A large number of N-aminodipeptides compounds have been obtained via a Mitsunobu protocol performed in Solution or by solid-phase synthesis. The oligomerization of some of them has been studied in solution or on solid support leading to the formation of 1:1[alpha:alpha-N-amino]mers. (C) 2008 Elsevier Ltd. All rights reserved.
Original and efficient method for the preparation of N-aminoamide pseudodipeptides in high optical purity
N-Aminoamide pseudodipeptides ZAAΨ[CO-N(NPht)]-AAOR can be easily obtained via the Mitsunobu protocol by using α-hydroxyesters as alcohol partners and aminoacid phthaloyl hydrazide derivatives as acidic partners. The direct conversion of the phthaloyl group into tert-butyloxycarbonyl can be performed in a three-stage one-pot protocol.