Using O=C1CCC(=O)O1, Nc1cc(Oc2ccc3c(ccn3C(=O)NC3CC3)c2)ccn1 to produce CC(=O)Nc1cc(Oc2ccc3c(ccn3C(=O)NC3CC3)c2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.