Using COc1nc(/C(=C/C2CCCC2)c2ccc(SC)cc2)ccc1C1CC1 to produce CSc1ccc(/C(=C\C2CCCC2)c2ccc(C3CC3)c(=O)[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.