5'-Cytidylic acid, 2-(acetylamino)-3-O-(2-((2-((1-carboxy-3-((5,6-diamino-1-carboxy-6-oxohexyl)amino)-3-oxopropyl)amino)-1-methyl-2-oxoethyl)amino)-1-methyl-2-oxoethyl)-2-deoxy-, (1S-(1R*(S*(R*(S*))),5S*))-