Hybrid-Designed Inhibitors of p38 MAP Kinase Utilizing N-Arylpyridazinones
摘要:
Imidazo[1,2-alpha]pyridyl N-arylpyridazinones were hybridized from the classic pyridinylimidazoles and the more recent dual hydrogen bond acceptors, resulting in a new structural class of selective p38 MAP kinase inhibitors.
Synthesis of β-Keto Esters by Carbonylation of Halomethylketones
作者:A. L. Lapidus、O. L. Eliseev、T. N. Bondarenko、O. E. Sizan、A. G. Ostapenko、I. P. Beletskaya
DOI:10.1055/s-2002-20027
日期:——
A number of β-keto esters were synthesized by Pd-catalyzed carbonylation of halomethylketones in the presence of tributylamine in 68-86% yields. The reaction is completed in 2 hours at 110 °C and 10 bar CO pressure. Chloromethylketones are carbonylated selectively while 2-bromoacetophenone is partly reduced to acetophenone as a byproduct. The reaction can be carried out at atmospheric pressure though the rate stays low. The reaction mechanism is discussed.
Hybrid-Designed Inhibitors of p38 MAP Kinase Utilizing <i>N</i>-Arylpyridazinones
作者:Steven L. Colletti、Jessica L. Frie、Elizabeth C. Dixon、Suresh B. Singh、Bernard K. Choi、Giovanna Scapin、Catherine E. Fitzgerald、Sanjeev Kumar、Elizabeth A. Nichols、Stephen J. O'Keefe、Edward A. O'Neill、Gene Porter、Koppara Samuel、Dennis M. Schmatz、Cheryl D. Schwartz、Wesley L. Shoop、Chris M. Thompson、James E. Thompson、Ruixiu Wang、Andrea Woods、Dennis M. Zaller、James B. Doherty
DOI:10.1021/jm025585h
日期:2003.1.1
Imidazo[1,2-alpha]pyridyl N-arylpyridazinones were hybridized from the classic pyridinylimidazoles and the more recent dual hydrogen bond acceptors, resulting in a new structural class of selective p38 MAP kinase inhibitors.
Transition metal-free one-pot synthesis of 2-substituted 3-carboxy-4-quinolone and chromone derivatives
作者:Jian-Ping Lin、Ya-Qiu Long
DOI:10.1039/c3cc41690a
日期:——
A novel one-pot synthesis of the 2-substituted 3-carboxy-4-quinolone/chromone derivatives from readily available 3-oxo-3-arylpropanoates and amides/acyl chlorides is reported, without any transition metal aid.