2,6,11,15,21,24-Hexaazahexacosanoic acid,23-[2-(2-amino-3,4-dioxo-1-cyclobuten-1-yl)ethyl]-6,11-bis[(1,1-dimethylethoxy)carbonyl]-26-(1H-indol-3-yl)-14,22,25-trioxo-, 1,1-dimethylethylester, (23S)-
CAS No. 664333-85-1