AbstractHighly substituted quinolones are obtained through an efficient and atom economical procedure that involves two consecutive palladium(II)‐catalyzed CH alkenylation reactions. A selective 6‐endo intramolecular CH alkenylation leads to 4‐substituted quinolones that have been further functionalized at C‐3 through a second intermolecular CH alkenylation reaction.magnified image
Discovery of a Potent, Long-Acting, and CNS-Active Inhibitor (BIA 10-2474) of Fatty Acid Amide Hydrolase
作者:László E. Kiss、Alexandre Beliaev、Humberto S. Ferreira、Carla P. Rosa、Maria João Bonifácio、Ana I. Loureiro、Nuno M. Pires、P. Nuno Palma、Patrício Soares-da-Silva
DOI:10.1002/cmdc.201800393
日期:2018.10.22
Fattyacidamidehydrolase (FAAH) can be targeted for the treatment of pain associated with various medical conditions. Herein we report the design and synthesis of a novel series of heterocyclic-N-carboxamide FAAH inhibitors that have a good alignment of potency, metabolicstability and selectivity for FAAH over monoacylglycerol lipase (MAGL) and carboxylesterases (CEs). Lead optimization efforts
A Highly Active Catalyst for Pd-Catalyzed Amination Reactions: Cross-Coupling Reactions Using Aryl Mesylates and the Highly Selective Monoarylation of Primary Amines Using Aryl Chlorides
作者:Brett P. Fors、Donald A. Watson、Mark R. Biscoe、Stephen L. Buchwald
DOI:10.1021/ja8055358
日期:2008.10.15
reactivity for C-N cross-coupling reactions is reported. This catalyst system enables the use of arylmesylates as a coupling partner in C-N bond-forming reactions. Additionally, the use of BrettPhos permits the highly selective monoarylation of an array of primary aliphatic amines and anilines at low catalyst loadings and with fast reaction times, including the first monoarylation of methylamine. Lastly
Cobalt-Catalyzed Switchable Intramolecular Thioenolization/C–H Thiolation and C(sp<sup>2</sup>)–H/C(sp<sup>3</sup>)–H Dehydrogenative Coupling
作者:Zhi Yao、Zhongliang Cai、Long Zhen、Liqin Jiang
DOI:10.1021/acs.orglett.0c01514
日期:2020.6.5
C(sp2)–H/C(sp3)–H dehydrogenativecouplings of N-aryl-N-alkyl-thioamides are developed, providing 2-methylene-2,3-dihydrobenzo[d]thiazoles and thio-oxindoles in moderate to excellent yields from the same precursors, respectively. Details mechanistic studies suggest that the thioenolization/C–H thiolation process involves a radical mechanism, whereas the C(sp2)–H/C(sp3)–H dehydrogenativecoupling might proceed
<b>Selective Pd-Catalyzed Monoarylation of Small Primary Alkyl Amines through Backbone-Modification in Ylide-Functionalized Phosphines (YPhos)</b>
作者:Ilja Rodstein、Daniel Sowa Prendes、Leon Wickert、Maurice Paaßen、Viktoria H. Gessner
DOI:10.1021/acs.joc.0c01771
日期:2020.11.20
Ylide-substituted phosphines have been shown to be excellent ligands for C–N couplingreactions under mild reaction conditions. Here we report studies on the impact of the steric demand of the substituent in the ylide-backbone on the catalytic activity. Two new YPhos ligands with bulky ortho-tolyl (pinkYPhos) and mesityl (mesYPhos) substituents were synthesized, which are slightly more sterically demanding
[EN] QUINOLINE DERIVATIVES AS PHOSPHODIESTERASE INHIBITORS<br/>[FR] DERIVES DE QUINOLEINE UTILISES EN TANT QU'INHIBITEURS DE LA PHOSPHODIESTERASE
申请人:GLAXO GROUP LTD
公开号:WO2004103998A1
公开(公告)日:2004-12-02
There are provided according to the invention novel compounds of formula (I) or pharmaceutically acceptable salts thereof, wherein R1, R2, R19, R20 and R34 are as described in the specification, processes for preparing them, formulations containing them and their use in therapy for the treatment of inflammatory diseases.