TY - RPRT TI - Solid-phase synthesis and structural characterization of highly substituted hydroxyproline-based 2,5-diketopiperazines AU - A Bianco AU - CP Sonksen AU - P Roepstorff AU - JP Briand PY - 2000 DO - 10.1021/jo991818+ UR - https://pubmed.ncbi.nlm.nih.gov/10774043/ ID - 10774043 ER -