Positions

Selected Publications

Academic Article

Year Title Altmetric
2023-01-01 Quantitative nuclear magnetic resonance of chloride by an accurate internal standard approach.  Magnetic Resonance in Chemistry.  61:22-31. 2023-01-01
2022-06-01 Solution cis-Proline Conformation of IPCs Inhibitor Aureobasidin A Elucidated via NMR-Based Conformational Analysis.  Journal of Natural Products.  85:1449-1458. 2022-06-01
2022-02-01 19 F‐detected dual‐optimized inverted 1 J CC 1,n‐ADEQUATE.  Magnetic Resonance in Chemistry.  60:210-220. 2022-02-01
2022-02-01 Calculated and experimental 1 H and 13 C NMR assignments for cannabicitran.  Magnetic Resonance in Chemistry.  60:196-202. 2022-02-01
2021-06-01 Development of 19 F‐detected 1,1‐ADEQUATE for the characterization of polyfluorinated and perfluorinated compounds.  Magnetic Resonance in Chemistry.  59:628-640. 2021-06-01
2021-05-01 Structural Revision of a Wnt/β-catenin Modulator and Confirmation of Cannabielsoin Constitution and Configuration..  Chemical Communication .  5658–5661.. 2021-05-01
2021-01-01 Development of 19F‐detected 1,1‐ADEQUATE for the characterization of polyfluorinated and perfluorinated compounds..  Magn. Reson. in Chem.  59:628-640. 2021-01-01
2020-11-01 “One-Shot” Measurement of Residual Chemical Shift Anisotropy Using Poly-γ-benzyl-l-glutamate as an Alignment Medium.  Organic Letters.  22:8850-8854. 2020-11-01
2020-01-01 Determination of Complex Small‐Molecule Structures Using Molecular Alignment Simulation..  Angew. Chem. Int. Ed..  59:6172 –6176.. 2020-01-01
2020-01-01 Developing Nonuniform Sampling Strategies to Improve Sensitivity and Resolution in 1, 1‐ADEQUATE Experiments..  Magn. Reson. Chem.  58,:625–640. 2020-01-01
2020-01-01 Interception of the “Bycroft-Gowland” intermediate in the enzymatic macrocyclization of thiopeptides..  Am. Chem. Soc..  142:13170–13179. 2020-01-01
2020-01-01 Probing in Vitro Release Kinetics of Long-Acting Injectable Nanosuspensions via Flow-NMR Spectroscopy.  Mol. Pharmaceutics.  17:530−540. 2020-01-01
2020-01-01 Synergism of anisotropic and computational NMR methods reveals the likely configuration of phormidolide A. Editor’s Choice Hot Paper..  Chem. Commun.  56,:7565-7568. 2020-01-01
2020-01-01 Unequivocal Structure Confirmation of a Breitfussin Analog by Anisotropic NMR Measurements..  Chemical Science.  11:12081-12088.. 2020-01-01
2020-01-01 “One-Shot” Measurement of Residual Chemical Shift Anisotropy Using Poly-γ-benzyl-l-glutamate as an Alignment Medium..  Org. Lett..  22:8850-8854. 2020-01-01
2019-01-01 13C NMR-Based Approaches for Solving Challenging Stereochemical Problems..  Org. Lett.  21:4072-4076.. 2019-01-01
2019-01-01 Elucidation and Partial NMR Assignment of Mono-Sulfated Maitotoxins from the Caribbean..  Toxicon.  164,:44-50. 2019-01-01
2019-01-01 Enhancing the utility of 1JCH coupling constants in structural studies through optimized DFT analysis..  Chem. Comm.  55:5781-5784. 2019-01-01
2019-01-01 Invited submission Application of Anisotropic NMR Parameters to the Confirmation of Molecular Structure..  Nature Protocols.  , 14:217-247. 2019-01-01
2019-01-01 PBLG as a versatile liquid crystalline medium for anisotropic NMR data acquisition..  Chem. Comm.  55:4327-4330. 2019-01-01
2019-01-01 Unexpected Propargylic Retro-Brook Rearrangements in Alkynes.  J. Org. Chem.  84:10024−10031.. 2019-01-01
