The attempted synthesis of 3-deazaguanine along two pathways has lead to several new imidazo[4,5-c]pyridines. 3-Deazaguanine itself could not be isolated from the preceding 2-(carbamate acetyl-)amino-deriva tive.In the scope of investigations on I -and 3-deaza analogues of adenine and guanine, so far only I-and 3-deazaadenine' ' and
Das nach bekannter Methode aus dem Pyridin (Ia) dargestellte Imidazopyridin (IIa) gibt beim Erhitzen mit konz. NH3 im Bombenrohr das Aminoderivat (III).
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