C-10 Ester and Ether Derivatives of Dihydroartemisinin − 10-α Artesunate, Preparation of Authentic 10-β Artesunate, and of Other Ester and Ether Derivatives Bearing Potential Aromatic Intercalating Groups at C-10
作者:Richard K. Haynes、Ho-Wai Chan、Man-Ki Cheung、Wai-Lun Lam、May-Kei Soo、Hing-Wo Tsang、Arnd Voerste、Ian D. Williams
providing new C-10 ester and ether derivatives of the antimalarial drug dihydroartemisinin (DHA, 2) have been examined. β-Artesunate has been prepared for the first time, and has been differentiated from the antimalarial α-artesunate; the latter has been incorrectly designated as the β-epimer in Chemical Abstracts and some primary literature. New ester and ether derivatives bearing potential intercalating
Synthesis and Antimalarial Activities of Several Fluorinated Artemisinin Derivatives
作者:Yu Ming Pu、Daniel S. Torok、Herman Ziffer、Xing-Qing Pan、Steven R. Meshnick
DOI:10.1021/jm00020a028
日期:1995.9
The carbonyl groups in several artemisinin derivatives were converted into geminal difluorinated compounds on treatment with diethylaminosulfur trifluoride. A number of other mono- and polyfluorinated artemisinin derivatives were prepared. Their in vitro antimalarial activities were all equal to or greater than the nonfluorinated analogs or precursors.