Synthesis of 5-arylamino-1-arylpyrazoles from 5-aminopyrazoles with arylhalides via CuI catalyzed Ullman coupling reaction
作者:En-Chiuan Chang、Chun-Yen Chen、Li-Ya Wang、Yu-Ying Huang、Mou-Yung Yeh、Fung Fuh Wong
DOI:10.1016/j.tet.2012.11.022
日期:2013.1
An efficient method for synthesis of 5-arylamino-1-arylpyrazoles was developed by Ullman coupling reaction of 5-aminopyrazoles and arylhalides in the presence of cuprous iodide (CuI) as the catalyst. The corresponding 5-N-arylaminopyrazole products were obtained in good yields (>= 65%). (c) 2012 Elsevier Ltd. All rights reserved.
One-pot synthesis and antiproliferative evaluation of pyrazolo[3,4-d]pyrimidine derivatives
An efficient one-pot methodology for the synthesis of pyrazolo[3,4-d]pyrimidines was developed by using 5-aminopyrazoles with formamide in presence of PBr3 as the coupling agent. Among the examples presented in this work, compounds 41 and 54-56 with phenyl or 2-quinolinyl groups at N-1 and p-Me-Ph, p-Cl-Ph, or p-OMe-Ph group at C-3 position in the pyrazole ring possessed better potency against NCl-H226 and NPC-TW01 cancer cells with GI(50) values between 18 mu M and 39 mu M. (c) 2012 Elsevier Ltd. All rights reserved.
ANILINOPYRAZOLE DERIVATIVES USEFUL FOR THE TREATMENT OF DIABETES
申请人:Bayer HealthCare, LLC
公开号:EP1928455A1
公开(公告)日:2008-06-11
[EN] ANILINOPYRAZOLE DERIVATIVES USEFUL FOR THE TREATMENT OF DIABETES<br/>[FR] DERIVES D'ANILINOPYRAZOLE UTILISES DANS LE TRAITEMENT DU DIABETE
申请人:BAYER PHARMACEUTICALS CORP
公开号:WO2007027842A1
公开(公告)日:2007-03-08
[EN] The present invention relates to anilinopyrazole compounds of formula (1) in which R3 represents an aromatic 5- or 6-membered heteroaromatic ring which is optionally fused to phenyl, said heterocycle or fused heterocycle is optionally substituted, X represents a carboxylic acid, ester or amide, or sulfonamide, and the remaining groups are as defined in the text. It also relates to pharmaceutical compositions containing these materials and, and methods for treating diabetes and related disorders using these materials. [FR] La présente invention concerne des composés d'anilinopyrazole représentés par la formule (I) dans laquelle R3 désigne un noyau hétéroaromatique à 5 ou 6 chaînons qui est éventuellement fusionné à phényle, ledit hétérocycle ou hétérocycle fusionné étant éventuellement substitué, X désigne acide carboxylique, ester ou amide, ou sulfonamide et les groupes restants sont tels que définis dans la description. Cette invention concerne également des compositions pharmaceutiques contenant ces matériaux ainsi que des méthodes permettant de traiter le diabète et des troubles associés à l'aide de ces matériaux.