Photocatalytic Oxidative Iodination of Electron‐Rich Arenes
作者:Rok Narobe、Simon J. S. Düsel、Jernej Iskra、Burkhard König
DOI:10.1002/adsc.201900298
日期:2019.9.3
A visible‐light‐mediated oxidative iodination of electron‐rich arenes has been developed. 2.5 mol% of unsubstituted anthraquinone as photocatalyst were used in combination with elementary iodine, trifluoroacetic acid and oxygen as the terminal oxidant. The iodination proceeds upon irradiation in non‐ or weakly‐electron donating solvents (DCM, DCE and benzene) wherein a spectral window in strongly coloured
[EN] LINKED DIBENZIMIDAZOLE DERIVATIVES<br/>[FR] DÉRIVÉS DU DIBENZIMIDAZOLE LIÉS
申请人:ENANTA PHARM INC
公开号:WO2010091413A1
公开(公告)日:2010-08-12
The present invention discloses linked dibenzimidazole derivatives, or pharmaceutically acceptable salts, esters, or prodrugs thereof, which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
Synthesis of planar chiral ferrocenes <i>via</i> a Pd(0)-catalyzed <i>syn</i>-carbopalladation/asymmetric C–H alkenylation process
作者:Lixiang Jia、Xiaobing Liu、An-An Zhang、Tao Wang、Yuanzhao Hua、Heng Li、Lantao Liu
DOI:10.1039/c9cc06529f
日期:——
The Pd(0)-catalyzed tandem intermolecular syn-carbopalladation/asymmetric C-H alkenylation reaction of N-ferrocenyl propiolamides with aryl iodides has been realized, generating planarchiralferrocene[1,2-d] pyrrolinones in good yields. Through employing BINOL-derived phosphoramidite ligands, up to 95% ee is achieved.
The present invention provides an activator in arylamination using a palladium compound as a catalyst, which is superior to conventional phosphines in stability and performance. With the phosphine sulfide as an activator, an arylamination reaction achieves improved selectivity to produce a desired aromatic amine in an obviously increased yield as compared with a reaction using the corresponding phosphine compound. Moreover, the phosphine sulfide of the invention is impervious to oxidation and exists stably in air and therefore sufficiently withstands use on an industrial scale.
[EN] ANTIVIRAL COMPOUNDS COMPOSED OF THREE LINKED ARYL MOIETIES TO TREAT DISEASES SUCH AS HEPATITIS C<br/>[FR] COMPOSÉS ANTIVIRAUX DE TROIS FRACTIONS D'ARYLE LIÉES POUR TRAITER DES MALADIES TELLES QUE L'HÉPATITE C
申请人:SCHERING CORP
公开号:WO2010138791A1
公开(公告)日:2010-12-02
The present invention relates to novel Linked Tricyclic Aryl Compounds, compositions comprising at least one Linked Tricyclic Compound, and methods of using Linked Tricyclic Aryl Compounds for treating or preventing HCV infection in a patient. in one aspect, the present invention provides Compounds of Formula (I): and pharmaceutically acceptable salts thereof, wherein: Non-limiting examples of the Compounds of Formula (II) include compound 56