1 AZ0 Ethyl (5s,8s,14s)-14-hydroxy-5,8,11-tris(2-methylpropyl)-3,6,9,12-tetraoxo-1-phenyl-2-oxa-4,7,10,11-tetraazapentadecan-15-oate 1.000 2 AZP (5s,8s,14r)-ethyl 11-(3-amino-3-oxopropyl)-8-benzyl-14-hydroxy-5-isobutyl-3,6,9,12-tetraoxo-1-phenyl-2-oxa-4,7,10,11-tetraazapentadecan-15-oate 0.760