Search Results - "Gupton, John T"
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1
The application of formyl group activation of bromopyrrole esters to formal syntheses of lycogarubin C, permethyl storniamide A and lamellarin G trimethyl ether
Published in Tetrahedron (30-12-2014)“…Lycogarubin C, permethyl storniamide A, and lamellarin G trimethyl ether are pyrrole containing, natural products, which exhibit interesting biological…”
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2
The application of vinylogous iminium salt derivatives to efficient formal syntheses of the marine alkaloids lamellarin G trimethyl ether and ningalin B
Published in Tetrahedron (30-05-2009)“…Studies directed at the synthesis of lamellarin G trimethyl ether and ningalin B via vinylogous iminium salt derivatives are described. The successful strategy…”
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3
Preparation of indole containing building blocks for the regiospecific construction of indole appended pyrazoles and pyrroles
Published in Tetrahedron (22-07-2013)“…The preparation of an indole appended vinamidinium salt, an indole appended vinylogous amide and an indole appended chloroenal are described. The subsequent…”
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4
Identification and characterization of a new tubulin-binding tetrasubstituted brominated pyrrole
Published in Molecular pharmacology (01-07-2007)“…We studied the mechanism of action of 3,5-dibromo-4-(3,4-dimethoxyphenyl)-1H-pyrrole-2-carboxylic acid ethyl ester (JG-03-14) and found that it is a potent…”
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5
The application of ( Z)-3-aryl-3-haloenoic acids to the synthesis of ( Z)-5-benzylidene-4-arylpyrrol-2(5 H)-ones
Published in Tetrahedron (20-11-2010)“…Studies directed at the synthesis of ( Z)-5-benzylidene-4-arylpyrrol-2(5 H)-ones from ( Z)-3-aryl-3-haloenoic acids are described. The successful strategy…”
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6
Effects of Poly‐Substituted Pyrroles on Pro‐Inflammatory Signaling in RAW264.7 Macrophages
Published in The FASEB journal (01-05-2022)“…Inflammation is the body’s natural means of protection against infection and the restoration to homeostasis after cellular and tissue damage from injury or…”
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How to Deal with Low-Resolution Target Structures: Using SAR, Ensemble Docking, Hydropathic Analysis, and 3D-QSAR to Definitively Map the αβ-Tubulin Colchicine Site
Published in Journal of medicinal chemistry (26-09-2013)“…αβ-Tubulin colchicine site inhibitors (CSIs) from four scaffolds that we previously tested for antiproliferative activity were modeled to better understand…”
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8
Application of vinylogous carbamates and vinylogous aminonitriles to the regiospecific synthesis of uniquely functionalized pyrroles and quinolones
Published in Tetrahedron (27-12-2018)“…Pyrroles and quinolones represent core structures, which are routinely found in both natural and synthetic bioactive substances. Consequently, the development…”
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Further studies on the application of vinylogous amides and β-halovinylaldehydes to the regiospecific synthesis of unsymmetrical, polyfunctionalized 2,3,4- and 1,2,3,4- substituted pyrroles
Published in Tetrahedron (24-05-2018)“…Highly functionalized pyrroles with appropriate regiochemical functionality represent an important class of marine natural products and potential drug…”
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10
The application of vinylogous iminium salt derivatives to the synthesis of Ningalin B hexamethyl ether
Published in Tetrahedron (01-01-2003)“…A vinylogous iminium salt derivative has been used to prepare a 2,3,4-trisubstituted pyrrole synthon in a regioselective, efficient and convenient manner. This…”
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11
Effects of a pyrrole-based, microtubule-depolymerizing compound on RAW 264.7 macrophages
Published in Chemico-biological interactions (25-02-2016)“…RAW 264.7 murine macrophages were exposed to the pyrrole-based compound 3,5-Dibromo-4-(3,4-dimethoxyphenyl)-1H-pyrrole-2-carboxylic acid ethyl ester…”
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12
Effects of a novel microtubule-depolymerizer on pro-inflammatory signaling in RAW264.7 macrophages
Published in Chemico-biological interactions (25-01-2018)“…The Nuclear Factor-kappa B (NF-κB) pathway is vital for immune system regulation and pro-inflammatory signaling. Many inflammatory disorders and diseases,…”
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Biological Characterization of an Improved Pyrrole-Based Colchicine Site Agent Identified through Structure-Based Design
Published in Molecular pharmacology (01-02-2016)“…A refined model of the colchicine site on tubulin was used to design an improved analog of the pyrrole parent compound, JG-03-14. The optimized compound,…”
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14
Ortho group activation of a bromopyrrole ester in Suzuki-Miyaura cross-coupling reactions: Application to the synthesis of new microtubule depolymerizing agents with potent cytotoxic activities
Published in Bioorganic & medicinal chemistry (15-06-2017)“…[Display omitted] New microtubule depolymerizing agents with potent cytotoxic activities have been prepared with a 5-cyano or 5-oximino group attached to a…”
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Formyl group activation of a bromopyrrole ester in Suzuki cross-coupling reactions: application to a formal synthesis of Polycitone A and B and Polycitrin A
Published in Tetrahedron (01-04-2014)“…A new pyrrole building block is described, which allows for the regiospecific synthesis of 2,3,5-trisubstituted pyrroles and 2,3,4,5-tetrasubstituted pyrroles…”
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Lipid-lowering effects of ethyl 2-phenacyl-3-aryl-1H-pyrrole- 4-carboxylates in rodents
Published in Molecules (Basel, Switzerland) (28-02-2004)“…A series of substituted 2-phenacyl-3-phenyl-1H-pyrrole-4-carboxylates were prepared from substituted acetophenones in 6 steps. The final condensations between…”
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Autophagy, cell death and sustained senescence arrest in B16/F10 melanoma cells and HCT-116 colon carcinoma cells in response to the novel microtubule poison, JG-03-14
Published in Cancer chemotherapy and pharmacology (01-02-2013)“…Purpose Previous studies have shown that the novel microtubule poison, JG-03-14, which binds to the colchicine binding site of tubulin, has the capacity to…”
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Autophagic cell death, polyploidy and senescence induced in breast tumor cells by the substituted pyrrole JG-03-14, a novel microtubule poison
Published in Biochemical pharmacology (01-10-2007)“…JG-03-14, a substituted pyrrole that inhibits microtubule polymerization, was screened against MCF-7 (p53 wild type), MDA-MB231 (p53 mutant), MCF-7/caspase 3…”
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Interference with endothelial cell function by JG-03-14, an agent that binds to the colchicine site on microtubules
Published in Biochemical pharmacology (01-11-2009)“…The microtubule-binding agent JG-03-14 (left) disrupted the structure of adherens junctions (middle) and caused membrane blebbing (right) in endothelial cells,…”
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Docking and hydropathic scoring of polysubstituted pyrrole compounds with antitubulin activity
Published in Bioorganic & medicinal chemistry (01-03-2008)“…HINT Interaction maps of JG-03-14 bound at the colchicine site of tubulin. Blue contours: favorable polar (H-bond); red: unfavorable polar; green: hydrophobic…”
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