EP2173354A1 - Dérivés des quinoxalines utilisés comme inhibiteurs des pi3-kinases - Google Patents

Dérivés des quinoxalines utilisés comme inhibiteurs des pi3-kinases

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Publication number
EP2173354A1
EP2173354A1 EP08797323A EP08797323A EP2173354A1 EP 2173354 A1 EP2173354 A1 EP 2173354A1 EP 08797323 A EP08797323 A EP 08797323A EP 08797323 A EP08797323 A EP 08797323A EP 2173354 A1 EP2173354 A1 EP 2173354A1
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Prior art keywords
substituted
amino
heteroaryl
6alkyl
cancer
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German (de)
English (en)
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EP2173354A4 (fr
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Steven David Knight
Cynthia A. Parish
Lance H. Ridgers
Martha A. Sarpong
Amita M. Chaudhari
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GlaxoSmithKline LLC
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GlaxoSmithKline LLC
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Definitions

  • PB kinases phosphoinositide 3 ' OH kinase family
  • the present invention relates to the use of quinoxalines in the treatment of one or more disease states selected from: autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, cancer, sperm motility, transplantation rejection, graft rejection and lung injuries.
  • PB kinases e.g. PBKalpha
  • PBKalpha membrane phospholipid pools
  • PBKalpha dual-specificity kinase enzymes, meaning they display both: lipid kinase (phosphorylation of phosphoinositides) as well as protein kinase activity, shown to be capable of phosphorylation of protein as substrate, including auto-phosphorylation as intramolecular regulatory mechanism.
  • phospholipids signaling are activated in response to a variety of extra-cellular signals such as growth factors, mitogens, integrins (cell-cell interactions) hormones, cytokines, viruses and neurotransmitters such as described in Scheme I hereinafter and also by intracellular regulation by other signaling molecules (cross-talk, where the original signal can activate some parallel pathways that in a second step transmit signals to PBKs by intra-cellular signaling events), such as small GTPases, kinases or phosphatases for example. Intracellular regulation can also occur as a result of aberrant expression or lack of expression of cellular oncogenes or tumor suppressors.
  • extra-cellular signals such as growth factors, mitogens, integrins (cell-cell interactions) hormones, cytokines, viruses and neurotransmitters such as described in Scheme I hereinafter and also by intracellular regulation by other signaling molecules (cross-talk, where the original signal can activate some parallel pathways that in a second step transmit signals to PBKs by intra-cellular signaling events
  • the inositol phospholipid (phosphoinositides) intracellular signaling pathways begin with activation of signaling molecules (extra cellular ligands, stimuli, receptor dimerization, transactivation by heterologous receptor (e.g. receptor tyrosine kinase) and the recruitment and activation of PBK including the involvement of G-protein linked transmembrane receptor integrated into the plasma membrane.
  • PBK converts the membrane phospholipid PI(4,5)P 2 into PI(3,4,5)P 3 that functions as a second messenger.
  • PI and PI(4)P are also substrates of PBK and can be phosphorylated and converted into PBP and PI(3,4)P 2 , respectively.
  • PBK enzymatic activity results either directly or indirectly in the generation of two 3 ' -phosphoinositide subtypes that function as 2 nd messengers in intra-cellular signal transduction pathways (Trends Biochem. Sci. 22(7) p.267-72 (1997) by Vanhaesebroeck et al: Chem. Rev. 101(8) p.2365-80 (2001) by Leslie et al (2001); Annu. Rev. Cell.Dev. Biol. 17p, 615-75 (2001) by Katso et al. and Cell. MoI. Life Sci.
  • PBK isoforms categorized by their catalytic subunits, their regulation by corresponding regulatory subunits, expression patterns and signaling-specific functions (pl lO ⁇ , ⁇ , ⁇ and ⁇ ) perform this enzymatic reaction (Exp. Cell. Res. 25 (1) p. 239-54 (1999) by Vanhaesebroeck and Katso et al., 2001, above).
  • the closely related isoforms pi 10a and ⁇ are ubiquitously expressed, while ⁇ and ⁇ are more specifically expressed in the haematopoietic cell system, smooth muscle cells, myocytes and endothelial cells (Trends Biochem. Sci. 22(7) p.267-72 (1997) by Vanhaesebroeck et al.). Their expression might also be regulated in an inducible manner depending on the cellular, tissue type and stimuli as well as disease context. Inducibility of protein expression includes synthesis of protein as well as protein stabilization that is in part regulated by association with regulatory subunits.
  • class I PBKs can phosphorylate phosphatidylinositol (PI), phosphatidylinositol-4-phosphate (PI4P), and phosphatidylinositol-4,5-bisphosphate (PI(4,5)P 2 ) to produce phosphatidylinositol-3- phosphate (PBP), phosphatidylinositol-3,4-bisphosphate (PI(3,4)P 2 , and phosphatidylinositol-3,4,5-trisphosphate (PI(3,4,5)P 3 , respectively.
  • PI phosphatidylinositol
  • P4P phosphatidylinositol-4-phosphate
  • PI(4,5)P 2 phosphatidylinositol-4,5-bisphosphate
  • Class II PBKs phosphorylate PI and phosphatidylinositol-4-phosphate.
  • Class III PBKs can only phosphorylate PI (Vanhaesebrokeck et al., 1997, above; Vanhaesebroeck et al., 1999, above and Leslie et al, 2001, above)
  • phosphoinositide 3-kinases phosphorylate the hydroxyl of the third carbon of the inositol ring.
  • the phosphorylation of phosphoinositides that generate Ptdlns to 3,4,5-trisphosphate (PtdIns(3,4,5)P3), PtdIns(3,4)P2 and PtdIns(3)P produce second messengers for a variety of signal transduction pathways, including those essential to cell proliferation, cell differentiation, cell growth, cell size, cell survival, apoptosis, adhesion, cell motility, cell migration, chemotaxis, invasion, cytoskeletal rearrangement, cell shape changes, vesicle trafficking and metabolic pathway (Katso et al, 2001, above and MoI.
  • G-protein coupled receptors mediate phosphoinositide 3'OH-kinase activation via small GTPases such as G ⁇ and Ras, and consequently PI3K signaling plays a central role in establishing and coordinating cell polarity and dynamic organization of the cytoskeleton - which together provides the driving force of cells to move.
  • Chemotaxis the directed movement of cells toward a concentration gradient of chemical attractants, also called chemokines is involved in many important diseases such as inflammation/auto-immunity, neurodegeneration, antiogenesis, invasion/metastasis and wound healing (Immunol. Today 21(6) p.
  • PI3-Kinase responsible for generating these phosphorylated signalling products, was originally identified as an activity associated with viral oncoproteins and growth factor receptor tyrosine kinases that phosphorylates phosphatidylinositol (PI) and its phosphorylated derivatives at the 3'- hydroxyl of the inositol ring (Panayotou et al., Trends Cell Biol. 2 p. 358-60 (1992)).
  • PI phosphatidylinositol
  • class I PI3 kinases e.g. class IB isoform PI3K ⁇
  • class IB isoform PI3K ⁇ are dual-specific kinase enzymes, meaning they display both lipid kinase and protein kinase activity, shown to be capable of phosphorylation of other proteins as substrates, as well as auto-phosphorylation as an intra-molecular regulatory mechanism.
  • PI3-kinase activation is therefore believed to be involved in a range of cellular responses including cell growth, differentiation, and apoptosis (Parker et al., Current Biology, 5 p. 577-99 (1995); Yao et al., Science, 267 p. 2003-05 (1995)).
  • PI3-kinase appears to be involved in a number of aspects of leukocyte activation.
  • a p85-associated PI3 -kinase activity has been shown to physically associate with the cytoplasmic domain of CD28, which is an important costimulatory molecule for the activation of T-cells in response to antigen (Pages et al., Nature, 369 p.
  • PI3K ⁇ has been identified as a mediator of G beta-gamma-dependent regulation of JNK activity, and G beta-gamma are subunits of heterotrimeric G proteins (Lopez- Ilasaca et al., J. Biol. Chem. 273(5) p. 2505-8 (1998)).
  • Cellular processes in which PBKs play an essential role include suppression of apoptosis, reorganization of the actin skeleton, cardiac myocyte growth, glycogen synthase stimulation by insulin, TNF ⁇ -mediated neutrophil priming and superoxide generation, and leukocyte migration and adhesion to endothelial cells. Recently, (Laffargue et al, Immunity 16(3) p.
  • PBK ⁇ relays inflammatory signals through various G(i)-coupled receptors and its central to mast cell function, stimuli in context of leukocytes, immunology includes cytokines, chemokines, adenosines, antibodies, integrins, aggregation factors, growth factors, viruses or hormones for example (J. Cell. Sci. 114(Pt 16) p. 2903-10 (2001) by Lawlor et al.; Laffargue et al., 2002, above and Curr. Opinion Cell Biol. 14(2) p. 203-13 (2002) by Stephens et al.).
  • PI3-kinase inhibitors Two compounds, LY294002 and wortmannin (cf. hereinafter), have been widely used as PI3-kinase inhibitors. These compounds are non-specific PI3K inhibitors, as they do not distinguish among the four members of Class I PI3-kinases.
  • the IC50 values of wortmannin against each of the various Class I PI3 -kinases are in the range of 1-10 nM.
  • the IC50 values for LY294002 against each of these PI3-kinases is about 15-20 ⁇ M (Fruman et al., Ann. Rev. Biochem., 67, p.
  • wortmannin is a fungal metabolite which irreversibly inhibits PI3K activity by binding covalently to the catalytic domain of this enzyme. Inhibition of PI3K activity by wortmannin eliminates subsequent cellular response to the extracellular factor.
  • neutrophils respond to the chemokine fMet-Leu-Phe (fMLP) by stimulating PI3K and synthesizing Ptdlns (3, 4, 5)P3. This synthesis correlates with activation of the respirators burst involved in neutrophil destruction of invading microorganisms.
  • Class I PBK is a heterodimer consisting of a pi 10 catalytic subunit and a regulatory subunit, and the family is further divided into class Ia and Class Ib enzymes on the basis of regulatory partners and mechanism of regulation.
  • Class Ia enzymes consist of three distinct catalytic subunits (pl lO ⁇ , pl lO ⁇ , and pl lO ⁇ ) that dimerise with five distinct regulatory subunits (p85 ⁇ , p55 ⁇ , p50 ⁇ , p85 ⁇ , and p55 ⁇ ), with all catalytic subunits being able to interact with all regulatory subunits to form a variety of heterodimers.
  • Class Ia PBK are generally activated in response to growth factor-stimulation of receptor tyrosine kinases, via interaction of the regulatory subunit SH2 domains with specific phospho- tyrosine residues of the activated receptor or adaptor proteins such as IRS-I.
  • Small GTPases (ras as an example) are also involved in the activation of PBK in conjunction with receptor tyrosine kinase activation. Both pl lO ⁇ and pl lO ⁇ are constitutively expressed in all cell types, whereas pl lO ⁇ expression is more restricted to leukocyte populations and some epithelial cells.
