Derivatives of pyrazolopyrimidine compounds represented by Formula I are disclosed:
These pyrazolopyrimidine derivatives and pharmaceutical compositions comprising these derivatives are useful in the treatment of HIV mediated diseases and conditions.
Synthesis of Chiral 1,1,1-Trifluoro-<i>α,α</i>-disubstituted 2,4-Diketones via Palladium-Catalyzed Asymmetric Allylation
作者:Guihua Chen、Jiajun Mo、Ding Jiang、Yungui Peng
DOI:10.1021/acs.orglett.3c00364
日期:——
Trifluoromethyl ketones are important enzyme inhibitors and versatile synthons for the preparation of trifluoromethylated heterocycles and complex molecules. An efficient methodology for the synthesis of chiral 1,1,1-trifluoro-α,α-disubstituted 2,4-diketones via palladium-catalyzed allylation with allyl methyl carbonates under mild conditions has been developed. This method surmounts the major obstacle
[EN] Derivatives of pyrazolopyrimidine compounds represented by Formula (I) are disclosed.These pyrazolopyrimidine derivatives and pharmaceutical compositions comprising these derivatives are useful in the treatment of HIV mediated diseases and conditions. [FR] Cette invention concerne des dérivés de composés pyrazolopyrimidine représentés par la formule (I). Ces dérivés ainsi que les compositions les comprenant sont particulièrement utiles pour le traitement d'affections et de maladies induites par le VIH.
Stereoarrayed CF<sub>3</sub>
-Substituted 1,3-Diols by Dynamic Kinetic Resolution: Ruthenium(II)-Catalyzed Asymmetric Transfer Hydrogenation
CF3‐substituted 1,3‐diols were stereoselectively prepared in excellent enantiopurity and high yield from CF3‐substituted diketones by using an ansa‐ruthenium(II)‐catalyzed asymmetric transfer hydrogenation in formic acid/triethylamine. The intermediate mono‐reduced alcohol was also obtained in very high enantiopurity by applying milder reaction conditions. In particular, CF3C(O)‐substituted benzofused