Synthesis and structural characterization of palladium(II) thiosemicarbazone complex: application to the Buchwald–Hartwig amination reaction
摘要:
A simple route to synthesize mononuclear palladium(II) thiosemicarbazone complex has been described. Elemental analysis, spectral methods and single crystal X-ray diffraction analysis were used to confirm the composition of the complex. The new complex acts as an active homogeneous catalyst for the Buchwald-Hartwig amination reaction of a wide range of aryl and heteroaryl halides (bromides and chlorides), including activating, neutral and deactivating substrates, with various secondary amines under optimized conditions. (C) 2012 Elsevier Ltd. All rights reserved.
The invention concerns benzamide compounds of Formula (I), or a pharmaceutically acceptable salt thereof, where R
1
, ring A, n, R
3
, and R
4
are as defined in the description. The present invention also relates to processes for the preparation of such compounds, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use as an antiproliferative agent in the prevention or treatment of tumours or other proliferative conditions which are sensitive to the inhibition of EphB4, and/or EphA2 and/or Src kinases.
Two original complexes featuring an (amino)(phosphino)carbene η2-bonded to the metal have been obtained in 60% and 80% yields, by addition of the corresponding stablecarbene to PdCl2(cod) and NiCl2(PPh3)2, respectively. Both complexes have been fully characterized including X-ray diffraction studies. The catalytic activity of the palladium complex has been evaluated for aryl amination reactions.
The invention concerns compounds of Formula I, or a pharmaceutically acceptable salt thereof,
where R
1
, n, R
2
, R
3
, and R
4
are as defined in the description. The present invention also relates to processes for the preparation of such compounds, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use as an antiproliferative agent in the prevention or treatment of tumours or other proliferative conditions which are sensitive to the inhibition of EphB4 kinases.
The present disclosure provides methods of treating and/or preventing inflammatory bowel disease (IBD) and graft-versus-host disease (GVHD) using salt-inducible kinase (SIK) inhibitors, such as macrocyclic SIK inhibitors of Formula (I), imidazolyl SIK inhibitors of Formula (II), and urea and carbamate SIK inhibitors of Formula (III-A) (e.g., urea and carbamate SIK inhibitors of Formula (III)).
[EN] PYRIMIDINE DERIVATIVES<br/>[FR] DERIVES DE PYRIMIDINE
申请人:ASTRAZENECA AB
公开号:WO2007085833A2
公开(公告)日:2007-08-02
[EN] The invention concerns benzamide compounds of Formula (I), or a pharmaceutically acceptable salt thereof, where R1, ring A, n, R3, and R4 are as defined in the description. The present invention also relates to processes for the preparation of such compounds, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use as an antiproliferative agent in the prevention or treatment of tumours or other proliferative conditions which are sensitive to the inhibition of EphB4, and/or EphA2 and/or Src kinases. [FR] La présente invention concerne des composés de benzamide de Formule (I) ou un sel dérivé pharmaceutiquement acceptable, où R1, le cycle A, n, R3, et R4 sont tels qu'énoncés dans la description. La présente invention a aussi trait à des processus de préparation de tels composés, à des compositions pharmaceutiques les contenant et à leur utilisation dans la fabrication d'un médicament à utiliser comme agent antiproliférateur pour la prévention ou le traitement de tumeurs ou d'autres conditions prolifératrices qui sont sensibles à l'inhibition des kinases EphB4, et/ou EphA2 et/ou Src.