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  • A61K31/535—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
  • A61K31/5375—1,4-Oxazines, e.g. morpholine
  • A61K31/5377—1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
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  • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
  • C07D487/04—Ortho-condensed systems
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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  • 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
  • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
  • A61K31/517—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine
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  • 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
  • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
  • A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
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  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
  • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings

Definitions

• PI3Ks can be divided into three distinct classes based upon differences in both structure, and substrate preference. While members of the Class II family of PI3Ks have been implicated in the regulation of tumor growth (Brown and Shepard, 2001; Traer et al., 2006), the bulk of research has focused on the Class I enzymes and their role in cancer (Vivanco And Sawyers, 2002; Workman, 2004, Chen et al., 2005; Hennessey et al., 2005; Stauffer et al., 2005; Stephens et al., 2005; Cully et al., 2006).
• Akt phosphorylates and regulates multiple regulatory kinases of pathways that directly influence cell cycle progression and cell survival.
• Akt impacts gene transcription on several levels.
• the Akt-mediated phosphorylation of the MDM2 E3 ubiquitin ligase on Ser 166 and Ser 186 facilitates the nuclear import of MDM2 and the formation and activation of the ubiquitin ligase complex.
• Nuclear MDM2 targets the p53 tumor suppressor for degradation, a process that can be blocked by LY294002 (Yap et al., 2000; Ogarawa et al., 2002). Downregulation of p53 by MDM2 negatively impacts the transcription of p53-regulated pro-apoptotic genes (e.g.
• GSK3 activity is elevated in quiescent cells, where it phosphorylates cyclin D 1 on Ser 286 , targeting the protein for ubiquitination and degradation (Diehl et al., 1998) and blocking entry into S-phase.
• Akt inhibits GSK3 activity through phosphorylation on Ser 9 (Cross et al., 1995). This results in the elevation of Cyclin D 1 levels which promotes cell cycle progression.
• the invention encompasses the compound of Formula (I), wherein R 2 is pyridine, pyridazine, pyrimidine, pyrazine, pyrole, oxazole, thiazole, furan or thiophene, optionally substituted with 1, 2 or 3 R 6 groups; more preferably pyridine, pyridazine, pyrimidine, pyrazine, pyrole, oxazole or thiazole, optionally substituted with 1, 2 or 3 R 6 groups.
• the invention encompasses a compound having the formula:
• alkoxyakyl denotes an alkoxy group as defined herein attached via oxygen linkage to an alkyl group which is then attached to the main structure at any carbon from alkyl group that results in the creation of a stable structure the rest of the molecule.
• Representative examples of those groups are —CH 2 OCH 3 , —CH 2 OC 2 H 5 .
• arylalkyl refers to an aryl group as defined herein directly bonded to an alkyl group as defined herein which is then attached to the main structure at any carbon from alkyl group that results in the creation of a stable structure the rest of the molecule. e.g., —CH 2 C 6 H 5 , —C 2 H 5 C 6 H 5 .
• heterocyclic ring refers to a stable 3- to 15 membered ring radical which consists of carbon atoms and from one to five heteroatoms selected from the group consisting of nitrogen, phosphorus, oxygen and sulfur.
• the heterocyclic ring radical may be a monocyclic, bicyclic or tricyclic ring system, which may include fused, bridged or spiro ring systems, and the nitrogen, phosphorus, carbon, oxygen or sulfur atoms in the heterocyclic ring radical may be optionally oxidized to various oxidation states.
• the nitrogen atom may be optionally quaternized; and the ring radical may be partially or fully saturated (i.e., heteroaromatic or heteroaryl aromatic).
• heteroaryl refers to heterocyclic ring radical as defined herein which are aromatic.
• the heteroaryl ring radical may be attached to the main structure at any heteroatom or carbon atom that results in the creation of a stable structure.
• the heterocyclic ring radical may be attached to the main structure at any heteroatom or carbon atom that results in the creation of a stable structure.
• heterocyclyl refers to a heterocylic ring radical as defined herein.
• the heterocylyl ring radical may be attached to the main structure at any heteroatom or carbon atom that results in the creation of a stable structure.
• heterocyclylalkyl refers to a heterocylic ring radical as defined herein directly bonded to alkyl group.
• the heterocyclylalkyl radical may be attached to the main structure at carbon atom in the alkyl group that results in the creation of a stable structure.
