The synthesis of 4,5-diamino-8-ฮฒ-D-ribof
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Richard L. Tolman; Leroy B. Townsend
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Article
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1968
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Elsevier Science
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French
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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,