Synthesis of pyrimido [4,5-c] pyridazine (4-deazafervenulin), pyrazolo[3,4-<i>d</i>] pyrimidine and 6-(pyrazino-1-yl)pyrimidine derivatives
作者:Vishnu J. Ram、Hrishi Kesh Pandey、Arnold J. Vlietinck
DOI:10.1002/jhet.5570170631
日期:1980.9
The synthesis of several pyrimido[4,5-c]pyridazine (4-deazafervenulin) (1), pyrazolo[3,4-d]-pyrimidine (2) and 6-(pyrazino-1-yl)pyrimidine (9) analogs has been accomplished from 6-hydrazinouracil (3). This compound could not be used as starting material for the preparation of indolo[3,2-c]pyridazino[3,4-d]pyrimidine derivatives (8) because it yielded the corresponding hydrazones (7).
几种嘧啶并[4,5-c]哒嗪(4-脱氮铁传递蛋白)(1),吡唑并[3,4- d ]-嘧啶(2)和6-(吡嗪-1-基)嘧啶(9)类似物的合成由6-肼基尿嘧啶(3)完成。该化合物不能用作制备吲哚并[3,2-c]吡啶并[3,4- d ]嘧啶衍生物的起始原料(8),因为它能生成相应的(7)。