Structure–Activity Relationships of 4-Position Diamine Quinoline Methanols as Intermittent Preventative Treatment (IPT) against <i>Plasmodium falciparum</i>
A library of diamine quinoline methanols were designed based on the mefloquine scaffold. The systematic variation of the 4-position amino alcohol side chain led to analogues that maintained potency while reducing accumulation in the central nervous system (CNS). Although the mechanism of action remains elusive, these data indicate that the 4-position side chain is critical for activity and that potency (as measured by IC(90)) does not correlate with accumulation in the CNS. A new lead compound, (S)-1-(2,8-bis(trifluoromethyl)quinolin-4-yl)-2-(2-(cyclopropylamino)ethylamino)ethanol (WR621308), was identified with single dose efficacy and substantially lower permeability across MDCK cell monolayers than mefloquine. This compound could be appropriate for intermittent preventative treatment (IPTx) indications or other malaria treatments currently approved for mefloquine.
[EN] PYRAZOLOPYRIMIDINES AND THEIR USES AS PDGFR INHIBITORS<br/>[FR] PYRAZOLOPYRIMIDINES ET LEURS UTILISATIONS EN TANT QU'INHIBITEURS DE PDGFR
申请人:[en]ACTELION PHARMACEUTICALS LTD
公开号:WO2023007009A1
公开(公告)日:2023-02-02
The disclosure is directed to compounds of formula (I) and pharmaceutically acceptable salts thereof. Pharmaceutical compositions comprising compounds of formula (I), as well as methods of their use and preparation, are also described.
2-Methoxy-6-chloro-9-(N-substituted-amino)-acridines. II. Compounds Derived from Cyclic Secondary Amines<sup>1</sup>