New [<i>f</i>]-fused xanthines: Synthesis of 1,3-dipropyl-1<i>H</i>,3<i>H</i>-pyrazino, pyrido, pyrimido and pyrrolo[2, 1-<i>f</i>]purine-2,4-diones
作者:Franco Gatta、Maria Rosaria Del Giudice、Anna Borioni、Carlo Mustazza
DOI:10.1002/jhet.5570310115
日期:1994.1
Synthesis of 1,3-dipropyl-1H,3H-pyrazino, pyrido, pyrimido and pyrrolo[2,1-f]purine-2,4-diones, starting from 5,6-diamino-1,3-dipropylpyrimidine-2,4-dione 1 and 6-chloro-1,3-dipropylpyrimidine-2,4-dione 14 is described. A new synthetic approach to 1,3-dipropyl-1H,3H-pyrido(or pyrazino)[1′,2′-1,2]pyrimido[4,5-d]pyrimidine-2,4,5-triones 19 e, f, h has been also developed.
从5,6-二氨基-1,3-二丙基嘧啶-开始,合成1,3-二丙基-1 H,3 H-吡嗪并,吡啶基,嘧啶基和吡咯并[2,1 - f ]嘌呤-2,4-二酮。描述了2,4-二酮1和6-氯-1,3-二丙基嘧啶-2,4-二酮14。1,3-二丙基-1 H,3 H-吡啶(或吡嗪并)[1',2'-1,2]嘧啶[4,5 - d ]嘧啶-2,4,5-三酮的合成新方法还开发了19 e,f,h。