Using CC(=O)SC1c2ccccc2COc2ccc(OCc3ccc4ccc(Cl)cc4n3)cc21 to produce SC1c2ccccc2COc2ccc(OCc3ccc4ccc(Cl)cc4n3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.