2018-06-01 Jizanpeptins, Cyanobacterial Protease Inhibitors from a Symploca sp. Cyanobacterium Collected in the Red Sea.  Journal of Natural Products.  81:1417-1425. 2018-06-01
2018-01-01 A Mechanistic Investigation of an Iridium-catalyzed Asymmetric Hydrogenation of Pyridinium salts..  Tetrahedron.  74:2182-2190. 2018-01-01
2018-01-01 A Practical Strategy for the Accurate Measurement of Residual Dipolar Couplings in Strongly Aligned Small Molecules.  J. Magn. Reson.  291:63-72. 2018-01-01
2018-01-01 Cyanobacterial Protease Inhibitors from a Symploca sp. Cyanobacterium Collected in the Red Sea..  J. Nat Prod.  81:1417-1425. 2018-01-01
2018-01-01 Enhanced Measurement of Residual Chemical Shift Anisotropy for Small Molecule Structure Elucidation..  Chem. Comm..  54,:4254-4257.. 2018-01-01
2018-01-01 Incorporating BIRD-based Homonuclear Decoupling in the Dual-Optimized, Inverted 1JCC 1,n-ADEQUATE Experiment..  Magn. Reson. Chem.  56:1029-1036. 2018-01-01
2018-01-01 Trichophycins B-F, chlorovinylidene-containing polyketides isolated from a cyanobacterial bloom..  J. Org. Chem.  83,:13256-13266. T. 2018-01-01
2018-01-01 Unequivocal Determination of Caulamidines A and B: Application and Validation of New Tools in the Structure Elucidation Toolbox..  Chem. Sci.  9,:307-314.. 2018-01-01
2017-01-01 A Rational Pre-catalyst Design for Bis-phosphine Mono-oxide Palladium Catalyzed Reactions..  Chem. Sci.  8:2841-2851. 2017-01-01
2017-01-01 Improving the performance of J-Modulated ADEQUATE Experiments Through Homonuclear Decoupling and Non-Uniform Sampling..  Magn. Reson. Chem.  55:191-197.. 2017-01-01
2017-01-01 In situ Characterization of Pharmaceutical Formulations by Dynamic Nuclear Polarization Enhanced MAS NMR..  J. Phys. Chem. B,.  121:8132-8141.. 2017-01-01
2017-01-01 Palladium-Catalyzed Enantioselective Arylation of Aryl Sulfenate Anions: A Combined Experimental and Computational Study.  J. Am. Chem. Soc.  139,:8337-8345. 2017-01-01
2017-01-01 Small Molecule NMR in the Pharmaceutical Sciences..  Magn. Reson. in Chem.  252. 2017-01-01
2017-01-01 Unequivocal determination of complex molecular structures using anisotropic NMR measurements..  Science.  356. 2017-01-01
2016-01-01 Band-Selective 2D HSQMBC: A Universal Technique for Detection and Measurement of 35,37Cl Isotope Effects for 13C Nuclei..  Org. Lett..  18:4786-4789. 2016-01-01
2016-01-01 Characterization and Synthesis of Eudistidine C, a Bioactive Marine Alkaloid with an Intriguing Molecular Scaffold..  J. Org. Chem..  81:10631-10640.. 2016-01-01
2016-01-01 Feature Article Expedited Selection of NMR Chiral Solvating Agents for Determination of Enantiopurity..  ACS Central Science.  2,:332-340. 2016-01-01
2016-01-01 Homodimericin A: A Complex Hexacyclic Fungal Metabolite..  J. Am. Chem. Soc.  138:12324-12327.. 2016-01-01
2016-01-01 Observation of Potentially Troublesome 2JCC Correlations in 1,1- and 1,1-HD-ADEQUATE Spectra..  Magn. Reson. Chem.  54,:341-345. 2016-01-01
2016-01-01 Selecting the Most Appropriate NMR Experiment to Access Weak and/or Very Long-Range Heteronuclear Correlations..  J. Nat. Prod..  79:1400-1406. 2016-01-01
2016-01-01 Spotlight Article Determination of Relative Configuration from Residual Chemical Shift Anisotropy..  J. Am. Chem. Soc.  138:9548-9556. 2016-01-01
2016-01-01 Using Electron paramagnetic Resonance (EPR) Spectroscopy to Facilitate Problem Solving in Pharmaceutical Process Research and Development,.  J. Org. Chem..  81:6937–6944. 2016-01-01
