A Simple, Efficient Synthesis of N6-[bis(ethylamino) methylene]-N2-[(1,1-dimethylethoxy)carbonyl]-lysine (Boc-diethylhomoarginine)

Abstract
The synthesis of N6-(bis(ethylamino)methylene]-N2-[(1,1-dimethyl ethoxycarbonyl] lysine (Boc-diethylhomoarginine) by regiospecific amidination of lysine with (ethylamino) (ethylimino)-methanesulfonic acid (2) is described.