Using CCS(=O)(=O)NC1CC(C)(C)Oc2ccc(OCc3ccccc3)cc21, CI to produce CCS(=O)(=O)N(C)C1CC(C)(C)Oc2ccc(OCc3ccccc3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.