1.
J Org Chem
; 78(17): 8510-23, 2013 Sep 06.
Artículo
en Inglés
| MEDLINE
| ID: mdl-23895184
RESUMEN
Open-chain N-Cbz-protected-peptidoyl benzotriazolides are converted by a novel lactamization strategy using proline as a turn introducer into both symmetrical (5a-c and 11a-c) and unsymmetrical (19a-e) bis-2,5-diketopiperazines (bis-2,5-DKPs), previously recognized as difficult targets.