Mono- and Di-substituted 5,6-Diphenyl-3-alkylaminopyridazines Active as ACAT Inhibitors
作者:Lucio Toma、Maria Paola Giovannoni、Vittorio Dal Piaz、Byoung-Mog Kwon、Young-Kook Kim、Arianna Gelain、Daniela Barlocco
DOI:10.3987/com-01-9351
日期:——
A series of mono- or di-para-substituted 5,6-diphenyl-3-alkylaminopyridazines were synthesized and their inhibitory activity against acylCoA:cholesterol acyltransferase (ACAT) was tested on the enzyme prepared from rat liver microsomes. The compound which combines a chlorine atom on the 6-phenyl ring and a n-hexylamino chain showed a significant enhancement of activity with respect to the unsubstituted derivative. Attempts to correlate the activity of the compounds to their structural features, also through theoretical calculations, are reported.
Pyridazines. Part 26: Efficient and Regioselective Pd-Catalysed Arylation of 4-Bromo-6-chloro-3-phenylpyridazine
作者:Eddy Sotelo、Enrique Raviña
DOI:10.1055/s-2002-19761
日期:——
The regioselectivearylation at position 4 of 4-bromo-6-chloro-3-phenylpyridazine has been performed using a Suzukicross-couplingreaction. This route allows access to a wide-ranging series of pharmacologically useful pyridazine derivatives and confirms the usefulness of chloropyridazines as a masking group for the carbonyl moiety in cross-couplingreactions involving 5-bromo-3(2H)-pyridazinones.