Using COC(=O)n1ncc2c(NC(=O)NCC3CCc4ccccc4N3CCc3ccccc3)cccc21 to produce O=C(NCC1CCc2ccccc2N1CCc1ccccc1)Nc1cccc2[nH]ncc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.