Using COc1c(C)cc(C(=O)O)cc1C, CCNc1cccnc1N1CCNCC1 to produce CCNc1cccnc1N1CCN(C(=O)c2cc(C)c(OC)c(C)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.