Using COC(=O)n1ncc2c(NC(=O)NC3CC4(CCCCC4)Oc4ccccc43)cccc21 to produce O=C(Nc1cccc2[nH]ncc12)NC1CC2(CCCCC2)Oc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.