Using O=C(c1cc2cc(O[C@H]3CCN(Cc4ccccc4)C3)ccc2[nH]1)N1CCOCC1 to produce O=C(c1cc2cc(O[C@H]3CCNC3)ccc2[nH]1)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.