• Pharmaceutically acceptable salts include those obtained by reacting the main compound, functioning as a base, with an inorganic or organic acid to form a salt, for example, salts of hydrochloric acid, sulfuric acid, phosphoric acid, methane sulfonic acid, camphor sulfonic acid, oxalic acid, maleic acid, succinic acid and citric acid.
• Pharmaceutically acceptable salts also include those in which the main compound functions as an acid and is reacted with an appropriate base to form, e.g., sodium, potassium, calcium, magnesium, ammonium, and chorine salts.
• a solvate for the purpose of this invention is a complex of a solvent and a compound of the invention in the solid state.
• Exemplary solvates would include, but are not limited to, complexes of a compound of the invention with ethanol or methanol. Hydrates are a specific form of solvate wherein the solvent is water.
• the pharmaceutical compositions of this invention may also be in the form of oil-in-water emulsions.
• the oily phase may be a vegetable oil such as liquid paraffin or a mixture of vegetable oils.
• Suitable emulsifying agents may be (1) naturally occurring gums such as gum acacia and gum tragacanth, (2) naturally occurring phosphatides such as soy bean and lecithin, (3) esters or partial esters derived form fatty acids and hexitol anhydrides, for example, sorbitan monooleate, (4) condensation products of said partial esters with ethylene oxide, for example, polyoxyethylene sorbitan monooleate.
• the emulsions may also contain sweetening and flavoring agents.
• compositions of this invention will typically contain from about 0.5% to about 25% by weight of the active ingredient in solution. Preservatives and buffers may also be used advantageously. In order to minimize or eliminate irritation at the site of injection, such compositions may contain a non-ionic surfactant having a hydrophile-lipophile balance (HLB) preferably of from about 12 to about 17. The quantity of surfactant in such formulation preferably ranges from about 5% to about 15% by weight.
• the surfactant can be a single component having the above HLB or can be a mixture of two or more components having the desired HLB.
• the sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally acceptable diluent or solvent.
• Diluents and solvents that may be employed are, for example, water, Ringer's solution, isotonic sodium chloride solutions and isotonic glucose solutions.
• sterile fixed oils are conventionally employed as solvents or suspending media.
• any bland, fixed oil may be employed including synthetic mono- or diglycerides.
• fatty acids such as oleic acid can be used in the preparation of injectables.
• compositions of the invention can also contain other conventional pharmaceutically acceptable compounding ingredients, generally referred to as carriers or diluents, as necessary or desired.
• Conventional procedures for preparing such compositions in appropriate dosage forms can be utilized. Such ingredients and procedures include those described in the following references, each of which is incorporated herein by reference: Powell, M. F. et al, “Compendium of Excipients for Parenteral Formulations” PDA Journal of Pharmaceutical Science & Technology 1998, 52(5), 238-311; Strickley, R. G “Parenteral Formulations of Small Molecule Therapeutics Marketed in the United States (1999)-Part-1 ” PDA Journal of Pharmaceutical Science & Technology 1999, 53(6), 324-349; and Nema, S. et al, “Excipients and Their Use in Injectable Products” PDA Journal of Pharmaceutical Science & Technology 1997, 51(4), 166-171.
• acidifying agents examples include but are not limited to acetic acid, citric acid, fumaric acid, hydrochloric acid, nitric acid
• alkalinizing agents examples include but are not limited to ammonia solution, ammonium carbonate, diethanolamine, monoethanolamine, potassium hydroxide, sodium borate, sodium carbonate, sodium hydroxide, triethanolamine, trolamine
• adsorbents examples include but are not limited to powdered cellulose and activated charcoal
• aerosol propellants examples include but are not limited to carbon dioxide, CCl 2 F 2 , F 2 ClC—CClF 2 and CClF 3
• air displacement agents examples include but are not limited to nitrogen and argon
• antifungal preservatives examples include but are not limited to benzoic acid, butylparaben, ethylparaben, methylparaben, propylparaben, sodium benzoate
• antimicrobial preservatives examples include but are not limited to benzoic acid, butylpara
• Sterile IV Solution A 5 mg/mL solution of the desired compound of this invention can be made using sterile, injectable water, and the pH is adjusted if necessary. The solution is diluted for administration to 1-2 mg/mL with sterile 5% dextrose and is administered as an IV infusion over about 60 minutes.
