Disclosed are antiparasitic compounds of Formulae (I, IA and IB). These compounds are useful in the manufacture of a pharmaceutical composition for the treatment or prophylaxis of infections caused by helminths or arthropod ectoparasites.
Demethylation of 2,4-dimethoxyquinolines: the synthesis of atanine
The synthesis of the quinoline alkaloid atanine 6, by selective demethylation of the 2,4-dimethoxyquinoline 11 is presented. An alternative demethylation utilising a thiolate anion leads to the regioisomeric 4-hydroxyquinoline 13.