Synthesis of [1,2-a]-fused tricyclic dihydroquinolines by palladium-catalyzed intramolecular C–N cross-coupling of polarized heterocyclic enamines
作者:Břetislav Brož、Zdeňka Růžičková、Petr Šimůnek
DOI:10.3998/ark.5550190.p009.723
日期:——
A simple methodology for [1,2-a]-fusedtricyclicdihydroquinolines is established. The key step of the methodology is an intramolecular Buchwald-Hartwig amination reaction of suitable halogenated (both bromo and chloro) cyclic enaminoketones, enaminoesters and enaminonitriles with various ring size (from fiveto seven-membered). Optimal reaction conditions (palladium source, base, ligand) depend on
Highly β-Regioselective Friedel-Crafts Aminoalkylation of Pyrroles with Cyclic Perfluoroalkylated Imines
作者:Olga I. Shmatova、Nikolay E. Shevchenko、Elisabeth S. Balenkova、Gerd-Volker Röschenthaler、Valentine G. Nenajdenko
DOI:10.1002/ejoc.201201725
日期:2013.5
A Friedel–Crafts-type alkylation reaction was studied between various pyrroles and α-polyfluoroalkylated cyclicimines that were activated by Lewis acids. The reaction proceeded under mild conditions and provided a high yielding synthesis of α-CF3-substituted pyrrolidines and piperidines as well as seven-membered analogues that contained a pyrrole ring. The unpredictably high β-selectivity for the
New greenfluorescentprotein (GFP) chromophoreanalogues, namely 4-(diarylmethylene)imidazolinones (DAINs), were readily synthesized under weakly acidic conditions using a novel condensation reaction between methyl imidate (or thioimidate) and ethyl N-(diarylmethylene)glycinate. DAINs showed notable fluorescence properties. Although they were nearly non-fluorescent in the solution, visible emissions
[EN] ALKYNYL ALCOHOLS AND METHODS OF USE<br/>[FR] ALCOOLS D'ALCYNYLE ET PROCÉDÉS D'UTILISATION CORRESPONDANTS
申请人:HOFFMANN LA ROCHE
公开号:WO2015025025A1
公开(公告)日:2015-02-26
The invention relates to compounds of Formula (0): wherein Q, A1-A8, R4 and R5 and each has the meaning as described herein. Compounds of Formula (0) and pharmaceutical compositions thereof are useful in the treatment of diseases and disorders in which undesired or over- activation of NF-kB signaling is observed.
Described herein are compounds, including pharmaceutically acceptable salts, solvates, metabolites, prodrugs thereof, methods of making such compounds, pharmaceutical compositions comprising such compounds, and methods of using such compounds to treat non-alcoholic steatohepatitis and other diseases characterized by dysfunctional tissue healing and fibrosis.