  • the single Class Ib enzyme consists of a pl lO ⁇ catalytic subunit that interacts with a plOl regulatory subunit. Furthermore, the Class Ib enzyme is activated in response to G-protein coupled receptor (GPCR) systems and its expression appears to be limited to leukocytes.
  • GPCR G-protein coupled receptor
  • Tumor-related mutations in p85 ⁇ have also been identified in cancers such as those of the ovary and colon (Philp et al, Cancer Research, 2001, 61_, 7426-7429).
  • activation of Class Ia PI3K contributes to tumourigenic events that occur upstream in signaling pathways, for example by way of ligand-dependent or ligand-independent activation of receptor tyrosine kinases, GPCR systems or integrins (Vara et al, Cancer Treatment Reviews, 2004, 30, 193-204).
  • upstream signaling pathways examples include over-expression of the receptor tyrosine kinase Erb2 in a variety of tumors leading to activation of PI3K-mediated pathways (Harari et al., Oncogene, 2000, 19, 6102-6114) and over-expression of the oncogene Ras (Kauffmann-Zeh et al., Nature, 1997, 385, 544-548).
  • Class Ia PBKs may contribute indirectly to tumourigenesis caused by various downstream signaling events.
  • loss of function of the PTEN tumor-suppressor phosphatase that catalyses conversion of PI(3,4,5)P3 back to PI(4,5)P2 is associated with a very broad range of tumors via deregulation of PBK-mediated production of PI(3,4,5)P3 (Simpson and Parsons, Exp. Cell Res., 2001, 264, 29-41).
  • augmentation of the effects of other PBK-mediated signaling events is believed to contribute to a variety of cancers, for example by activation of AKT (Nicholson and Andeson, Cellular Signaling, 2002, 14, 381-395).
  • PBK signaling is known to play an important role in mediating angiogenic events in endothelial cells in response to pro-angiogenic factors such as VEGF (abid et al., Arterioscler, Thromb. Vase. Biol., 2004,
  • PBK inhibitors are anticipated to provide therapeutic benefit via inhibition of tumor cell invasion and metastasis.
  • This invention relates to novel compounds of Formula (I):
  • Rl is a ring system containing 1 to 2 double bonds represented by Formula (II):
  • This invention also relates to a method of treating cancer, which comprises administering to a subject in need thereof an effective amount of a compound of Formula
  • This invention also relates to a method of treating one or more disease states selected from: autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, sperm motility, transplantation rejection, graft rejection and lung injuries, which comprises administering to a subject in need thereof an effective amount of a compound of Formula (I).
  • Included in the present invention are methods of co-administering the present PB kinase inhibiting compounds with further active ingredients.
  • This invention relates to novel compounds of Formula (I). This invention also relates to novel compounds of Formula (I)(A):
  • Rl is represented by a formula selected from a group consisting of: formulas (III), (IV)
  • X is O, N or S
  • Y is O or S; each R2, R3, R4 and R5 is independently selected from: hydrogen, halogen, acyl, sulfonyl, amino, formyl, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-
  • This invention also relates to novel compounds of Formula (I)(B):
  • Rl is represented by a formula selected from a group consisting of: formulas (III) (IV), (V) and (VI):
  • This invention also relates to novel compounds of Formulas (I)(A) or (I)(B), wherein Rl, and R2 and R5 are defined as above; and n is 0;
  • R4 is hydrogen or amino; or a pharmaceutically acceptable salt thereof.
  • This invention also relates to novel compounds of Formulas (I)(A) or (I)(B), wherein X is N or O;
  • Rl, and R2 and R5 are otherwise defined as above; n is 0;
  • R4 is hydrogen or amino; or a pharmaceutically acceptable salt thereof.
  • This invention also relates to novel compounds of Formulas (I)(A) or (I)(B), wherein
  • R2 is selected from a group consisting of:
  • X is N or O
  • R5 is selected from a group consisting of: formyl, halogen, acyl, sulfonyl, amino, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-7cycloalkyl, substituted C3-
  • Rl is otherwise defined as above; n is O;
  • R4 is hydrogen or amino; or a pharmaceutically acceptable salt thereof.
  • This invention also relates to novel compounds of Formulas (I)(A) or (I)(B), wherein R2 is selected from a group consisting of:
  • Rl is a ring selected from a group consisting of: pyrazole, oxazole, thiadiazole, oxadiazole, isooxazole and isothiazole, optionally substituted with 1 to 2 substituentss, each of which is independently selected from a group consisting of: formyl, halogen, acyl, sulfonyl, amino, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-
  • R4 is hydrogen or amino; or a pharmaceutically acceptable salt thereof.
  • This invention also relates to novel compounds of Formulas (I)(A) or (I)(B), wherein R2 is selected from a group consisting of:
  • Rl is a pyrazole optionally substituted with 1 to 2 groups, each of which is independently selected from a group consisting of: formyl, halogen, acyl, sulfonyl, amino, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-7cycloalkyl, substituted C3-7cycloalkyl, C3-7heterocycloalkyl, substituted C3-7heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, cyano, hydroxyl and alkoxy; n is 0;
  • R4 is hydrogen or amino; or a pharmaceutically acceptable salt thereof.
  • This invention also relates to novel compounds of Formulas (I)(A) or (I)(B), wherein
  • R2 is selected from a group consisting of:
  • Rl is a pyrazole optionally substituted with 1 to 2 groups, each of which is independently selected from a group consisting of: formyl, halogen, sulfonyl, amino, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-7cycloalkyl, substituted C3-
  • This invention also relates to novel compounds of Formula (I)(C):
  • Rl is an aromatic ring system of formula (II):
  • X is C, O, N or S; each R2, R3, R4 and R5 is independently selected from: hydrogen, halogen, acyl, sulfonyl, amino, formyl, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3- 7cycloalkyl, substituted C3-7cycloalkyl, C3-7heterocycloalkyl, substituted C3- 7heterocycloalkyl, alkylcarboxy, arylamino, aryl, substituted aryl, heteroaryl, substituted heteroaryl, arylalkyl, substituted arylalkyl, arylcycloalkyl, substituted arylcycloalkyl, heteroarylalkyl, substituted heteroarylalkyl, cyano, alkoxy, nitro, acyloxy, and aryloxy; n is 0-2; m is 0-3; two adjacent R5 groups may form an additional five or six-membered
  • This invention also relates to novel compounds of Formula (I)(D):
  • Rl is an aromatic ring system of formula (II):
  • X is C, O, N or S; each R2, R3 and R5 is independently selected from: hydrogen, halogen, acyl, sulfonyl, amino, formyl, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-7cycloalkyl, substituted C3-7cycloalkyl, C3-7heterocycloalkyl, substituted C3-7heterocycloalkyl, alkylcarboxy, arylamino, aryl, substituted aryl, heteroaryl, substituted heteroaryl, arylalkyl, substituted arylalkyl, arylcycloalkyl, substituted arylcycloalkyl, heteroarylalkyl, substituted heteroarylalkyl, cyano, alkoxy, nitro, acyloxy, and aryloxy;
  • R4 is hydrogen or amino; n is 0-2; m is 0-3; two adjacent R5 groups may form an additional five or six-membered ring containing 0-2 hetero atoms, wherein said additional ring is optionally substituted with 1 to 2 substituents selected from a group consisting of: Cl-3alkyl, halogen, amino and alkoxy; or a pharmaceutically acceptable salt thereof; that when Rl is thiophene, R4 is not piperazine;
  • This invention also relates to novel compounds of Formula (I)(E):
  • Rl is an aromatic ring system of formula (II):
  • X is C, O, N or S; each R2, R4 and R5 is independently selected from: hydrogen, halogen, acyl, sulfonyl, amino, formyl, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-7cycloalkyl, substituted C3-7cycloalkyl, C3-7heterocycloalkyl, substituted C3-7heterocycloalkyl, alkylcarboxy, arylamino, aryl, substituted aryl, heteroaryl, substituted heteroaryl, arylalkyl, substituted arylalkyl, arylcycloalkyl, substituted arylcycloalkyl, heteroarylalkyl, substituted heteroarylalkyl, cyano, alkoxy, nitro, acyloxy, and aryloxy;
  • R3 is selected from a group consisting of: hydrogen, halogen, acyl, amino, formyl, substituted amino, Cl-6alkyl, substituted Cl-6alkyl, C3-7cycloalkyl, substituted C3- 7cycloalkyl; n is 0-2; m is 0-3; two adjacent R5 groups may form an additional five or six-membered ring containing
  • This invention also relates to the following compounds:
  • This invention also relates to a method of treating cancer, which comprises coadministering to a subject in need thereof an effective amount of a compound of Formula (I), or a pharmaceutically acceptable salt thereof; and at least one anti-neoplastic agent such as one selected from the group consisting of: anti-microtubule agents, plantinum coordination complexes, alkylating agents, antibiotic agents, topoisomerase II inhibitors, antimetabolites, topoisomerase I hinibitors, hormones and hormonal anlogues, signal transduction pathway inhibitors, non-receptor tyrosine kinase angiogenesis inhibitors, immunotherapeutic agents, proapoptotic agents, and cell cycle signaling inhibitors.
  • anti-neoplastic agent such as one selected from the group consisting of: anti-microtubule agents, plantinum coordination complexes, alkylating agents, antibiotic agents, topoisomerase II inhibitors, antimetabolites, topoisomerase I hinibitors, hormones and hormonal anlogues, signal transduction pathway
  • This invention also relates to a method of treating cancer, which comprises co- administering to a subject in need thereof an effective amount of a compound of Formula
  • receptor tyrosine kinase inhibitor such as one selected from the group consisting of: receptor tyrosine kinase inhibitor, non-receptor tyrosine kinase inhibitor, S ⁇ 2/S ⁇ 3 domain blocker, serine/threonine kinase inhibitor, phosphotidyl inositol-3 kinase inhibitor, myo-inositol singaling inhibitor, and Ras oncogene inhibitor.
  • the term "effective amount” means that amount of a drug or pharmaceutical agent that will elicit the biological or medical response of a tissue, system, animal or human that is being sought, for instance, by a researcher or clinician.
  • therapeutically effective amount means any amount which, as compared to a corresponding subject who has not received such amount, results in improved treatment, healing, prevention, or amelioration of a disease, disorder, or side effect, or a decrease in the rate of advancement of a disease or disorder.
  • the term also includes within its scope amounts effective to enhance normal physiological function.
  • substituted amino as used herein, is meant -NR30R40 wherein each R30 and R40 is independently selected from a group including hydrogen, Cl-6alkyl, acyl, sulfonyl, C3-C7cycloalkyl, wherein at least one of R30 and R40 is not hydrogen.
  • acyl as used herein, unless otherwise defined, is meant
  • sulfonyl as used herein is meant -SO2R35, wherein R35 is Cl- ⁇ alkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl.
  • aryl as used herein, unless otherwise defined, is meant aromatic, hydrocarbon, ring system.
  • the ring system may be monocyclic or fused polycyclic (e.g. bicyclic, tricyclic, etc.).
  • the monocyclic aryl ring is C5-C10, or
  • a C6 ring system i.e. a phenyl ring is a suitable aryl group.
