Die Pyrano[3,2-b]indole 4a–4c lassen sich durch regioselektive Reaktion des Tetrahydro-3-pyranons (3) mit den Phenylhydrazinen 6a–6c gewinnen, das Naphthopyrano[3,2-b]indol 24萘并吡喃 23 mit 6a。23 läßt sich aus dem Dihydropyranon 16 und dem Isobenzofuran 21 durch Cycloaddition und Dehydratisierung der so gewonnenen end/exo-Epoxynaphthopyranone 22a/22b herstellen。
Catalytic Enantioselective Synthesis of 1,4‐Keto‐Alkenylboronate Esters and 1,4‐Dicarbonyls
作者:Michael Z. Liang、Simon J. Meek
DOI:10.1002/anie.201907757
日期:2019.10
catalytic enantioselective method for the synthesis of 1,4-keto-alkenylboronate esters by a rhodium-catalyzed conjugate addition pathway is disclosed. A variety of novel, bench-stable alkenyl gem-diboronate esters are synthesized. These easily accessible reagents react smoothly with a collection of cyclic α,β-unsaturatedketones, generating a new C-C bond and stereocenter. Products are isolated in up to
Enantioselective palladium-catalysed conjugate addition of arylsiloxanes
作者:Francesca Gini、Bart Hessen、Ben L. Feringa、Adriaan J. Minnaard
DOI:10.1039/b616969d
日期:——
The complex formed from Pd(CH3CN)4(BF4)2 and (R,R)-MeDUPHOS is a highly enantioselective catalyst for the asymmetric conjugate addition of aryltriethylsiloxanes to a variety of unsaturated ketones, lactones and lactams.
[EN] INHIBITORS OF LEUCINE RICH REPEAT KINASE 2<br/>[FR] INHIBITEURS DE LA KINASE 2 À RÉPÉTITION RICHE EN LEUCINE
申请人:GLAXOSMITHKLINE IP DEV LTD
公开号:WO2019012093A1
公开(公告)日:2019-01-17
The present invention relates to novel compounds that inhibit LRRK2 kinase activity, to processes for their preparation, to compositions containing them and to their use in the treatment of or prevention of diseases associated with or characterized by LRRK2 kinase activity, for example Parkinson's disease, Alzheimer's disease and amyotrophic lateral sclerosis (ALS).
[EN] SUBSTITUTED DIAMINOCARBOXAMIDE AND DIAMINOCARBONITRILE PYRIMIDINES, COMPOSITIONS THEREOF, AND METHODS OF TREATMENT THEREWITH<br/>[FR] DIAMINOCARBOXAMIDEPYRIMIDINES ET DIAMINOCARBONITRILEPYRIMIDINES SUBSTITUÉES, COMPOSITIONS DE CELLES-CI ET PROCÉDÉS DE TRAITEMENT À L'AIDE DE CELLES-CI
申请人:SIGNAL PHARM LLC
公开号:WO2012145569A1
公开(公告)日:2012-10-26
Provided herein are Diaminopyrimidine Compounds having the following structures: wherein R1, R2, R3, and R4 are as defined herein, compositions comprising an effective amount of a Diaminopyrimidine Compound, and methods for treating or preventing liver fibrotic disorders or a condition treatable or preventable by inhibition of a JNK pathway.
Microwave-Assisted Synthesis of Novel (5-Nitropyridin-2-yl)alkyl and (5-Nitropyridin-3-yl)alkyl Carbamates
作者:Christophe Henry、Andreas Haupt、Sean C. Turner
DOI:10.1021/jo802439d
日期:2009.3.6
straightforward approach to novel (5-nitropyridin-2-yl)alkyl and (5-nitropyridin-3-yl)alkyl carbamate building blocks is presented in this study. Their construction is achieved by condensation of N-carbamate α- and β-amino carbonyl derivatives with 1-methyl-3,5-dinitro-2-pyridone 1 under microwave irradiation. Judiciously chosen modifications in the nature of the parent carbonyl starting material has influenced