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Keywords:

  • absolute configuration;
  • antimalarial activity;
  • enantiomers;
  • erythro-mefloquine;
  • stereoselectivity;
  • structure elucidation
Thumbnail image of graphical abstract

Mefloquine (MQ), an antimalarial drug, is used as a racemate of (−)- and (+)-enantiomers, which display biological differences. The question concerning their exact configuration remains a matter of debate. The absolute configuration of the two MQ enantiomers as well as their biological activity has been established, thus confirming the importance of the stereochemistry in the design of MQ analogues that have fewer adverse side effects (see figure).