region.
- the methods may alternatively comprise modified Akt isoforms wherein the PH domain and/or the hinge region are modified by a specific point mutation(s) in those amino acid sequences.
- Such a method comprising a modified Akt isoform having a point mutation(s) in the PH domain and/or the hinge region may not only identify whether the activity of an inhibitor compound is dependent on the presence of the PH domain and/or the hinge region, but may also identify the specific site in the Akt isoform where the inhibitor compound interacts or binds with the protein.
- modified Akt isoforms lacking only the PH domain (deletion of about aa 4-110 for Aktl, deletion of about aa 4-110 for Akt2 and deletion of about aa 4-109 for Akt3) may be prepared by techniques well known in the art.
- modified Akt isoforms wherein both the PH domain and the hinge region are deleted may be prepared by techniques well known in the art.
- the present invention is further directed to the cloning and expression of modified versions of the Akt isoforms wherein one or more point mutations are made to the amino acid sequences of the PH domain and the hinge region.
- one or two point mutations are made to the amino acid sequences of the PH domain and the hinge region.
- one point mutation is made to the amino acid sequences of the PH domain and the hinge region.
- the methods of the instant invention are useful in the treatment of cancer, in particular cancers associated with irregularities in the activity of PTEN, Akt and/or GSK3.
- cancers include, but are not limited to colon, prostate, colorectal, ovarian, pancreatic and breast cancer.
- the compounds of this invention may be administered to mammals, preferably humans, either alone or, preferably, in combination with pharmaceutically acceptable carriers, excipients or diluents, in a pharmaceutical composition, according to standard pharmaceutical practice.
- the compounds can be administered orally or parenterally, including the intravenous, intramuscular, intraperitoneal, subcutaneous, rectal and topical routes of administration.
- the pharmaceutical compositions containing the active ingredient may be in a form suitable for oral use, for example, as tablets, troches, lozenges, aqueous or oily suspensions, dispersible powders or granules, emulsions, hard or soft capsules, or syrups or elixirs.
- compositions intended for oral use may be prepared according to any method known to the art for the manufacture of pharmaceutical compositions and such compositions may contain one or more agents selected from the group consisting of sweetening agents, flavoring agents, coloring agents and preserving agents in order to provide pharmaceutically elegant and palatable preparations.
- Tablets contain the active ingredient in admixture with non-toxic pharmaceutically acceptable excipients which are suitable for the manufacture of tablets.
- excipients may be for example, inert diluents, such as calcium carbonate, sodium carbonate, lactose, calcium phosphate or sodium phosphate; granulating and disintegrating agents, for example, microcrystalline cellulose, sodium crosscarmellose, corn starch, or alginic acid; binding agents, for example starch, gelatin, polyvinyl-pyrrolidone or acacia, and lubricating agents, for example, magnesium stearate, stearic acid or talc.
- the tablets may be uncoated or they may be coated by known techniques to mask the unpleasant taste of the drug or delay disintegration and absorption in the gastrointestinal tract and thereby provide a sustained action over a longer period.
- a water soluble taste masking material such as hydroxypropylmethyl-cellulose or hydroxypropyl- cellulose, or a time delay material such as ethyl cellulose, cellulose acetate butyrate may be employed.
- Formulations for oral use may also be presented as hard gelatin capsules wherein the active ingredient is mixed with an inert solid diluent, for example, calcium carbonate, calcium phosphate or kaolin, or as soft gelatin capsules wherein the active ingredient is mixed with water soluble carrier such as polyethyl- eneglycol or an oil medium, for example peanut oil, liquid paraffin, or olive oil.
- Aqueous suspensions contain the active material in admixture with excipients suitable for the manufacture of aqueous suspensions.
- excipients are suspending agents, for example sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethyl-cellulose, sodium alginate, polyvinyl-pyrrolidone, gum tragacanth and gum acacia; dispersing or wetting agents may be a naturally-occurring phosphatide, for example lecithin, or condensation products of an alkylene oxide with fatty acids, for example poly oxy ethylene stearate, or condensation products of ethylene oxide with long chain aliphatic alcohols, for example heptadecaethylene- oxycetanol, or condensation products of ethylene oxide with partial esters derived from fatty acids and a hexitol such as polyoxyethylene sorbitol monooleate, or condensation products of ethylene oxide with partial esters derived from fatty acids and hexitol anhydrides, for example polyethylene sorbitan monooleate.
- dispersing or wetting agents may be a naturally-occurring phosphatide, for example lec
- the aqueous suspensions may also contain one or more preservatives, for example ethyl, or n- propyl p-hydroxybenzoate, one or more coloring agents, one or more flavoring agents, and one or more sweetening agents, such as sucrose, saccharin or aspartame.
- Oily suspensions may be formulated by suspending the active ingredient in a vegetable oil, for example arachis oil, olive oil, sesame oil or coconut oil, or in mineral oil such as liquid paraffin.
- the oily suspensions may contain a thickening agent, for example beeswax, hard paraffin or cetyl alcohol. Sweetening agents such as those set forth above, and flavoring agents may be added to provide a palatable oral preparation. These compositions may be preserved by the addition of an anti-oxidant such as butylated hydroxyanisol or alpha-tocopherol.
- Dispersible powders and granules suitable for preparation of an aqueous suspension by the addition of water provide the active ingredient in admixture with a dispersing or wetting agent, suspending agent and one or more preservatives. Suitable dispersing or wetting agents and suspending agents are exemplified by those already mentioned above. Additional excipients, for example sweetening, flavoring and coloring agents, may also be present. These compositions may be preserved by the addition of an anti-oxidant such as ascorbic acid.
- the pharmaceutical compositions of the invention may also be in the form of an oil-in-water emulsions.
- the oily phase may be a vegetable oil, for example olive oil or arachis oil, or a mineral oil, for example liquid paraffin or mixtures of these.
- Suitable emulsifying agents may be naturally-occurring phospha- tides, for example soy bean lecithin, and esters or partial esters derived from fatty acids and hexitol anhydrides, for example sorbitan monooleate, and condensation products of the said partial esters with ethylene oxide, for example polyoxyethylene sorbitan monooleate.
- the emulsions may also contain sweetening, flavouring agents, preservatives and antioxidants.
- Syrups and elixirs may be formulated with sweetening agents, for example glycerol, propylene glycol, sorbitol or sucrose. Such formulations may also contain a demulcent, a preservative, flavoring and coloring agents and antioxidant.
- sweetening agents for example glycerol, propylene glycol, sorbitol or sucrose.
- Such formulations may also contain a demulcent, a preservative, flavoring and coloring agents and antioxidant.
- the pharmaceutical compositions may be in the form of a sterile injectable aqueous solutions.
- acceptable vehicles and solvents that may be employed are water, Ringer's solution and isotonic sodium chloride solution.
- the sterile injectable preparation may also be a sterile injectable oil-in- water microemulsion where the active ingredient is dissolved in the oily phase.
- the active ingredient may be first dissolved in a mixture of soybean oil and lecithin.
- the oil solution then introduced into a water and glycerol mixture and processed to form a microemulsion.
- the injectable solutions or microemulsions may be introduced into a patient's blood-stream by local bolus injection.
- a continuous intravenous delivery device may be utilized.
- An example of such a device is the Deltec CADD-PLUSTM model 5400 intravenous pump.
- the pharmaceutical compositions may be in the form of a sterile injectable aqueous or oleaginous suspension for intramuscular and subcutaneous administration.
- This suspension may be formulated according to the known art using those suitable dispersing or wetting agents and suspending agents which have been mentioned above.
- the sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally-acceptable diluent or solvent, for example as a solution in 1,3-butane diol.
- sterile, fixed oils are conventionally employed as a solvent or suspending medium.
- any bland fixed oil may be employed including synthetic mono- or diglycerides.
- fatty acids such as oleic acid find use in the preparation of injectables.
- compositions of the instant invention may also be administered in the form of a suppositories for rectal administration of the drug.
- These compositions can be prepared by mixing the drug with a suitable non-irritating excipient which is solid at ordinary temperatures but liquid at the rectal temperature and will therefore melt in the rectum to release the drug.
- suitable non-irritating excipient include cocoa butter, glycerinated gelatin, hydrogenated vegetable oils, mixtures of polyethylene glycols of various molecular weights and fatty acid esters of polyethylene glycol.
- compositions, ointments, jellies, solutions or suspensions, etc., containing the compounds of the instant invention are employed.
- topical application shall include mouth washes and gargles.
- the compounds useful in the instant method of treatment of the present invention can be administered in intranasal form via topical use of suitable intranasal vehicles and delivery devices, or via transdermal routes, using those forms of transdermal skin patches well known to those of ordinary skill in the art.
- the dosage administration will, of course, be continuous rather than intermittent throughout the dosage regimen.
- composition is intended to encompass a product comprising the specified ingredients in the specific amounts, as well as any product which results, directly or indirectly, from combination of the specific ingredients in the specified amounts.
- the instant compounds may also be co-administered with other well known therapeutic agents that are selected for their particular usefulness against the condition that is being treated.
- the selective inhibitors of Akt of the instant invention are also useful in combination with known therapeutic agents and anti-cancer agents.
- instant selective inhibitors of Akt are useful in combination with known anti-cancer agents.
- Combinations of the presently disclosed selective inhibitors of Akt with other anti-cancer or chemotherapeutic agents are within the scope of the invention. Examples of such agents can be found in Cancer Principles and
- anti- cancer agents include the following: estrogen receptor modulators, androgen receptor modulators, retinoid receptor modulators, cytotoxic/cytostatic agents, antiproliferative agents, prenyl-protein transferase inhibitors, HMG-CoA reductase inhibitors and other angiogenesis inhibitors, inhibitors of cell proliferation and survival signaling, and agents that interfere with cell cycle checkpoints.