• Lyophilized powder for IV administration A sterile preparation can be prepared with (i) 100-1000 mg of the desired compound of this invention as a lypholized powder, (ii) 32-327 mg/mL sodium citrate, and (iii) 300-3000 mg Dextran 40.
• aqueous and non-aqueous coatings may be applied to increase palatability, improve elegance and stability or delay absorption.
• Immediate Release Tablets/Capsules These are solid oral dosage forms made by conventional and novel processes. These units are taken orally without water for immediate dissolution and delivery of the medication.
• the active ingredient is mixed in a liquid containing ingredient such as sugar, gelatin, pectin and sweeteners. These liquids are solidified into solid tablets or caplets by freeze drying and solid state extraction techniques.
• the drug compounds may be compressed with viscoelastic and thermoelastic sugars and polymers or effervescent components to produce porous matrices intended for immediate release, without the need of water.
• cancers of the respiratory tract include, but are not limited to small-cell and non-small-cell lung carcinoma, as well as bronchial adenoma and pleuropulmonary blastoma.
• Leukemias include, but are not limited to acute myeloid leukemia, acute lymphoblastic leukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia, and hairy cell leukemia.
• Inappropriate and ectopic expression of angiogenesis can be deleterious to an organism.
• a number of pathological conditions are associated with the growth of extraneous blood vessels. These include, e.g., diabetic retinopathy, ischemic retinal-vein occlusion, and retinopathy of prematurity (Aiello et al. New Engl. J. Med. 1994, 331, 1480; Peer et al. Lab. Invest. 1995, 72, 638), age-related macular degeneration (AMD; see, Lopez et al. Invest. Opththalmol. Vis. Sci.
• neovascular glaucoma neovascular glaucoma, psoriasis, retrolental fibroplasias, angiofibroma, inflammation, rheumatoid arthritis (RA), restenosis, in-stent restenosis, vascular graft restenosis, etc.
• RA rheumatoid arthritis
• restenosis in-stent restenosis
• vascular graft restenosis etc.
• the increased blood supply associated with cancerous and neoplastic tissue encourages growth, leading to rapid tumor enlargement and metastasis.
• the growth of new blood and lymph vessels in a tumor provides an escape route for renegade cells, encouraging metastasis and the consequence spread of the cancer.
• the average daily dosage for administration by injection will preferably be from 0.01 to 200 mg/kg of total body weight.
• the average daily rectal dosage regimen will preferably be from 0.01 to 200 mg/kg of total body weight.
• the average daily vaginal dosage regimen will preferably be from 0.01 to 200 mg/kg of total body weight.
• the average daily topical dosage regimen will preferably be from 0.1 to 200 mg administered between one to four times daily.
• the transdermal concentration will preferably be that required to maintain a daily dose of from 0.01 to 200 mg/kg.
• the average daily inhalation dosage regimen will preferably be from 0.01 to 100 mg/kg of total body weight.
• the compounds of this invention can be administered as the sole pharmaceutical agent or in combination with one or more other pharmaceutical agents where the combination causes no unacceptable adverse effects.
• the compounds of this invention can be combined with known anti-hyper-proliferative, antiinflammatory, analgesic, immunoregulatory, diuretic, antiarrhytmic, anti-hypercholsterolemia, anti-dyslipidemia, anti-diabetic or antiviral agents, and the like, as well as with admixtures and combinations thereof.
• the eluents were A: 2% acetonitrile in water with 0.02% TFA, and B: 2% water in acetonirile with 0.02% TFA. Gradient elution from 10% B to 90% B over 3.0 minutes at a flow rate of 1.0 mL/min was used with an initial hold of 1.0 minutes and a final hold at 95% B of 1.0 minutes. Total run time was 7.0 minutes.
• Alkylation of the phenol in formula (X) can be achieved using a base such as cesium carbonate, sodium hydride, or potassium t-butoxide in a polar aprotic solvent such as DMF or DMSO with introduction of a side chain bearing an appropriate leaving group such as a halide, or a sulfonate group.
• amides of formula (I) can be formed using activated esters such as acid chlorides and anhydrides or alternatively formed using carboxylic acids and appropriate coupling agents such as PYBOP, DCC, or EDCI in polar aprotic solvents.
• the mixture was diluted in THF (20 mL) and treated with a solution of sodium hydroxide (2 N, 5 mL) and stirred overnight.
