[EN] PYRROLOPYRIMIDINE COMPOUNDS, USE AS INHIBITORS OF THE KINASE LRRK2, AND METHODS FOR PREPARATION THEREOF [FR] COMPOSÉS DE PYRROLOPYRIMIDINE, LEUR UTILISATION À TITRE D'INHIBITEURS DE LA KINASE LRRK2, ET LEURS PROCÉDÉS DE PRÉPARATION
A new preparative method for the synthesis of 3(5)-amino-4-nitropyrazole starting from accessible 3(5)-methylpyrazole has been elaborated. Nitration of the former affords 3(5)-nitramino-4-nitropyrazole or 1,4-dinitro-3-aminopyrazole, depending on the reaction conditions.
Synthesis and enzymic activity of 6-carbethoxy- and 6-ethoxy-3,7-disubstituted pyrazolo[1,5-a]pyrimidines and related derivatives as adenosine cyclic 3',5'-phosphate phosphodiesterase inhibitors
作者:Robert H. Springer、M. B. Scholten、Darrell E. O'Brien、Thomas Novinson、Jon P. Miller、Roland K. Robins
DOI:10.1021/jm00345a009
日期:1982.3
3,7-disubstituted 6-carbethoxypyrazolo [1,5-a] pyrimidines and 3,7-disubstituted 6-ethoxypyrazolo-[1,5-a]pyrimidines have been prepared and evaluated as adenosine cyclic 3',5'-phosphate (cAMP) phosphodiesterase (PDE) inhibitors vs. the low Km enzyme isolated from beef heart, rabbit lung, and kidney preparations. The results were found to be between 0.5 to 13 times as potent as theophylline as inhibitors
In this paper, N-arylations between two heteroaryl compounds were studied. Conditions were found to generate selectively either 3- or 5-heteroarylamino-1,2,4-triazines by investigating anionic processes (use of bases such as 2,2‘,6,6‘-tetramethylpiperidine/tBuOK/nBuLi) or Pd-catalyzed N-arylations [Pd(OAc)2, xantphos]. These methods were successfully applied to a wide variety of heteroarylamines and
本文研究了两个杂芳基化合物之间的N-芳基化作用。通过研究阴离子过程(使用碱,例如2,2',6,6'-四甲基哌啶/ t BuOK / n BuLi)发现条件可选择性生成3-或5-杂芳基氨基-1,2,4-三嗪。Pd催化的N-芳基化[Pd(OAc)2,xantphos]。这些方法已成功应用于多种杂芳基胺,使我们能够继续进行熔融多氮化合物合成的研究。
[EN] FUSED PYRIMIDINE COMPOUNDS, COMPOSITIONS AND MEDICINAL APPLICATIONS THEREOF<br/>[FR] COMPOSÉS DE PYRIMIDINE FUSIONNÉS, COMPOSITIONS ET APPLICATIONS MÉDICALES ASSOCIÉES
申请人:JUBILANT BIOSYS LTD
公开号:WO2021062327A1
公开(公告)日:2021-04-01
The present disclosure relates to a class of fused pyrimidine compounds of Formula I, their stereoisomers, tautomers, pharmaceutically acceptable salts, polymorphs, solvates, and hydrates thereof. The present disclosure also relates to a process of preparation of these fused pyrimidine compounds, and to pharmaceutical compositions containing them.
between compounds with pyrazolo[1,5-a]pyrimidine structure (series 4-6) and pyrazolo[5,1-c][1,2,4]triazine core (series 9) as ligands at GABAA-receptor subtype, was evaluated. Moreover, for pyrazolotriazine derivatives having binding recognition, the interaction on recombinant rat α(1-3,5) GABAA receptor subtypes, was performed. Among these latter, emerge compounds 9c, 9k, 9l, 9m and 9n as α1-selective
[EN] 7-SUBSTITUTED 3-NITRO-PYRAZOLO `1,5-A! PYRIMIDINES<br/>[FR] 3-NITRO-PYRAZOLO[1,5-A]PYRIMIDINES SUBSTITUÉES EN POSITION 7
申请人:FERRER INT
公开号:WO2005014596A1
公开(公告)日:2005-02-17
The present invention relates to compounds of Formula (I): wherein R1 is as defined in the claims. The compounds have specific affinity for the GABAA receptor and are therefore useful in the treatment and prevention of diseases modulated by the α1- and α2- GABAA receptors.