- the instant selective inhibitors of Akt are particularly useful when co-administered with radiation therapy.
- the instant selective inhibitors of Akt are also useful in combination with known anti-cancer agents including the following: estrogen receptor modulators, androgen receptor modulators, retinoid receptor modulators, cytotoxic agents, antiproliferative agents, prenyl-protein transferase inhibitors, HMG-CoA reductase inhibitors, HIV protease inhibitors, reverse transcriptase inhibitors, and other angiogenesis inhibitors.
- known anti-cancer agents including the following: estrogen receptor modulators, androgen receptor modulators, retinoid receptor modulators, cytotoxic agents, antiproliferative agents, prenyl-protein transferase inhibitors, HMG-CoA reductase inhibitors, HIV protease inhibitors, reverse transcriptase inhibitors, and other angiogenesis inhibitors.
- Estrogen receptor modulators refers to compounds that interfere with or inhibit the binding of estrogen to the receptor, regardless of mechanism.
- Examples of estrogen receptor modulators include, but are not limited to, tamoxifen, raloxifene, idoxifene, LY353381, LY117081, toremifene, fulvestrant, 4-[7-(2,2- dimethyl- 1 -oxopropoxy-4-methyl-2- [4- [2-( 1 -piperidinyl)ethoxy]phenyl]-2H- 1 - benzopyran-3-yl]-phenyl-2,2-dimethylpropanoate, 4,4'-dihydroxybenzophenone-2,4- dinitrophenyl-hydrazone, and SH646.
- Androgen receptor modulators refers to compounds which interfere or inhibit the binding of androgens to the receptor, regardless of mechanism.
- Examples of androgen receptor modulators include finasteride and other 5 » -reductase inhibitors, nilutamide, flutamide, bicalutamide, liarozole, and abiraterone acetate.
- Retinoid receptor modulators refers to compounds which interfere or inhibit the binding of retinoids to the receptor, regardless of mechanism.
- retinoid receptor modulators include bexarotene, tretinoin, 13-cis-retinoic acid, 9-cis-retinoic acid, ⁇ -difluoromethylornithine, ILX23-7553, trans-N-(4'- hydroxyphenyl) retinamide, and N-4-carboxyphenyl retinamide.
- Cytotoxic/cytostatic agents refer to compounds which cause cell death or inhibit cell proliferation primarily by interfering directly with the cell's functioning or inhibit or interfere with cell myosis, including alkylating agents, tumor necrosis factors, intercalators, hypoxia activatable compounds, microtubule inhibitors/microtubule-stabilizing agents, inhibitors of mitotic kinesins, inhibitors of kinases involved in mitotic progression, antimetabolites, biological response modifiers, hormonal/anti-hormonal therapeutic agents, haematopoietic growth factors, monoclonal antibody targeted therapeutic agents, topoisomerase inhibitors, proteosome inhibitors and ubiquitin ligase inhibitors.
- cytotoxic agents include, but are not limited to, sertenef, cachectin, ifosfamide, tasonermin, lonidamine, carboplatin, altretamine, prednimustine, dibromodulcitol, ranimustine, fotemustine, nedaplatin, oxaliplatin, temozolomide, heptaplatin, estramustine, improsulfan tosilate, trofosfamide, nimustine, dibrospidium chloride, pumitepa, lobaplatin, satraplatin, profiromycin, cisplatin, irofulven, dexifosfamide, cis-aminedichloro(2-methyl-pyridine)platinum, benzylguanine, glufosfamide, GPX100, (trans, trans, trans)-bis-mu ⁇ (hexane-l,6- diamine)-m
- hypoxia activatable compound is tirapazamine.
- proteosome inhibitors include but are not limited to lactacystin and MLN-341 (Velcade).
- microtubule inhibitors/microtubule-stabilising agents include paclitaxel, vindesine sulfate, 3',4'-didehydro-4'-deoxy-8'- norvincaleukoblastine, docetaxol, rhizoxin, dolastatin, mivobulin isethionate, auristatin, cemadotin, RPR109881, BMS184476, vinflunine, cryptophycin, 2,3,4,5,6- pentafluoro-N-(3-fluoro-4-methoxyphenyl) benzene sulfonamide, anhydrovinblastine, N,N-dimethyl-L-valyl-L-valyl-N-methyl-L-valyl-L-prolyl-L-
- topoisomerase inhibitors are topotecan, hycaptamine, irinotecan, rubitecan, 6-ethoxypropionyl-3',4'-O-exo-benzylidene- chartreusin, 9-methoxy-N,N-dimethyl-5-nitropyrazolo[3,4,5-kl]acridine-2-(6H) propanamine, l-amino-9-ethyl-5-fluoro-2,3-dihydro-9-hydroxy-4-methyl-lH,12H- benzo[de]pyrano[3',4':b,7]-indolizino[l,2b]quinoline-10,13(9H,15H)dione, lurtotecan, 7-[2-(N-isopropylamino)ethyl]-(20S)camptothecin, BNP1350, BNPIllOO, BN80915, BN80942, etoposide
- inhibitors of mitotic kinesins are described in PCT Publications WO 01/30768 and WO 01/98278, and pending U.S. Ser. Nos. 60/338,779 (filed December 6, 2001), 60/338,344 (filed December 6, 2001), 60/338,383 (filed December 6, 2001), 60/338,380 (filed December 6, 2001), 60/338,379 (filed December 6, 2001) and 60/344,453 (filed November 7, 2001).
- inhibitors of mitotic kinesins include, but are not limited to inhibitors of KSP, inhibitors of MKLPl, inhibitors of CENP-E, inhibitors of MCAK and inhibitors of Rab6-KIFL.
- “Inhibitors of kinases involved in mitotic progression” include, but are not limited to, inhibitors of aurora kinases, inhibitors of Polo-like kinases (PLK; in particular inhibitors of PLK-1), inhibitors of bub-1 and inhibitors of bub-Rl.
- Antiproliferative agents includes antisense RNA and DNA oligonucleotides such as G3139, ODN698, RVASKRAS, GEM231, and INX3001, and antimetabolites such as enocitabine, carmofur, tegafur, pentostatin, doxifluridine, trimetrexate, fludarabine, capecitabine, galocitabine, cytarabine ocfosfate, fosteabine sodium hydrate, raltitrexed, paltitrexid, emitefur, tiazofurin, decitabine, nolatrexed, pemetrexed, nelzarabine, 2'-deoxy-2'-methylidenecytidine, 2'-fluoromethylene-2'- deoxycytidine, N-[5-(2,3-dihydro-benzofuryl)sulfonyl]-N'-(3,4-dichlorophenyl)ure
- monoclonal antibody targeted therapeutic agents include those therapeutic agents which have cytotoxic agents or radioisotopes attached to a cancer cell specific or target cell specific monoclonal antibody. Examples include Bexxar.
- HMG-CoA reductase inhibitors refers to inhibitors of 3-hydroxy-3- methylglutaryl-CoA reductase.
- Compounds which have inhibitory activity for HMG- CoA reductase can be readily identified by using assays well-known in the art. For example, see the assays described or cited in U.S. Patent 4,231,938 at col. 6, and WO 84/02131 at pp. 30-33.
- the terms "HMG-CoA reductase inhibitor” and “inhibitor of HMG-CoA reductase” have the same meaning when used herein.
- HMG-CoA reductase inhibitors examples include but are not limited to lovastatin (MEVACOR®; see U.S. Patent Nos. 4,231,938, 4,294,926 and 4,319,039), simvastatin (ZOCOR® ; see U.S. Patent Nos. 4,444,784, 4,820,850 and 4,916,239), pravastatin (PRAVACHOL®; see U.S. Patent Nos. 4,346,227, 4,537,859, 4,410,629, 5,030,447 and 5,180,589), fluvastatin (LESCOL®; see U.S. Patent Nos.
- HMG-CoA reductase inhibitor as used herein includes all pharmaceutically acceptable lactone and open-acid forms (i.e., where the lactone ring is opened to form the free acid) as well as salt and ester forms of compounds which have HMG-CoA reductase inhibitory activity, and therefor the use of such salts, esters, open-acid and lactone forms is included within the scope of this invention.
- An illustration of the lactone portion and its corresponding open-acid form is shown below as structures I andH
- HMG-CoA reductase inhibitors where an open-acid form can exist
- salt and ester forms may be formed from the open-acid, and all such forms are included within the meaning of the term "HMG-CoA reductase inhibitor" as used herein.
- the HMG-CoA reductase inhibitor is selected from lovastatin and simvastatin, and in a further embodiment, simvastatin.
- the term "pharmaceutically acceptable salts" with respect to the HMG-CoA reductase inhibitor shall mean non-toxic salts of the compounds employed in this invention which are generally prepared by reacting the free acid with a suitable organic or inorganic base, particularly those formed from cations such as sodium, potassium, aluminum, calcium, lithium, magnesium, zinc and tetramethylammonium, as well as those salts formed from amines such as ammonia, ethylenediamine, N- methylglucamine, lysine, arginine, ornithine, choline, N,N'-dibenzylethylenediamine, chloroprocaine, diethanolamine, procaine, N-benzylphenethylamine, 1-p- chlorobenzyl-2-pyrrolidine- 1 ' -yl-methylbenz-imidazole, diethylamine, piperazine, and tris(hydroxymethyl) aminomethane.