  • the polycyclic ring is a bicyclic aryl group, where suitable bicyclic aryl groups are C8-C12, or C9-C10.
  • a naphthyl ring, which has 10 carbon atoms, is a suitable polycyclic aryl group.
  • heteroaryl an aromatic ring system containing carbon(s) and at least one heteroatom.
  • Heteroaryl may be monocyclic or polycyclic.
  • a monocyclic heteroaryl group may have 1 to 4 heteroatoms in the ring, while a polycyclic heteroaryl may contain 1 to 10 hetero atoms.
  • a polycyclic heteroaryl ring may contain fused, spiro or bridged ring junctions, for example, bicyclic heteroaryl is a polycyclic heteroaryl.
  • Bicyclic heteroaryl rings may contain from 8 to 12 member atoms.
  • Monocyclic heteroaryl rings may contain from 5 to 8 member atoms (carbons and heteroatoms).
  • heteroaryl groups include but are not limited to: benzofuran, benzothiophene, furan, imidazole, indole, isothiazole, oxazole, pyrazine, pyrazole, pyridazine, pyridine, pyrimidine, pyrrole, quinoline, quinazoline, quinoxaline, thiazole, and thiophene.
  • monocyclic heteroaryl as used herein, unless otherwise defined, is meant a monocyclic heteroaryl ring containing 1-5 carbon atoms and 1-4 hetero atoms.
  • alkylcarboxy as used herein, unless otherwise defined, is meant -
  • alkoxy as used herein is meant -O(alkyl) including -OCH3, - OCH 2 CH 3 and -OC(CH3)3 where alkyl is as described herein.
  • alkylthio as used herein is meant -S(alkyl) including -SCH3, - SCH 2 CH 3 where where alkyl is as described herein.
  • cycloalkyl as used herein unless otherwise defined, is meant a nonaromatic, unsaturated or saturated, cyclic or polycyclic C3-C ⁇ 2-
  • cycloalkyl and substituted cycloalkyl substituents as used herein include: cyclohexyl, aminocyclohexyl, cyclobutyl, aminocyclobutyl, 4-hydroxy- cyclohexyl, 2-ethylcyclohexyl, propyW-methoxycyclohexyl, 4-methoxycyclohexyl, A- carboxycyclohexyl, cyclopropyl, aminocyclopentyl, and cyclopentyl.
  • heterocycloalkyl as used herein is meant a non-aromatic, unsaturated or saturated, monocyclic or polycyclic, heterocyclic ring containing at least one carbon and at least one heteroatom.
  • exemplary monocyclic heterocyclic rings include: piperidine, piperazine, pyrrolidine, and morpholine.
  • exemplary polycyclic heterocyclic rings include quinuclidine.
  • substituted is meant that the subject chemical moiety has one to five substituents, suitably from one to three, selected from the group consisting of: hydrogen, halogen, Cl-C6alkyl, amino, trifluoromethyl, - (CH 2 ) n COOH, C3-C7cycloalkyl, substituted amino, aryl, heteroaryl, arylalkyl, arylcycloalkyl, heteroarylalkyl, heterocycloalkyl, cyano, hydroxyl, alkoxy, alkylthio, aryloxy, acyloxy, acyl, acylamino, arylamino, nitro, oxo, -CO2R50, -SO2R70, -NR50SO2R70, NR 5 oC(0)R 75 and -CONR 55 R 60 , wherein R50 and R55 are each independently selected from: hydrogen, alkyl, and C3-
  • arylamino and “aryloxy” is meant that the subject chemical moiety has one to five substituents, suitably from one to three, selected from the group consisting of: hydrogen, Cl-C6alkyl, halogen, trifluoromethyl, -(CH 2 ) n COOH, amino, substituted amino, cyano, hydroxyl, alkoxy, alkylthio, aryloxy, acyloxy, acyl, acylamino, and nitro, n is 0-6.
  • acyloxy as used herein is meant -OC(O)alkyl where alkyl is as described herein.
  • acyloxy substituents as used herein include: -OC(O)CH3, - OC(O)CH(CH 3 ) 2 and -OC(O)(CH 2 )3CH 3 .
  • acylamino as used herein is meant -N(H)C(O)alkyl, -
  • substituents selected from a group consisting of: halogen, Cl-3alkyl, alkoxy, amino and acyl.
  • Examples of N-acylamino substituents as used herein include: -N(H)C(O)CH 3 , -N(H)C(O)CH(CH 3 ) 2 and -N(H)C(O)(CH 2 )3CH 3 .
  • aryloxy as used herein is meant -O(aryl), -O(substituted aryl), - O(heteroaryl) or -O(substituted heteroaryl).
  • arylamino as used herein is meant -NRgo(aryl), -NRgo(substituted aryl), -NRgo(heteroaryl) or -NRgo(substituted heteroaryl), wherein R80 is H, Cl-6alkyl or C3-C7cycloalkyl.
  • heteroatom oxygen, nitrogen or sulfur.
  • halogen as used herein is meant a substituent selected from bromide, iodide, chloride and fluoride.
  • alkyl and derivatives thereof and in all carbon chains as used herein, including alkyl chains defined by the term “-(CH 2 V, “-(CH 2 ) m “ and the like, is meant a linear or branched, saturated or unsaturated hydrocarbon chain, and unless otherwise defined, the carbon chain will contain from 1 to 12 carbon atoms.
  • substituted alkyl an alkyl group substituted with one to six substituents selected from the group consisting of: halogen, trifluoromethyl, alkylcarboxy, amino, substituted amino, cyano, hydroxyl, alkoxy, alkylthio, aryloxy, acyloxy, acyl, acylamino, carbamate, urea, sulfonyl, C3-7cycloheteralkyl, C3-7cycloalkyl and nitro.
  • alkyl and substituted alkyl substituents as used herein include: -CH 3 , -CH 2 -CH 3 , -CH 2 -CH 2 -CH 3 , -CH(CH 3 ) 2 , -CH 2 -CH 2 -C(CH 3 ) 3 , -CH 2 -CF 3 , C ⁇ C-C(CH 3 ) 3 , -C ⁇ C-CH 2 -OH, cyclopropylmethyl, -CH 2 -C(CH 3 ) 2 -CH 2 -NH 2 , C ⁇ C-C 6 H 5 , -C ⁇ C-C(CH 3 ) 2 -OH, -CH 2 -CH(OH)-CH(OH)-CH(OH)-CH(OH)-CH(OH)-CH 2 -OH, piperidinylmethyl, methoxyphenylethyl, -C(CH 3 ) 3 , -(CH 2 ) 3 -CH 3 , -CH 2
  • prophylatic therapy is meant the institution of measures to protect a person from a disease to which he or she has been, or may be, exposed. Also called preventive treatment.
  • co-administering and derivatives thereof as used herein is meant either simultaneous administration or any manner of separate sequential administration of a PB kinase inhibiting compound, as described herein, and a further active ingredient or ingredients.
  • further active ingredient or ingredients includes any compound or therapeutic agent known to or that demonstrates advantageous properties when administered to a patient in need of treatment.
  • the compounds are administered in a close time proximity to each other.
  • the compounds are administered in the same dosage form, e.g. one compound may be administered topically and another compound may be administered orally.
  • Such isomers include: enantiomers, tautomers, rotamers.
  • enantiomers tautomers
  • rotamers In formulas where a "dotted" bond is drawn between two atoms, it is meant that such bond can be either single or double bond.
  • a ring system containing such bonds can be aromatic or non-aromatic.
  • Certain compounds described herein may contain one or more chiral atoms, or may otherwise be capable of existing as two enantiomers, or two or more diastereoisomers.
  • the compounds of this invention include mixtures of enantiomers/diastereoisomers as well as purified enantiomers/diastereoisomers or enantiomerically/diastereoisomerically enriched mixtures. Also included within the scope of the invention are the individual isomers of the compounds represented by formula I or II above as well as any wholly or partially equilibrated mixtures thereof. The present invention also covers the individual isomers of the compounds represented by the formulas above as mixtures with isomers thereof in which one or more chiral centers are inverted.
  • tautomer is an oxo substituent in place of a hydroxy substituent. Also, as stated above, it is understood that all tautomers and mixtures of tautomers are included within the scope of the compounds of Formula I or II.
  • esters can be employed, for example methyl, ethyl, pivaloyloxymethyl, and the like for -COOH, and acetate maleate and the like for -OH, and those esters known in the art for modifying solubility or hydrolysis characteristics, for use as sustained release or prodrug formulations. It has now been found that compounds of the present invention are inhibitors of the Phosphatoinositides 3-kinases (PBKs).
  • PBKs Phosphatoinositides 3-kinases
  • PBK phosphatoinositides 3-kinase
  • the compounds of the present invention are therefore useful in the treatment of autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, cancer, sperm motility, transplantation rejection, graft rejection and lung injuries.
  • the compounds of Formula (I) are useful as medicaments in particular for the treatment of autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, cancer, sperm motility, transplantation rejection, graft rejection and lung injuries.
  • the compounds of Formula (I) are inhibitors of one or more phosphatoinositides 3-kinases (PBKs), suitably, Phosphatoinositides 3-kinase ⁇ (PBK ⁇ ), Phosphatoinositides 3-kinase ⁇ (PBK ⁇ ), Phosphatoinositides 3-kinase ⁇ (PBK ⁇ ), or Phosphatoinositides 3-kinase ⁇ (PBK ⁇ ).
  • PBKs phosphatoinositides 3-kinases
  • Compounds according to Formula (I) are suitable for the modulation, notably the inhibition of the activity of phosphatoinositides 3-kinases (PBK), suitably phosphatoinositides 3-kinase (PBK ⁇ ). Therefore the compounds of the present invention are also useful for the treatment of disorders which are mediated by PBKs. Said treatment involves the modulation - notably the inhibition or the down regulation - of the phosphatoinositides 3-kinases.
  • the compounds of the present invention are used for the preparation of a medicament for the treatment of a disorder selected from multiple sclerosis, psoriasis, rheumatoid arthritis, systemic lupus erythematosis, inflammatory bowel disease, lung inflammation, thrombosis or brain infection/inflammation, such as meningitis or encephalitis, Alzheimer's disease, Huntington's disease, CNS trauma, stroke or ischemic conditions, cardiovascular diseases such as athero-sclerosis, heart hypertrophy, cardiac myocyte dysfunction, elevated blood pressure or vasoconstriction.
  • a disorder selected from multiple sclerosis, psoriasis, rheumatoid arthritis, systemic lupus erythematosis, inflammatory bowel disease, lung inflammation, thrombosis or brain infection/inflammation, such as meningitis or encephalitis, Alzheimer's disease, Huntington's disease, CNS trauma, stroke or ischemic conditions, cardiovascular diseases such as at
  • the compounds of Formula (I) are useful for the treatment of autoimmune diseases or inflammatory diseases such as multiple sclerosis, psoriasis, rheumatoid arthritis, systemic lupus erythematosis, inflammatory bowel disease, lung inflammation, thrombosis or brain infection/inflammation such as meningitis or encephalitis.