• the reaction mixture was concentrated under reduced pressure and then diluted with water and EtOAc.
• the pH of the aqueous layer was adjusted to 5, and the organic layer was separated, dried (MgSO 4 ) and concentrated under reduced pressure.
• the solid (2 g, 8.15 mmol) was then dissolved in THF (10 mL) and treated with a borane solution (1 M in THF, 16 mL, 16.4 mmol) and the mixture stirred at rt for 12 h.
• the reaction mixture was then diluted with methanol (100 mL) and stirred at rt overnight.
• Morpholin-2-ylmethanol trifluoroacetate (0.7 g, 3.03 mmol) in DCM was treated with triethylamine (1.67 mL, 12.1 mmol) and tert-butyldimethylsilyl chloride (0.91 g, 6.06 mmol). The mixture was stirred at rt for 2 h and then filtered. The filtrate was then concentrated under reduced pressure and the residue was suspended in a dilute solution of sodium hydroxide (10%, 5 mL), and the mixture was stirred for 30 min. The mixture was then extracted with DCM and concentrated under reduced pressure to a foam.
• 3-Morpholin-4-ylpropane-1,2-diol (2.1 g, 9.07 mmol) was dissolved in DCM (15 mL) and cooled to 0° C. The cooled solution was treated with thionyl chloride (1.81 mL, 24.8 mmol) and then heated at the reflux temperature for 1 h.
• Step 1 Preparation of 4-formyl-2-methoxy-3-nitrophenyl acetate
• Step 8 Preparation of 5-amino-7-methoxy-2,3-dihydroimidazo[1,2-c]quinazolin-8-ol bis(trifluoroacetate)
• Step 1 Preparation of N-(8- ⁇ 3-[2-( ⁇ [tert-butyl(dimethyl)silyl]oxy ⁇ methyl)morpholin-4-yl]propoxy ⁇ -7-methoxy-2,3-dihydroimidazo[1,2-c]quinazolin-5-yl)nicotinamide
• Step 1 Preparation of N-[8-(benzyloxy)-7-methoxy-2,3-dihydroimidazo[1,2-c]quinazolin-5-yl]nicotinamide 1-oxide
• frugiperda 9 insect cells was obtained from ALEXIS BIOCHEMICALS (#201-055-0010; San Diego, Calif.).
• [ ⁇ 33 P]ATP and unlabeled ATP were purchased from AMERSHAM PHARMACIA B IOTECH (Buckinghamshire, UK) and R OCHE D IAGNOSTICS (Mannheim, Germany), respectively.
• Scintillation cocktails and MicroScint PSTM were purchased from PACKARD (Meriden, Conn.).
• MaxisorpTM plates were purchased from N ALGE N UNC I NTERNATIONAL K.K. (Tokyo, Japan). All other chemicals not further specified were from W AKO P URE C HEMICALS (Osaka, Japan).
• the MaxisorpTM plates were coated with 50 ⁇ L/well of a solution containing 50 mg/ml PtdIns and 50 mg/ml PtdSer dissolved in chloroform:ethanol (3:7). The plates were subsequently air-dried by incubation for at least 2 hours in a fume hood. The reaction was set up by mixing 25 mL/well of assay buffer 2 ⁇ (100 mM MOPSO/NaOH, 0.2 M NaCl, pH 7.0, 8 mM MgCl 2 , 2 mg/mL BSA (fatty acid-free)), and 7.5 ng/well PI3K ⁇ in the lipid pre-coated plate.
• assay buffer 2 ⁇ 100 mM MOPSO/NaOH, 0.2 M NaCl, pH 7.0, 8 mM MgCl 2 , 2 mg/mL BSA (fatty acid-free)
• Each experimental group consisted of 10 nude rats. Compounds were dissolved in a compatible vehicle for both intravenous and oral administration. For intravenous administration of compound, rats were warmed under a heating lamp for 5 minutes, then placed in a restraining device, and injected intravenously via the tail vein using a dosing volume ranging from 2 mL/kg to 5 mL/kg with a sterile 25 gauge needle. Oral dosing utilizes sterile disposable feeding needles (18 gauge/2 inch) from Popper and Sons, New Hyde Park, N.Y. Tumor growth was measured with electronic calipers 2-3 times a week and tumor weight (mg) calculated according to the following formula: [length (mm) ⁇ width (mm)2]/2.

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