Synthesis of benzodiazepine β-turn mimetics by an Ugi 4CC/Staudinger/aza-wittig sequence. Solving the conformational behavior of the Ugi 4CC adducts

1. Sañudo, M.
2. García-Valverde, M.
3. Marcaccini, S.
4. Delgado, J.J.
5. Rojo, J.
6. Torroba, T.