Microwave-Assisted Synthesis of Novel (5-Nitropyridin-2-yl)alkyl and (5-Nitropyridin-3-yl)alkyl Carbamates
作者:Christophe Henry、Andreas Haupt、Sean C. Turner
DOI:10.1021/jo802439d
日期:2009.3.6
straightforward approach to novel (5-nitropyridin-2-yl)alkyl and (5-nitropyridin-3-yl)alkyl carbamate building blocks is presented in this study. Their construction is achieved by condensation of N-carbamate α- and β-amino carbonyl derivatives with 1-methyl-3,5-dinitro-2-pyridone 1 under microwave irradiation. Judiciously chosen modifications in the nature of the parent carbonyl starting material has influenced
Pyridine and pyridazine derivatives have unexpected drug properties as inhibitors of protein kinases and are useful in treating disorders related to abnormal protein kinase activities such as cancer.
The present invention relates to new compounds of general formula (I), wherein the groups R
1
to R
3
, X
1
, X
2
, X
3
and L
1
are defined as in claim
1
, which are suitable for the treatment of diseases characterised by excessive or abnormal cell proliferation, and the use thereof in such a treatment.
The present invention encompasses compounds of general formula (1) wherein the groups R
0
to R
3
and L are defined as in claim
1
, which are suitable for the treatment of diseases characterised by excessive or abnormal cell proliferation, pharmaceutical preparations which contain such compounds and their use as medicaments.