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Claims for Patent: 7,547,719

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Claims for Patent: 7,547,719

Title:3'-[(2z)-[1-(3,4-Dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4h-pyrazol-4-y- lidene]hy-drazino]-2'-hydroxy-[1,1'-piphenyl]-acid bis-(monoethanolamine)
Abstract:An improved thrombopoietin mimetic, the bis-(monoethanolamine) salt of 3'-[(2Z)-[1-(3,4-dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-- ylidene]hydrazino]-2'-hydroxy-[1,1'-biphenyl]-3-carboxylic acid.
Inventor(s): Moore; Stephen (Tonbridge, GB)
Assignee: SmithKline Beecham Corp. (Philadelphia, PA)
Application Number:10/515,304
Patent Claims: 1. The compound 3'-[(2Z)-[1-(3,4-dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-- ylidene]hydrazino]-2'-hydroxy-[1,1'-biphenyl]-3-carboxylic acid bis-(monoethanolamine).

2. A pharmaceutical composition comprising 3'-[(2Z)-[1-(3,4-dimethyiphenyl)- 1 ,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene]hydrazino]-2'-hydroxy-[1,1 '-biphenyll-3-carboxylic acid bis-(monoethanolamine) and a pharmaceutically acceptable carrier or diluent.

3. A method of treating thrombocytopenia in a human in need thereof which comprises administering to such human a therapeutically effective amount of the compound of claim 1.

4. The method of claim 3 wherein the compound is administered orally.

5. The method of claim 3 wherein the compound is administered parenterally.

6. A method of agonizing the TPO (Thrombopoietin) receptor in a human in need thereof which comprises administering to such human a therapeutically effective amount of the compound of claim 1.

7. A process for preparing a pharmaceutical composition containing a pharmaceutically acceptable carrier or diluent and a therapeutically effective amount of a compound of claim 1, which process comprises bringing the compound of claim 1 into association with the pharmaceutically acceptable carrier or diluent.

8. The method of claim 3 further comprising co-administering a therapeutically effective amount of an agent selected from the group consisting of: a colony stimulating factor, cytokine, chemokine, interleukin or cytokine receptor agonist or antagonist, soluble receptor, receptor agonist or antagonist antibody, and small molecules or peptides that act by the same mechanisms of one or more of the agents.

9. The method of claim 8 wherein the agent is selected from the group consisting of: granulocyte-colony stimulating factor (G-CSF), granulocyte monocyte colony stimulating factor (GM-CSF), Thrombopoietin (TPO), Macrophage colony-stimulating factor (M-CSF), Erythropoietin (EPO), Gro-beta, Interleukin 11 (IL-11), Stem cell factor (SCF), FMS-like tyrosine kinase 3 (FLT3)_ligand, leukemia inhibitory factor (LIF), Interleukin 3 (IL-3), Interleukin 6 (IL-6), Interleukin 1 (IL-1), Progenipoietin, novel erythroid-stimulating protein (NESP), Filgrastim r-metHuG-CSF (SD-01), Interleukin 8 (IL-8), Interleukin 5 (IL-5) and a biologically active derivative of any of the agents.

10. The pharmaceutical composition of claim 2 further comprising co-administering a therapeutically effective amount of an agent selected from the group consisting of: a colony stimulating factor, cytokine, chemokine, interleukin and cytokine receptor agonist.

11. The composition of claim 10 wherein the agent is selected from the group consisting of: granulocyte-colony stimulating factor (G-GSF), granulocyte monocyte colony stimulating factor (GM-CSF), Thrombopoietin (TPO), Macrophage colony-stimulating factor (M-CSF), Erythropoietin (EPO), Gro-beta, Interleukin 11 (IL-11), Stem cell factor (SCF),FMS-like tyrosine kinase 3 (FLT3)_ligand, leukemia inhibitory factor (LIF), Interleukin 3 (IL-3), Interleukin 6 (IL-6), Interleukin 1 (IL-1), Interleukin 5 (IL-5) and a biologically active derivative of any of and agents.

12. A method of claim 3 wherein said thrombocytopenia is due to myelosuppression caused by chemotherapy or radiation therapy.

13. A method of claim 3 wherein said thrombocytopenia is due to an organ transplant.

14. A method of claim 3 wherein said thrombocytopenia is due to bone marrow, stem cell, or liver transplant.

15. A method of claim 3 wherein said thrombocytopenia is due to idiopathic thrombocytopenia purpura (ITP).

16. A method of claim 3 wherein said thrombocytopenia is due to myelodysplastic syndromes (MDS), aplastic anemia or leukemia.

17. A method of claim 3 wherein said thrombocytopenia is due to viral, fungal, microbial or parasitic infection.

18. A method of claim 3 wherein said thrombocytopenia is due to liver dysfunction.

19. A method of claim 3 wherein said thrombocytopenia is due to surgical procedures.

20. A method of claim 3 wherein said thrombocytopenia is due to treatment with antiviral or antibiotic agents.

21. A process for preparing the compound of claim 1, which process comprises: i) dissolving 3'-[(2Z)-[1 -(3,4-dimethyiphenyl)- 1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene]hydrazino]-2'-hydroxy-[1,- 1 '-biphenyl]-3-carboxylic acid in an appropriate organic solvent, to form a solution; ii) adding two or more equivalents of ethanolamine to the solution; and iii) isolating the prepared compound.
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