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
- 1 January 1990
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1990 (11) , 1095-1100
- https://doi.org/10.1055/s-1990-27103
Abstract
Syntheses of 3,4,6,7-tetrahydroimidazo[4,5-e][1,2,4]triazepine-5,8-dione (1a) and its 3- and/or 7-methyl/benzyl substituted derivatives 1b-1e are reported. The structure of 1c is confirmed by single-crystal X-ray diffraction analyses.Keywords
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