Using Ic1ccc2c(ccc3nccn32)c1, CCCCC(CC)COC(=O)CCS to produce CCCCC(CC)COC(=O)CCSc1ccc2c(ccc3nccn32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.