Using C1COCCN1, CCCn1c(COC)nc2c(N)nc3ccc(OCCCCl)cc3c21 to produce CCCn1c(COC)nc2c(N)nc3ccc(OCCCN4CCOCC4)cc3c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.