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Methyl (11R,14S,16E)-8-acetamido-11-[4-(chloroamino)butyl]-9,12-dioxo-10,13,24-triazatetracyclo[17.3.1.12,6.13,22]pentacosa-1(22),2,4,6(25),16,19(23),20-heptaene-14-carboxylate


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