- a suitable organic or inorganic base particularly those formed from c
- salt forms of HMG- CoA reductase inhibitors may include, but are not limited to, acetate, benzenesulfonate, benzoate, bicarbonate, bisulfate, bitartrate, borate, bromide, calcium edetate, camsylate, carbonate, chloride, clavulanate, citrate, dihydrochloride, edetate, edisylate, estolate, esylate, fumarate, gluceptate, gluconate, glutamate, glycollylarsanilate, hexylresorcinate, hydrabamine, hydrobromide, hydrochloride, hydroxynapthoate, iodide, isothionate, lactate, lactobionate, laurate, malate, maleate, mandelate, mesylate, methylsulfate, mucate, napsylate, nitrate, oleate, oxalate, pamao
- Ester derivatives of the described HMG-CoA reductase inhibitor compounds may act as prodrugs which, when absorbed into the bloodstream of a warm-blooded animal, may cleave in such a manner as to release the drug form and permit the drug to afford improved therapeutic efficacy.
- Prenyl-protein transferase inhibitor refers to a compound which inhibits any one or any combination of the prenyl-protein transferase enzymes, including farnesyl-protein transferase (FPTase), geranylgeranyl-protein transferase type I (GGPTase-I), and geranylgeranyl-protein transferase type-II (GGPTase-II, also called Rab GGPTase).
- FPTase farnesyl-protein transferase
- GGPTase-I geranylgeranyl-protein transferase type I
- GGPTase-II geranylgeranyl-protein transferase type-II
- prenyl-protein transferase inhibiting compounds examples include (+)-6-[amino(4-chlorophenyl)(l-methyl-lH-imidazol-5-yl)methyl]-4-(3- chlorophenyl)-l-methyl-2(lH)-quinolinone, (-)-6-[amino(4-chlorophenyl)(l-methyl- l ⁇ -imidazol-5-yl)methyl]-4-(3-chlorophenyl)-l-methyl-2(lH)-quinolinone, (+)-6- [amino(4-chlorophenyl)(l-methyl-l ⁇ -imidazol-5-yl) methyl]-4-(3-chlorophenyl)-l- methyl-2(lH)-quinolinone, 5(S)-n-butyl-l-(2,3-dimethylphenyl)-4-[l-(4- cyanobenzyl)-5-imidazo
- prenyl-protein transferase inhibitors can be found in the following publications and patents: WO 96/30343, WO 97/18813, WO 97/21701, WO 97/23478, WO 97/38665, WO 98/28980, WO 98/29119, WO 95/32987, U.S. Patent No. 5,420,245, U.S. Patent No. 5,523,430, U.S. Patent No. 5,532,359, U.S. Patent No. 5,510,510, U.S. Patent No. 5,589,485, U.S. Patent No. 5,602,098, European Patent Publ. 0 618 221, European Patent Publ. 0 675 112, European Patent Publ.
- Angiogenesis inhibitors refers to compounds that inhibit the formation of new blood vessels, regardless of mechanism.
- angiogenesis inhibitors include, but are not limited to, tyrosine kinase inhibitors, such as inhibitors of the tyrosine kinase receptors Flt-1 (VEGFR1) and Flk-1/KDR (VEGFR2), inhibitors of epidermal-derived, fibroblast-derived, or platelet derived growth factors, MMP (matrix metalloprotease) inhibitors, integrin blockers, interferon- ⁇ , interleukin- 12, pentosan polysulfate, cyclooxygenase inhibitors, including nonsteroidal anti- inflammatories (NS AIDs) like aspirin and ibuprofen as well as selective cyclooxy- genase-2 inhibitors like celecoxib and rofecoxib (PNAS, Vol.
- tyrosine kinase inhibitors such as inhibitors of the tyrosine kinase receptors Flt-1 (VEGFR1) and Flk-1/KDR (VEG
- steroidal anti-inflammatories such as corticosteroids, mineralocorticoids, dexamethasone, prednisone, prednisolone, methylpred, betamethasone), carboxyamidotriazole, combretastatin A-4, squalamine, 6-O-chloroacetyl-carbonyl)- fumagillol, thalidomide, angiostatin, troponin-1, angiotensin II antagonists (see Fernandez et al., J. Lab. Clin. Med.
- agents that modulate or inhibit angiogenesis and may also be used in combination with the compounds of the instant invention include agents that modulate or inhibit the coagulation and fibrinolysis systems (see review in Clin. Chem. La. Med. 38:679-692 (2000)).
- agents that modulate or inhibit the coagulation and fibrinolysis pathways include, but are not limited to, heparin (see Thromb. Haemost. 80:10-23 (1998)), low molecular weight heparins and carboxypeptidase U inhibitors (also known as inhibitors of active thrombin activatable fibrinolysis inhibitor [TAFIa]) (see Thrombosis Res. 101:329-354 (2001)).
- TAFIa inhibitors have been described in U.S. Ser. ⁇ os. 60/310,927 (filed August 8, 2001) and 60/349,925 (filed January 18, 2002).
- Agents that interfere with cell cycle checkpoints refer to compounds that inhibit protein kinases that transduce cell cycle checkpoint signals, thereby sensitizing the cancer cell to D ⁇ A damaging agents.
- agents include inhibitors of ATR, ATM, the Chkl and Chk2 kinases and cdk and cdc kinase inhibitors and are specifically exemplified by 7-hydroxystaurosporin, flavopiridol, CYC202 (Cyclacel) and BMS-387032.
- “Inhibitors of cell proliferation and survival signalling pathway” refer to compounds that inhibit signal transduction cascades downstream of cell surface receptors.
- Such agents include inhibitors of serine/threonine kinases (including but not limited to inhibitors of Akt such as described in WO 02/083064, WO 02/083139, WO 02/083140 and WO 02/083138), inhibitors of Raf kinase (for example BAY-43- 9006 ), inhibitors of MEK (for example CI-1040 and PD-098059), inhibitors of mTOR (for example Wyeth CCI-779), and inhibitors of PI3K (for example LY294002).
- serine/threonine kinases including but not limited to inhibitors of Akt such as described in WO 02/083064, WO 02/083139, WO 02/083140 and WO 02/083138
- inhibitors of Raf kinase for example BAY-43- 9006
- NSAID's which are potent COX-2 inhibiting agents.
- an NS AID is potent if it possess an IC 50 for the inhibition of COX-2 of l ⁇ M or less as measured by cell or microsomal assays.
- NSAID's which are selective COX-2 inhibitors are defined as those which possess a specificity for inhibiting COX-2 over COX-1 of at least 100 fold as measured by the ratio of IC50 for COX-2 over IC50 for COX-1 evaluated by cell or microsomal assays.
- Such compounds include, but are not limited to those disclosed in U.S. Patent 5,474,995, issued December 12, 1995, U.S. Patent 5,861,419, issued January 19, 1999, U.S.
- Inhibitors of COX-2 that are particularly useful in the instant method of treatment are: 3-phenyl-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone; and
- angiogenesis inhibitors include, but are not limited to, endostatin, ukrain, ranpirnase, IM862, 5-methoxy-4-[2-methyl-3-(3-methyl-2- butenyl)oxiranyl]-l-oxaspiro[2,5]oct-6-yl(chloroacetyl)carbamate, acetyldinanaline, 5-amino-l-[[3,5-dichloro-4-(4-chlorobenzoyl)phenyl]methyl]-lH-l,2,3-triazole-4- carboxamide,CM101, squalamine, combretastatin, RPI4610, NX31838, sulfated mannopentaose phosphate, 7,7-(carbonyl-bis[imino-N-methyl-4,2- pyrrolocarbonylimino[N-methyl-4,2-pyrrole]-carbonylimino]-bis-(l,
- integrin blockers refers to compounds which selectively antagonize, inhibit or counteract binding of a physiological ligand to the ⁇ v ⁇ 3 integrin, to compounds which selectively antagonize, inhibit or counteract binding of a physiological ligand to the ⁇ v ⁇ 5 integrin, to compounds which antagonize, inhibit or counteract binding of a physiological ligand to both the o. ⁇ 3 integrin and the ⁇ v ⁇ 5 integrin, and to compounds which antagonize, inhibit or counteract the activity of the particular integrin(s) expressed on capillary endothelial cells.
- the term also refers to antagonists of the ⁇ v ⁇ 6-* O- ⁇ -.
- the term also refers to antagonists of any combination of ⁇ v ⁇ 3, ⁇ v ⁇ 5, ⁇ v ⁇ 6, ccv ⁇ , oq ⁇ l, «2 ⁇ «5 ⁇ l, ⁇ e ⁇ l and ⁇ 6 ⁇ 4 integrins.
- tyrosine kinase inhibitors include N-
- Combinations with compounds other than anti-cancer compounds are also encompassed in the instant methods.
- combinations of the instantly claimed compounds with PPAR- ⁇ (i.e., PPAR-gamma) agonists and PPAR- ⁇ (i.e., PPAR-delta) agonists are useful in the treatment of certain malingnancies.
- PPAR- ⁇ and PPAR- ⁇ are the nuclear peroxisome proliferator-activated receptors ⁇ and ⁇ .
- the expression of PPAR- ⁇ on endothelial cells and its involvement in angiogenesis has been reported in the literature (see J. Cardiovasc. Pharmacol. 1998; 31:909-913; J. Biol. Chem. 1999;274:9116-9121; Invest.
- PPAR- ⁇ agonists and PPAR- ⁇ / ⁇ agonists include, but are not limited to, thiazolidinediones (such as DRF2725, CS-011, troglitazone, rosiglitazone, and pioglitazone), fenofibrate, gemfibrozil, clofibrate, GW2570, SB219994, AR-thiazolidinediones (such as DRF2725, CS-011, troglitazone, rosiglitazone, and pioglitazone), fenofibrate, gemfibrozil, clofibrate, GW2570, SB219994, AR-thiazolidinediones (such as DRF2725, CS-011, troglitazone, rosiglitazone, and pioglitazone), fenofibrate, gemfibrozil, clofibrate, GW2570, SB219994, AR-thiazolidinedi
- Another embodiment of the instant invention is the use of the presently disclosed selective inhibitors of Akt in combination with gene therapy for the treatment of cancer.
