Novel 1-(cyanoalkyl)-4-guanylpiperazine acid salts are prepared by reacting novel 1-(cyanoalkyl)piperazines with cyanamide in the presence of an acid. The novel 1-(cyanoalkyl)-4-guanylpiperazine acid salts are advantageously employed to prepare 1-(cyanoalkyl)-4-(2-pyrimidyl)piperazines by reacting them with malonaldehyde in an acidic medium.
通过在酸的存在下将新型1-(
氰基烷基)
哌嗪与
氰胺反应,制备了新型1-(
氰基烷基)-4-
鸟嘌呤哌嗪酸盐。这些新型1-(
氰基烷基)-4-
鸟嘌呤哌嗪酸盐优点地用于在酸性介质中与马来醛反应,制备1-(
氰基烷基)-4-(2-
嘧啶基)
哌嗪。