In the presence of nickel acetylacetonate, beta-dicarbonyl compounds readily add at the nitrile group of 4-R-3-cyanofurazans to form enaminofurazans. The adducts obtained from 4-amino-3-cyanofurazan underwent intramolecular cyclization on heating with AcOH in EtOH to give furazano[3,4-b]pyridine derivatives in high yields.
The invention relates to non-peptidic molecules which modulate, especially inhibit, the interaction of protein kinase A (PKA) and A kinase anchor proteins (AKAP) and to a host or target organism that comprises said non-peptidic compounds or recognition molecules directed to said compounds, such as e.g. antibodies or chelating agents. The invention also relates to a pharmaceutical agent, especially for use in the treatment of diseases that are associated with a disturbance of the cAMP signal path, especially insipid diabetes, hypertonia, pancreatic diabetes, duodenal ulcer, asthma, heart failure, obesity, AIDS, edema, hepatic cirrhosis, schizophrenia and others. The invention also relates to the use of the inventive molecules.
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作者:L. S. Vasil"ev、A. B. Sheremetev、N. K. Khoa、Z. K. Dem"yanets、D. E. Dmitriev、V. A. Dorokhov
DOI:10.1023/a:1014075327382
日期:——
In the presence of nickel acetylacetonate, beta-dicarbonyl compounds readily add at the nitrile group of 4-R-3-cyanofurazans to form enaminofurazans. The adducts obtained from 4-amino-3-cyanofurazan underwent intramolecular cyclization on heating with AcOH in EtOH to give furazano[3,4-b]pyridine derivatives in high yields.
The first synthesis of furazano[3,4-<i>b</i>][1,6]naphthyridines
作者:Leonid S. Vasilev、Aleksei B. Sheremetev、Vladimir A. Dorokhov、Kyrill Yu. Suponitsky
DOI:10.1002/jhet.5570440415
日期:2007.7
Reaction of 6-acetyl-7-aminofurazano[3,4-b]pyridines with DMFDMA afforded N,N-dimethylformamidines that were cyclized to the novel furazan-fused [1,6]naphthyridine system by treatment with sodium methylate in good yield. The tricyclic system is characterized by X-ray crystallography.
使6-乙酰基-7-氨基呋喃并[3,4- b ]吡啶与DMFDMA反应,得到N,N-二甲基甲am ,通过用甲醇钠处理,将其环化成新颖的呋喃山稠合的[1,6]萘啶体系。三环体系的特征在于X射线晶体学。