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1.
J Med Chem ; 57(8): 3430-49, 2014 Apr 24.
Article in English | MEDLINE | ID: mdl-24641103

ABSTRACT

We describe the structural optimization of a lead compound 1 that exhibits dual inhibitory activities against FLT3 and CDK4. A series of pyrido[4',3':4,5]pyrrolo[2,3-d]pyrimidine derivatives was synthesized, and SAR analysis, using cell-based assays, led to the discovery of 28 (AMG 925), a potent and orally bioavailable dual inhibitor of CDK4 and FLT3, including many FLT3 mutants reported to date. Compound 28 inhibits the proliferation of a panel of human tumor cell lines including Colo205 (Rb(+)) and U937 (FLT3(WT)) and induced cell death in MOLM13 (FLT3(ITD)) and even in MOLM13 (FLT3(ITD, D835Y)), which exhibits resistance to a number of FLT3 inhibitors currently under clinical development. At well-tolerated doses, compound 28 leads to significant growth inhibition of MOLM13 xenografts in nude mice, and the activity correlates with inhibition of STAT5 and Rb phosphorylation.


Subject(s)
Cyclin-Dependent Kinase 4/antagonists & inhibitors , Heterocyclic Compounds, 3-Ring/chemical synthesis , Naphthyridines/chemical synthesis , Protein Kinase Inhibitors/chemical synthesis , fms-Like Tyrosine Kinase 3/antagonists & inhibitors , Animals , Cyclin-Dependent Kinase 6/antagonists & inhibitors , Cytochrome P-450 CYP3A , Cytochrome P-450 CYP3A Inhibitors , Dogs , Drug Discovery , Heterocyclic Compounds, 3-Ring/pharmacology , Humans , Macaca fascicularis , Naphthyridines/pharmacology , Protein Kinase Inhibitors/pharmacokinetics , Protein Kinase Inhibitors/pharmacology , Rats , Structure-Activity Relationship , U937 Cells , fms-Like Tyrosine Kinase 3/genetics
4.
Curr Med Chem ; 12(11): 1239-81, 2005.
Article in English | MEDLINE | ID: mdl-15974996

ABSTRACT

This review chronicles original literature dating back to 1992 outlining the applications of parallel synthesis and combinatorial chemistry to the synthesis of compound libraries focused towards specific superfamilies of molecular targets. Target families that have received significant literature coverage include kinases, proteases, nuclear hormone receptors and cell surface receptors, notably GPCRs.


Subject(s)
Drug Design , Drug Evaluation, Preclinical/methods , Enzyme Inhibitors/chemical synthesis , Enzyme Inhibitors/pharmacology , Protein Kinases/metabolism , Receptors, Cytoplasmic and Nuclear/metabolism , Receptors, G-Protein-Coupled/metabolism , Enzyme Inhibitors/chemistry , Humans , Receptors, Cytoplasmic and Nuclear/antagonists & inhibitors , Receptors, G-Protein-Coupled/antagonists & inhibitors
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