The synthesis of pyrrolo[2, 3-d]pyrimidine derivatives was accomplished by the following two methods. One is the palladium-catalyzed reaction terminal acetylenes with N-(5-halo-4-pyrimidinyl)methanesulfonamides prepared by the nucleophilic substitution of 4-chloro-5-halopyrimidines with methanesulfonamide. The other is the photocyclization of 4-azidopyrimidines containing an olefinic function at the 5-position. The synthesis of 4-azidopyrimidine derivatives is also described.
吡咯并[2,3-d]
嘧啶衍
生物的合成通过以下两种方法完成。一种是
钯催化的末端
乙炔与N-(5-卤代-4-
嘧啶基)甲磺酰胺的反应,通过4-
氯-5-卤代
嘧啶与甲磺酰胺的亲核取代而制备。另一种是5-位含有烯属官能团的4-
叠氮嘧啶的光环化。还描述了4-
叠氮基
嘧啶衍
生物的合成。