Using O=C(CCCOc1cccc(CN2CCCCC2)c1)Nc1nc(CCc2ccccc2)n[nH]1 to produce c1ccc(CCc2n[nH]c(NCCCCOc3cccc(CN4CCCCC4)c3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.