- Gene therapy can be used to deliver any tumor suppressing gene. Examples of such genes include, but are not limited to, p53, which can be delivered via recombinant virus-mediated gene transfer (see U.S. Patent No.
- a uPA uPAR antagonist (Adeno virus-Mediated Delivery of a uPA/uPAR Antagonist Suppresses Angiogenesis-Dependent Tumor Growth and Dissemination in Mice," Gene Therapy, August 1998;5(8): 1105-13), and interferon gamma (J. Immunol. 2000;164:217-222).
- the selective inhibitors of Akt of the instant invention may also be administered in combination with an inhibitor of inherent multidrug resistance (MDR), in particular MDR associated with high levels of expression of transporter proteins.
- MDR inhibitors include inhibitors of p-glycoprotein (P-gp), such as LY335979, XR9576, OC144-093, R101922, VX853 and PSC833 (valspodar).
- P-gp p-glycoprotein
- the selective inhibitors of Akt of the present invention may be employed in conjunction with anti-emetic agents to treat nausea or emesis, including acute, delayed, late-phase, and anticipatory emesis, which may result from the use of a selective inhibitor of Akt of the present invention, alone or with radiation therapy.
- a compound of the present invention may be used in conjunction with other anti-emetic agents, especially neurokinin-1 receptor antagonists, 5HT3 receptor antagonists, such as ondansetron, granisetron, tropisetron, and zatisetron, GABAB receptor agonists, such as baclofen, a corticosteroid such as Decadron (dexamethasone), Kenalog, Aristocort, Nasalide, Preferid, Benecorten or others such as disclosed in U.S.Patent Nos.
- neurokinin-1 receptor antagonists especially 5HT3 receptor antagonists, such as ondansetron, granisetron, tropisetron, and zatisetron, GABAB receptor agonists, such as baclofen, a corticosteroid such as Decadron (dexamethasone), Kenalog, Aristocort, Nasalide, Preferid, Benecorten or others such as disclosed in U.S.Patent Nos.
- an antidopaminergic such as the phenothiazines (for example prochlorperazine, fluphenazine, thioridazine and mesoridazine), metoclopramide or dronabinol.
- phenothiazines for example prochlorperazine, fluphenazine, thioridazine and mesoridazine
- metoclopramide metoclopramide or dronabinol.
- conjunctive therapy with an anti-emesis agent selected from a neurokinin-1 receptor antagonist, a 5HT3 receptor antagonist and a corticosteroid is preferred.
- Neurokinin-1 receptor antagonists of use in conjunction with the selective inhibitors of Akt of the present invention are fully described, for example, in U.S. Patent Nos. 5,162,339, 5,232,929, 5,242,930, 5,373,003, 5,387,595, 5,459,270, 5,494,926, 5,496,833, 5,637,699, 5,719,147; European Patent Publication Nos.
- the neurokinin-1 receptor antagonist for use in conjunction with the selective inhibitors of Akt of the present invention is selected from: 2-(R)-(l-(R)-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-(S)-(4-fluorophenyl)-4- (3-(5-oxo-lH,4H-l,2,4-triazolo)methyl)morpholine, or a pharmaceutically acceptable salt thereof, which is described in U.S. Patent No. 5,719,147.
- the selective inhibitors of Akt of the instant invention may also be administered with an agent useful in the treatment of anemia.
- an anemia treatment agent is, for example, a continuous eythropoiesis receptor activator (such as epoetin alfa).
- the selective inhibitors of Akt of the instant invention may also be administered with an agent useful in the treatment of neutropenia.
- a neutropenia treatment agent is, for example, a hematopoietic growth factor which regulates the production and function of neutrophils such as a human granulocyte colony stimulating factor, (G-CSF).
- G-CSF human granulocyte colony stimulating factor
- Examples of a G-CSF include filgrastim.
- the selective inhibitors of Akt of the instant invention may also be administered with an immunologic-enhancing drug, such as levamisole, isoprinosine and Zadaxin.
- an immunologic-enhancing drug such as levamisole, isoprinosine and Zadaxin.
- the scope of the instant invention encompasses the use of the instantly claimed selective inhibitors of Akt in combination with a second compound selected from:
- retinoid receptor modulator 4) a cytotoxic/cytostatic agent
- the angiogenesis inhibitor to be used as the second compound is selected from a tyrosine kinase inhibitor, an inhibitor of epidermal- derived growth factor, an inhibitor of fibroblast-derived growth factor, an inhibitor of platelet derived growth factor, an MMP (matrix metalloprotease) inhibitor, an integrin blocker, interferon- ⁇ , interleukin-12, pentosan polysulfate, a cyclooxygenase inhibitor, carboxyamidotriazole, combretastatin A-4, squalamine, 6-O-chloroacetyl- carbonyl)-fumagillol, thalidomide, angiostatin, troponin-1, or an antibody to VEGF.
- the estrogen receptor modulator is tamoxifen or raloxifene.
- a method of treating cancer that comprises administering a therapeutically effective amount of a selective inhibitor of Akt of the instant invention in combination with radiation therapy and/or in combination with a second compound selected from:
- yet another embodiment of the invention is a method of treating cancer that comprises administering a therapeutically effective amount of a selective inhibitor of Akt of the instant invention in combination with paclitaxel or trastuzumab.
- the invention further encompasses a method of treating or preventing cancer that comprises administering a therapeutically effective amount of a selective inhibitor of Akt of the instant invention in combination with a COX-2 inhibitor.
- the instant invention also includes a pharmaceutical composition useful for treating or preventing cancer that comprises a therapeutically effective amount of a selective inhibitor of Akt of the instant invention and a second compound selected from:
- composition according to this invention When a composition according to this invention is administered into a human subject, the daily dosage will normally be determined by the prescribing physician with the dosage generally varying according to the age, weight, and response of the individual patient, as well as the severity of the patient's symptoms.
- a suitable amount of an inhibitor of one, two or all three of the Akt/PKB isoforms is administered to a mammal undergoing treatment for cancer.
- Administration occurs in an amount of inhibitor of between about 0.1 mg/kg of body weight to about 60 mg/kg of body weight per day, preferably of between 0.5 mg/kg of body weight to about 40 mg/kg of body weight per day.
- a particular therapeutic dosage that comprises the instant composition includes from about 0.01 mg to about 1000 mg of inhibitor of Akt/PKB.
- the dosage comprises from about 1 mg to about 1000 mg of inhibitor of Akt/PKB.
- R 1 represents phenyl, furyl, thienyl or pyridinyl, any of which groups may be optionally substituted with one, two or three substituents, independently selected from: a) halogen; b) C M alkyl; c) C M alkoxy; d) cyano; e) di(C._ 4 alkyl)amino; f) hydroxy;
- R 2 represents amino-C 1 6 alkyl, C. .4 alkylamino-(C 1.6 )alkyl, di(C._ 4 alkyl)amino-(C. .6 )alkyl, hydroxy-(C j.6 )alkyl or C._ 4 alkoxy-(C 1 6 )alkyl, any of which groups may be optionally substituted;
- R 3 represents hydrogen or C,_ 6 alkyl;
- R 4 is selected from: C 3 __ cycloalkyl and aryl, any of which groups may be optionally substituted;
- R 1 represents phenyl, furyl, thienyl or pyridinyl, any of which groups may be optionally substituted with one, two or three substituents, independently selected from: a) halogen; b) C. .4 alkyl; c) C. .4 alkoxy; d) cyano; e) di(C._ 4 alkyl)amino; f) hydroxy;
- R 2 represents amino-C._ 6 alkyl, C M alkylamino-(C._ 6 )alkyl, di(C._ 4 alkyl) amino-(C. .6 )alkyl, hydroxy-(C 1 6 )alkyl or C M alkoxy-(C. .6 )alkyl, any of which groups may be optionally substituted; and
- R 4 is selected from: C 3.7 cycloalkyl and aryl, any of which groups may be optionally substituted;
- R 1 represents phenyl, furyl, thienyl or pyridinyl, any of which groups may be optionally substituted with one, two or three substituents, independently selected from: a) halogen; b) C M alkyl; c) C j _ 4 alkoxy; d) cyano; e) di(C._ 4 alkyl)amino; f) hydroxy;
- R 2 represents amino-C. .6 alkyl, C._ 4 alkylamino-(C 1 6 )alkyl, di(C M alkyl)amino-(C. .6 )alkyl, hydroxy- C j alkyl or C._ 4 alkoxy-(C 6 )alkyl, any of which groups may be optionally substituted;
- R 3 represents hydrogen or C M alkyl
- R 4 independently represents hydrogen, C._ 6 -alkyl, halogen, HO- or C._ 6 alkyl-O; r is 1 or 2;
- R 1 independently represents amino, C 1 6 -alkyl amino, di-C,_ 6 - alkylamino, amino-C._ 6 alkyl, C. .5 alkylamino-(C. .6 )alkyl or di(C 1 6 alkyl)amino-
- R 2 independently represents hydrogen, amino, C, .6 -alkyl amino, di-C. .6 alkylamino, amino-C. .6 alkyl, C, .6 alkylamino-(C. .6 )alkyl or di(C j.6 alkyl)amino-(C. .6 ) alkyl;
- R 1 independently represents hydrogen, C. .6 -alkyl, halogen, HO- or C. .6 alkyl-O;
- C. .6 alkyl includes methyl and ethyl groups, and straight-chained or branched propyl, butyl, pentyl and hexyl groups. Particular alkyl groups are methyl, ethyl, n-propyl, isopropyl, tert-butyl and 2,2- dimethylpropyl. Derived expressions such as “C._ 6 alkoxy” are to be construed accordingly.
