[EN] TRICYCLIC 2,4-DIAMIN0-L,3,5-TRIAZINE DERIVATIVES USEFUL FOR THE TREATMENT OF CANCER AND MYELOPROLIFERATIVE DISORDERS [FR] DÉRIVÉS TRICYCLIQUES DE 2,4-DIAMINO-L,3,5-TRIAZINE UTILES POUR LE TRAITEMENT DU CANCER ET DE TROUBLES MYÉLOPROLIFÉRATIFS
Strategies toward the design of energetic ionic liquids: nitro- and nitrile-substituted N,N′-dialkylimidazolium salts
作者:Alan R. Katritzky、Hongfang Yang、Dazhi Zhang、Kostyantyn Kirichenko、Marcin Smiglak、John D. Holbrey、W. Matthew Reichert、Robin D. Rogers
DOI:10.1039/b509260d
日期:——
Twelve novel 1,3-dialkylimidazolium salts containing strongly electron-withdrawing nitro- and cyano-functionalities directly appended to the cationic heterocyclic rings have been synthesized; the influences of the substituents on both formation and thermal properties of the resultant ionic liquids have been determined by DSC, TGA, and single crystal X-ray diffraction, showing that an electron-withdrawing nitro-substituent can be successfully appended and has a similar influence on the melting behaviour as that of corresponding methyl group substitution. Synthesis of di-, or trinitro-substituted 1,3-dialkylimidazolium cations was unsuccessful due to the resistance of dinitro-substituted imidazoles to undergo either N-alkylation or protonation, while 1-alkyl-4,5-dicyanoimidazoles were successfully alkylated to obtain 1,3-dialkyl-4,5-dicyanoimidazolium salts. Five crystal structures (one of each cation type) show that, in the solid state, the NO2-group has little significant effect, beyond the steric contribution, on the crystal packing.
Condensation of propargylic alcohols with 1,3-dicarbonyl compounds and 4-hydroxycoumarins in ionic liquids (ILs)
作者:Gopalakrishnan Aridoss、Kenneth K. Laali
DOI:10.1016/j.tetlet.2011.10.021
日期:2011.12
Propargylicalcohols are activated toward 1,3-diketones by Lewis or Brønstedacidic ionic liquids (ILs) without an added catalyst, but significantly better conversions are achieved with metallic triflates [in particular Sc(OTf)3 and Ln(OTf)3] and bismuth nitrate in imidazolium ILs. The scope of this condensation reaction was investigated with a variety of propargylicalcohols and a host of acyclic
QUINOLINE AND ISOQUINOLINE DERIVATIVES FOR USE AS JAK MODULATORS
申请人:Faraoni Raffaella
公开号:US20130296363A1
公开(公告)日:2013-11-07
Provided herein are compounds for treatment of JAK kinase mediated diseases, including JAK2 kinase-, JAK3 kinase- or TYK2 kinase-mediated diseases. Also provided are pharmaceutical compositions comprising the compounds and methods of using the compounds and compositions.
[EN] QUINOLINE AND ISOQUINOLINE DERIVATIVES FOR USE AS JAK MODULATORS<br/>[FR] COMPOSÉS QUINOLÉINE ET ISOQUINOLÉINE ET LEURS PROCÉDÉS D'UTILISATION
申请人:AMBIT BIOSCIENCES CORP
公开号:WO2012030944A3
公开(公告)日:2013-10-10
Electrophilic Iodination of 4-Nitroimidazoles - a New High Yielding Method for the Synthesis of 4-Nitro-5-iodoimidazoles
作者:Rao、Rao、Singh
DOI:10.1080/00397919408011194
日期:1994.2
Electrophilic iodination of 4-nitroimidazoles employing the system KI-HN3-AcOH provided for the synthesis of 4-nitro-5-iodoimidazoles in high yields. With 2-unsubstituted-4-nitroimidazoles, 2,5-diiodo-4-nitro-imidazoles were obtained.