  • autoimmune diseases or inflammatory diseases such as multiple sclerosis, psoriasis, rheumatoid arthritis, systemic lupus erythematosis, inflammatory bowel disease, lung inflammation, thrombosis or brain infection/inflammation such as meningitis or encephalitis.
  • the compounds of Formula (I) are useful for the treatment of neurodegenerative diseases including multiple sclerosis, Alzheimer's disease, Huntington's disease, CNS trauma, stroke or ischemic conditions.
  • the compounds of Formula (I) are useful for the treatment of cardiovascular diseases such as atherosclerosis, heart hypertrophy, cardiac myocyte dysfunction, elevated blood pressure or vasoconstriction.
  • the compounds of Formula (I) are useful for the treatment of chronic obstructive pulmonary disease, anaphylactic shock fibrosis, psoriasis, allergic diseases, asthma, stroke, ischemic conditions, ischemia-reperfusion, platelets aggregation/activation, skeletal muscle atrophy/hypertrophy, leukocyte recruitment in cancer tissue, angiogenesis, invasion metastasis, in particular melanoma, Karposi's sarcoma, acute and chronic bacterial and virual infections, sepsis, transplantation rejection, graft rejection, glomerulo sclerosis, glomerulo nephritis, progressive renal fibrosis, endothelial and epithelial injuries in the lung, and lung airway inflammation.
  • the pharmaceutically active compounds of the present invention are active as PB kinase inhibitors, particularly the compounds that inhibit PBK ⁇ , either selectively or in conjunction with one or more of PBK ⁇ , PBK ⁇ , or PBK ⁇ , they exhibit therapeutic utility in treating cancer.
  • the invention relates to a method of treating cancer in a mammal, including a human, wherein the cancer is selected from: brain (gliomas), glioblastomas, leukemias, Bannayan-Zonana syndrome, Cowden disease, Lhermitte-Duclos disease, breast, inflammatory breast cancer, Wilm's tumor, Ewing's sarcoma, Rhabdomyosarcoma, ependymoma, medulloblastoma, colon, head and neck, kidney, lung, liver, melanoma, ovarian, pancreatic, prostate, sarcoma, osteosarcoma, giant cell tumor of bone and thyroid.
  • brain gliomas
  • glioblastomas leukemias
  • Bannayan-Zonana syndrome Cowden disease
  • Lhermitte-Duclos disease breast
  • inflammatory breast cancer Wilm's tumor
  • Ewing's sarcoma Rhabdomyosarcoma
  • the invention relates to a method of treating cancer in a mammal, including a human, wherein the cancer is selected from: Lymphoblastic T cell leukemia,
  • Chronic myelogenous leukemia Chronic lymphocytic leukemia, Hairy-cell leukemia, acute lymphoblastic leukemia, acute myelogenous leukemia, Chronic neutrophilic leukemia, Acute lymphoblastic T cell leukemia, Plasmacytoma, Immunoblastic large cell leukemia, Mantle cell leukemia, Multiple myeloma Megakaryoblastic leukemia, multiple myeloma, Acute megakaryocyte leukemia, promyelocytic leukemia and Erythroleukemia.
  • the invention relates to a method of treating cancer in a mammal, including a human, wherein the cancer is selected from: malignant lymphoma, hodgkins lymphoma, non-hodgkins lymphoma, lymphoblastic T cell lymphoma, Burkitt's lymphoma and follicular lymphoma.
  • the invention relates to a method of treating cancer in a mammal, including a human, wherein the cancer is selected from: neuroblastoma, bladder cancer, urothelial cancer, lung cancer, vulval cancer, cervical cancer, endometrial cancer, renal cancer, mesothelioma, esophageal cancer, salivary gland cancer, hepatocellular cancer, gastric cancer, nasopharangeal cancer, buccal cancer, cancer of the mouth, GIST (gastrointestinal stromal tumor) and testicular cancer.
  • the cancer is selected from: neuroblastoma, bladder cancer, urothelial cancer, lung cancer, vulval cancer, cervical cancer, endometrial cancer, renal cancer, mesothelioma, esophageal cancer, salivary gland cancer, hepatocellular cancer, gastric cancer, nasopharangeal cancer, buccal cancer, cancer of the mouth, GIST (gastrointestinal stromal tumor) and testicular cancer.
  • a compound of Formula (I) When a compound of Formula (I) is administered for the treatment of cancer, the term “co-administering" and derivatives thereof as used herein is meant either simultaneous administration or any manner of separate sequential administration of a PB kinase inhibiting compound, as described herein, and a further active ingredient or ingredients, known to be useful in the treatment of cancer, including chemotherapy and radiation treatment.
  • the term further active ingredient or ingredients, as used herein includes any compound or therapeutic agent known to or that demonstrates advantageous properties when administered to a patient in need of treatment for cancer.
  • the compounds are administered in a close time proximity to each other.
  • the compounds are administered in the same dosage form, e.g. one compound may be administered topically and another compound may be administered orally.
  • any anti-neoplastic agent that has activity versus a susceptible tumor being treated may be co-administered in the treatment of cancer in the present invention.
  • examples of such agents can be found in Cancer Principles and Practice f Oncology by V. T. Devita and S. Hellman (editors), 6 th edition (February 15, 2001), Lippincott Williams & Wilkins Publishers.
  • a person of ordinary skill in the art would be able to discern which combinations of agents would be useful based on the particular characteristics of the drugs and the cancer involved.
  • Typical anti-neoplastic agents useful in the present invention include, but are not limited to, anti-microtubule agents such as diterpenoids and vinca alkaloids; platinum coordination complexes; alkylating agents such as nitrogen mustards, oxazaphosphorines, alkylsulfonates, nitrosoureas, and triazenes; antibiotic agents such as anthracyclins, actinomycins and bleomycins; topoisomerase II inhibitors such as epipodophyllotoxins; antimetabolites such as purine and pyrimidine analogues and anti- folate compounds; topoisomerase I inhibitors such as camptothecins; hormones and hormonal analogues; signal transduction pathway inhibitors; non-receptor tyrosine kinase angiogenesis inhibitors; immunotherapeutic agents; proapoptotic agents; and cell cycle signaling inhibitors.
  • anti-microtubule agents such as diterpenoids and vinca alkaloids
  • Anti-microtubule or anti-mitotic agents are phase specific agents active against the microtubules of tumor cells during M or the mitosis phase of the cell cycle.
  • anti-microtubule agents include, but are not limited to, diterpenoids and vinca alkaloids.
  • Diterpenoids which are derived from natural sources, are phase specific anti - cancer agents that operate at the G 2 ZM phases of the cell cycle. It is believed that the diterpenoids stabilize the ⁇ -tubulin subunit of the microtubules, by binding with this protein. Disassembly of the protein appears then to be inhibited with mitosis being arrested and cell death following. Examples of diterpenoids include, but are not limited to, paclitaxel and its analog docetaxel.
  • Paclitaxel 5 ⁇ ,20-epoxy-l,2 ⁇ ,4,7 ⁇ ,10 ⁇ ,13 ⁇ -hexa-hydroxytax-l l-en-9-one 4,10- diacetate 2-benzoate 13-ester with (2R,3S)-N-benzoyl-3-phenylisoserine; is a natural diterpene product isolated from the Pacific yew tree Taxus brevifolia and is commercially available as an injectable solution TAXOL®. It is a member of the taxane family of terpenes. It was first isolated in 1971 by Wani et al. J. Am. Chem, Soc, 93:2325. 1971), who characterized its structure by chemical and X-ray crystallographic methods.
  • Paclitaxel has been approved for clinical use in the treatment of refractory ovarian cancer in the United States (Markman et al., Yale Journal of Biology and Medicine, 64:583, 1991; McGuire et al., Ann. Intern, Med., 111 :273,1989) and for the treatment of breast cancer (Holmes et al., J. Nat. Cancer Inst., 83:1797,1991.) It is a potential candidate for treatment of neoplasms in the skin (Einzig et. al., Proc. Am. Soc. Clin. Oncol., 20:46) and head and neck carcinomas (Forastire et. al., Sem. Oncol., 20:56, 1990).
  • the compound also shows potential for the treatment of polycystic kidney disease (Woo et. al., Nature, 368:750. 1994), lung cancer and malaria.
  • Treatment of patients with paclitaxel results in bone marrow suppression (multiple cell lineages, Ignoff, R.J. et. al, Cancer Chemotherapy Pocket Guid ⁇ i 1998) related to the duration of dosing above a threshold concentration (5OnM) (Kearns, CM. et. al., Seminars in Oncology, 3(6) p.16-23, 1995).
  • Docetaxel is indicated for the treatment of breast cancer.
  • Docetaxel is a semisynthetic derivative of paclitaxel q.v., prepared using a natural precursor, 10-deacetyl-baccatin III, extracted from the needle of the European Yew tree.
  • the dose limiting toxicity of docetaxel is neutropenia.
  • Vinca alkaloids are phase specific anti-neoplastic agents derived from the periwinkle plant. Vinca alkaloids act at the M phase (mitosis) of the cell cycle by binding specifically to tubulin. Consequently, the bound tubulin molecule is unable to polymerize into microtubules. Mitosis is believed to be arrested in metaphase with cell death following. Examples of vinca alkaloids include, but are not limited to, vinblastine, vincristine, and vinorelbine.
  • Vinblastine vincaleukoblastine sulfate
  • VELBAN® an injectable solution.
  • Myelosuppression is the dose limiting side effect of vinblastine.
  • Vincristine vincaleukoblastine, 22-oxo-, sulfate
  • ONCOVIN® an injectable solution.
  • Vincristine is indicated for the treatment of acute leukemias and has also found use in treatment regimens for Hodgkin's and non-Hodgkin's malignant lymphomas.
  • Alopecia and neurologic effects are the most common side effect of vincristine and to a lesser extent myelosupression and gastrointestinal mucositis effects occur.
  • Vinorelbine 3',4'-didehydro -4'-deoxy-C'-norvincaleukoblastine [R-(R*,R*)-2,3- dihydroxybutanedioate (l :2)(salt)], commercially available as an injectable solution of vinorelbine tartrate (NAVELBINE®), is a semisynthetic vinca alkaloid.
  • Vinorelbine is indicated as a single agent or in combination with other chemotherapeutic agents, such as cisplatin, in the treatment of various solid tumors, particularly non-small cell lung, advanced breast, and hormone refractory prostate cancers. Myelosuppression is the most common dose limiting side effect of vinorelbine.
  • Platinum coordination complexes are non-phase specific anti-cancer agents, which are interactive with DNA.
  • the platinum complexes enter tumor cells, undergo, aquation and form intra- and interstrand crosslinks with DNA causing adverse biological effects to the tumor.
  • Examples of platinum coordination complexes include, but are not limited to, cisplatin and carboplatin.
  • Cisplatin cis-diamminedichloroplatinum
  • PLATINOL® an injectable solution.
  • Cisplatin is primarily indicated in the treatment of metastatic testicular and ovarian cancer and advanced bladder cancer.
  • the primary dose limiting side effects of cisplatin are nephrotoxicity, which may be controlled by hydration and diuresis, and ototoxicity.
