The present disclosure relates to certain new and known triazolium and/or imidazolium salts and to their therapeutic use, for example in methods of treating or preventing an infection by a
Plasmodium
or
Babesia
parasite in a subject in need thereof. The triazolium and imidazolium salts are compounds of the Formula (I) or (II): wherein R
1
-R
4
, R
1′
-R
3′
, R
8
-R
11
, X, X′, X″, Y, Y′ and Y″ are as defined in the disclosure.
[EN] TRIAZOLIUM AND IMIDAZOLIUM SALTS AND USES THEREOF AS ANTIMALARIALS<br/>[FR] SELS DE TRIAZOLIUM ET D'IMIDAZOLIUM ET UTILISATIONS DE CEUX-CI EN TANT QU'ANTIPALUDÉENS
申请人:UNIV HAEALTH NETWORK
公开号:WO2010025558A1
公开(公告)日:2010-03-11
The present disclosure relates to certain new and known triazolium and/or imidazolium salts and to their therapeutic use, for example in methods of treating or preventing an infection by a Plasmodium or Babesia parasite in a subject in need thereof. The triazolium and imidazolium salts are compounds of the Formula (I) or (II): wherein R1-R4, R1'-R3', R8-R11, X, X', X", Y, Y' and Y" are as defined in the disclosure.
Anti-Plasmodium activity of imidazolium and triazolium salts
作者:Jason Z. Vlahakis、Carmen Lazar、Ian E. Crandall、Walter A. Szarek
DOI:10.1016/j.bmc.2010.05.020
日期:2010.8
We have previously reported that tetrazolium salts were both potent and specific inhibitors of Plasmodium replication, and that they appear to interact with a parasite component that is both essential and conserved. The use of tetrazolium salts in vivo is limited by the potential reduction of the tetrazolium ring to form an inactive, neutral acyclic formazan. To address this issue imidazolium and triazolium salts were synthesized and evaluated as Plasmodium inhibitors. Many of the imidazolium and triazolium salts were highly potent with active concentrations in the nanomolar range in Plasmodium falciparum cultures, and specific to Plasmodium with highly favorable therapeutic ratios. The results corroborate our hypothesis that an electron-deficient core is required so that the compound may thereby interact with a negatively charged moiety on the parasite merozoite; the side groups in the compound then form favorable interactions with adjacent parasite components and thereby determine both the potency and selectivity of the compound. (C) 2010 Elsevier Ltd. All rights reserved.