Deazapurine derivatives XII. Investigations on the synthesis of 3‐deazaguanine

Abstract
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‐derivative.