Der Arbeitskreis Reggelin

ConArch+: Configurational and Conformational Architect

Configurational Analysis by Residual Dipolar Coupling Driven Floating Chirality Distance Geometry Calculations
Configurational Analysis by Residual Dipolar Coupling Driven Floating Chirality Distance Geometry Calculations

ConArch+ is a fast command-line driven 64-bit tool for RDC analysis. In combination with distance geometry (DG) geometric constraints from the constitution together with experimental restraints including RDCs the program automatically generates structures fulfilling these boundary conditions with concomitant establishment of the relative configuration by calculation of the relevant chiral volumes. Contrasting alternative methods, in this approach the relative configuration found is a direct consequence of the experimental restraints. It is not a verification or falsification of a predefined structure (from DFT calculations or whatsoever), thus avoiding the tedious and time consuming 2n-1 configurational and the – even worse – conformational problem. At no stage of the assignment a force field is involved.

Supply source

For non-profit institutions the source code of ConArch+ together with the necessary DG modules is available free of charge from the authors. For commercial users a separate website* describing modes of usage will be available if needed.

Please contact either Prof. M. Reggelin or PD Dr. S. Immel.

Literature

S. Immel, M. Köck, M. Reggelin, „NMR-Based Configurational Assignments of Natural Products: How Floating Chirality Distance Geometry Calculations Simplify Gambling with 2N–1 Diastereomers“, J. Nat. Prod. 2022, 85, 1837-1849. DOI: 10.1021/acs.jnatprod.2c00427

S. Immel, M. Köck, M. Reggelin, „Bayesian Inference Applied to NMR-Based Configurational Assignments by Floating Chirality Distance Geometry Calculations“, J. Am. Chem. Soc. 2022, 144, 6830-6838. DOI: https://doi.org/10.1021/jacs.2c00813

M. Reggelin, S. Immel, „Configurational Analysis by Residual Dipolar Couplings: Critical Assessment of “Structural Noise” from Thermal Vibrations“, Angew. Chem. Int. Ed. 2021, 60, 3412-3416. DOI: https://doi.org/10.1002/anie.202011081

M. Köck, M. Reggelin, S. Immel, „Model-Free Approach for the Configurational Analysis of Marine Natural Products“, Marine Drugs 2021, 19. DOI: https://doi.org/10.3390/md19060283

M. Köck, M. Reggelin, S. Immel, „The Advanced Floating Chirality Distance Geometry Approach―How Anisotropic NMR Parameters Can Support the Determination of the Relative Configuration of Natural Products“, Marine Drugs 2020, 18. DOI: https://doi.org/10.3390/md18060330

S. Immel, M. Köck, M. Reggelin, „Configurational analysis by residual dipolar couplings: A critical assessment of diastereomeric differentiabilities“, Chirality 2019, 31, 384-400. DOI: 10.1002/chir.23065

S. Immel, M. Köck, M. Reggelin, „Configurational Analysis by Residual Dipolar Coupling Driven Floating Chirality Distance Geometry Calculations“, Chem. Eur. J. 2018, 24, 13918-13930. DOI: 10.1002/chem.201802800

D. F. Mierke, M. Reggelin, „Simultaneous Determination of Conformation and Configuration Using Distance Geometry“, J. Org. Chem. 1992, 57, 6365-6367. DOI: 10.1021/jo00049a062

P. Berdagué, B. Gouilleux, M. Noll, S. Immel, M. Reggelin, P. Lesot, „Study and quantification of the enantiodiscrimination power of four polymeric chiral LLCs using NAD 2D-NMR“, Phys. Chem. Chem. Phys. 2022, 24, 7338-7348. DOI: https://doi.org/10.1039/D1CP04915A.

*This site will be provided by „Wirkungswerk“ – Werbeagentur Mannheim and Neurowebdesign.de.