Synthesis of pseudopeptidic (S)-6-amino-5-oxo-1,4-diazepines and (S)-3-benzyl-2-oxo-1,4-benzodiazepines by an Ugi 4CC Staudinger/aza-Wittig sequence

1. Lecinska, P.
2. Corres, N.
3. Moreno, D.
4. García-Valverde, M.
5. Marcaccini, S.
6. Torroba, T.