2015-01-01 Absolute Configuration of Remisporines A & B..  Org. & Biomolec. Chem.  13:4169-4173. 2015-01-01
2015-01-01 Carbon Multiplicity Editing in Long-Range Heteronuclear Correlation NMR Experiments: A Valuable Tool for the Structure Elucidation of Natural Products.  J. Nat. Prod..  , 78,:2236-2241.. 2015-01-01
2015-01-01 Extending Long-Range Heteronuclear NMR Connectivities by HSQMBC-COSY and HSQMBC-TOCSY Experiments..  J. Magn. Reson..  258,:25-32.. 2015-01-01
2015-01-01 Homodecoupled 1,1- and 1,n-ADEQUATE: Pivotal NMR Experiments for the Structure Revision of Cryptospirolepine..  Ang. Chem., Int. Ed..  54,:10160-10164. 2015-01-01
2015-01-01 Structure elucidation of uniformly 13C labeled small molecule natural products..  Magn. Reson. in Chem.  53:996. 2015-01-01
2015-01-01 Suppression of Phase and Amplitude nJHH Modulations in HSQC Experiments..  Magn. Reson. in Chem..  53:115-119. 2015-01-01
2015-01-01 Turning Spiroketals Inside Out: A Rearrangement Triggered by an Enol Ether Epoxidation..  Chemistry Open.  , 4,:577-580.. 2015-01-01
2014-01-01 Application of 1,n-ADEQUATE and modified variants to structure elucidation and spectral assignment problems..  eMagRes.  3:215-234.. 2014-01-01
2014-01-01 Chromatographic Separation and Assignment of Absolute Configuration of Hydroxywarfarin Isomers..  Chirality,.  26,:95–101. 2014-01-01
2014-01-01 Isolation, Structure Elucidation and Biological Activity of Altersolanol P using Staphylococcus aureus Fitness Test Based Genome-wide Screening..  J. Nat. Prod.  77,:497-502. 2014-01-01
2014-01-01 LR-HSQMBC: A High Sensitivity Technique to Probe Very Long-Range Heteronuclear Coupling Pathways..  J. Org. Chem..  79,:3887-3984. 2014-01-01
2014-01-01 NMR Structure Elucidation of Small Molecules and Natural Products: Choosing ADEQUATE vs. HMBC..  J. Nat. Prod.  77:1942-1946. 2014-01-01
2014-01-01 Pure In-Phase Heteronuclear Correlation Experiments..  Angew. Chem.,.  53:8379-8382. 2014-01-01
2014-01-01 Simultaneous 1H and 13C Enantiodifferentiation from Highly-Resolved Pure Shift HSQC Spectra..  Chem. Comm.  50,:10214-10217.. 2014-01-01
2014-01-01 The Impact of LR-HSQMBC Very Long-Range Heteronuclear Correlation Data on Computer-Assisted Structure Elucidation..  Org. Biomol. Chem.  12,:9505-9509. 2014-01-01
2014-01-01 Using LR-HSQMBC to Observe Long-Range 1H-15N Correlations..  Tet. Lett.  55:3365-3366.. 2014-01-01
2014-01-01 Using Pure Shift HSQC to Characterize Microgram Samples of Drug Metabolites..  Tet. Lett.  55,:5450-5453. 2014-01-01
J ‐modulated 19 F‐ and 1 H‐detected dual‐optimized inverted 1 J CC 1,n‐ADEQUATE: A universal ADEQUATE experiment.  Magnetic Resonance in Chemistry. 
Anomalous 1 H NMR chemical shift behavior of substituted benzoic acid esters.  Magnetic Resonance in Chemistry. 
Enhancing the utility of 1JCH coupling constants in structural studies through optimized DFT analysis.  Chemical Communications.  55:5781-5784.
Prediction of anisotropic NMR data without knowledge of alignment medium structure by surface decomposition.  Physical Chemistry Chemical Physics.  24:20164-20182.
Unequivocal determination of caulamidines A and B: application and validation of new tools in the structure elucidation tool box.  Chemical Science.  9:307-314.

Presentations

Full Name

  • Robert Thomas Williamson