- the expression “C._ 4 alkyl” includes methyl and ethyl groups, and straight-chained or branched propyl and butyl groups. Particular alkyl groups are methyl, ethyl, rc-propyl, isopropyl and tert-butyl. Derived expressions such as “C._ 4 alkoxy” are to be construed accordingly.
- Typical C 3.7 cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl.
- C 37 cycloalkyl(C. .6 )alkyl as used herein includes cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl and cyclohexylmethyl.
- Typical C 4.7 cycloalkenyl groups include cyclobutenyl, cyclopentenyl and cyclohexenyl.
- Typical aryl groups include phenyl and naphthyl, preferably phenyl.
- aryl(C. .6 )alkyl as used herein includes benzyl, phenylethyl, phenylpropyl and naphthylmethyl.
- halogen as used herein includes fluorine, chlorine, bromine and iodine, especially fluorine or chlorine.
- the salts of the compounds of formula I will be pharmaceutically acceptable salts.
- Other salts may, however, be useful in the preparation of the compounds according to the invention or of their pharmaceutically acceptable salts.
- Suitable pharmaceutically acceptable salts of the compounds of this invention include acid addition salts which may, for example, be formed by mixing a solution of the compound according to the invention with a solution of a pharmaceutically acceptable acid such as hydrochloric acid, sulphuric acid, methanesulphonic acid, fumaric acid, maleic acid, succinic acid, acetic acid, benzoic acid, oxalic acid, citric acid, tartaric acid, carbonic acid or phosphoric acid.
- a pharmaceutically acceptable acid such as hydrochloric acid, sulphuric acid, methanesulphonic acid, fumaric acid, maleic acid, succinic acid, acetic acid, benzoic acid, oxalic acid, citric acid, tartaric acid, carbonic acid or phosphoric acid.
- suitable pharmaceutically acceptable salts thereof may include alkali metal salts, e.g. sodium or potassium salts; alkaline earth metal salts, e.g. calcium or magnesium salts; and salts formed with suitable organic ligands, e.g. quaternary ammonium salts.
- the present invention includes within its scope prodrugs of the compounds of formulae I-V above. In general, such prodrugs will be functional derivatives of the compounds of formulae I-V which are readily convertible in vivo into the required compound of formulae I-V. Conventional procedures for the selection and preparation of suitable prodrug derivatives are described, for example, in Design of Prodrugs, ed. H. Bundgaard, Elsevier, 1985.
- the compounds useful in the instant methods of treatment have at least one asymmetric center, they may accordingly exist as enantiomers. Where such compounds possess two or more asymmetric centers, they may additionally exist as diastereoisomers. It is to be understood that all such isomers and mixtures thereof in any proportion are encompassed within the scope of the present invention.
- substituent R 4 examples include methyl, ethyl, isopropyl, tert-butyl, 1,1-dimethylpropyl, methyl-cyclopropyl, cyclobutyl, methyl-cyclobutyl, cyclopentyl, methyl-cyclopentyl, cyclohexyl, cyclobutenyl, phenyl, pyrrolidinyl, methyl-pyrrolidinyl, piperidinyl, morpholinyl, thiomorpholinyl, pyridinyl, furyl, thienyl, chloro-thienyl and diethylamino.
- the substituent R represents C 3 _ 7 cycloalkyl or phenyl, either unsubstituted or substituted by C._ 6 alkyl, especially methyl.
- Z represents cyclobutyl or phenyl. Examples of typical optional substituents on the group R 1 include methyl, fluoro and methoxy.
- R 1 include cyclopropyl, phenyl, methylphenyl, fluorophenyl, difluorophenyl, methoxyphenyl, furyl, thienyl, methyl- thienyl and pyridinyl.
- R 2 represents ammo-C ⁇ - alkyl, C._ 4 alkylamino-(C 1.6 )alkyl or di(C M alkyl)amino-(C. .6 )alkyl.
- R 2 include but are not limited to dimethylaminomethyl, aminoethyl, dimethylaminoethyl, diethylaminoethyl, 3-dimethylaminopropyl, 3-methylaminopropyl, 3-dimethylamino- 2,2-dimethylpropyl and , 3-dimethylamino-2-methylpropyl.
- R 3 represents hydrogen or methyl.
- the compound that selectively inhibits one or two of the Akt/PKB isoforms is selected from:
- R 2 is as defined with reference to formula I above;
- R 4 is selected from: C 3.7 cycloalkyl and phenyl, any of which groups may be optionally substituted.
- m is O, 1, 2 or 3;
- R 5 independently represents halogen, C M alkyl or C._ 6 alkoxy; ii) a compound of the formula IIA:
- R 2 is as defined with reference to formula II above;
- R 4 is selected from: C 3.7 cycloalkyl and phenyl, any of which groups may be optionally substituted.
- m is O, 1, 2 or 3;
- R 5 independently represents halogen, C. .4 alkyl or C. .6 alkoxy
- R 1 independently represents amino, C. .6 -alkyl amino, di-C._ 6 - alkylamino, amino-C. . - alkyl, C._ 6 alkylamino-(C 1.6 )alkyl or di(C._ 6 alkyl)amino- (C.Jalkyl; or the pharmaceutically acceptable salts thereof.
- n is O, 1, 2 or 3; p is 0, 1 or 2; r is O or 1; s is O or 1;
- u, v, w and x are independently selected from: CH and N, provided that only one of u, v, w and x may be N;
- Rl is independently selected from:
- R2 is independently selected from:
- R-5 is independently selected from: 1) H,
- R 6 is NR7R8, (C ⁇ -C6)alkyl, (C ⁇ -C6)perfluoroalkyl, (C3-C6)cycloalkyl, noboranyl, aryl, 2,2,2-trifluoroethyl, benzyl or heterocyclyl, said alkyl, cycloalkyl, noboranyl, aryl, heterocyclyl and benzyl is optionally substituted with one or more substituents selected from R z ;
- R7 and R8 are independently selected from:
- Ci-Cio alkyl 6) Ci-Cio alkyl, 7) aryl,
- Rz is selected from:
- R a is (Ci-C6)alkyl, (C3-C6)cycloalkyl, substituted or unsubstituted aryl, or heterocyclyl;
- R c is selected from:
- aisOorl bisOor 1; m is 0, 1 or 2; nisO, 1, 2 or 3; p is 0, 1 or 2; qisO, 1,2, 3 or 4; r is 0 or 1 ; sisOor 1; t is 2, 3, 4, 5 or 6;
- u, v, w and x are independently selected from: CH and N;
- y and z are independently selected from: CH and N, provided that at least one of y and z is N;
- Q is selected from: -NR5R6, aryl and heterocyclyl, said aryl and heterocycle which is optionally substituted with one to three RZ;
- Rl is independently selected from:
- R2 is independently selected from:
- R3 and R are independently selected from: H, Ci-C ⁇ -alkyl and C ⁇ -C6- perfluoroalkyl, or
- R3 and R4 are combined to form -(CH2)t- wherein one of the carbon atoms is optionally replaced by a moiety selected from O, S(O) , -N(Rb)C(O)-, and -N(COR a )-;
- R5 and R I are independently selected from:
- R-5 and R6 can be taken together with the nitrogen to which they are attached to form a monocyclic or bicyclic heterocycle with 5-7 members in each ring and optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said monocyclic or bicyclic heterocycle optionally substituted with one or more substituents selected from R z ;
- R7 is independently selected from:
- Rz is selected from:
- alkyl, alkenyl, alkynyl, cycloalkyl, aryl, and heterocyclyl is optionally substituted with up to three substituents selected from Rb, OH, (C ⁇ -C6)alkoxy, halogen, CO2H,
- R a is substituted or unsubstituted (Ci-C6)alkyl, substituted or unsubstituted (C2-
- C6alkenyl substituted or unsubstituted (C2-C6)alkynyl, substituted or unsubstituted (C3-C6)cycloalkyl, substituted or unsubstituted aryl, (C ⁇ -C6)perfluoroalkyl, 2,2,2- trifluoroethyl, or substituted or unsubstituted heterocyclyl; and
- Re is selected from 1) H,
- Q is selected from: -NR7R8 and heterocyclyl, the heterocyclyl optionally substituted with one or two RZ;
- Rl is independently selected from:
- R2 is independently selected from:
- R7 and R8 are independently selected from:
- R7 and R8 can be taken together with the nitrogen to which they are attached to form a monocyclic or bicyclic heterocycle with 5-7 members in each ring and optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said monocyclic or bicyclic heterocycle optionally substituted with one or more substituents selected from R z ;
- alkyl, alkenyl, alkynyl, cycloalkyl, aryl, and heterocyclyl is optionally substituted with up to three substituents selected from Rb, OH, (C ⁇ -C6)alkoxy, halogen, CO2H,
- R a is (C ⁇ -C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, (C3-C6)cycloalkyl, substituted or unsubstituted aryl, (Ci-C6)perfluoroalkyl, 2,2,2-trifluoroethyl, or substituted or unsubstituted heterocyclyl; and
- R c is selected from:
- aisOorl bisOor 1; m is 0, 1 or 2; n is 0, 1 or 2; pis 0, 1, 2 or 3; risOorl; s is 0 or 1; t is 2, 3, 4, 5 or 6;
- u, v and x are independently selected from: CH and N;
- w is selected from a bond, CH and N;
- y and z are independently selected from: CH and N, provided that at least one of y and z is N;
- Rl is independently selected from:
- R2 is independently selected from:
- R3 and R4 are independently selected from: H, C ⁇ -C6 ⁇ alkyl and C ⁇ -C6- perfluoroalkyl, or
- R3 and R4 are combined to form -(CH2)t- wherein one of the carbon atoms is optionally replaced by a moiety selected from O, S(O) m , -N(Rb)C(O)-, and -N(COR a )- ;
- R5 and R are independently selected from:
- said alkyl, cycloalkyl, aryl, heterocylyl, alkenyl, and alkynyl is optionally substituted with one or more substituents selected from R z , or R5 and R6 can be taken together with the nitrogen to which they are attached to form a monocyclic or bicyclic heterocycle with 5-7 members in each ring and optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said monocyclic or bicyclic heterocycle optionally substituted with Q and also optionally substituted with one or more substituents selected from R z ;
- R7 and R8 are independently selected from:
- R7 and R8 can be taken together with the nitrogen to which they are attached to form a monocyclic or bicyclic heterocycle with 5-7 members in each ring and optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said monocyclic or bicyclic heterocycle optionally substituted with one or more substituents selected from R z ;
- R is selected from:
- R a is substituted or unsubstituted (C ⁇ -C6)alkyl, substituted or unsubstituted (C2- C6)alkenyl, substituted or unsubstituted (C2-C6)alkynyl, substituted or unsubstituted (C3-C6)cycloalkyl, substituted or unsubstituted aryl, (C ⁇ -C6)perfluoroalkyl, 2,2,2- trifluoroethyl, or substituted or unsubstituted heterocyclyl; and
- R c is selected from:
- the present invention includes within its scope prodrugs of the compounds of formulae VI-IX above.
