申请人:John Wyeth and Brothers Limited
公开号:US05010196A1
公开(公告)日:1991-04-23
N'-Acyl-N-alkyl-1,3-diaminopropanes of formula R.sup.1 CONH(CH.sub.2).sub.3 NHR.sup.2 (where R.sup.1 is R- or RNH where R is a substituted or unsubstituted hydrocarbon group and R.sup.2 is alkyl) are prepared by selectively acylating N-alkyl-1,3-diaminopropanes. In the process a N-alkyl-1,3-aminopropane is reacted with an aldehyde to form a hexahydropyrimidine, the hexahydropyrimidine is acylated and the acylated hexahydropyrimidine is then hydrolyzed to give the product.
式为R.sup.1 CONH(CH.sub.2).sub.3 NHR.sup.2(其中R.sup.1为R-或RNH,其中R为取代或未取代的碳氢基团,R.sup.2为烷基)的N'-酰基-N-烷基-1,3-二氨基丙烷可通过有选择性地酰化N-烷基-1,3-二氨基丙烷制备。在该过程中,将N-烷基-1,3-氨基丙烷与醛反应形成六氢嘧啶,酰化六氢嘧啶,然后水解酰化的六氢嘧啶以得到产物。