Using O=C1NC(=O)C(Cc2ccc(O)c3c2CCC(=O)N3Cc2ccccc2)S1, CCCCI to produce CCCCOc1ccc(CC2SC(=O)NC2=O)c2c1N(Cc1ccccc1)C(=O)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.