[EN] HETEROCYCLIC-FUSED PYRAZOLO[4,3-c]PYRIDIN-3-ONE M1 RECEPTOR POSITIVE ALLOSTERIC MODULATORS<br/>[FR] MODULATEURS ALLOSTÉRIQUES POSITIFS DE RÉCEPTEUR M1 DE PYRAZOLO[4,3-C]PYRIDIN-3-ONE CONDENSÉE AVEC UN HÉTÉROCYCLE
申请人:MERCK SHARP & DOHME
公开号:WO2011041143A1
公开(公告)日:2011-04-07
The present invention is directed to heterocyclic fused pyrazole [4,3-c] pyridine-3-one compounds of formula (I): which are M1 receptor positive allosteric modulators and that are useful in the treatment of diseases in which the M1 receptor is involved, such as Alzheimer's disease, schizophrenia, pain or sleep disorders. The invention is also directed to pharmaceutical compositions comprising the compounds, and to the use of the compounds and compositions in the treatment of diseases mediated by the M1 receptor.
A Rapid and Convenient Synthesis of Naphthyridinoyl Pyrazolidinones under Microwave Irradiation Condition
作者:Muggu V.S.R.K. Chaitanya、Pramod K. Dubey
DOI:10.2174/157017812801264638
日期:2012.5.1
Microwave-assisted synthesis of naphthyridinoylpyrazolidinones (7a-7j) has been achieved rapidly via the
reaction of naphthyridine hydrazide (4) with different β-keto esters and ethoxymethylenemalonic ester (EMME) (5a-5e).
Initially, the reaction of naphthyridine hydrazide (4) with various β-keto esters under microwave irradiation for 5 mins at
130oC results in the formation of condensed products 6a-6j. This condensation was followed by cyclization, also, in
diphenyl ether under microwave irradiation for 10 mins at 230-250oC, yielding the corresponding cyclized products 7a-7j.
Alternatively, both reactants 4 and each of the β -keto esters/EMME (5a-5e) were treated in diphenyl ether under
microwave irradiation for 15 mins at 230-250oC giving the target molecules 7a-7j as one-pot reaction in good yields.
A simple and efficient synthesis of novel naphthyridine-1-<i>H</i>-pyrazole-4-carboxylic acid esters/carbaldehydes using Vilsmeier-Haack reagent
作者:Muggu V.S.R.K. Chaitanya、Pramod K. Dubey
DOI:10.1515/hc-2012-0097
日期:2013.3.1
Cyclization of 6 with Vilsmeier-Haack reagent (DMF-POCl3) for 20 min at room temperature gave 1-(4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carbonyl)-1H-pyrazole-4-carboxylic acid ethyl esters 7. The treatment of 4 with substituted acetophenones 8 yielded the corresponding hydrazones 9 of substituted acetophenones. The treatment of 9 with Vilsmeier-Haack reagent (DMF-POCl3) for 30 min at room temperature
Design, <i>in silico</i> studies, and synthesis of new 1,8-naphthyridine-3-carboxylic acid analogues and evaluation of their H1R antagonism effects
作者:Vinod Kumar Gurjar、Dilipkumar Pal
DOI:10.1039/d0ra00746c
日期:——
in silico computational studies were also performed to predict the binding modes and pharmacokinetic parameters of these derivatives. Prior to the start of experimental lab work, PASS software was used to predict the biological activities of these compounds. An in silico PASS, Swiss ADME assisted docking approach was found to be suitable to derive and synthesize effective antihistaminic agents for
Compounds effective in inhibiting replication of Hepatitis C virus (“HCV”) or other viruses are disclosed. This invention is also directed to compositions comprising such compounds, co-formulation or co-administration of such compounds with other anti-viral or therapeutic agents, processes and intermediates for the syntheses of such compounds, and methods of using such compounds for the treatment of HCV or other viral infections.