Antiviral activity is exhibited by compounds having the formula
or a pharmaceutically acceptable salt thereof wherein R1 is a purinyl, substituted purinyl, pyrimidinyl, or substituted pyrimidinyl, R6 is -OH, -CH20H, -OP03H2, -CH2-O-P03H2,
or
and R7 is hydrogen, -P03H2, or
FACILE SYNTHESIS OF DIALKYL FLUOROMALONATES AND THEIR DERIVATIVES
作者:Nobuo Ishikawa、Akio Takaoka
DOI:10.1246/cl.1981.107
日期:1981.1.5
Dimethyl and diethyl fluoromalonates were prepared by the stepwise basicalcoholysis of hexafluoropropene in a total yield of 50–55%. These dialkyl fluoromalonates were alkylated with alkyl halides, and the resulting dialkyl α-fluoroalkylmalonates were cyclized with urea affording 5-fluorobarbituric acid derivatives.
Fluorine gas for life science syntheses: green metrics to assess selective direct fluorination for the synthesis of 2-fluoromalonate esters
作者:Antal Harsanyi、Graham Sandford
DOI:10.1039/c5gc00402k
日期:——
Green metric assessment of the one step synthesis of 2-fluoromalonate esters using fluorine gas compares favourably with established multistep processes.
Synthetic Applications of the Carbanion with a Fluoroalkyl Group Generated by Palladium(0) Catalyst under Neutral Conditions
作者:Yuzo Komatsu、Toru Sakamoto、Tomoya Kitazume
DOI:10.1021/jo990463r
日期:1999.10.1
fluorine atom(s) are described. Palladium(0)-catalyzedallylation reactions under neutral conditions proceeded smoothly in the system where a methylene group is activated by fluoroalkyl and carbonyl groups. In the above systems, the 2,2,2-trifluoroethyl moiety has been introduced onto the allylic position without the release of fluoride. Further, palladium(0)-catalyzed heterocyclization was achieved