Using Clc1cc(NCC2(c3ccc(OCCCN4CCCC4)cc3)CCOCC2)ncn1 to produce c1cc(NCC2(c3ccc(OCCCN4CCCC4)cc3)CCOCC2)ncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.