Using O=C(O)c1ccc(CCCC2SCC(=O)N2CCC2(O)CCCCC2)cc1, CC(=O)OC(C)=O to produce CC(=O)OC1(CCN2C(=O)CSC2CCCc2ccc(C(=O)O)cc2)CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.