Search Results - "Dhar, T G"
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1
Organocatalyzed, Visible-Light Photoredox-Mediated, One-Pot Minisci Reaction Using Carboxylic Acids via N‑(Acyloxy)phthalimides
Published in Journal of organic chemistry (02-03-2018)“…An improved, one-pot Minisci reaction has been developed using visible light, an organic photocatalyst, and carboxylic acids as radical precursors via the…”
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2
Ligand-Promoted Borylation of C(sp3)H Bonds with Palladium(II) Catalysts
Published in Angewandte Chemie International Edition (11-01-2016)“…A quinoline‐based ligand effectively promotes the palladium‐catalyzed borylation of C(sp3)H bonds. Primary β‐C(sp3)H bonds in carboxylic acid derivatives as…”
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3
Complex molecule synthesis by electrocatalytic decarboxylative cross-coupling
Published in Nature (London) (23-11-2023)“…Modern retrosynthetic analysis in organic chemistry is based on the principle of polar relationships between functional groups to guide the design of synthetic…”
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4
Synthesis of Cyclobutane-Fused Tetracyclic Scaffolds via Visible-Light Photocatalysis for Building Molecular Complexity
Published in Journal of the American Chemical Society (12-02-2020)“…We describe the synthesis through visible-light photocatalysis of novel functionalized tetracyclic scaffolds that incorporate a fused…”
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5
Synthesis of 1‑(tert-Butyl) 4‑Methyl (1R,2S,4R)‑2-Methylcyclohexane-1,4-dicarboxylate from Hagemann’s tert-Butyl Ester for an Improved Synthesis of BMS-986251
Published in Journal of organic chemistry (21-08-2020)“…We describe an efficient synthetic route to differentially protected diester, 1-(tert-butyl) 4-methyl (1R,2S,4R)-2-methylcyclohexane-1,4-dicarboxylate (+)-1,…”
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6
Intramolecular [2+2] Cycloaddition of N‐Allylcinnamamines and N‐Allylcinnamamides by Visible‐Light Photocatalysis
Published in European journal of organic chemistry (09-01-2020)“…The visible light‐promoted intramolecular [2+2] cycloaddition of N‐allylcinnamamines and N‐allylcinnamamides in the presence of catalytic amounts of…”
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7
Photocatalytic Dearomative Intermolecular [2 + 2] Cycloaddition of Heterocycles for Building Molecular Complexity
Published in Journal of organic chemistry (15-01-2021)“…Indole and indoline rings are important pharmacophoric scaffolds found in marketed drugs, agrochemicals, and biologically active molecules. The [2 + 2]…”
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8
Identification of potent, selective and orally bioavailable phenyl ((R)-3-phenylpyrrolidin-3-yl)sulfone analogues as RORγt inverse agonists
Published in Bioorganic & medicinal chemistry letters (15-08-2019)“…[Display omitted] An X-ray crystal structure of one of our previously discovered RORγt inverse agonists bound to the RORγt ligand binding domain revealed that…”
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9
Identification and Preclinical Pharmacology of ((1R,3S)‑1-Amino-3-((S)‑6-(2-methoxyphenethyl)-5,6,7,8-tetrahydronaphthalen-2-yl)cyclopentyl)methanol (BMS-986166): A Differentiated Sphingosine-1-phosphate Receptor 1 (S1P1) Modulator Advanced into Clinical Trials
Published in Journal of medicinal chemistry (14-03-2019)“…Recently, our research group reported the identification of BMS-986104 (2) as a differentiated S1P1 receptor modulator. In comparison to fingolimod (1), a full…”
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Discovery of 2,6–difluorobenzyl ether series of phenyl ((R)–3–phenylpyrrolidin–3–yl)sulfones as surprisingly potent, selective and orally bioavailable RORγt inverse agonists
Published in Bioorganic & medicinal chemistry letters (01-10-2020)“…[Display omitted] In an effort to discover oral inverse agonists of RORγt to treat inflammatory diseases, a new 2,6–difluorobenzyl ether series of cyclopentyl…”
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11
Small Molecule Antagonist of Leukocyte Function Associated Antigen-1 (LFA-1): Structure−Activity Relationships Leading to the Identification of 6-((5S,9R)-9-(4-Cyanophenyl)-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3,7-triazaspiro[4.4]nonan-7-yl)nicotinic Acid (BMS-688521)
Published in Journal of medicinal chemistry (13-05-2010)“…Leukocyte function-associated antigen-1 (LFA-1), also known as CD11a/CD18 or αLβ2, belongs to the β2 integrin subfamily and is constitutively expressed on all…”
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12
Identification of Tricyclic Agonists of Sphingosine-1-phosphate Receptor 1 (S1P1) Employing Ligand-Based Drug Design
Published in Journal of medicinal chemistry (10-11-2016)“…Fingolimod (1) is the first approved oral therapy for the treatment of relapsing remitting multiple sclerosis. While the phosphorylated metabolite of…”
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13
Novel Synthesis of the Hexahydroimidazo[1,5b]isoquinoline Scaffold: Application to the Synthesis of Glucocorticoid Receptor Modulators
Published in Journal of medicinal chemistry (11-02-2010)“…The first stereoselective synthesis of the hexahydroimidazo[1,5b]isoquinoline (HHII) scaffold as a surrogate for the steroidal A-B ring system is described…”
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14
Perspectives on Nuclear Magnetic Resonance Spectroscopy in Drug Discovery Research
Published in Journal of medicinal chemistry (08-02-2024)“…The drug discovery landscape has undergone a significant transformation over the past decade, owing to research endeavors in a wide range of areas leading to…”
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15
The identification of novel p38α isoform selective kinase inhibitors having an unprecedented p38α binding mode
Published in Bioorganic & medicinal chemistry letters (15-07-2013)“…A novel series of p38 MAP kinase inhibitors with high selectivity for the p38α isoform over the other family members including the highly homologous p38β…”
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16
Overcoming Limitations in Decarboxylative Arylation via Ag–Ni Electrocatalysis
Published in Journal of the American Chemical Society (28-09-2022)“…A useful protocol for achieving decarboxylative cross-coupling (DCC) of redox-active esters (RAE, isolated or generated in situ) and halo(hetero)arenes is…”
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17
Decarboxylative Intramolecular Arene Alkylation Using N‑(Acyloxy)phthalimides, an Organic Photocatalyst, and Visible Light
Published in Journal of organic chemistry (05-07-2019)“…An intramolecular arene alkylation reaction has been developed using the organic photocatalyst 4CzIPN, visible light, and N-(acyloxy)phthalimides as radical…”
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18
Antroquinonol A: Scalable Synthesis and Preclinical Biology of a Phase 2 Drug Candidate
Published in ACS central science (27-01-2016)“…The fungal-derived Taiwanese natural product antroquinonol A has attracted both academic and commercial interest due to its reported exciting biological…”
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19
Urea based CCR3 antagonists employing a tetrahydro-1,3-oxazin-2-one spacer
Published in Bioorganic & medicinal chemistry letters (2009)“…Conformational restriction of open chain analogs with a more polar tetrahydro-1,3-oxazin-2-one spacer led to the identification of potent urea-based CCR3…”
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20
Discovery and Synthesis of Heterobifunctional Degraders of Rearranged during Transfection (RET) Kinase
Published in Journal of medicinal chemistry (14-11-2024)“…We describe the design, synthesis, and structure–activity relationship (SAR) of heterobifunctional RET ligand-directed degraders (LDDs) derived from three…”
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