Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A series of bridged 1,4-diazepanes (ie, diazabicyclo[n.3.2]alkanes, n = 3–5) selectively protected at one of the nitrogen atoms was prepared, for possible application in drug design, via Schmidt rearrangement of the corresponding ketones. ... Aliphatic diamines exemplify privileged structures ...