Using C=COC(=O)c1ccc(NCCCCCCCCCCCCCCCC)cc1 to produce CCCCCCCCCCCCCCCCNc1ccc(C(=O)OCCC(=O)OCC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.