- prodrugs will be functional derivatives of the compounds of formulae VI-IX which are readily convertible in vivo into the required compound of formulae VI-IX.
- Conventional procedures for the selection and preparation of suitable prodrug derivatives are described, for example, in Design of Prodrugs, ed. H. Bundgaard, Elsevier, 1985.
- the compounds of the present invention may have asymmetric centers, chiral axes, and chiral planes (as described in: E.L. Eliel and S.H. Wilen, Stereochemistry of Carbon Compounds, John Wiley & Sons, New York, 1994, pages 1119-1190), and occur as racemates, racemic mixtures, and as individual diastereomers, with all possible isomers and mixtures thereof, including optical isomers, all such stereoisomers being included in the present invention.
- the compounds disclosed herein may exist as tautomers and both tautomeric forms are intended to be encompassed by the scope of the invention, even though only one tautomeric structure is depicted.
- any claim to compound A below is understood to include tautomeric structure B, and vice versa, as well as mixtures thereof.
- the two tautomeric forms of the benzimidazolonyl moiety are also within the scope of the instant ivention.
- any variable e.g. Rl, R2, Rz, etc.
- its definition on each occurrence is independent at every other occurrence.
- combinations of substituents and variables are permissible only if such combinations result in stable compounds.
- Lines drawn into the ring systems from substituents represent that the indicated bond may be attached to any of the substitutable ring atoms. If the ring system is poly cyclic, it is intended that the bond be attached to any of the suitable carbon atoms on the proximal ring only.
- substituents and substitution patterns on the compounds of the instant invention can be selected by one of ordinary skill in the art to provide compounds that are chemically stable and that can be readily synthesized by techniques known in the art, as well as those methods set forth below, from readily available starting materials. If a substituent is itself substituted with more than one group, it is understood that these multiple groups may be on the same carbon or on different carbons, so long as a stable structure results.
- the phrase "optionally substituted with one or more substituents” should be taken to be equivalent to the phrase “optionally substituted with at least one substituent” and in such cases the preferred embodiment will have from zero to three substituents.
- alkyl is intended to include both branched and straight-chain saturated aliphatic hydrocarbon groups having the specified number of carbon atoms.
- C ⁇ -C ⁇ o as in “C ⁇ -Cio alkyl” is defined to include groups having 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 carbons in a linear or branched arrange- ment.
- C ⁇ -C ⁇ o alkyl specifically includes methyl, ethyl, rc-propyl, j-propyl, n-butyl, t-butyl, z ' -butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, and so on.
- cycloalkyl means a monocyclic saturated aliphatic hydrocarbon group having the specified number of carbon atoms.
- cycloalkyl includes cyclopropyl, methyl-cyclopropyl, 2,2-dimethyl-cyclobutyl, 2-ethyl-cyclopentyl, cyclohexyl, and so on.
- Alkoxy represents either a cyclic or non-cyclic alkyl group of indicated number of carbon atoms attached through an oxygen bridge. “Alkoxy” therefore encompasses the definitions of alkyl and cycloalkyl above.
- alkenyl refers to a non-aromatic hydrocarbon radical, straight, branched or cyclic, containing from 2 to 10 carbon atoms and at least one carbon to carbon double bond. Preferably one carbon to carbon double bond is present, and up to four non-aromatic carbon-carbon double bonds may be present.
- C2-C6 alkenyl means an alkenyl radical having from 2 to 6 carbon atoms.
- Alkenyl groups include ethenyl, propenyl, butenyl, 2-methylbutenyl and cyclohexenyl. The straight, branched or cyclic portion of the alkenyl group may contain double bonds and may be substituted if a substituted alkenyl group is indicated.
- alkynyl refers to a hydrocarbon radical straight, branched or cyclic, containing from 2 to 10 carbon atoms and at least one carbon to carbon triple bond. Up to three carbon-carbon triple bonds may be present.
- C2-C6 alkynyl means an alkynyl radical having from 2 to 6 carbon atoms.
- Alkynyl groups include ethynyl, propynyl, butynyl, 3-methylbutynyl and so on.
- the straight, branched or cyclic portion of the alkynyl group may contain triple bonds and may be substituted if a substituted alkynyl group is indicated.
- substituents may be defined with a range of carbons that includes zero, such as (Co-C6)alkylene-aryl. If aryl is taken to be phenyl, this definition would include phenyl itself as well as -CH2PI1, -CH2CH2PI1, CH(CH3)CH2CH(CH3)Ph, and so on.
- aryl is intended to mean any stable monocyclic or bicyclic carbon ring of up to 7 atoms in each ring, wherein at least one ring is aromatic.
- aryl elements include phenyl, naphthyl, tetrahydro- naphthyl, indanyl and biphenyl.
- heteroaryl represents a stable monocyclic or bicyclic ring of up to 7 atoms in each ring, wherein at least one ring is aromatic and contains from 1 to 4 heteroatoms selected from the group consisting of O, N and S.
- Heteroaryl groups within the scope of this definition include but are not limited to: acridinyl, carbazolyl, cinnolinyl, quinoxalinyl, pyrrazolyl, indolyl, benzotriazolyl, furanyl, thienyl, benzothienyl, benzofuranyl, quinolinyl, isoquinolinyl, oxazolyl, isoxazolyl, indolyl, pyrazinyl, pyridazinyl, pyridinyl, pyrimidinyl, pyrrolyl, tetrahydroquinoline.
- heteroaryl is also understood to include the N-oxide derivative of any nitrogen-containing heteroaryl.
- heteroaryl substituent is bicyclic and one ring is non-aromatic or contains no heteroatoms, it is understood that attachment is via the aromatic ring or via the heteroatom containing ring, respectively.
- Such heteraoaryl moieties for substituent Q include but are not limited to: 2-benzimidazolyl, 2-quinolinyl, 3- quinolinyl, 4-quinolinyl, 1 -isoquinolinyl, 3-isoquinolinyl and 4-isoquinolinyl.
- heterocycle or “heterocyclyl” as used herein is intended to mean a 5- to 10-membered aromatic or nonaromatic heterocycle containing from 1 to 4 heteroatoms selected from the group consisting of O, N and S, and includes bicyclic groups.
- Heterocyclyl therefore includes the above mentioned heteroaryls, as well as dihydro and tetrathydro analogs thereof.
- heterocyclyl include, but are not limited to the following: benzoimidazolyl, benzoimidazolonyl, benzofuranyl, benzofurazanyl, benzopyrazolyl, benzotriazolyl, benzothiophenyl, benzoxazolyl, carbazolyl, carbolinyl, cinnolinyl, furanyl, imidazolyl, indolinyl, indolyl, indolazinyl, indazolyl, isobenzofuranyl, isoindolyl, isoquinolyl, isothiazolyl, isoxaz-olyl, naphthpyridinyl, oxadiazolyl, oxazolyl, oxazoline, isoxazoline, oxetanyl, pyranyl, pyrazinyl, pyrazolyl, pyridazinyl, pyridopyridiny
- heterocycle is selected from 2-azepinone, benzimidazolyl,
- 2-diazapinone imidazolyl, 2-imidazolidinone, indolyl, isoquinolinyl, morpholinyl, piperidyl, piperazinyl, pyridyl, pyrrolidinyl, 2-piperidinone, 2-pyrimidinone, 2- pyrollidinone, quinolinyl, tetrahydrofuryl, tetrahydroisoquinolinyl, and thienyl.
- halo or halogen as used herein is intended to include chloro, fluoro, bromo and iodo.
- substituted alkyl, substituted cycloalkyl, substituted aroyl, substituted aryl, substituted heteroaroyl, substituted heteroaryl, substituted arylsulfonyl, substituted heteroaryl- sulfonyl and substituted heterocycle include moieties containing from 1 to 3 substituents in addition to the point of attachment to the rest of the compound.
