Polyoxoheterocyclic tetracycles related to the Chinese antimalarial natural product qinghaosu (artemisinin) are disclosed. These materials have a ##STR1## core structure with an oxygen (carbonyl or alkyl ether) at position 12 and in some cases one or two alkyl or aralkyl substituents at position 11. These materials have antimalarial properties.
(EN) A process for synthesizing polyoxa heterocycle compounds and in particular the antimalarial agent known as quinghaosu or artemisinin and its analogs is disclosed. A family of new antimalerial analogs of quinghaosu is also disclosed.(FR) Procédé de synthèse de composés d'hétérocycle de polyoxa et notamment l'agent antipalludéen connu sous l'appellation de quinghaosu ou d'artémisinine et ses analogues. L'invention concerne également une famille de nouveaux analogues d'antipaludéens de quinghaosu.
Haller; Ramart, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1924, vol. 179, p. 121