作者:Erkki Honkanen、Aino Pippuri、Pekka Kairisalo、Heinrich Thaler、Maija Koivisto、Sirpa Tuomi
DOI:10.1002/jhet.5570170436
日期:1980.6
A new four step synthesis of prazosin, 2-[4-(2-furoyl)piperazin-l-yl]-4-amino-6,7-dimethoxyquinazoline, has been described. The method is also adaptable for the preparation of other substituted 4-aminoquinazolines. The yields are good in every step and the reactions are performed with ease. Prazosin hydrochloride of high purity is obtained directly in the last step.
已经描述了新的四步合成哌唑嗪2- [4-(2-呋喃基)哌嗪-1-基] -4-氨基-6,7-二甲氧基喹唑啉。该方法也适用于制备其他取代的4-氨基喹唑啉。在每个步骤中产率都很高,并且反应容易进行。在最后一步中直接获得了高纯度的哌唑嗪盐酸盐。