Regioselective Synthesis of 3-Carbo-5-phosphonylpyrazoles through a One-Pot Claisen-Schmidt/1,3-Dipolar Cycloaddition/Oxidation Sequence
作者:Anthony R. Martin、Kishor Mohanan、Loic Toupet、Jean-Jacques Vasseur、Michael Smietana
DOI:10.1002/ejoc.201100167
日期:2011.6
A one-pot reaction involving an aldehyde, a methyl ketone, and the Bestmann-Ohira reagent has been developed for the synthesis of variously substituted 3-carbo-5-phosphonylpyrazoles. Our synthetic methodology features a domino Claisen- Schmidt/1,3-dipolar cycloaddition/oxidationsequence,which leads to the target compounds in excellent yields. We further demonstrated that this unprecedented sequence
[EN] ALLOSTERIC INHIBITORS OF ATYPICAL PROTEIN KINASES C<br/>[FR] INHIBITEURS ALLOSTÉRIQUES DE PROTÉINES KINASES C ATYPIQUES
申请人:UNIV SAARLAND
公开号:WO2015075051A1
公开(公告)日:2015-05-28
The invention provides specific small molecule compounds that allosterically regulate the activity of atypical protein kinase C, their use as a medicament, and their use in the treatment and prevention of allergic, inflammatory and autoimmune disorders, cancer, hyperproliferation, sepsis, viral and protozoan infections, dementing diseases, metabolic, sclerotic and osteoporotic disorders.
one-step synthetic protocol toward multifunctionalized m-terphenyls 5 and sulfonyl m-terphenyls 6 is developed from substituted chalcones 1 and allyl sulfone 2 in good yields via a [3C+3C] annulation. The NaH-mediated annulation features transition metal catalyst-free condition. Chalcones 1 with the functional groups tolerance are easily prepared via Claisen–Schmidt condensation of substituted benzaldehydes
Discovery and Optimization of 1,3,5-Trisubstituted Pyrazolines as Potent and Highly Selective Allosteric Inhibitors of Protein Kinase C-ζ
作者:Mohammad Abdel-Halim、Britta Diesel、Alexandra K. Kiemer、Ashraf H. Abadi、Rolf W. Hartmann、Matthias Engel
DOI:10.1021/jm500521n
日期:2014.8.14
kinase C, PKCζ, might be a therapeutic target in pulmonary and hepatic inflammatory diseases. However, targeting the highly conserved ATP-binding pocket in the catalytic domain held little promise to achieve selective inhibition. In the present study, we introduce 1,3,5-trisubstituted pyrazolines as potent and selective allosteric PKCζ inhibitors. The rigid scaffold offered many sites for modification
<sup>13</sup>C NMR spectroscopy of heterocycles: 1-phenyl-3-aryl/<i>t</i>-butyl-5-arylpyrazoles
作者:Amy N. Hockstedler、Beatrice A. Edjah、Saajid Z. Azhar、Hadrian Mendoza、Nicole A. Brown、Hayley B. Arrowood、Andrew C. Clay、Anand B. Shah、Glenda M. Duffek、Jianmei Cui、Alfons L. Baumstark
DOI:10.1515/hc-2017-0034
日期:2017.4.1
and 13Pz–15Pz, were collected in DMSO-d6 at 50°C. A plot of the C4 chemicalshifts for 1Pz–12Pz versus Hammet constants for 5-aryl substituents yielded a very good linear correlation (R2=0.96) with a slope of 1.5. The chemicalshiftdata for C4 showed little or no dependence on 3-aryl substituents. The result for 13Pz–15Pz, despite only three points, was consistent with the first series results and