have been synthesized. Some of the substituents in position 6 were used to build up different sulfur-, nitrogen- and/or oxygen-containing heterocyclic rings at that position. The 4-methyl-2-phenyl-5-(1-pyrryl)-thieno[2,3-d]pyrimidine-6-carboazide ( 20 ) was also used as a key intermediate in the synthesis of the target pyrrolo[1",2":1',6']pyrazino[2',3':4,5]thieno[2,3-d]pyrimidines.
4-甲基-2-苯基-5-(1-
吡咯基)-6-取代的-
噻吩并[2,3-d]
嘧啶(3a-c、4a-c、5a、b和6)已被合成。6 位的一些取代基用于在该位置构建不同的含
硫、氮和/或氧的杂环。4-methyl-2-phenyl-5-(1-pyrryl)-thieno[2,3-d]pyrimidine-6-carboazide ( 20 ) 也被用作合成目标
吡咯并[1" ,2":1',6']
吡嗪并[2',3':4,5]
噻吩并[2,3-d]
嘧啶。