Provided are novel heterocyclic compounds useful as anti-cancer drugs by suppressing protein kinase activities of growth factor receptors such as c-Met, pharmaceutical compositions containing the same, and methods for using the compound.
N-Aminopyrroledione–hydrazonoketene–pyrazolium oxide–pyrazolone rearrangements and pyrazolone tautomerism
作者:Sieglinde Ebner、Bianca Wallfisch、John Andraos、Ilyas Aitbaev、Michael Kiselewsky、Paul V. Bernhardt、Gert Kollenz、Curt Wentrup
DOI:10.1039/b304070d
日期:——
Flash vacuum thermolysis (FVT) of 1-(dimethylamino)pyrrole-2,3-diones 5 causes extrusion of CO with formation of transient hydrazonoketenes 7. The transient ketenes 7 are observable in the form of weak bands at 2130 (7a) or 2115 cm-1 (7b) in the Ar matrix IR spectra resulting from either FVT or photolysis of either 5 or 1,1-dimethylpyrazolium-5-oxides 8, and these absorptions are in excellent agreement
Provided are novel heterocyclic compounds useful as anti-cancer drugs by suppressing protein kinase activities of growth factor receptors such as c-Met, pharmaceutical compositions containing the same, and methods for using the compound.