  • Carboplatin platinum, diammine [l,l-cyclobutane-dicarboxylate(2-)-O,O'], is commercially available as PARAPLATIN® as an injectable solution.
  • Carboplatin is primarily indicated in the first and second line treatment of advanced ovarian carcinoma. Bone marrow suppression is the dose limiting toxicity of carboplatin.
  • Alkylating agents are non-phase anti-cancer specific agents and strong electrophiles. Typically, alkylating agents form covalent linkages, by alkylation, to DNA through nucleophilic moieties of the DNA molecule such as phosphate, amino, sulfhydryl, hydroxyl, carboxyl, and imidazole groups. Such alkylation disrupts nucleic acid function leading to cell death.
  • alkylating agents include, but are not limited to, nitrogen mustards such as cyclophosphamide, melphalan, and chlorambucil; alkyl sulfonates such as busulfan; nitrosoureas such as carmustine; and triazenes such as dacarbazine.
  • Cyclophosphamide 2-[bis(2-chloroethyl)amino]tetrahydro-2H- 1 ,3 ,2- oxazaphosphorine 2-oxide monohydrate, is commercially available as an injectable solution or tablets as CYTOXAN®. Cyclophosphamide is indicated as a single agent or in combination with other chemotherapeutic agents, in the treatment of malignant lymphomas, multiple myeloma, and leukemias. Alopecia, nausea, vomiting and leukopenia are the most common dose limiting side effects of cyclophosphamide.
  • Melphalan 4-[bis(2-chloroethyl)amino]-L-phenylalanine, is commercially available as an injectable solution or tablets as ALKERAN®. Melphalan is indicated for the palliative treatment of multiple myeloma and non-resectable epithelial carcinoma of the ovary. Bone marrow suppression is the most common dose limiting side effect of melphalan. Chlorambucil, 4-[bis(2-chloroethyl)amino]benzenebutanoic acid, is commercially available as LEUKERAN® tablets.
  • Chlorambucil is indicated for the palliative treatment of chronic lymphatic leukemia, and malignant lymphomas such as lymphosarcoma, giant follicular lymphoma, and Hodgkin's disease. Bone marrow suppression is the most common dose limiting side effect of chlorambucil. Busulfan, 1 ,4-butanediol dimethanesulfonate, is commercially available as
  • Busulfan is indicated for the palliative treatment of chronic myelogenous leukemia. Bone marrow suppression is the most common dose limiting side effects of busulfan.
  • Carmustine, l,3-[bis(2-chloroethyl)-l -nitrosourea, is commercially available as single vials of lyophilized material as BiCNU®.
  • Carmustine is indicated for the palliative treatment as a single agent or in combination with other agents for brain tumors, multiple myeloma, Hodgkin's disease, and non-Hodgkin's lymphomas. Delayed myelosuppression is the most common dose limiting side effects of carmustine.
  • dacarbazine 5-(3,3-dimethyl-l-triazeno)-imidazole-4-carboxamide, is commercially available as single vials of material as DTIC-Dome®.
  • dacarbazine is indicated for the treatment of metastatic malignant melanoma and in combination with other agents for the second line treatment of Hodgkin's Disease. Nausea, vomiting, and anorexia are the most common dose limiting side effects of dacarbazine.
  • Antibiotic anti-neoplasties are non-phase specific agents, which bind or intercalate with DNA. Typically, such action results in stable DNA complexes or strand breakage, which disrupts ordinary function of the nucleic acids leading to cell death.
  • antibiotic anti-neoplastic agents include, but are not limited to, actinomycins such as dactinomycin, anthrocyclins such as daunorubicin and doxorubicin; and bleomycins.
  • Dactinomycin also know as Actinomycin D, is commercially available in injectable form as COSMEGEN®. Dactinomycin is indicated for the treatment of Wilm's tumor and rhabdomyosarcoma. Nausea, vomiting, and anorexia are the most common dose limiting side effects of dactinomycin.
  • Daunorubicin (8S-cis-)-8-acetyl-10-[(3-amino-2,3,6-trideoxy- ⁇ -L-lyxo- hexopyranosyl)oxy]-7,8,9, 10-tetrahydro-6,8, 11 -trihydroxy- 1 -methoxy-5 , 12 naphthacenedione hydrochloride, is commercially available as a liposomal injectable form as DAUNOXOME® or as an injectable as CERUBIDINE®. Daunorubicin is indicated for remission induction in the treatment of acute nonlymphocytic leukemia and advanced HIV associated Kaposi's sarcoma.
  • Doxorubicin is primarily indicated for the treatment of acute lymphoblastic leukemia and acute myeloblastic leukemia, but is also a useful component in the treatment of some solid tumors and lymphomas. Myelosuppression is the most common dose limiting side effect of doxorubicin.
  • Bleomycin a mixture of cytotoxic glycopeptide antibiotics isolated from a strain of Streptomyces verticillus, is commercially available as BLENOXANE®. Bleomycin is indicated as a palliative treatment, as a single agent or in combination with other agents, of squamous cell carcinoma, lymphomas, and testicular carcinomas. Pulmonary and cutaneous toxicities are the most common dose limiting side effects of bleomycin.
  • Topoisomerase II inhibitors include, but are not limited to, epipodophyllotoxins.
  • Epipodophyllotoxins are phase specific anti-neoplastic agents derived from the mandrake plant. Epipodophyllotoxins typically affect cells in the S and G 2 phases of the cell cycle by forming a ternary complex with topoisomerase II and DNA causing DNA strand breaks. The strand breaks accumulate and cell death follows.
  • Examples of epipodophyllotoxins include, but are not limited to, etoposide and teniposide.
  • Etoposide 4'-demethyl-epipodophyllotoxin 9[4,6-0-(R )-ethylidene- ⁇ -D- glucopyranoside]
  • VePESID® an injectable solution or capsules
  • VP-16 an injectable solution or capsules
  • Etoposide is indicated as a single agent or in combination with other chemotherapy agents in the treatment of testicular and non-small cell lung cancers. Myelosuppression is the most common side effect of etoposide. The incidence of leucopenia tends to be more severe than thrombocytopenia.
  • Teniposide 4'-demethyl-epipodophyllotoxin 9[4,6-0-(R )-thenylidene- ⁇ -D- glucopyranoside], is commercially available as an injectable solution as VUM ON® and is commonly known as VM-26.
  • Teniposide is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia in children. Myelosuppression is the most common dose limiting side effect of teniposide.
  • Teniposide can induce both leucopenia and thrombocytopenia.
  • Antimetabolite neoplastic agents are phase specific anti-neoplastic agents that act at
  • S phase DNA synthesis of the cell cycle by inhibiting DNA synthesis or by inhibiting purine or pyrimidine base synthesis and thereby limiting DNA synthesis. Consequently, S phase does not proceed and cell death follows.
  • antimetabolite anti-neoplastic agents include, but are not limited to, fluorouracil, methotrexate, cytarabine, mecaptopurine, thioguanine, and gemcitabine.
  • 5 -fluorouracil 5-fluoro-2,4- (1H,3H) pyrimidinedione
  • fluorouracil is commercially available as fluorouracil.
  • Administration of 5 -fluorouracil leads to inhibition of thymidylate synthesis and is also incorporated into both RNA and DNA. The result typically is cell death.
  • 5 -fluorouracil is indicated as a single agent or in combination with other chemotherapy agents in the treatment of carcinomas of the breast, colon, rectum, stomach and pancreas. Myelosuppression and mucositis are dose limiting side effects of 5- fluorouracil.
  • Other fluoropyrimidine analogs include 5-fluoro deoxyuridine (floxuridine) and 5-fluorodeoxyuridine monophosphate.
  • Cytarabine 4-amino-l- ⁇ -D-arabinofuranosyl-2 (lH)-pyrimidinone, is commercially available as CYTOSAR-U® and is commonly known as Ara-C. It is believed that cytarabine exhibits cell phase specificity at S-phase by inhibiting DNA chain elongation by terminal incorporation of cytarabine into the growing DNA chain. Cytarabine is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia. Other cytidine analogs include 5-azacytidine and 2',2'- difluorodeoxycytidine (gemcitabine).
  • Cytarabine induces leucopenia, thrombocytopenia, and mucositis.
  • Mercaptopurine 1 ,7-dihydro-6H-purine-6-thione monohydrate, is commercially available as PURINETHOL®.
  • Mercaptopurine exhibits cell phase specificity at S-phase by inhibiting DNA synthesis by an as of yet unspecified mechanism.
  • Mercaptopurine is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia. Myelosuppression and gastrointestinal mucositis are expected side effects of mercaptopurine at high doses.
  • a useful mercaptopurine analog is azathioprine.
  • Thioguanine 2-amino-l,7-dihydro-6H-purine-6-thione, is commercially available as TABLOID®.
  • Thioguanine exhibits cell phase specificity at S-phase by inhibiting DNA synthesis by an as of yet unspecified mechanism.
  • Thioguanine is indicated as a single agent or in combination with other chemotherapy agents in the treatment of acute leukemia.
  • Myelosuppression including leucopenia, thrombocytopenia, and anemia, is the most common dose limiting side effect of thioguanine administration. However, gastrointestinal side effects occur and can be dose limiting.
  • Other purine analogs include pentostatin, erythrohydroxynonyladenine, fludarabine phosphate, and cladribine.
  • Gemcitabine 2'-deoxy-2', 2'-difluorocytidine monohydrochloride ( ⁇ -isomer), is commercially available as GEMZ AR®. Gemcitabine exhibits cell phase specificity at S- phase and by blocking progression of cells through the Gl /S boundary. Gemcitabine is indicated in combination with cisplatin in the treatment of locally advanced non-small cell lung cancer and alone in the treatment of locally advanced pancreatic cancer. Myelosuppression, including leucopenia, thrombocytopenia, and anemia, is the most common dose limiting side effect of gemcitabine administration.
  • Methotrexate N-[4[[(2,4-diamino-6-pteridinyl) methyljmethylamino] benzoyl]-L- glutamic acid, is commercially available as methotrexate sodium. Methotrexate exhibits cell phase effects specifically at S-phase by inhibiting DNA synthesis, repair or replication through the inhibition of dyhydrofolic acid reductase which is required for synthesis of purine nucleotides and thymidylate.
  • Methotrexate is indicated as a single agent or in combination with other chemotherapy agents in the treatment of choriocarcinoma, meningeal leukemia, non-Hodgkin's lymphoma, and carcinomas of the breast, head, neck, ovary and bladder.
  • Myelosuppression (leucopenia, thrombocytopenia, and anemia) and mucositis are expected side effect of methotrexate administration.
  • Camptothecins including, camptothecin and camptothecin derivatives are available or under development as Topoisomerase I inhibitors. Camptothecins cytotoxic activity is believed to be related to its Topoisomerase I inhibitory activity. Examples of camptothecins include, but are not limited to irinotecan, topotecan, and the various optical forms of 7-(4-methylpiperazino-methylene)-10,l l-ethylenedioxy-20-camptothecin described below.