- substituents are selected from the group which includes but is not limited to F, Cl, Br, CF 3 , NH 2 , N(C -C 6 alkyl) 2 , NO 2 , CN, (C ⁇ -C 6 alkyl)O-,
- a (C ⁇ -C6)alkyl may be substituted with one, two or three substituents selected from OH, oxo, halogen, alkoxy, dialkylamino, or heterocyclyl, such as morpholinyl, piperidinyl, and so on.
- substituents selected from OH, oxo, halogen, alkoxy, dialkylamino, or heterocyclyl, such as morpholinyl, piperidinyl, and so on.
- Rl is oxo
- Rl is oxo
- cyclic moieties may optionally include a heteroatom(s).
- heteroatom-containing cyclic moieties include, but are not limited to: C 6 alkyl
- R7 and R are defined such that they can be taken together with the nitrogen to which they are attached to form a monocyclic or bicyclic heterocycle with 5-7 members in each ring and optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said heterocycle optionally substituted with one or more substituents selected from Rz.
- the heterocycles that can thus be formed include, but are not limited to the following, keeping in mind that the heterocycle is optionally substituted with one or more (and preferably one, two or three) substituents chosen from R z :
- y and z are N.
- Rl is selected from: halogen, -OH, -CN, -NO 2 , -CF 3 , -OCl-
- R2 is selected from C ⁇ -C6alkyl, -OH, -OCi-C ⁇ alkyl, -CF3, CN and halogen, optionally substituted with one substituent selected from R z
- R and R4 selected from H and
- R and R4 are H.
- R5 is selected from H and C ⁇ C alkyl. More preferably R is H.
- R7 and R are selected from H, C ⁇ C ⁇ alkyl and aryl, optionally substituted with one to two substituents selected from Rz. More preferably, R7 and R8 are selected from H or C1-C6 alkyl.
- R and R are selected from H, C ⁇ -C6 alkyl and aryl, optionally substituted with one to two substituents selected from Rz, or R5 and R6 together with the nitrogen to which they are attached form a monocyclic or bicyclic heterocycle, optionally substituted with one to two substituents selected from R z .
- R5 and R6 are selected from H or C ⁇ -C6 alkyl, or R5 and R6 together with the nitrogen to which they are attached form a monocyclic or bicyclic heterocycle, optionally substituted with one to two substituents selected from R z .
- Q is selected from:
- Rz is selected from C ⁇ -C6 alkyl and halogen.
- the moieties formed when Rl is oxo include the following structure, which are meant to be merely illustrative and not limiting:
- cyclic moieties may optionally include a heteroatom(s).
- heteroatom-containing cyclic moieties include, but are not limited to:
- R5 and R or R7 and R are defined such that they can be taken together with the nitrogen to which they are attached to form a monocyclic or bicyclic heterocycle with 5-7 members in each ring and optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said heterocycle optionally substituted with one or more substituents selected from R z .
- the heterocycles that can thus be formed include, but are not limited to the following, keeping in mind that the heterocycle is optionally substituted with one or more (and preferably one, two or three) substituents chosen from R z :
- R2 is selected from C ⁇ -C6alkyl, -OH, -OC ⁇ -C6alkyl, -CF3, CN and halogen, optionally substituted with one substituent selected from R z .
- R3 and R4 selected from H and -CH3. More prefered R3 and R4 are H.
- R7 and R8 are selected from H, C ⁇ -C6 alkyl and aryl, optionally substituted with one to two substituents selected from R z . More preferably, R7 and R8 are selected from H or C ⁇ -C6 alkyl.
- Q is selected from:
- Rz is selected from C ⁇ -C6 alkyl and halogen.
- cyclic moieties may optionally include a heteroatom(s).
- heteroatom-containing cyclic moieties include, but are not limited to: alkyl
- R5 and R6 or R7 and R8 are defined such that they can be taken together with the nitrogen to which they are attached to form a monocyclic or bicyclic heterocycle with 5-7 members in each ring and optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said heterocycle optionally substituted with one or more substituents selected from R z .
- the heterocycles that can thus be formed include, but are not limited to the following, keeping in mind that the heterocycle is optionally substituted with one or more (and preferably one, two or three) substituents chosen from R z :
- y and z are N.
- R2 is selected from C ⁇ -C6alkyl, -OH, -OCi-C ⁇ alkyl, -CF3, CN and halogen, optionally substituted with one substituent selected from R z
- R3 and R4 selected from H and -
- R3 and R4 are H.
- R7 and R8 are selected from H, C ⁇ -C6 alkyl and aryl, optionally substituted with one to two substituents selected from Rz. More preferably, R7 and R are selected from H or C ⁇ -C ⁇ alkyl.
- Q is selected from:
- R z is selected from C ⁇ -C6 alkyl and halogen.
- the free form may be regenerated by treating the salt with a suitable dilute aqueous base solution such as dilute aqueous NaOH, potassium carbonate, ammonia and sodium bicarbonate.
- a suitable dilute aqueous base solution such as dilute aqueous NaOH, potassium carbonate, ammonia and sodium bicarbonate.
- the free forms may differ from their respective salt forms somewhat in certain physical properties, such as solubility in polar solvents, but the acid and base salts are otherwise pharmaceutically equivalent to their respective free forms for purposes of the invention.
- the pharmaceutically acceptable salts of the instant compounds can be synthesized from the compounds of this invention which contain a basic or acidic moiety by conventional chemical methods.
- the salts of the basic compounds are prepared either by ion exchange chromatography or by reacting the free base with stoichiometric amounts or with an excess of the desired salt-forming inorganic or organic acid in a suitable solvent or various combinations of solvents.
- the salts of the acidic compounds are formed by reactions with the appropriate inorganic or organic base.
- pharmaceutically acceptable salts of the compounds of this invention include the conventional non-toxic salts of the compounds of this invention as formed by reacting a basic instant compound with an inorganic or organic acid.
- non-toxic salts include those derived from inorganic acids such as hydrochloric, hydrobromic, sulfuric, sulfamic, phosphoric, nitric and the like, as well as salts prepared from organic acids such as acetic, propionic, succinic, glycolic, stearic, lactic, malic, tartaric, citric, ascorbic, pamoic, maleic, hydroxymaleic, phenylacetic, glutamic, benzoic, salicylic, sulfanilic, 2-acetoxy- benzoic, fumaric, toluenesulfonic, methanesulfonic, ethane disulfonic, oxalic, isethionic, trifluoroacetic and the like.
- suitable organic acids such as hydrochloric, hydrobromic, sulfuric, sulfamic, phosphoric, nitric and the like
- organic acids such as acetic, propionic, succinic, glycolic, stea
- salts derived from inorganic bases include aluminum, ammonium, calcium, copper, ferric, ferrous, lithium, magnesium, manganic salts, manganous, potassium, sodium, zinc and the like. Particularly preferred are the ammonium, calcium, magnesium, potassium and sodium salts.
- Salts derived from pharmaceutically acceptable organic non-toxic bases include salts of primary, secondary and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines and basic ion exchange resins, such as arginine, betaine caffeine, choline, N,N'-chbenzylethylenediamine, diethylamin, 2-diethylaminoethanol, 2-dimethylaminoethanol, ethanolamine, ethylenediamine, N-ethylmorpholine, N-ethylpiperidine, glucamine, glucosamine, histidine, hydrabamine, isopropylamine, lysine, methylglucamine, morpholine, piperazine, piperidine, polyamine resins, procaine, purines, theobromine, triethylamine, trimethylamine tripropylamine, tromethamine and the like.
- the compounds of the present invention are potentially internal salts or zwitterions, since under physiological conditions a deprotonated acidic moiety in the compound, such as a carboxyl group, may be anionic, and this electronic charge might then be balanced off internally against the cationic charge of a protonated or alkylated basic moiety, such as a quaternary nitrogen atom.
- Specific compounds which are inhibitors of one or two of the Akt/PKB isoforms and are therefore useful in the present invention include:
- the compounds used in the present method may have asymmetric centers and occur as racemates, racemic mixtures, and as individual diastereomers, with all possible isomers, including optical isomers, being included in the present invention.
- named amino acids are understood to have the natural "L" stereoconfiguration
- the pharmaceutically acceptable salts of the compounds of this invention can be synthesized from the compounds of this invention which contain a basic moiety by conventional chemical methods. Generally, the salts are prepared by reacting the free base with stoichiometric amounts or with an excess of the desired salt-forming inorganic or organic acid in a suitable solvent or various combinations of solvents.
- PS-DCC polystyrene-dicyclohexyl carbodiimide
- PS-DIEA polystyrene diisopropylethylamine
- Reactions used to generate the compounds which are inhibitors of Akt activity and are therefore useful in the methods of treatment of this invention are shown in the Reaction Schemes 1-10, in addition to other standard manipulations such as ester hydrolysis, cleavage of protecting groups, etc., as may be known in the literature or exemplified in the experimental procedures.
- Substituents R and R a as shown in the Reaction Schemes, represent the substituents Rl and R2; however their point of attachment to the ring is illustrative only and is not meant to be limiting.
- Reaction Scheme 2 illustrates preparation of compounds useful in the methods of the instant invention having a cycloalkyl substituent at the 7-position. While a cyclobutyl group is illustrated, the sequence of reactions is generally applicable to incorporation of a variety of unsubstituted or substituted cycloalkyl moieties.
- 3,6-dichloropyridazine is alkylated via silver catalyzed oxidative decarboxylation with cyclobutyl carboxylic acid to provide the cyclobutyl dichloropyridazine y, which then undergoes the reactions described above to provide the instant compound yi.
- Reaction Scheme 3 illustrates the same reaction sequence used to prepare compounds of the Formula I
- Reaction Scheme 4 illustrates an alternative preparation of the instant compounds (Tetrahedron Letters 41:781-784 (2000)).
