(1'S,2'S,15S,18R)-18-[2'-[[(1,1-DIMETHYLETHOXY)CARBONYL]AMINO]-1'-HYDROXY-3'-PHENYLPROP-1'-YL]-15-(1-METHYLETHYL)-13,16,19-TRIAZA-1,4,7,10-TETRAOXA-14,17-DIOXO[20]PARACYCLOPHANE [ 180968-37-0 ]