  • Irinotecan HCl, (4S)-4,l l-diethyl-4-hydroxy-9-[(4-piperidinopiperidino) carbonyloxy]-lH-pyrano[3',4',6,7]indolizino[l,2-b]quinoline-3,14(4H,12H)-dione hydrochloride, is commercially available as the injectable solution CAMPTOSAR®.
  • Irinotecan is a derivative of camptothecin which binds, along with its active metabolite SN-38, to the topoisomerase I - DNA complex. It is believed that cytotoxicity occurs as a result of irreparable double strand breaks caused by interaction of the topoisomerase I : DNA : irintecan or SN-38 ternary complex with replication enzymes. Irinotecan is indicated for treatment of metastatic cancer of the colon or rectum. The dose limiting side effects of irinotecan HCl are myelosuppression, including neutropenia, and GI effects, including diarrhea.
  • Topotecan HCl (S)-10-[(dimethylamino)methyl]-4-ethyl-4,9-dihydroxy-lH- pyrano [3 ' ,4 ' ,6,7]indolizino [ 1 ,2-b] quinoline-3 , 14-(4H, 12H)-dione monohydrochloride, is commercially available as the injectable solution HYCAMTIN®.
  • Topotecan is a derivative of camptothecin which binds to the topoisomerase I - DNA complex and prevents religation of singles strand breaks caused by Topoisomerase I in response to torsional strain of the DNA molecule.
  • Topotecan is indicated for second line treatment of metastatic carcinoma of the ovary and small cell lung cancer.
  • the dose limiting side effect of topotecan HCl is myelosuppression, primarily neutropenia.
  • camptothecin derivative of formula A following, currently under development, including the racemic mixture (R, S) form as well as the R and S enantiomers:
  • Hormones and hormonal analogues are useful compounds for treating cancers in which there is a relationship between the hormone(s) and growth or lack of growth of the cancer.
  • hormones and hormonal analogues useful in cancer treatment include, but are not limited to, adrenocorticosteroids such as prednisone and prednisolone which are useful in the treatment of malignant lymphoma and acute leukemia in children ; aminoglutethimide and other aromatase inhibitors such as anastrozole, letrazole, vorazole, and exemestane useful in the treatment of adrenocortical carcinoma and hormone dependent breast carcinoma containing estrogen receptors; progestrins such as megestrol acetate useful in the treatment of hormone dependent breast cancer and endometrial carcinoma; estrogens, androgens, and anti-androgens such as flutamide, nilutamide, bicalutamide, cyproterone acetate and 5 ⁇ -reductases such as
  • GnRH gonadotropin-releasing hormone
  • LH leutinizing hormone
  • FSH follicle stimulating hormone
  • Signal transduction pathway inhibitors are those inhibitors, which block or inhibit a chemical process which evokes an intracellular change. As used herein this change is cell proliferation or differentiation.
  • Signal tranduction inhibitors useful in the present invention include inhibitors of receptor tyrosine kinases, non-receptor tyrosine kinases, SH2/SH3domain blockers, serine/threonine kinases, phosphotidyl inositol-3 kinases, myoinositol signaling, and Ras oncogenes.
  • protein tyrosine kinases catalyse the phosphorylation of specific tyrosyl residues in various proteins involved in the regulation of cell growth.
  • protein tyrosine kinases can be broadly classified as receptor or non-receptor kinases.
  • Receptor tyrosine kinases are transmembrane proteins having an extracellular ligand binding domain, a transmembrane domain, and a tyrosine kinase domain. Receptor tyrosine kinases are involved in the regulation of cell growth and are generally termed growth factor receptors. Inappropriate or uncontrolled activation of many of these kinases, i.e. aberrant kinase growth factor receptor activity, for example by over-expression or mutation, has been shown to result in uncontrolled cell growth. Accordingly, the aberrant activity of such kinases has been linked to malignant tissue growth. Consequently, inhibitors of such kinases could provide cancer treatment methods.
  • Growth factor receptors include, for example, epidermal growth factor receptor (EGFr), platelet derived growth factor receptor (PDGFr), erbB2, erbB4, vascular endothelial growth factor receptor (VEGFr), tyrosine kinase with immunoglobulin-like and epidermal growth factor homology domains (TIE-2), insulin growth factor -I (IGFI) receptor, macrophage colony stimulating factor (cfms), BTK, ckit, cmet, fibroblast growth factor (FGF) receptors, Trk receptors (TrkA, TrkB, and TrkC), ephrin (eph) receptors, and the RET protooncogene.
  • EGFr epidermal growth factor receptor
  • PDGFr platelet derived growth factor receptor
  • erbB2 erbB4
  • VEGFr vascular endothelial growth factor receptor
  • TIE-2 vascular endothelial growth factor receptor
  • TIE-2 t
  • inhibitors of growth receptors include ligand antagonists, antibodies, tyrosine kinase inhibitors and anti-sense oligonucleotides.
  • Growth factor receptors and agents that inhibit growth factor receptor function are described, for instance, in Kath, John C, Exp. Opin. Ther. Patents (2000) 10(6):803-818; Shawver et al DDT VoI 2, No. 2 February 1997; and Lofts, F. J. et al, "Growth factor receptors as targets", New Molecular Targets for Cancer Chemotherapy, ed. Workman, Paul and Kerr, David, CRC press 1994, London.
  • Non-receptor tyrosine kinases which are not growth factor receptor kinases are termed nonreceptor tyrosine kinases.
  • Non-receptor tyrosine kinases useful in the present invention include cSrc, Lck, Fyn, Yes, Jak, cAbl, FAK (Focal adhesion kinase), Brutons tyrosine kinase, and Bcr-Abl.
  • Such nonreceptor kinases and agents which inhibit non-receptor tyrosine kinase function are described in Sinh, S. and Corey, S. J., (1999) Journal of Hematotherapy and Stem Cell Research 8 (5): 465 - 80; and Bolen, J.B., Brugge, J.S., (1997) Annual review of
  • SH2/SH3 domain blockers are agents that disrupt SH2 or SH3 domain binding in a variety of enzymes or adaptor proteins including, PI3-K p85 subunit, Src family kinases, adaptor molecules (She, Crk, Nek, Grb2) and Ras-GAP.
  • SH2/SH3 domains as targets for anti-cancer drugs are discussed in Smithgall, T. E. (1995), Journal of Pharmacological and
  • Inhibitors of Serine/Threonine Kinases including MAP kinase cascade blockers which include blockers of Raf kinases (rafk), Mitogen or Extracellular Regulated Kinase (MEKs), and Extracellular Regulated Kinases (ERKs); and Protein kinase C family member blockers including blockers of PKCs (alpha, beta, gamma, epsilon, mu, lambda, iota, zeta).
  • IkB kinase family IKKa, IKKb
  • PKB family kinases AKT kinase family members
  • TGF beta receptor kinases TGF beta receptor kinases.
  • Serine/Threonine kinases and inhibitors thereof are described in Yamamoto, T., Taya, S., Kaibuchi, K., (1999), Journal of Biochemistry. 126 (5) 799-803; Brodt, P, Samani, A., and Navab, R. (2000), Biochemical
  • Patent No. 6,268,391 and Martinez-Iacaci, L., et al, Int. J. Cancer (2000), 88(1), 44-52.
  • Inhibitors of Phosphotidyl inositol-3 Kinase family members including blockers of PI3- kinase, ATM, DNA-PK, and Ku are also useful in the present invention.
  • Such kinases are discussed in Abraham, R.T. (1996), Current Opinion in Immunology. 8 (3) 412-8; Canman, C.E., Lim, D.S. (1998), Oncogene 17 (25) 3301-3308; Jackson, S.P. (1997), International Journal of Biochemistry and Cell Biology. 29 (7):935-8; and Zhong, H. et al, Cancer res, (2000) 60(6), 1541-1545.
  • Myo-inositol signaling inhibitors such as phospho lipase C blockers and Myoinositol analogues.
  • signal inhibitors are described in Powis, G., and Kozikowski A., (1994) New Molecular Targets for Cancer Chemotherapy ed., Paul Workman and David Kerr, CRC press 1994, London.
  • Ras Oncogene Another group of signal transduction pathway inhibitors are inhibitors of Ras Oncogene.
  • Such inhibitors include inhibitors of farnesyltransferase, geranyl-geranyl transferase, and CAAX proteases as well as anti-sense oligonucleotides, ribozymes and immunotherapy.
  • Such inhibitors have been shown to block ras activation in cells containing wild type mutant ras , thereby acting as antiproliferation agents.
  • Ras oncogene inhibition is discussed in Scharovsky, O. G., Rozados, V.R., Gervasoni, S.I. Matar, P. (2000), Journal of Biomedical Science. 7(4) 292-8; Ashby, M.N. (1998), Current Opinion in Lipidology. 9 (2) 99 - 102; and BioChim. Biophys. Acta, (19899) 1423(3): 19-30.
  • antibody antagonists to receptor kinase ligand binding may also serve as signal transduction inhibitors.
  • This group of signal transduction pathway inhibitors includes the use of humanized antibodies to the extracellular ligand binding domain of receptor tyrosine kinases.
  • Imclone C225 EGFR specific antibody see Green, M. C. et al, Monoclonal Antibody Therapy for Solid Tumors, Cancer Treat.
  • Herceptin ® erbB2 antibody see Tyrosine Kinase Signalling in Breast cance ⁇ erbB Family Receptor Tyrosine Kniases, Breast cancer Res., 2000, 2(3), 176-183
  • 2CB VEGFR2 specific antibody see Brekken, R. A. et al, Selective Inhibition of VEGFR2 Activity by a monoclonal Anti-VEGF antibody blocks tumor growth in mice, Cancer Res. (2000) 60, 5117-5124).
  • Non-receptor kinase angiogenesis inhibitors may also find use in the present invention.
  • Inhibitors of angiogenesis related VEGFR and TIE2 are discussed above in regard to signal transduction inhibitors (both receptors are receptor tyrosine kinases).
  • Angiogenesis in general is linked to erbB2/EGFR signaling since inhibitors of erbB2 and EGFR have been shown to inhibit angiogenesis, primarily VEGF expression.
  • the combination of an erbB2/EGFR inhibitor with an inhibitor of angiogenesis makes sense.
  • non-receptor tyrosine kinase inhibitors may be used in combination with the EGFR/erbB2 inhibitors of the present invention.
  • anti-VEGF antibodies which do not recognize VEGFR (the receptor tyrosine kinase), but bind to the ligand; small molecule inhibitors of integrin (alpha v beta 3 ) that will inhibit angiogenesis; endostatin and angiostatin (non-RTK) may also prove useful in combination with the disclosed erb family inhibitors.
  • VEGFR the receptor tyrosine kinase
  • small molecule inhibitors of integrin alpha v beta 3
  • endostatin and angiostatin non-RTK
  • Agents used in immunotherapeutic regimens may also be useful in combination with the compounds of formula (I).
  • immunologic strategies to generate an immune response against erbB2 or EGFR. These strategies are generally in the realm of tumor vaccinations.