- Reaction Scheme 5 illustrates a synthetic method of preparing the compounds of the Formula IV hereinabove.
- Reaction Scheme 6 illustrates a synthetic method of preparing the compounds of the Formula III hereinabove.
- Reaction Scheme 7-8 illustrates a synthetic method of preparing the compounds of the Formula VII hereinabove.
- Reaction Schem 9-10 illustrates a synthetic method of preparing the compounds of the Formula IX hereinabove.
- Step 2 6-Chloro-7-cvclobutyl-3-phenyl- 2.4-triazolor4,3-bl ⁇ yridazine
- Step 3 NM7-Cyclobutyl-3-phenyl-[l,2,4]triazolo[4,3-b]pyridazm-6-yl)-
- Step 1 1 -Chloro-4-hy drazinophthalazine hydrochloride To a stirred solution of hydrazine hydrate (40ml) in ethanol (120M1) at
- Step 3 2,2,N,N-tetramethyl-N-(3-phenyl-[l,2,4]triazolo[3,4- ⁇ ]phthalazin-6- vD-propane- 1 ,3-diamine
- Step 1 4-Phenyl-l,2-dihydropyridazine-3,6-dione Phenylmaleic anhydride (30 g, 0.17 mol), sodium acetate trihydrate
- Step 3 6-Chloro-3,7-diphenyl-l,2,3-trizolor4,3-b1pyridazine
- 3,6-Dichloro-4-phenylpyridazine (2.9 g, 13 mmol), benzoic hydrazide (1.9 g, 21 mmol) and triethylammonium chloride (2.0 g, 14 mmol) were heated together at reflux in xylene (150 ml) for three days. More benzoic hydrazide (0.88 g, 6.5 mmol) was added and the mixture was heated as before for another day.
- Step 3 Preparation of ⁇ , -dimethyl-4-iodo-N-formamido-benzyl amine
- Step 5 Preparation of l-(2-formamidoprop-2-ylphenyl -2-phenylacetylene A mixture of 11.83 g of the iodophenyl compound described in Step 3,
- Step 6 Preparation of 4-(2-formamidoprop-2-y0-benzil l-(2-formamidoprop-2-ylphenyl)-2-phenylacetylene from Step 5 (4.81 g) was dissolved in 30 ml of dried DMSO. N-Bromosuccinamide (NBS) (5.65 g) was added and the reaction stirred at room temperature for 96 hours. At this time 500 mg of NBS was added and the reaction stirred an additional 24 hours. The reaction mixture was then poured over water and the aqueous mixture extracted with benzene. The combined organic phases were washed with water and dried over MgSO 4 . The organic slurry was then filtered and concentrated in vacuo to provide the title compound
- Step 3 Preparation of 2,3-bis(4-aminophenyl)-quinoxaline
- a mixture of 1.0 g (4.17 mmole) of 4,4'-diaminobenzil and 0.45 g of o-phenylenediamine in 250 ml glacial acetic acid was heated at 50°C for 15 minutes, then stirred for 16 hours at room temperature. The mixture was then heated to 80°C and allowed to cool slowly. The solvent was removed under vacuum and the residue was redissolved in ethanol and that was removed under vacuum. The solid residue was recrystalized from boiling acetone, and the solid collected.
- Step 1 l-(4- ⁇ [4-(2-Oxo-2,3-dihydro-lH-benzimidazol-l-yl)pipepridin-l- yllmethyl ⁇ phenyl)-2-phenylethane-l,2-dione (12-3)
- bromomethyl benzil (12-2) (Toronto Research chemicals, 500 mg, 1.65 mmol), 4-(2-keto-l-benzimidazolinyl)piperidine (Aldrich, 358 mg, 1.65 mol), PS-DIEA (887 mg, 3.3 mmol, 3.72 mml/g) and dry THF (6 mL, 0.3 M).
- the vial was placed on a GlasCol rotator and allowed to rotate for 2 hours. After this time, the contents of the vial were filtered through a 10 mL BioRad tube, washed with THF and concentrated in vaccuo.
- Step 2 l- ⁇ l-[4-(7-Phenyl-lH-imidazo[4,5-g]quinoxalin-6-yl)benzyl]piperidin-
- Step 1 l-(4- ⁇ [4-(2-Oxo-2,3-dihydro-lH-benzimidazol-l-yl)pipepridin ⁇ l- yllmethyl ⁇ phenyl)-2-phenylethane-L2-dione (13-3)
- Step 2 l- ⁇ l-[4-(6-Hydroxy-5-isobutyl-3-phenylpyrazin-2-yl)benzyl]piperidin-
- Step 1 l-(4- ⁇ [4-(2-Oxo-2,3-dihydro-lH-benzimidazol-l-yl)pipepridin-l- ynmethyl ⁇ phenyl)-2-phenylethane-l,2-dione (15-3)
- bromomethyl benzil (15-1) (Toronto Research Chemicals, 500 mg, 1.65 mmol), 4-(2-keto-l-benzimidazolinyl)piperidine (15-2) (Aldrich, 358 mg, 1.65 mol), PS-DIEA (887 mg, 3.3 mmol, 3.72 mml/g) and dry THF (6 mL, 0.3 M).
- the vial was placed on a GlasCol rotator and allowed to rotate for 2 hours. After this time, the contents of the vial were filtered through a 10 mL BioRad tube, washed with THF and concentrated in vaccuo.
- Step 2 l- ⁇ l-[4-(3-Phenylquinoxalin-2-yl)benzyl]piperidin-4-yl ⁇ -l,3-dihydiO- 2H-benzimidazol-2-one (15-4)
- l-(4- ⁇ [4-(2-oxo-2,3-dihydro-lH- benzimidazol-l-yl)pipepridin-l-yl]methyl ⁇ phenyl)-2-phenylethane-l,2-dione (15-3) (88 mg, 0.16 mmol), 1,2-diaminobenzene (17 mg, 0.16 mol) and dissolved in EtOH (3 mL).
- the vial was placed in a J-KEM heater/shaker block and warmed to 90 degrees for 9 hours. After this time, the vials were cooled and concentrated in vaccuo. The crude material was then purified on an Agilent 1100 series Mass Guided HPLC purification system to afford 80 mg of the TFA salt of (15-4) as a brown solid.
- Analytical LCMS single peak (214 nm) at 2.625 min (CI ⁇ CN/Ii j O/ ⁇ oTFA, 4 min gradient).
- the vial was placed on a GlasCol rotator and allowed to rotate overnight. In the morning, MP-carbonate (90 mg, 0.32 mmol, 3.38 mmol/g) was added, and the vial allowed to rotate for another 3 hours. After this time, the vial's contents were filtered through a BioRad tube, washed with DCM and concentrated. The crude material was then purified on an Agilent 1100 series Mass Guided HPLC purification system to afford the bis TFA salt of (17-1) as a brown solid. Analytical LCMS: single peak (214 nm) at 2.090 min 4 min gradient).
- Step 1 N-benzyloxycarbonyl-2-py ⁇ olidine-N-methoxy-N-methylcarboxamide
- N-benzyloxycarbonylproline 25g, 0.116moles
- oxalyl chloride 10.12mL
- 310 mL of CH 2 Cl 2 and DMF 0.8 mL
- the solvent was evaporated and the residue was dissolved in 400mL of CH-C1 2 and the solution cooled to 0°C.
- N,O-dimethylhydroxylamine hydrochloride 11.32 g, 0.116 moles
- Et 3 N 35.8 mL
- the reaction mixture was further diluted with 300 mL of CH_C1 2 and poured into a bicarbonate solution.
- the aqueous layer was extracted with CH-C1 2 and the combined organic layers were dried over Na-.SO 4 and filtered.
- the organic solvents were evaporated and the residue suspended in a EtOAc/CH,Cl 2 /MeOH mixture.
- the mixture was filtered and the filtrate concentrated under vacuum and redissolved/filtered.
- the resulting organic soluble residue was purified on a silica gel column (70% EtOAc in hexane) to provide compound (19-3).
- Step 4 l-(4-Chloro-3-methoxyphenyl)-2-pyridin-4-yl-ethane-1.2-diol (19-81
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/510,068 US20060142178A1 (en) | 2002-04-08 | 2003-04-04 | Method of treating cancer |
EP03746147A EP1496981A2 (en) | 2002-04-08 | 2003-04-04 | Method of treating cancer |
AU2003226301A AU2003226301A1 (en) | 2002-04-08 | 2003-04-04 | Method of treating cancer |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37082702P | 2002-04-08 | 2002-04-08 | |
US60/370,827 | 2002-04-08 | ||
US41720202P | 2002-10-09 | 2002-10-09 | |
US60/417,202 | 2002-10-09 |
Publications (2)
Publication Number | Publication Date |
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WO2003084473A2 true WO2003084473A2 (en) | 2003-10-16 |
WO2003084473A3 WO2003084473A3 (en) | 2004-02-12 |
Family
ID=28794391
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PCT/US2003/010632 WO2003084473A2 (en) | 2002-04-08 | 2003-04-04 | Method of treating cancer |
Country Status (4)
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US (1) | US20060142178A1 (en) |
EP (1) | EP1496981A2 (en) |
AU (1) | AU2003226301A1 (en) |
WO (1) | WO2003084473A2 (en) |
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US20060142178A1 (en) | 2006-06-29 |
WO2003084473A3 (en) | 2004-02-12 |
AU2003226301A8 (en) | 2003-10-20 |
EP1496981A2 (en) | 2005-01-19 |
AU2003226301A1 (en) | 2003-10-20 |
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