The synthesis of 4,5-diamino-8-β-D-ribof
✍
Richard L. Tolman; Leroy B. Townsend
📂
Article
📅
1968
🏛
Elsevier Science
🌐
French
⚖ 165 KB
We wish to report the synthesis of a new tricyclic ring system, pyrazolo[3',~'-5,4]pyrrolo[2,3-d]pyrimidine, by a unique ring closure procedure. In the course of our investigation of the chemistry of the pyrrolo[2,3-dJl~rrimidine nueleoside antibiotics, 3 tubercidin, toyocamycin,