ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
1/1
0/0

Tele-Substitution Reactions in the Synthesis of a Promising Class of Antimalarials

preprint
submitted on 05.05.2020 and posted on 06.05.2020 by Marat Korsik, Edwin Tse, David Smith, William Lewis, Peter J. Rutledge, Matthew Todd

We have discovered and studied a telesubstitution reaction in a biologically important heterocyclic ring system. Conditions that favour the tele-substitution pathway were identified: the use of increased equivalents of the nucleophile or decreased equivalents of base, or the use of softer nucleophiles, less polar solvents and larger halogens on the electrophile. Using results from X-ray crystallography and isotope labelling experiments a mechanism for this unusual transformation is proposed. We focused on this triazolopyrazine as it is the core structure of the in vivo active anti-plasmodium compounds of Series 4 of the Open Source Malaria consortium.

Archive of the electronic laboratory notebook with the description of all conducted experiments and raw NMR data could be accessed via following link https://ses.library.usyd.edu.au/handle/2123/21890 . For navigation between entries of laboratory notebook please use file "Strings for compounds in the article.pdf" that works as a reference between article codes and notebook codes, also this file contain SMILES for these compounds.


Funding

LP150101226

History

Email Address of Submitting Author

mkor7275@uni.sydney.edu.au

Institution

The University of Sydney

Country

Australia

ORCID For Submitting Author

0000-0003-1723-4017

Declaration of Conflict of Interest

We have no conflict of interest to declare

Exports