21-(4-{(2R)-2-[(2S)-2-Amino-2-(3,5-dichloro-4-hydroxyphenyl)-N-methylacetylamino]-2-carboxyethyl}phenoxy)(15S,12R,18R)-12-amino-8,14,17-triaza-15-(3,5-dichloro-4-hydroxyphenyl)-22-hydroxy-13,16-dioxotetracyclo[17.3.1.0<2,7