[EN] TWO-PHASE METHOD FOR THE SYNTHESIS OF SELECTED PYRAZOLOPYRIMIDINES<br/>[FR] PROCEDE EN DEUX PHASES DESTINE A LA SYNTHESE DE PYRAZOLOPYRIMIDINES SELECTIONNES
申请人:MALLINCKRODT INC
公开号:WO2005070931A1
公开(公告)日:2005-08-04
An improved method of making a substituted pyrazolopyrimidine. The method comprises reacting a aminopyrazole compound or a salt thereof with a substituted 1-oxo-2-propenyl-arene(-heterocycle) or a salt thereof under acidic conditions in a reaction medium including a two-phase mixture of an aqueous solution and a water-immiscible organic liquid. Specific substituted pyrazolopyrimidines include N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide and N-methyl-N-(3-3-[2-thienylcarbonyl]-pyrazolo[1, 5-a]-pyrimidin-7-yl}phenyl)acetamide.
Two-phase method for the synthesis of selected pyrazolopyrimidines
申请人:Cantrell Lee Gary
公开号:US20070155995A1
公开(公告)日:2007-07-05
An improved method of making a substituted pyrazolopyrimidine. The method comprises reacting a aminopyrazole compound or a salt thereof with a substituted 1-oxo-2-propenyl-arene(-heterocycle) or a salt thereof under acidic conditions in a reaction medium including a two-phase mixture of an aqueous solution and a water-immiscible organic liquid. Specific substituted pyrazolopyrimidines include N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide and N-methyl-N-(3-3-[2-thienyl-carbonyl]-pyrazolo[1,5-a]-pyrimidin-7-yl}phenyl)acetamide.