K<sub>2</sub>S<sub>2</sub>O<sub>8</sub>-Mediated Selective Trifluoromethylacylation and Trifluoromethylarylation of Alkenes under Transition-Metal-Free Conditions: Synthetic Scope and Mechanistic Studies
on and -arylation of alkenes with inexpensive CF3SO2Na and K2S2O8 in aqueous media has been developed, respectively, affording the highly chemoselective synthesis of CF3-functionalized chroman-4-ones and chromanes in satisfactory yields. Control experiments and DFT calculations indicate that the CF3SO2Na/K2S2O8 system is capable of trifluoromethylating the substrate of alkenes without a transition
new approach has been developed for the synthesis of 8-substituted 2H-chromenes, featuring a novel cascade aromatic Claisen rearrangement/o-quinone methide formation/6π-electrocyclization. This new method was demonstrated with 28 examples tolerating different substitutions at alkenes, allylic and aromatic ring and with total syntheses of three 2H-chromene natural products.
[EN] MACROCYCLIC FLU ENDONUCLEASE INHIBITORS<br/>[FR] INHIBITEURS MACROCYCLIQUES D'ENDONUCLÉASE DE LA GRIPPE
申请人:JANSSEN BIOPHARMA INC
公开号:WO2020075080A1
公开(公告)日:2020-04-16
The present invention relates to macrocyclic pyridotriazine derivatives of formula (I) and the pharmaceutically acceptable salts, solvates or or polymorph thereof, and the use of such compounds as a medicament, in particular in the prevention and/or treatment of viral infections caused by viruses belonging to the Orthomyxoviridae famiIy. The present invention furthermore relates to pharmaceutical compositions or combination preparations of the compounds, and to the compositions or preparations for use as a medicament, more preferably for the prevention or treatment of viral infections caused by viruses belonging to the Orthomyxoviridae family.
[EN] INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION<br/>[FR] INHIBITEURS DE LA RÉPLICATION DU VIRUS DE L'IMMUNODÉFICIENCE HUMAINE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2014164428A1
公开(公告)日:2014-10-09
The disclosure generally relates to compounds of formula I, including compositions and methods for treating human immunodeficiency virus (HIV) infection. The disclosure provides novel inhibitors of HIV, pharmaceutical compositions containing such compounds, and methods for using these compounds in the treatment of HIV infection. Formule (I)