Using CCc1ccc(C(=O)O)o1, CCCCCCCCCCCc1cnc(-c2ccc(O)cc2)nc1 to produce CCCCCCCCCCCc1cnc(-c2ccc(OC(=O)c3ccc(CC)o3)cc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.