A new, one-pot, multicomponent synthesis of 5-aza-9-deaza-adenines under microwave irradiation
作者:Felicia Phei Lin Lim、Giuseppe Luna、Anton V. Dolzhenko
DOI:10.1016/j.tetlet.2014.07.105
日期:2014.9
A new, practical, three-component method for the synthesis of 5-aza-9-deaza-adenines is developed. Aminopyrazoles react in a one-pot fashion with triethyl orthoformate and cyanamide undermicrowave irradiation affording 5-aza-9-deaza-adenines in good yields and high purity. The main advantages of this method are the operational simplicity, accessibility, and high efficiency.
Thermolysis in solution of 5-azidoisoxazoles with formyl, acetyl or N-phenylimino in the 4-position led to the formation of bicyclic products; in the absence of such 4-substituents, ring-opening resulted and in two instances the expected nitrosoalkene intermediate was successfully trapped with 2,3-dimethylbuta-1,3-diene.
The invention relates to the use of pyrazolo[1,5a]pyrimidin-7-yl amine compounds and salts thereof in the treatment of kinase dependent diseases and for the manufacture of pharmaceutical preparations for the treatment of said diseases, novel pyrazolo[1,5a]pyrimidin-7-yl amine compounds, and a process for the preparation of the novel pyrazolo[1,5a]pyrimidin-7-yl amine compounds.
Use of Pyrazolo(1,5A)Pyrimidin-7-YL Amine Derivatives in the Treatment of Neurological Disorders
申请人:Sivasankaran Rajeev
公开号:US20090069315A1
公开(公告)日:2009-03-12
The invention relates to methods of using the compounds of the invention, including pyrazolo[1,5a]pyrimidin-7-yl amine compounds and salts thereof, as well as pharmaceutical compositions comprising the same, in the treatment of Eph receptor-related (e.g., neurological) injuries and disorders. The invention also relates to modulating the activity of an Eph receptor in a cell, stimulating neural regeneration, and reversing neuronal degeneration, by administering a compound of the invention to a cell or subject in an effective amount.
[EN] PYRAZOLO[1,5-A]PYRIMIDIN-7-YL-AMINE DERIVATIVES FOR USE IN THE TREATMENT OF PROTEIN KINASE DEPENDENT DISEASES<br/>[FR] DERIVES DE PYRAZOLO[1,5-A]PYRIMIDIN-7-YL-AMINE DESTINES A ETRE UTILISES DANS LE TRAITEMENT DE MALADIES DEPENDANTES DE LA PROTEINE KINASE
申请人:NOVARTIS AG
公开号:WO2005070431A1
公开(公告)日:2005-08-04
The invention relates to the use of pyrazolo[1,5a]pyrimidin-7-yl amine compounds and salts thereof in the treatment of kinase dependent diseases and for the manufacture of pharmaceutical preparations for the treatment of said diseases, novel pyrazolo[1,5a]pyrimidin-7-yl amine compounds, and a process for the preparation of the novel pyrazolo[1,5a]pyrimidin-7-yl amine compounds.