11,14,17-Trioxa-2,8,20-triazahexacosanoic acid, 7-carboxy-26-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-9,21-dioxo-, 1-(1,1-dimethylethyl) ester, (7S)-
11,14,17-Trioxa-2,8,20-triazahexacosanoic acid, 7-carboxy-26-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-9,21-dioxo-, 1-(1,1-dimethylethyl) ester, (7S)-