  • the efficacy of immunologic approaches may be greatly enhanced through combined inhibition of erbB2/EGFR signaling pathways using a small molecule inhibitor. Discussion of the immunologic/tumor vaccine approach against erbB2/EGFR are found in Reilly RT et al. (2000), Cancer Res. 60: 3569-3576; and Chen Y, Hu D, Eling DJ, Robbins J, and Kipps TJ. (1998), Cancer Res. 58: 1965-1971.
  • Agents used in proapoptotic regimens may also be used in the combination of the present invention.
  • Members of the Bcl-2 family of proteins block apoptosis. Upregulation of bcl-2 has therefore been linked to chemoresistance.
  • EGF epidermal growth factor
  • Cell cycle signalling inhibitors inhibit molecules involved in the control of the cell cycle.
  • a family of protein kinases called cyclin dependent kinases (CDKs) and their interaction with a family of proteins termed cyclins controls progression through the eukaryotic cell cycle. The coordinate activation and inactivation of different cyclin/CDK complexes is necessary for normal progression through the cell cycle.
  • CDKs cyclin dependent kinases
  • Several inhibitors of cell cycle signalling are under development. For instance, examples of cyclin dependent kinases, including CDK2, CDK4, and CDK6 and inhibitors for the same are described in, for instance, Rosania et al, Exp. Opin. Ther. Patents (2000) 10(2):215-230.
  • the cancer treatment method of the claimed invention includes the co-administration a compound of formula I or a pharmaceutically acceptable salt, hydrate, solvate or pro-drug thereof and at least one anti-neoplastic agent, such as one selected from the group consisting of anti-microtubule agents, platinum coordination complexes, alkylating agents, antibiotic agents, topoisomerase II inhibitors, antimetabolites, topoisomerase I inhibitors, hormones and hormonal analogues, signal transduction pathway inhibitors, non-receptor tyrosine kinase angiogenesis inhibitors, immunotherapeutic agents, proapoptotic agents, and cell cycle signaling inhibitors.
  • anti-neoplastic agent such as one selected from the group consisting of anti-microtubule agents, platinum coordination complexes, alkylating agents, antibiotic agents, topoisomerase II inhibitors, antimetabolites, topoisomerase I inhibitors, hormones and hormonal analogues, signal transduction pathway inhibitors, non-receptor tyrosine
  • the pharmaceutically active compounds of the present invention are active as PI3 kinase inhibitors, particularly the compounds that modulate/inhibit PI3K ⁇ , either selectively or in conjunction with one or more of PI3K ⁇ , PI3K ⁇ , or PI3K ⁇ , they exhibit therapeutic utility in treating a disease state selected from: autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, cancer, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, sperm motility, transplantation rejection, graft rejection and lung injuries.
  • a disease state selected from: autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, cancer, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, sperm motility, transplantation rejection, graft rejection and lung injuries.
  • a disease state selected from: autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, cancer, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, sperm motility, transplantation rejection, graft rejection or lung injuries
  • co-administering and derivatives thereof as used herein is meant either simultaneous administration or any manner of separate sequential administration of a PB kinase inhibiting compound, as described herein, and a further active ingredient or ingredients, known to be useful in the treatment of autoimmune disorders, inflammatory diseases, cardiovascular diseases, cancer, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, sperm motility, transplantation rejection, graft rejection and/or lung injuries.
  • PBK ⁇ PB kinases
  • the exemplified compounds were tested and found active against PBK ⁇ .
  • the ICso's ranged from about 1 nM to 10 ⁇ M. The majority of the compounds were under 500 nM; the more active compounds were under 100 nM, the most active compounds can be found under 10 nM.
  • Example 2 The compound of Example 2 was tested generally according to the assays described herein and in at least one experimental run exhibited a IC50 value: equal to 100 nM against PBK ⁇ .
  • Example 5 The compound of Example 5 was tested generally according to the assays described herein and in at least one experimental run exhibited a IC50 value: equal to 32 nM against PBK ⁇ .
  • Example 9 The compound of Example 9 was tested generally according to the assays described herein and in at least one experimental run exhibited a IC50 value: equal to 25 nM against PBK ⁇ .
  • Example 42 The compound of Example 42 was tested generally according to the assays described herein and in at least one experimental run exhibited a IC50 value: equal to 100 nM against PBK ⁇ .
  • the PB -Kinase assay has been developed and optimized from a kit produced by Upstate (Millipore). Briefly, this kit contains a biotinylated PIP3 which forms a HTRF (homogeneous time-resolved fluorescence energy transfer) complex when mixed with a Europium labeled anti-GST monoclonal antibody, a GST tagged pleckstrin homology (PH) domain, and Streptavidin-Allophycocyanin (APC).
  • the unlabeled PIP3 produced by PI 3- Kinase activity displaces biotin-PIP3 from the complex resulting in a loss of energy transfer and thus a decrease in signal.
  • Millipore, PI 3 -Kinase (human) HTRFTM Assay technical document associated with catalog# 33-017
  • the wortmannin control is dispensed from a Greiner polypropylene 120 ⁇ L mother plate containing > 20 ⁇ L of ImM wortmannin into the assay plate via the hummingbird or comparable instrument in wells 18 A, C, E, G, I, K, M, O (0.1 ⁇ L of ImM wortmannin in 100% DMSO).
  • the PIP3 control is dispensed into the plate manually via a matrix pipettor, l ⁇ L of 200 ⁇ M PIP3 in IX Reaction buffer to wells 18 B, D, F, H, J, L, N, P.
  • the PI3 -Kinase assay has been developed and optimized from a kit produced by Upstate (Millipore).
  • the assay kit (cat: 33-017) contains seven reagents: 1) 4X Reaction Buffer, 2) PIP2 (ImM), 3) Stop A, 4) Stop B, 5) Detection Mix A, 6) Detection Mix B, 7) Detection Mix C.
  • PBKinase prepared in-house
  • 4X PI3K Detection Buffer Millipore
  • dithiothreitol Sigma, D-5545
  • Adenosine-5 '-triphosphate ATP, Sigma, A-6419
  • PIP3 l,2-dioctanoyl-sn-glycero-3- [phosphoinositil-3,4,5-triphosphate] tetraammonium salt (Avanti polar lipids, 850186P)
  • DMSO Sigma, 472301)
  • Wortmannin Sigma, W-1628
  • IX PBKinase Reaction Buffer by diluting stock 1 :4 with de-ionized water, freshly prepared DTT is added at a final concentration of 5 mM on the day of use.
  • Enzyme addition and compound preincubation is initiated by the addition of 2.5 ⁇ L of 2X enzyme solution, PBK alpha in IX reaction buffer, to all wells using a Multidrop Combi. Plates are incubated at room temperature for 15 minutes. Substrate addition and reaction initiation is completed by the addition of 2.5 ⁇ L of 2X substrate solution, PIP2 and ATP in IX reaction buffer, to all wells using a Multidrop Combi. Plates are incubated at room temperature for one hour.
  • Reactions are quenched by the addition of 2.5 ⁇ L of stop solution (mix Stop A and Stop B in a ratio of 5:1, respectively, i.e.: for a 6000 ⁇ L total volume, mix 5000 ⁇ L Stop A and lOOO ⁇ L Stop B) to all wells using the Multidrop Combi.
  • stop solution mix Stop A and Stop B in a ratio of 5:1, respectively, i.e.: for a 6000 ⁇ L total volume, mix 5000 ⁇ L Stop A and lOOO ⁇ L Stop B
  • the loss of PI3 -kinase signal due to product formation leading to biotinylated-PIP3 displacement is nonlinear with respect to both increasing product and time. This non- linear detection will impact accuracy of IC50 calculations; therefore, there is a need for a correction factor or back calculation to obtain a more accurate IC50.
  • the correction varies based on the standard wells of the assay plates (column 6 and 18) of product formed in each assay plate.
  • %inhibition min + (max-min)/(l + ([inhibitor]/IC50) ⁇ n) where min is the %inhibition with no inhibitor (typically 0%), max is the %inhibition with saturating inhibitor (typically 100%), and n is the Hill slope (typically 1).
  • pIC50 -log(IC50)
  • SPA imaging beads are microspheres containing scintillant which emit light in the red region of the visible spectrum. As a result, these beads are ideally suited to use with a CCD imager such as the Viewlux.
  • the Leadseeker beads used in this system are polystyrene beads that have been coupled with polyethyleneimine. When added to the assay mixture, the beads absorb both the substrate (PIP2) and product (PIP3). Adsorbed P 33 -PIP3 will cause an increase in signal, measured as ADUs (analog to digital units).
  • This protocol details the use of the PEI-PS Leadseeker beads for assays using His-pl 10/p85 PBK alpha.
  • Solid compounds are typically plated with 0.1 ⁇ l of 100% DMSO in all wells (except column 6 and 18) of a 384-well, flat bottom, low volume plate (Greiner 784075).
  • the compounds are serially diluted (3-fold in 100% DMSO) across the plate from column 1 to column 12 and column 13 to column 24 and leave column 6 and 18 containing only DMSO to yield 1 lconcentraions for each test compound.
  • the assay buffer contains MOPS (pH 6.5), CHAPS, and DTT.
  • PI3K alpha and PIP2 L- alpha-D-myo-Phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2]3-O-phospho linked, D(+)- sn-l,2-di-O-octanoylglyceryl, CellSignals # 901) are mixed and incubated in the plate with compound for 30min prior to starting the reaction with the addition of P 33 -ATP and MgCl 2 (reagents added using Zoom). Enzyme-free wells (column 18) are typically done to determine the low control.
  • PEI-PS Leadseeker beads in PBS/EDTA/CHAPS are added (by Multidrop) to quench the reaction, and the plates are allowed to incubate for at least one hour (typically overnight) before centrifugation.
  • the signal is determined using a Viewlux detector and is then imported into curve fitting software (Activity Base) for construction of concentration response curves.
  • the percent inhibition of activity was calculated relative to high controls (Cl, 0.1 ⁇ l DMSO in column 6, rows A-P)) and low controls (C2, 5 ⁇ l of 40 uM PIP2 in buffer in column 18, rows A-P) using, 1OO*(1-(U1-C2)/(C1-C2)).
  • the IC50 values were converted to pIC50 values, i.e., -log IC50 in Molar concentration.
  • Block MSD plates o Make 2OmL 3% blocking solution/plate (600mg blocker A in 2OmL WB), add 150ul/well and incubate at RT for at least 1 hr
  • AKT duplex assay o Wash plates (4x with 200ul/well WB in plate washer); tap plates on paper towel to blot o Add 60ul of lysates/well, incubate on shaker at RT for lhr o During incubation prepare detection Ab (3mL/plate; 2mL WB and ImL blocking solution w/ Ab at 1OnM); repeat wash step as above o Add 25ul of Ab/well, incubate on shaker at RT for lhr; repeat wash step as above o Add 150ul/well Ix Read Buffer (dilute 4x stock in ddH2O, 20mL/plate), read immediately
  • BT474, HCC 1954 and T-47D (human breast) were cultured in RPMI- 1640 containing 10% fetal bovine serum at 37 0 C in 5% CO 2 incubator.
