Attrition‐Enhanced Deracemization of the Antimalaria Drug Mefloquine
作者:Anthonius H. J. Engwerda、Rick Maassen、Paul Tinnemans、Hugo Meekes、Floris P. J. T. Rutjes、Elias Vlieg
DOI:10.1002/anie.201811289
日期:2019.2.4
Mefloquine is an important drug for prevention and treatment of malaria. It is commercially available as a racemic mixture, wherein only one enantiomer is active against malaria, while the other one causes severe psychotropic effects. By converting the drug into a compound that crystallizes as a racemizable racemic conglomerate, the deracemization of mefloquine into the desired enantiomer was achieved
Reaction of the Ruppert–Prakash reagent with perfluorosulfonic acids
作者:Vitalij V. Levin、Alexander D. Dilman、Pavel A. Belyakov、Marina I. Struchkova、Vladimir A. Tartakovsky
DOI:10.1016/j.jfluchem.2009.05.003
日期:2009.7
A new property of Me3SiCF3 to undergo C-F bond activation upon interaction with perfluorosulfonic acids is described. The reaction is catalyzed by titanium tetrachloride and affords difluoromethyl perfluorosulfonates in good yields. (C) 2009 Elsevier B.V. All rights reserved.