One pot synthesis of selenocysteine containing peptoid libraries by Ugi multicomponent reactions in water

Abstract
Selenocysteine containing peptoids and peptide–peptoid conjugates were synthesized by combinatorial Ugi-MCRs (multicomponent reactions) in water: for the first time, an acetal (selenoacetal 2a) was used in Ugi-MCR to furnish selenocysteine peptoids in one step as model compounds for selenocysteine peptides and proteins.