Using COc1nc(/C(=C/C2CCCC2)c2ccc(SC)cc2)ccc1Cl to produce CSc1ccc(/C(=C\C2CCCC2)c2ccc(Cl)c(=O)[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.