Controlled ring opening of N-sulfinyl- and N-silyl-N-carboxyanhydrides (NCA): One-pot synthesis of dipeptides and unsymmetrical peptidyl ureas from unprotected NCA
We report herein new labile protecting groups of N-carboxyanhydrides (NCA) useful to prevent polymerization during coupling reactions with nitrogen nucleophiles. Thus, N-sulfinyl-NCA 1 and N-silyl-NCA 2 were prepared in situ and involved, without being is
Mateos-Caro, Julia,Robin, Yves,Levacher, Vincent,Marsais, Francis
experimental part
p. 279 - 283
(2009/06/05)
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