The reaction of ethyl 5-oxo-3-arylamino-2,5-dihydroisoxazole-4- carboxylates with 2-chloropyrimidine and 2-chlorobenzoxazole gave the corresponding isoxazolones with pyrimidine and benzoxazole rings substituted on N-2. Their rearrangements with triethylamine in ethanol produced the corresponding imidazopyrimidine and aminoindole derivatives, respectively, through intramolecular cyclisation.
5-oxo-3-aryamino-2,5-dihydroisoxazole-4- carboxylates 与 2-chloropyrimidine 和 2-chlorobenzoxazole 反应,得到相应的
异噁唑酮,
嘧啶和苯并
噁唑环的 N-2 被取代。它们与
三乙胺在
乙醇中进行重排,通过分子内环化作用,分别生成了相应的
咪唑嘧啶和
氨基
吲哚衍
生物。