Using COc1cc(S(=O)(=O)N(CCNC(=O)OCc2ccccc2)c2ccc3c(ccn3C)c2)cc(OC)c1OC to produce COc1cc(S(=O)(=O)N(CCN)c2ccc3c(ccn3C)c2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.