Synthèse de la L‐valyl‐L‐(δ‐carbobenzoxy)‐ornithyl‐L‐leucyl‐D‐phénylalanyl‐L‐proline

Abstract
The synthesis of L‐valyl‐δ‐CBO‐L‐ornithyl‐L‐leucyl‐D‐phényl‐alanyl‐L‐proline, which could be an intermediary product for the synthesis of Gramicidin S, has been achieved.