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.
一种改进的制备取代
吡唑嘧啶的方法。该方法包括在酸性条件下,将
氨基
吡唑化合物或其盐与取代的1-
氧代-2-
丙烯基
芳烃(杂环)或其盐在反应介质中反应,该反应介质包括
水溶液和不溶于
水的有机液体的两相混合物。具体的取代
吡唑嘧啶包括N-[3-(3-
氰基
吡唑并[1,5-a]
嘧啶-7-基)
苯基]-
N-乙酰胺和N-
甲基-N-(3-3-[2-
噻吩基-羰基]-
吡唑并[1,5-a]-
嘧啶-7-基}
苯基)乙
酰胺。