Using NCc1ccc(Oc2ccc3c(c2)COB3O)cc1, O=CC1CCCCC1 to produce OB1OCc2cc(Oc3ccc(CNCC4CCCCC4)cc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.