<i>tele</i>-Substitution Reactions in the Synthesis of a Promising Class of 1,2,4-Triazolo[4,3-<i>a</i>]pyrazine-Based Antimalarials
作者:Marat Korsik、Edwin G. Tse、David G. Smith、William Lewis、Peter J. Rutledge、Matthew H. Todd
DOI:10.1021/acs.joc.0c01045
日期:2020.11.6
We have discovered and studied a tele-substitution reaction in a biologically important heterocyclic ring system. Conditions that favor 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 crystallographic