[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.
Discovery and initial optimization of 5,5′-disubstituted aminohydantoins as potent β-secretase (BACE1) inhibitors
作者:Pawel Nowak、Derek C. Cole、Ann Aulabaugh、Jonathan Bard、Rajiv Chopra、Rebecca Cowling、Kristi Y. Fan、Baihua Hu、Steve Jacobsen、Minakshi Jani、Guixan Jin、Mei-Chu Lo、Michael S. Malamas、Eric S. Manas、Rani Narasimhan、Peter Reinhart、Albert J. Robichaud、Joseph R. Stock、Joan Subrath、Kristine Svenson、Jim Turner、Erik Wagner、Ping Zhou、John W. Ellingboe
DOI:10.1016/j.bmcl.2009.11.052
日期:2010.1
8,8-Diphenyl-2,3,4,8-tetrahydroimidazo[1,5-a]pyrimidin-6-amine (1) was identified through HTS, as a weak (micromolar) inhibitor of BACE1. X-Ray crystallographic studies indicate the 2-aminoimidazole ring forms key H-bonding interactions with Asp32 and Asp228 in the catalytic site of BACE1. Lead optimization using structure-based focused libraries led to the identification of low nanomolar BACE1 inhibitors
通过HTS将8,8-二苯基-2,3,4,8-四氢咪唑并[1,5- a ]嘧啶-6-胺(1)鉴定为BACE1的弱(微摩尔)抑制剂。X射线晶体学研究表明2-氨基咪唑环在BACE1的催化位点与Asp32和Asp228形成关键的H键相互作用。使用基于结构的聚焦库进行的前导优化导致鉴定出具有从S 1到S 3口袋的取代基的低纳摩尔BACE1抑制剂(例如20b)。
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.