Optimisation of the synthesis of second generation 1,2,4,5 tetraoxane antimalarials
作者:Paul M. O' Neill、Sunil Sabbani、Gemma L. Nixon、Matthew Schnaderbeck、Natalie L. Roberts、Emma R. Shore、Christopher Riley、Ben Murphy、Paul McGillan、Stephen A. Ward、Jill Davies、Richard K. Amewu
DOI:10.1016/j.tet.2016.08.043
日期:2016.10
An efficient route to the synthesis of potent antimalarial aryloxy 1,2,4,5-tetraoxanes is described that permits parallel synthesis for Structure–Activity Relationship (SAR) investigations. Brief details of the in vitro and in vivo antimalarial evaluation are included which enables identification of antimalarial leads for further development. Also described is an improved approach to the synthesis of
[EN] MANNICH BASE TETRAOXANES (MANNOXANES) AND PHENOL SUBSTITUTED ANALOGUES<br/>[FR] TÉTRAOXANES OBTENUS PAR RÉACTION DE MANNICH (MANNOXANES) ET ANALOGUES À SUBSTITUTION PHÉNOL
申请人:LIVERPOOL SCHOOL OF TROPICAL M
公开号:WO2010109172A1
公开(公告)日:2010-09-30
The present invention relates to dispiro tetraoxane compounds of formula (VII) which may find application in the treatment of malaria.
Comparative Antimalarial Activities and ADME Profiles of Ozonides (1,2,4-trioxolanes) OZ277, OZ439, and Their 1,2-Dioxolane, 1,2,4-Trioxane, and 1,2,4,5-Tetraoxane Isosteres
作者:Xiaofang Wang、Yuxiang Dong、Sergio Wittlin、Susan A. Charman、Francis C. K. Chiu、Jacques Chollet、Kasiram Katneni、Janne Mannila、Julia Morizzi、Eileen Ryan、Christian Scheurer、Jessica Steuten、Josefina Santo Tomas、Christopher Snyder、Jonathan L. Vennerstrom
DOI:10.1021/jm400004u
日期:2013.3.28
To ascertain the structure-activity relationship of the core 1,2,4-trioxolane substructure of dispiro ozonides OZ277 and OZ439, we compared the antimalarial activities and ADME profiles of the 1,2-dioxolane, 1,2,4-trioxane, and 1,2,4,5-tetraoxane isosteres. Consistent with previous data, both dioxolanes had very weak antimalarial properties. For the OZ277 series, the trioxane isostere had the best ADME profile, but its overall antimalarial efficacy was not superior to that of the trioxolane or tetraoxane isosteres. For the OZ439 series, there was a good correlation between the antimalarial efficacy and ADME profiles in the rank order trioxolane > trioxane > tetraoxane. As we have previously observed for OZ439 versus OZ277, the OZ439 series peroxides had superior exposure and efficacy in mice compared to the corresponding OZ277 series peroxides.