Using CCOC(=O)C1(COS(C)(=O)=O)CC1, Cc1c(O)ccc(OCc2ccccc2)c1C to produce CCOC(=O)C1(COc2ccc(OCc3ccccc3)c(C)c2C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.