(2R)-3-[4-(18-{N-[(1S)(3,5-Dichloro-4-hydroxyphenyl)carboxymethyl]carbamoyl}(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