Using COC(=O)CCS(C)(=O)=O, CCCn1c(=O)[nH]c2nc(C(C)(C)C)n(Cc3ccccc3)c2c1=O to produce CCCn1c(=O)c2c(nc(C(C)(C)C)n2Cc2ccccc2)n(CCC(=O)OC)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.