Using COC(=O)c1ccc(Cn2c(N3CCCC3)nc3ccccc32)cc1 to produce O=C(O)c1ccc(Cn2c(N3CCCC3)nc3ccccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.