Using NCC1COc2ccccc2O1, O=c1ccc2ccc(OCCCCl)cc2o1 to produce O=c1ccc2ccc(OCCCNCC3COc4ccccc4O3)cc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.