Using O=C1c2ccccc2C(=O)N1CCCCN1CCC(n2c(=O)[nH]c3ccccc32)CC1 to produce NCCCCN1CCC(n2c(=O)[nH]c3ccccc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.