Using OC1CCNCC1, COc1cc(CCCCc2ccccc2OCC2CO2)cc(OC)c1 to produce COc1cc(CCCCc2ccccc2OCC(O)CN2CCC(O)CC2)cc(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.