Using CC(C)C(=O)OCCOC(=O)Oc1ccc(S(C)(=O)=O)cc1, NCC1(CC(=O)O)CCCCC1 to produce CC(C)C(=O)OCCOC(=O)NCC1(CC(=O)O)CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.