- Identification of the Privileged Position in the Imidazo[1,2-a]pyridine Ring of Phosphonocarboxylates for Development of Rab Geranylgeranyl Transferase (RGGT) Inhibitors
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Members of the Rab GTPase family are master regulators of vesicle trafficking. When disregulated, they are associated with a number of pathological states. The inhibition of RGGT, an enzyme responsible for post-translational geranylgeranylation of Rab GTPases represents one way to control the activity of these proteins. Because the number of molecules modulating RGGT is limited, we combined molecular modeling with biological assays to ascertain how modifications of phosphonocarboxylates, the first reported RGGT inhibitors, rationally improve understanding of their structure-activity relationship. We have identified the privileged position in the core scaffold of the imidazo[1,2-a]pyridine ring, which can be modified without compromising compounds' potency. Thus modified compounds are micromolar inhibitors of Rab11A prenylation, simultaneously being inactive against Rap1A/Rap1B modification, with the ability to inhibit proliferation of the HeLa cancer cell line. These findings were rationalized by molecular docking, which recognized interaction of phosphonic and carboxylic groups as decisive in phosphonocarboxylate localization in the RGGT binding site.
- Ka?mierczak, Aleksandra,Kusy, Damian,Niinivehmas, Sanna P.,Gmach, Joanna,Joachimiak, ?ukasz,Pentik?inen, Olli T.,Gendaszewska-Darmach, Edyta,B?azewska, Katarzyna M.
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supporting information
p. 8781 - 8800
(2017/11/15)
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- Rapid, metal-free and aqueous synthesis of imidazo[1,2-: A] pyridine under ambient conditions
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A novel, rapid and efficient route to imidazo[1,2-a]pyridines under ambient, aqueous and metal-free conditions is reported. The NaOH-promoted cycloisomerisations of N-propargylpyridiniums give quantitative yield in a few minutes (10 g scale). A comparison of common green metrics to current routes showed clear improvements, with at least a one order of magnitude increase in space-time-yield.
- Chapman, Michael R.,Kwan, Maria H. T.,King, Georgina E.,Kyffin, Benjamin A.,Blacker, A. John,Willans, Charlotte E.,Nguyen, Bao N.
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supporting information
p. 4623 - 4627
(2016/09/04)
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- TETRAHYDROIMIDAZOPYRIDINE DERIVATIVES AS MODULATORS OF TNF ACTIVITY
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A series of substituted 5,6,7,8-tetrahydroimidazo[l,2-α]pyridine derivatives, being potent modulators of human TNFα activity, are accordingly of benefit in the treatment and/or prevention of various human ailments, including autoimmune and inflammatory di
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Page/Page column 94
(2015/06/25)
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- FUSED IMIDAZOLE AND PYRAZOLE DERIVATIVES AS MODULATORS OF TNF ACTIVITY
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A series of substituted benzimidazole, imidazo[1,2-a]pyridine and pyrazolo[1,5-a]pyridine derivatives, and analogues thereof, being potent modulators of human TNFα activity, are accordingly of benefit in the treatment and/or prevention of various human ailments, including autoimmune and inflammatory disorders; neurological and neurodegenerative disorders; pain and nociceptive disorders; cardiovascular disorders; metabolic disorders; ocular disorders; and oncological disorders.
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Page/Page column 99
(2015/06/25)
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- FUSED IMIDAZOLE AND PYRAZOLE DERIVATIVES AS MODULATORS OF TNF ACTIVITY
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A series of substituted benzimidazole, imidazo[1,2-α]pyridine and pyrazolo[1,5- α]pyridine derivatives, and analogues thereof, being potent modulators of human TNFα activity, are accordingly of benefit in the treatment and/or prevention of various human a
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Page/Page column 97
(2015/06/25)
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- IMIDAZOPYRIDINE DERIVATIVES AS MODULATORS OF TNF ACTIVITY
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A series of imidazo[l,2-a]pyridine derivatives of formula (I), being potent modulators of human TNFa activity, are accordingly of benefit in the treatment and/or prevention of various human ailments, including autoimmune and inflammatory disorders; neurological and neurodegenerative disorders; pain and nociceptive disorders; cardiovascular disorders; metabolic disorders; ocular disorders; and oncological disorders.
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Page/Page column 115
(2014/02/15)
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- HISTAMINE H3 INVERSE AGONISTS AND ANTAGONISTS AND METHODS OF USE THEREOF
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Provided herein are fused imidazolyl compounds, methods of synthesis, and methods of use thereof. The compounds provided herein are useful for the treatment, prevention, and/or management of various disorders, such as neurological disorders and metabolic disorders. Compounds provided herein inhibit the activity of histamine H3 receptors and modulate the release of various neurotransmitters, such as histamine, acetylcholine, norepinephrine, and dopamine (e.g. at the synapse). Pharmaceutical formulations containing the compounds and their methods of use are also provided herein.
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(2010/08/18)
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