名称:
Synthesis of a Novel Ring-Expanded Xanthine Analogue and Several Methyl or Benzyl Derivatives Containing the 5:7-Fused Imidazo [4,5-e][1,2,4]triazepine Ring System
摘要:
报告了3,4,6,7-四氢咪唑[4,5-e][1,2,4]三氮烯-5,8-二酮(1a)及其3-和/或7-甲基/苄基取代衍生物1b-1e的合成。通过单晶X射线衍射分析确认了1c的结构。