25911-65-3Relevant academic research and scientific papers
Novel 1-(2-aminopyrazin-3-yl)methyl-2-thioureas as potent inhibitors of mitogen-activated protein kinase-activated protein kinase 2 (MK-2)
Lin, Songnian,Lombardo, Matthew,Malkani, Sunita,Hale, Jeffrey J.,Mills, Sander G.,Chapman, Kevin,Thompson, James E.,Zhang, Wen Xiao,Wang, Ruixiu,Cubbon, Rose M.,O'Neill, Edward A.,Luell, Silvi,Carballo-Jane, Ester,Yang, Lihu
scheme or table, p. 3238 - 3242 (2010/05/02)
Novel 1-(2-aminopyrazin-3-yl)methyl-2-thioureas are described as inhibitors of mitogen-activated protein kinase-activated protein kinase 2 (MK-2). These compounds demonstrate potent in vitro activity against the enzyme with IC50 values as low as 15 nM, and suppress expression of TNFα in THP-1 cells and in vivo in an acute inflammation model in mice. The synthesis, structure-activity relationship (SAR), and biological evaluation of these compounds are discussed.
Kinase inhibitors and methods of use thereof
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Page/Page column 18, (2010/11/28)
Compositions and methods and are provided for treating disorders associated with compromised vasculostasis. Invention methods and compositions are useful for treating a variety of disorders including for example, stroke, myocardial infarction, cancer, isc
Syntheses of 1-allyl-6-(arylamino)methyl-7-methyl-3-phenylpteridine-2,4-dione, a methanopterin analogue
Tada, Masaru,Wada, Momoko
, p. 648 - 649 (2007/10/03)
The nucleophilic substitution of 2,3-dicyanopyrazine (1) with allylamine is useful for the construction of pteridine ring. A methanopterin analogue, 1-allyl-6-(mesitylamino)methyl-7-methy-3-phenylpteridine (12), was synthesised by this method from 2,3-dic
Studies on Pyrazines. 24. A Simple and Versatile Synthetic Method for 3-Alkoxy- and 3-Aminopyrazinecarbonitriles
Sato, Nobuhiro,Matsui, Nobuo
, p. 1689 - 1692 (2007/10/02)
New and concise synthetic methods of 3-alkoxy- and 3-aminopyrazinecarbonitriles by nucleophilic displacement of 3-phenylsulfonylpyrazinecarbonitriles are reported.
Studies on Pyrazines. Part 22. Lewis Acid-Mediated Cyanation of Pyrazine N-Oxides with Trimethylsilyl Cyanide: New Route to 2-Substituted 3-Cyanopyrazines
Sato, Nobuhiro,Shimomura, Yuji,Ohwaki, Yoshie,Takeuchi, Ryo
, p. 2877 - 2882 (2007/10/02)
Reaction of 3-substituted pyrazine 1-oxides with trimethylsilyl cyanide in the presence of triethylamine in acetonitrile gave the corresponding cyanopyrazines, yields of which depended remarkably on the substituent.Electron-donating groups enhanced the cyanation with high regioselectivity to 2-substituted 3-cyanopyrazines, while a chloro substituent suppressed the conversion.Addition of zinc halide to the reaction mixture, in most cases, increased the reactivity and improved the regioselectivity.On the other hand, the N-oxides carrying an electron-withdrawing methoxycarbonyl or N-butylcarbamoyl group underwent the cyanation, without need for the Lewis acid, to provide a mixture of nearly equal amounts of 2-substituted 3- and 5-cyanopyrazines.The latter compound was exclusively obtained when 3-methoxycarbonyl- or 3-cyanopyrazine 1-oxide was treated with diethoxyphosphoryl cyanide.
Studies on Pyrazines. 18 . A New and Convenient Synthesis of 2-Amino-3-cyanopyrazine
Sato, Nobuhiro
, p. 817 - 819 (2007/10/02)
The titled compound, 2-amino-3-cyanopyrazine (1), was prepared by reaction of 3-aminopyrazine 1-oxide (7) with trimethylsilyl cyanide.Furthermore, conditions of individual steps in synthetic route to 7 starting from 2-pyrazinecarboxamide were optimized.
RING TRANSFORMATIONS OF SOME 4-AMINOPTERIDINE 3-OXIDES AND DERIVATIVES
Kocevar, Marjan,Stanovnik, Branko,Tisler, Miha
, p. 823 - 829 (2007/10/02)
Syntheses of 4-aminopteridine 3-oxides are described.The pyrimidine part undergoes transformations with various reagents to give 4-hydroxyaminopteridines, substituted pyrazines, or substituted 1,2,4-oxadiazolylpyrazines. s-Triazolo(1,5-a)pyrazines can be prepared from 1,2,4-oxadiazolylpyrazines.The ring opening of the pyrimidine part of pteridines proceeds either py a C2-N3 or N3-C4 bond cleavage.
Syntheses and Transformations of Some 1,2,4-Oxadiazolylpyrazines
Kocevar, M.,Stanovnik, B.,Tisler, M.
, p. 1397 - 1402 (2007/10/02)
Cyanopyrazines with an ortho-amino, oxo and other groups are transformed into the corresponding amidoximes.From these the corresponding 1,2,4-oxadiazolyl derivatives can be prepared and interconversions to the corresponding pteridine 3-oxides are described.
SOME NEW SYNTHETIC APPROACHES FOR THE PREPARATION OF PTERIDINE-3-OXIDES AND PTERIDINES
Kocevar, Marjan,Stanovnik, Branko,Tisler, Miha
, p. 293 - 296 (2007/10/02)
Starting from 2-amino-3-cyanopyrazine some new syntheses of 4-substituted pteridines and pteridine-3-oxides have been devised.
NOUVELLE VOIE D'ACCES AU DIETHYLACETAL DE L'AMINO-2 CYANO-3 FORMYL-5 PYRAZINE
Mayer, Jean-Philippe,Fleury, Jean-Pierre
, p. 3759 - 3762 (2007/10/02)
An unequivocal two step synthesis of 2-amino-3-cyano-5-formylpyrazine diethylacetal, starting from dimethylaminoacrolein and O-tosylisonitrosomalononitrile, is described.This pyrazine is a key intermediate for the preparation of folic acid and various analogues.
