Using COc1cc(N2CCNCC2)cc(OC)c1OC, OC(CCCl)COc1ccccc1 to produce COc1cc(N2CCN(CCC(O)COc3ccccc3)CC2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.