[EN] METHOD FOR THE USE OF PYRANOINDOLE DERIVATIVES TO TREAT INFECTION WITH HEPATITIS C VIRUS<br/>[FR] METHODE D'UTILISATION DE DERIVES DU PYRANOINDOLE POUR TRAITER UNE INFECTION PAR LE VIRUS DE L'HEPATITE C
申请人:WYETH CORP
公开号:WO2003099275A1
公开(公告)日:2003-12-04
The invention is directed to methods of treating, preventing, or inhibiting a Hepatitis C viral infection in a mammal comprising containing the mammal with an effective amount of a compound of the formula: Wherein substitutions at R1, R2, R3-R12, and Y are set forth in the specification.
Direct asymmetric hydrogenation of α-keto acids by using the highly efficient chiral spiro iridium catalysts
作者:Pu-Cha Yan、Jian-Hua Xie、Xiang-Dong Zhang、Kang Chen、Yuan-Qiang Li、Qi-Lin Zhou、Da-Qing Che
DOI:10.1039/c4cc07643e
日期:——
A new efficient and highly enantioselective direct asymmetrichydrogenation of alpha-keto acids employing the Ir/SpiroPAP catalyst under mild reaction conditions has been developed. This method might be feasible for the preparation of a series of chiral alpha-hydroxy acids on a large scale.
very active Ru nanoparticles, stabilized in a polysiloxane matrix, were prepared and studied in hydrogenation reactions by the integration of catalysis and analysis. We used our strategy to combine catalytic activity and separation selectivity in a capillary microreactor, installed in a GC–MS instrument, to develop a fast and reliable screening tool for catalysis over Ru nanoparticles. A high conversion
complexes have been developed as efficient catalysts for the bisvinylogous Mukaiyama aldol reaction of silylketeneacetal with α-ketoesters and aldehydes, respectively. The catalytic systems were highly ε-selective, and the substrate scope was wide. The corresponding ε-hydroxy-α,β,γ,δ-unsaturated esters were obtained in up to 95% yield and 98% ee.
Room-Temperature Coupling/Decarboxylation Reaction of α-Oxocarboxylates with α-Bromoketones: Solvent-Controlled Regioselectivity for 1,2- and 1,3-Diketones
作者:Zhen He、Xiaotian Qi、Zhijie She、Yinsong Zhao、Shiqing Li、Junbin Tang、Ge Gao、Yu Lan、Jingsong You
DOI:10.1021/acs.joc.6b02575
日期:2017.2.3
A transition-metal-free and room-temperature coupling/decarboxylation reaction between α-oxocarboxylates and α-bromoketones is reported herein. It represents the first mild and regioselective synthesis of either 1,2- or 1,3-diketones from the same starting materials. Notably, the regioselectivity is simply controlled by solvents. The preliminary experimental data and DFT calculations suggest sequential