Using CI, COc1cc(Nc2csc3cnc(Cl)nc23)cc(OC)c1OC to produce COc1cc(N(C)c2csc3cnc(Cl)nc23)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.