Using COC(=O)c1ccc(C(=O)c2c(N)sc3c2CCCC3)cc1, CC(=O)CC(=O)C1CC1 to produce COC(=O)c1ccc(-c2c(C(=O)C3CC3)c(C)nc3sc4c(c23)CCCC4)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.