Using O=CC1=C(Cl)c2ccccc2N(C(=O)c2ccc([N+](=O)[O-])cc2)CC1, CCOC(=O)CS to produce CCOC(=O)c1cc2c(s1)-c1ccccc1N(C(=O)c1ccc([N+](=O)[O-])cc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.