Search Results - "Roberts, Richard S"
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Spiroindolines identify the vesicular acetylcholine transporter as a novel target for insecticide action
Published in PloS one (01-05-2012)“…The efficacy of all major insecticide classes continues to be eroded by the development of resistance mediated, in part, by selection of alleles encoding…”
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Structure–activity relationships (SAR) and structure–kinetic relationships (SKR) of bicyclic heteroaromatic acetic acids as potent CRTh2 antagonists III: The role of a hydrogen-bond acceptor in long receptor residence times
Published in Bioorganic & medicinal chemistry letters (01-11-2014)“…The correct positioning and orientation of an hydrogen bond acceptor (HBA) in the tail portion of the biaryl series of CRTh2 antagonists is a requirement for…”
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Impurity Annihilation: Chromatography-Free Parallel Mitsunobu Reactions
Published in Organic letters (21-09-2000)“…Mitsunobu reaction of an alcohol ROH with a carboxylic acid, phthalimide, or N-hydroxyphthalimide (NuH) using DNAD (4) and (diphenylphosphino)polystyrene (11)…”
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2‑(Fluoromethoxy)-4′‑(S‑methanesulfonimidoyl)-1,1′-biphenyl (UCM-1306), an Orally Bioavailable Positive Allosteric Modulator of the Human Dopamine D1 Receptor for Parkinson’s Disease
Published in Journal of medicinal chemistry (22-09-2022)“…Tolerance development caused by dopamine replacement with l-DOPA and therapeutic drawbacks upon activation of dopaminergic receptors with orthosteric agonists…”
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4‑Amino-7,8-dihydro-1,6-naphthyridin-5(6H)‑ones as Inhaled Phosphodiesterase Type 4 (PDE4) Inhibitors: Structural Biology and Structure–Activity Relationships
Published in Journal of medicinal chemistry (22-03-2018)“…Rational design of a novel template of naphthyridinones rapidly led to PDE4 inhibitors with subnanomolar enzymatic potencies. X-ray crystallography confirmed…”
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Biphenyl Pyridazinone Derivatives as Inhaled PDE4 Inhibitors: Structural Biology and Structure–Activity Relationships
Published in Journal of medicinal chemistry (08-12-2016)“…Cyclic nucleotide cAMP is a ubiquitous secondary messenger involved in a plethora of cellular responses to biological agents involving activation of adenylyl…”
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Structure–activity relationships (SAR) and structure–kinetic relationships (SKR) of pyrrolopiperidinone acetic acids as CRTh2 antagonists
Published in Bioorganic & medicinal chemistry letters (01-11-2014)“…Pyrrolopiperidinone acetic acids (PPAs) were identified as highly potent CRTh2 receptor antagonists. In addition, many of these compounds displayed…”
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Structure-activity relationships (SAR) and structure-kinetic relationships (SKR) of sulphone-based CRTh2 antagonists
Published in European journal of medicinal chemistry (04-05-2016)“…Monocyclic and bicyclic ring systems were investigated as the “core” section of a series of diphenylsulphone-containing acetic acid CRTh2 receptor antagonists…”
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2-(1H-Pyrazol-1-yl)acetic acids as chemoattractant receptor-homologous molecule expressed on Th2 lymphocytes (CRTh2) antagonists
Published in European journal of medicinal chemistry (01-01-2014)“…In this manuscript, the synthesis and biological activity of a series of pyrazole acetic acid derivatives as CRTh2 antagonists is presented. Biological…”
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Phosphodiesterase-4 inhibitors: a review of current developments (2010 - 2012)
Published in Expert opinion on therapeutic patents (01-08-2013)“…At last, after many years of research, roflumilast has become the first oral phosphodiesterase-4 inhibitor to be approved by the medical agencies as an add-on…”
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Structure–activity relationships (SAR) and structure–kinetic relationships (SKR) of bicyclic heteroaromatic acetic acids as potent CRTh2 antagonists I
Published in Bioorganic & medicinal chemistry letters (01-11-2014)“…A knowledge-based design strategy led to the discovery of several new series of potent and orally bioavailable CRTh2 antagonists where a bicyclic…”
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Structure–activity relationships (SAR) and structure–kinetic relationships (SKR) of bicyclic heteroaromatic acetic acids as potent CRTh2 antagonists II: Lead optimization
Published in Bioorganic & medicinal chemistry letters (01-11-2014)“…Extensive structure–activity relationship (SAR) and structure–kinetic relationship (SKR) studies in the bicyclic heteroaromatic series of CRTh2 antagonists led…”
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2-(1H-Pyrazol-4-yl)acetic acids as CRTh2 antagonists
Published in Bioorganic & medicinal chemistry letters (01-06-2013)“…High throughput screening identified the pyrazole-4-acetic acid substructure as CRTh2 receptor antagonists. Optimisation of the compounds uncovered a tight SAR…”
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ROMP-Spheres: A Novel High-Loading Polymer Support Using Cross Metathesis between Vinyl Polystyrene and Norbornene Derivatives
Published in Organic letters (07-10-1999)“…The preparation of a polymer-supported ruthenium alkylidene metathesis catalyst is described. This immobilized catalyst has been used to initiate a…”
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Oxazole Synthesis with Minimal Purification: Synthesis and Application of a ROMPgel Tosmic Reagent
Published in Organic letters (25-01-2001)“…The synthesis of ring opening metathesis, polymer-supported Tosmic reagent 1 is described. This reagent was utilized in the conversion of aldehydes to oxazoles…”
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Horner−Emmons Synthesis with Minimal Purification Using ROMPGEL: A Novel High-Loading Matrix for Supported Reagents
Published in Organic letters (26-08-1999)“…The synthesis and use of two novel high-loading Horner−Emmons ring-opening metathesis polymers are described. α,β-Unsaturated ethyl esters (E:Z > 99:1) and…”
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A ROMPGEL-Supported N-Hydroxysuccinimide: A Host of Acylations with Minimal Purification
Published in Organic letters (10-02-2000)“…A novel N-hydroxysuccinimide ring-opening metathesis polymer is described as a recyclable supported acyl transfer reagent. Amides, carbamates, ureas, Weinreb…”
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ROMPGEL Scavengers: A High-Loading Supported Anhydride for Sequestering Amines and Hydrazines
Published in Organic letters (24-08-2000)“…A versatile method for sequestering excess amines and hydrazines is reported using a high-loading ROMPGEL anhydride polymer…”
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Pyrrolidine synthesis on polystyrene supports: development of a ‘one-pot’ dipolar cycloaddition strategy
Published in Tetrahedron letters (06-08-2001)“…Preparation of substituted pyrrolidines was achieved by solid-phase synthesis via a room temperature 1,3-dipolar cycloaddition of a silver-azomethine ylide,…”
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