  • Cells were split into T75 flask (Falcon #353136) two to three days prior to assay set up at density which yields approximately 70-80% confluence at time of harvest for assay.
  • Cells were harvested using 0.25% trypsin-EDTA (Sigma #4049). Cell counts were performed on cell suspension using Trypan Blue exclusion staining. Cells were then plated in 384 well black flat bottom polystyrene (Greiner #781086) in 48 ⁇ l of culture media per well at 1,000 cells/well.
  • test compounds were added the following day.
  • the test compounds were prepared in clear bottom polypropylene 384 well plates (Greiner#781280) with consecutive two fold dilutions. 4 ⁇ l of these dilutions were added to 105 ⁇ l culture media, after mixing the solution, 2 ⁇ l of these dilutions were added into each well of the cell plates. The final concentration of DMSO in all wells was 0.15%. Cells were incubated at 37 0 C, 5% CO 2 for 72 hours.
  • the pharmaceutically active compounds within the scope of this invention are useful as PI3 Kinase inhibitors in mammals, particularly humans, in need thereof.
  • the present invention therefore provides a method of treating diseases associated with PI3 kinase inhibition, particularly: autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, cancer, sperm motility, transplantation rejection, graft rejection and lung injuries and other conditions requiring PI3 kinase modulation/inhibition, which comprises administering an effective compound of Formula (I) or a pharmaceutically acceptable salt, hydrate, solvate or pro-drug thereof.
  • the compounds of Formula (I) also provide for a method of treating the above indicated disease states because of their ability to act as PI3 inhibitors.
  • the drug may be administered to a patient in need thereof by any conventional route of administration, including, but not limited to, intravenous, intramuscular, oral, subcutaneous, intradermal, and parenteral.
  • the pharmaceutically active compounds of the present invention are incorporated into convenient dosage forms such as capsules, tablets, or injectable preparations.
  • Solid or liquid pharmaceutical carriers are employed.
  • Solid carriers include, starch, lactose, calcium sulfate dihydrate, terra alba, sucrose, talc, gelatin, agar, pectin, acacia, magnesium stearate, and stearic acid.
  • Liquid carriers include syrup, peanut oil, olive oil, saline, and water.
  • the carrier or diluent may include any prolonged release material, such as glyceryl monostearate or glyceryl distearate, alone or with a wax.
  • the amount of solid carrier varies widely but, preferably, will be from about 25 mg to about 1 g per dosage unit.
  • the preparation will be in the form of a syrup, elixir, emulsion, soft gelatin capsule, sterile injectable liquid such as an ampoule, or an aqueous or nonaqueous liquid suspension.
  • the pharmaceutical preparations are made following conventional techniques of a pharmaceutical chemist involving mixing, granulating, and compressing, when necessary, for tablet forms, or mixing, filling and dissolving the ingredients, as appropriate, to give the desired oral or parenteral products.
  • Doses of the presently invented pharmaceutically active compounds in a pharmaceutical dosage unit as described above will be an efficacious, nontoxic quantity preferably selected from the range of 0.001 - 100 mg/kg of active compound, preferably 0.001 - 50 mg/kg.
  • the selected dose is administered preferably from 1-6 times daily, orally or parenterally.
  • Preferred forms of parenteral administration include topically, rectally, transdermally, by injection and continuously by infusion.
  • Oral dosage units for human administration preferably contain from 0.05 to 3500 mg of active compound. Oral administration, which uses lower dosages is preferred. Parenteral administration, at high dosages, however, also can be used when safe and convenient for the patient.
  • Optimal dosages to be administered may be readily determined by those skilled in the art, and will vary with the particular PB kinase inhibitor in use, the strength of the preparation, the mode of administration, and the advancement of the disease condition.
  • the method of this invention of inducing PB kinase inhibitory activity in mammals, including humans, comprises administering to a subject in need of such activity an effective PB kinase modulating/inhibiting amount of a pharmaceutically active compound of the present invention.
  • the invention also provides for the use of a compound of Formula (I) in the manufacture of a medicament for use as a PB kinase inhibitor.
  • the invention also provides for the use of a compound of Formula (I) in the manufacture of a medicament for use in therapy.
  • the invention also provides for the use of a compound of Formula (I) in the manufacture of a medicament for use in treating autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, cancer, sperm motility, transplantation rejection, graft rejection and lung injuries.
  • the invention also provides for a pharmaceutical composition for use as a PB inhibitor which comprises a compound of Formula (I) and a pharmaceutically acceptable carrier.
  • the invention also provides for a pharmaceutical composition for use in the treatment of autoimmune disorders, inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, allergy, asthma, pancreatitis, multiorgan failure, kidney diseases, platelet aggregation, cancer, sperm motility, transplantation rejection, graft rejection and lung injuries, which comprises a compound of Formula (I) and a pharmaceutically acceptable carrier. No unacceptable toxicological effects are expected when compounds of the invention are administered in accordance with the present invention.
  • the pharmaceutically active compounds of the present invention can be co-administered with further active ingredients, including compounds known to have utility when used in combination with a PB kinase inhibitor.
  • Quinoxalines such as represented by compounds of Formula I can be prepared from, for example, bromoquinoxalinols (2) which have been prepared in the literature (Journal of Medicinal Chemistry, 1981, 24( ⁇ ), 93-101).
  • bromoquinoxalinols such as compound 2 may be converted to a bromochloroquinoxaline such as compound 3 by for example, treatment with phosphorous oxychloride at elevated temperatures (typically 120 0 C).
  • the resulting chlorinated compound (3) may undergo a variety of coupling reactions as delineated by steps C, D or E.
  • the coupling step is for instance a nucleophilic displacement reaction such as for steps C or D
  • suitable nucleophiles such as amines, or alkoxides are commercially available or easily prepared by methods known to those skilled in the art.
  • such a displacement may be carried out at room temperature or further facilitated by heating to temperatures such as 70-100 0 C either in neat reagent or in a suitable polar solvent such as N,N'- dimethy formamide .
  • the coupling step to prepare compounds of formula 4 may be a transition metal (such as palladium) catalyzed cross-coupling reaction of an aryl or heteroaryl boronate ester or boronic acid with compound 3, such as in step E.
  • a transition metal such as palladium
  • An optionalrary coupling reaction such as a Suzuki cross-coupling depicted in step E can be acheived by treating compound 3 with an appropriate palladium catalyst (typically 1,1 '- bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane complex (1 :1)), in the presence of inorganic base (such as potassium carbonate, sodium carbonate or sodium bicabonate) and a suitable solvent (such as 1,4-dioxane or N,N'- dimethyformamide) at elevated temperatures (typically 100 0 C).
  • an appropriate palladium catalyst typically 1,1 '- bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane complex (1 :1)
  • inorganic base such as potassium carbonate, sodium carbonate or sodium bicabonate
  • a suitable solvent such as 1,4-dioxane or N,N'- dimethyformamide
  • the resulting compounds of formula (4) may undergo another palladium catalyzed coupling reaction as described above with an aryl or heteroaryl boronate ester or boronic acid to furnish compounds of the present invention such as 6.
  • a palladium catalyst such as 1,1 '- bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane complex (1 :1)
  • base such as potassium acetate
  • solvent such as dioxane
  • Such boronate esters can undergo typical Suzuki cross-coupling reactions (as described above) with approariate aryl or heteroaryl halides to provide compounds of the present invention, such as compound 6.
  • an amine or hydroxyl deprotecting step may be included. These include examples such as removal of a tosylsulfonyl protecting group with aqueous base (such as sodium hydroxide) in a polar solvent such as ethanol at elevated temperature (typically 5O 0 C) or the removal of a sily protecting group with fluoride ion or aqueous acid (such as acetic acid).
  • R2 N or O-node
  • Scheme 2 describes the removal of an amine protecting group when it is necessary to protect an amine before a coupling reaction (such as in steps C, D, E, G or H in Sheme 1 above ) can be carried out.
  • a Boc-protected amine such as compound 7 can be treated with trifluoroacetic acid in a suitable solvent (such as acetonitrile) at room temperature to furnish compounds of the present invention such as compound 8.
  • a tosylsulfonyl protected pyrazole amine such as compound 9 can be converted to the free pyrazole compound 10 by treating with aqueous base (such as aqueous sodium hydroxide) in a polar solvent, typically ethanol and elevated temperatures, for instance 5O 0 C.
  • silylethers may be deprotected using standard methods involving fluoride ion or aqueous acid, for instance acetic acid to furnish hydroxyl compounds such as 12.
  • a carbonyl containing compound such as 13 (Scheme 3) can be reduced to the corresponding alcohol using a hydride based reducing agent such as sodium borohydride in a polar protic solvent to furnish hydroxyl containing compounds such as 14.
  • Scheme 3
  • Pyrazoles such as compound 9 can be prepared from the Suzuki coupling of an aryl bromide such as compound 17 (Scheme 4) with compounds such as 5 (Scheme 1).
  • Compounds of formula 17 can be prepared from substituted pyrazoles such as 15, some of which are commercially available and the preparation of which is described in the literature (Inorganic Chemistry 2002, 41(1), 1889-1896).
  • the reaction was cooled to room temperature.
  • the reaction was diluted with ethyl acetate (100 mL) and water (50 mL), and the layers were separated.
  • the aqueous layer was back-extracted with ethyl acetate (20 mL).
  • the combined organic layers were washed with brine (30 mL), dried over magnesium sulfate and concentrated in vacuo to give a brown solid.
  • the solid was triturated in dichloromethane to give a yellow solid following vacuum filtration. The yellow solid was washed with methanol to give the title compound (92% pure).
  • reaction mixture was cooled to room temperature, diluted with water (50 mL) and brine (10 mL), and extracted with (3 x 50 mL) ethyl acetate. The combined organic layers were dried over sodium sulfate, filtered, and concentrated in vacuo.
  • An oral dosage form for administering the present invention is produced by filing a standard two piece hard gelatin capsule with the ingredients in the proportions shown in Table II, below.
  • An injectable form for administering the present invention is produced by stirring
  • sucrose, calcium sulfate dihydrate and an PBK inhibitor as shown in Table III below are mixed and granulated in the proportions shown with a 10% gelatin solution.
  • the wet granules are screened, dried, mixed with the starch, talc and stearic acid;, screened and compressed into a tablet.

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Abstract

Cette invention se rapporte à un procédé d'inhibition de l'activité/de la fonction des PI3-kinases utilisant des dérivés des quinoxalines. L'invention concerne également un procédé permettant de traiter une ou plusieurs des affections pathologiques suivantes : les maladies auto-immunes, les maladies inflammatoires, les maladies cardiovasculaires, les maladies neurodégénératives, l'allergie, l'asthme, la pancréatite, la défaillance multiviscérale, les maladies rénales, l'agrégation plaquettaire, le cancer, la motilité de sperme, le rejet de greffe, le rejet du greffon et les lésions pulmonaires, en administrant des dérivés des quinoxalines.
EP08797323A 2007-08-09 2008-08-07 Dérivés des quinoxalines utilisés comme inhibiteurs des pi3-kinases Withdrawn EP2173354A4 (fr)

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