Using CI, CC(O)c1nn(C2CCCCO2)c2cc(OCc3ccccc3)ccc12 to produce COC(C)c1nn(C2CCCCO2)c2cc(OCc3ccccc3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.